The altitude of Polaris is 41°.
Polaris is located at 90° latitude just above the North Pole. So the angle between Polaris and the North Pole horizon is 90°. This angle is called the Polaris altitude. At the equator, Polaris is above the horizon and has an angle of 0°. Since the Earth is spherical, the position of the North Star relative to the horizon depends on the position of the observer.
Therefore the angle between the northern horizon and the Pole Star is equal to the observer's latitude. Polaris the brightest star in the constellation Ursa Minor serves as the North Star because it is near the celestial north pole. If you follow this axis from Earth's northern hemisphere into space, it points to a specific star in the sky. This star is called the Polar Star because it lies in the direction of the Earth's northern hemisphere along its axis of rotation.
Learn more about Polaris here:-https://brainly.com/question/1130377
#SPJ1
atom can be broken down by chemical reaction
How does hibernation help animals survive?
Responses
a.Hibernation increases the chances of meeting a mate.
b.Hibernation reduces the energy required for survival.
c.Hibernation protects the animal young from predators.
d.Hibernation makes access to food easier.
Answer:
I think the answer is B, hibernation reduces the energy required for survival
what are three types of consumers and how are they different
Answer:
Primary consumer are herbivores
Secondary consumer are carnivores
Tertiary consumer
The three sorts of consumers in the animal kingdom are carnivores, herbivores, and omnivores.
i. Carnivores eat only meat.
ii. Herbivores eat only plants, while
iii. omnivores have to consume both plants and meat to satisfy their dietary requirements.
Generally speaking, the citizenry is an omnivore. they have both plants and meat to survive. However, there are those that choose not to consume meat. they're called vegetarians.
Samples of herbivores are cows and sheep, which have unique digestive systems capable of breaking down the material.
Carnivores usually eat herbivores, and an example of those meat-eating animals is wolves. Some insects also can be carnivores, like the dragonfly, which hunts other insects for food.
Learn more about types of carnivores at:https://brainly.com/question/17944130
PLEASE HELP I NEED AN ANSWER NOW!!!!
Imagine that you are an astronaut who is on the Moon for a lunar eclipse (completely in the umbra). What will you see when looking back at Earth? Why? Will you be able to see Earth? How will it look? Will you be able to see the Sun? How will it look?
Answer: During the lead-up to a solar eclipse from the Moon, a viewer on the Moon would see the Sun approach the dark disk of Earth, with the planet's nightside facing the Moon. Earth's atmosphere would be lit from behind, creating a reddish ring around the planet that would glow brighter as the eclipse proceeded.
Explanation:
Which statement describes how the above labeled organelles interact within a cell?
A.
#1 releases energy for protein production and #5 produces the proteins.
B.
#2 releases energy for protein production and #3 allows proteins to enter and exit the cell.
C.
#4 provides instructions for making proteins and #2 site of protein synthesis.
D.
#5 packages and sorts proteins and #3 allows proteins to enter and exit the cell.
The statement that describes how the above labeled organelles interact within a cell are option C. #4 provides instructions for making proteins and #2 site of protein synthesis.
How do organelles communicate among themselves in a cell?Through MCSs, a lot of organelles are in close contact with one another. The most common theory is that these contact sites form as a result of membrane proteins acting as points on the contacting organelles.
Note that Organelles communicate with one another and MCSs are locations where two or more organelles are very close to one another and pass metabolites, and proteins in a lot of ways.
Learn more about organelles from
https://brainly.com/question/574002
#SPJ1
Upon release from the terminal cisternae, some calcium ions bind to ______ causing it to change shape.
Answer: troponin
Explanation: Calcium released from the sarcoplasmic reticulum bind to a subunit of globular troponin, a component of thin filaments.
Which idea is most directly related to Lamarck’s beliefs about evolution?
A frog’s legs grow during life to help it jump farther, and it passes on the longer legs to its offspring.
Humans and primates are classified in the same genus because they have similar traits.
If a population is left to reproduce without limiting factors, it will outgrow its food supply.
In one area, brown moths are better adapted to the environment than white moths, so they survive and reproduce.
Answer:
A frog’s legs grow during life to help it jump farther, and it passes on the longer legs to its offspring.
Explanation:
Lamarck believed that accumulation of small changes through successive generations promote the developement of new organs or characters which are transmitted to the offspring in the next generation (such as elongation of frog's leg). This is called inherirance of acquired characters.
2.why does an individual with antibodies for a species of streptococcus bacteria not automatically have immunity to all bacterial infections?
Numerous proteins found in the Helicobacter pylori secretum interfere with innate immune reactions.
These substances can attach to and obstruct Fc recognition by skilled phagocytes, or they can target monoclonal antibodies and/or complementary components for destruction in order to evade the action of the complement.
The scientists discovered that Group A Schizophrenia (GAS) produces the S peptide, a previously unidentified protein that clings to the membrane of red blood cells to prevent being ingested and eliminated by phagocytic lymphocytes. Consequently, a person does not necessarily become immune to all bacterial infections just because they have antibodies for a kind of streptococcus bacteria.
To know more about proteins
https://brainly.com/question/28427030
#SPJ1
What is the structure of prokaryotic chromosomes?
(a) circular DNA tightly wrapped around histones
(b) circular DNA with no histones
(c) long, linear DNA with no histones
(d) long, linear DNA tightly wrapped around histones
The structure of prokaryotic chromosomes is circular DNA tightly wound around histones.
What is the structure of DNA in prokaryotes?Chromosomes have a basic structure: a DNA molecule that has portions wrapped in grains formed by eight molecules of a protein called histone. Each histone grain with coiled DNA is called a nucleosome.
What is the function of the chromosome?A chromosome can be demarcated along its length into thousands of regions called genes. The function of chromosomes is to control cell functions. In addition, they carry an individual's genetic information through genes.
Learn more about structure of DNA in prokaryotes in brainly.com/question/2602537
#SPJ1
Which term names the metamorphic change to a rock that results mainly from the heat energy of nearby magma?.
Answer:
Contact metamorphism.
Write down the names of the organelles / molecules are involved in some way in building proteins.
Ribosomes are involved in some way in building proteins.They consist of two subunits and are found either lodged in the endoplasmic reticulum or floating freely in the cytoplasm of the cell.
The cell's protein producers are called ribosomes. The ribosome, which translates the genetic code generated in mRNA into an amino acid sequence, is universally responsible for protein synthesis. Ribosome structure and basic elements. About two times as big as the tiny subunit is the large subunit. Decoding the message and creating peptide bonds are the two main jobs of ribosomes. The ribosomal subunits are two big, unequal-sized ribonucleoprotein particles (RNPs) that carry out these two functions. There are many ribosomal proteins and one or more ribosomal RNAs (rRNAs) in each subunit (r-proteins).
Learn more about Ribosomes
https://brainly.com/question/241631
#SPJ4
all systems in the body are affected by bed rest or immobility. for the immune system, research has demonstrated that interleukin (il)-1, il-6, and tumor necrosis factor–alpha are increased during immobility or bed rest. what are these mediators associated with?
Findings suggest that IL-1 and TNF-alpha play an essential role in the acute stage of brain abscess development by regulating the subsequent anti-bacterial inflammatory response and they are increased during
What exactly are TNF and IL-6?
TNF-alpha and interleukin-6 are two cytokines that are important in the regulation of B-cell function (IL-6). They play different roles in B-cell differentiation and can be produced by B cells themselves when stimulated appropriately.
TNF and IL-1 are cytokines that are required for activating the innate immune response, mediating the recruitment, activation, and adherence of circulating phagocytic cells (macrophages and neutrophils), and terminating the innate immune response, respectively.
Therefore, IL-6 can promote the differentiation or proliferation of various non-immune cells.
Learn more about interleukin from the given link.
https://brainly.com/question/28481121
#SPJ4
If the population of a species is greater than its carrying capacity for a long time, what can that do to available resources in its ecosystem?
Answer: This can decrease our resources
Explanation: Since there are more people in the population that's going to take up more resources for more houses food and buildings.
You are a family practitioner. Which of the following patients you see is most likely to need Vitamin D supplements?
A. A man with olive skin who lives in Florida.
B. A woman with dark brown skin who lives in Michigan.
C. A woman with light brown skin who works outside year-round.
D. A man with light skin who spends his winters in Texas.
You are a family practitioner. A woman with dark brown skin who lives in Michigan of the following patients you see is most likely to need Vitamin D supplements.
What is Vitamin D?
Vitamin D is a fat-soluble vitamin that is added to some foods, found naturally in a few, and sold as a dietary supplement. When ultraviolet (UV) rays from sunshine strike the skin and start the synthesis of vitamin D, it is also created endogenously.The body needs to go through two hydroxylations in order to activate vitamin D that is consumed through diet, supplements, and sun exposure. During the first hydroxylation, which takes place in the liver, vitamin D is changed into 25-hydroxyvitamin D, sometimes referred to as "calcidiol." The second hydroxylation, commonly known as "calcitriol," is predominantly carried out in the kidney and results in the physiologically active 1,25-dihydroxyvitamin D.
Learn more about Vitamin D here:
https://brainly.com/question/15080220
#SPJ4
With the exception of flagellated spores for members of the chytridiomycota, fungi are mostly nonmotile. What adaptive feature allows them to be such successful decomposers, pathogens, and symbionts?.
The production of a large number of spores that are easily dispersed allows fungi to be successful decomposers, pathogens, and symbionts.
Fungal spores are spread by other species in addition to the wind and water. In the case of earthworms, fungi are spread by blending the soil layers. Additionally, fungus spores may stick to an insect's surface through hydrophobic interactions.
What are the features of fungi?
Following are a few features of fungi:
Eukaryotic, non-vascular, immobile, heterotrophic creatures are fungi.They could be filamentous or unicellular.They spread spores to reproduce.The phenomena of generational alternation are seen in fungi.Since fungi lack chlorophyll, they cannot engage in photosynthesis.To know more about the kingdom fungi, click on https://brainly.com/question/10878050
#SPJ4
Explain what it means to say that
natural selection is not random
Answer:
natural selection is not random because animals will look for a mate with a certain trait for survival
Explanation:
ok so think of it as how people in the olden days thought fat people to be more attractive to skinny people that was their instincts telling them that a larger person has access to food well animals will try to find their way around a problem in the next generation by breeding with a mate that will produce an offspring with that certain trait
due to the structural requirements for dna polymerases and the mechanism of replication of chromosomal dna, dna polymerases cannot replicate __________.
The 3' ends of linear DNA strands cannot be replicated by DNA polymerase.
A family of enzymes known as DNA polymerase is responsible for the synthesis of DNA molecules from nucleoside triphosphates, which are DNA's molecular precursors.
The enzyme DNA polymerase aids in the synthesis of DNA molecules from the building blocks of DNA, deoxyribonucleotides. They are necessary for DNA replication and typically function together to form identical DNA strands.
The initiation of DNA strand synthesis necessitates the presence of a 3' OH group by DNA polymerases. As a result, it can only synthesize in one direction by extending the 3' end of the nucleotide chain that already exists. This implies that the DNA polymerase forms the daughter strand in a 5'-to-3' direction as it moves along the template strand.
Learn more about DNA polymerase here: https://brainly.com/question/14445108
#SPJ4
This diagram shows different solutions of starch in a U-shaped container separated by a selectively permeable membrane. The water molecules are able to pass through the membrane, while the starch molecules are too large to pass through the membrane. image Which would most likely occur? A. Water would diffuse from the right side to the left side, because there is a higher concentration of starch on the left. B. Water would diffuse from the right side to the left side, because there is a higher concentration of starch on the right. C. Water would diffus
Osmosis is the passive transport of water molecules from one side to the other of a semipermeable membrane. Water moves from the most diluted side to the more concentrated side. When both sides are equally concentrated, there is an equilibrium, and water keeps moving equally in both directions.
Since I could not find the image and the options, I will propose three scenarios to answer this question. Then, you can choose the correct one according to your image. But first, let us review the osmosis concept.
What is Osmosis?Osmosis is the simple passive transport of water molecules that occurs when two dilutions of different concentrations -in this example, solutions of starch in a U-shaped container- are separated by a semipermeable membrane.
The membrane allows the passing of water but not solute (starch). Hence, water can move from the most diluted side (less concentrated) to the less diluted one (more concentrated).
Water motion searches for equilibrium. Once the concentrations at each membrane side are equilibrated (the same), water keeps moving from one side to the other but keeps this equilibrium between both solutions.
Now let us analyze different scenarios
Scenario 1 ⇒ The right side is more concentrated than the left side.
We can see more starch molecules on the right and more water molecules on the left.The left side is more diluted than the right side.The right side is more concentrated than the left side.Water moves from the left to the right, because there is a higher concentration of starch on the right.In this situation, the correct option is "water would diffuse from the left side to the right side, because there is a higher concentration of starch on the right".
Scenario 2 ⇒ The left side is more concentrated than the right side.
We can see more starch molecules on the left and more water molecules on the right.The right side is more diluted than the left side.The left side is more concentrated than the right side.Water moves from the right to the left, because there is a higher concentration of starch on the left.In this situation, the correct option is "water would diffuse from the right side to the left side, because there is a higher concentration of starch on the left".
Scenario 3 ⇒ The left side is as concentrated as the right side.
We can see the same amount of starch and water molecules on both sides of the membrane. Water constantly moves from the right to the left, and from the left to the right.Concentrations are equilibrated on both sides of the membrane, and water keeps moving.In this situation, the correct option is "water would diffuse from one side to the other of the membrane in equal amounts".
You can learn more about osmosis at
brainly.com/question/1799974
brainly.com/question/24581508
#SPJ1
of cephalochordates, urochordates, and vertebrates, which two are most closely related to each other than they are to the third, according to the most recent studies?
Urochordates and vertebrates are more closely related to each other than they are to the third, according to the most recent studies.
What is Urochordate?
The closest cousins of vertebrates are tunicates or urocordates. They are latitude-neutral marine organisms that feed through filters and can live either a planktonic or benthic lifestyle. With a few rare exceptions, they are hermaphroditic creatures that undergo indirect development. Tadpole-like swimming larvae are present in almost all tunicate species. In the class Ascidiacea, colonialism is common and a larval stage followed by metamorphosis is the norm.
An invertebrate with dorsal nerve cords and notochords called a Urochordata lives in the marine sea. They belong to the tunicate subphylum.
All animal taxa belonging to the subphylum Vertebrata, including all mammals, birds, reptiles, amphibians, and fish, are referred to as vertebrates. With around 69,963 species now known, the phylum Chordata is dominated by vertebrates.
Hence the correct answer is Urochordates and vertebrates.
To learn more about Urochordate from the given link
https://brainly.com/question/2495486
#SPJ4
if a deer herd has a population of 1,000, a carrying capacity of 2,000, and an intrinsic rate of growth of 10% (0.1), what is true of this deer population?
Breaths > Deaths is the population's genuine ratio.
Which population do you refer to?The total population or people of a nation or region. b: the entire number of people occupying a space or constituting a whole. c: the overall number of particle at a specific level of energy, particularly when referring to particles in a laser.
What is density and an illustration of it?A collection of creatures of the same species that coexist and breed in the same location at the same (e.g., human population, the population of apple trees, total population of deer in a forest). It is a percentage of a species' total population that lives in a particular area of the world.
To know more about population visit:
https://brainly.com/question/27991860
#SPJ4
what effect might you expect in a eukaryotic organism in which an enzyme essential for adding the 5' cap to rna polymerase ii transcripts was nonfunctional?
The organism wouldn't be able to make mRNA transcripts that are stable.
How is mRNA added with 5 cap?The guanyl transferase enzyme adds the cap. The reaction between a guanine triphosphate (GTP) molecule and the 5' end of the RNA transcript is catalysed by this enzyme. The interaction between the GTP molecule and the 5' end of the RNA transcript is easily shown in the above image. The cap, which is a modified guanine (G) nucleotide, guards the transcript against degradation. Additionally, it aids in ribosome attachment and mRNA reading, which is necessary for protein synthesis.
Prior to moving from the nucleus to the cytoplasm and beginning the process of translating into a protein, eukaryotic mRNAs must go through a number of processing stages. Eukaryotic mRNA maturation involves extra stages that result in a molecule that is far more stable than a prokaryotic mRNA.
learn more about Eukaryotic mRNA refer
https://brainly.com/question/24885193
#SPJ4
The myc gene is a commonly mutated site in cancers. The c-Myc protein decreases the expression of p21 and increases production of ribosomal RNA for protein production. These functions make myc a(n).
The c-Myc protein can decrease the expression of p21 and increase production of ribosomal RNA for protein production. These functions make myc an oncogene.
Ribosomal RNA is the one involved in the formation of ribosomes and thus helps in protein production. It is a non-coding RNA that means it has no information for the synthesis of protein. The synthesis of rRNA takes place in the nucleolus.
Oncogene is the gene that has the capability to become cancerous when mutated. These genes starts producing proteins that cause the rapid cell division and hence cause cancer. The type of mutation that occurs in these genes is called gain of function mutation.
To know more about oncogene, here
brainly.com/question/13959639
#SPJ1
What are the three types of fossiles and what made them form different
Three different types of fossils are impression fossils, trace fossils, and replacement fossils.
Impression fossils form when a leaf, shell, skin, or foot. leaves an imprint in soft earth. When the imprint hardens, it forms a fossil in the shape of the original.
Trace fossils They tells about geological records of the activities and behaviors of past life. These fossils are different from body fossils that preserve the actual remains of a body such as shells or bones.
Replacement occurs when the original shell or bone dissolves and then gets replaced by a different mineral . Mostly leave and ferns and dark imprint of fossils .
To learn more about fossils , here
brainly.com/question/6867325
#SPJ1
the main contributors to protein intake in the us is/are:
The main contributors to protein intake in the us is/are: meats and dairy.
Complete proteins, or those that include all of the essential amino acids our bodies require, are found in animal proteins like meat, eggs, and milk. The best sources of protein are those found in animal products.
Dairy products like milk, cheese, and yogurt are not only great sources of protein, but they are also rich in essential minerals like calcium and vitamin D. The two main proteins in milk are casein and whey protein. In bovine milk, casein makes up around 80% (29.5 g/L) of the total protein, while whey protein makes up about 20% (6.3 g/L).
Therefore, the main contributors to protein intake in the us is/are: meats and dairy.
Learn more about protein intake here:
https://brainly.com/question/27831066
#SPJ4
from which part of the nervous system do cells that innervate neuromuscular junctions originate?
From Central nervous system (CNS) do cells that innervate neuromuscular junctions originate.
The brain and spinal cord are the two components of the central nervous system: The brain is in charge of how we learn, think, move, and feel. The spinal cord relays information back and forth between the brain and the body's network of nerves. The processing hub of the body is the central nervous system. Most bodily processes, including as awareness, movement, thought, speech, and the five senses of sight, hearing, sensation, taste, and smell, are under the control of the brain. The brain, spinal cord, and cerebellum make up the central nervous system (CNS).
The body's organs, muscles, and senses communicate with the central nervous system (CNS) via the peripheral nervous system (PNS), which is made up of nerves. Two main components make up the nervous system: the brain and spinal cord
Learn more about central nervous system here:
https://brainly.com/question/24255030
#SPJ4
HELP ME FAST PLEASE What is a gamete?
a cell from a zygote with the diploid number of chromosomes
a cell used for reproduction that contains the haploid number of chromosomes
a cell used to protect the internal parts of the body that contains the diploid number of chromosomes
a cell used for reproduction that contains the diploid number of chromosomes
Answer:
a cell used for reproduction that contains the haploid number of chromosomes.
Explanation:
A gamete is a mature haploid male or female germ cell that is able to unite with another of the opposite sex in sexual reproduction to form a zygote.
Which of the following is the most important function of the skin? separating the body from its environment
B.
storing fat for energy use
C.
sweating to keep body temperature warm
D.
absorbing sunlight for energy
The most important function of the skin is separating the body from its environment and it is denoted as option A.
What is Skin?This is referred to as an organ which is responsible for the protection of individuals from foreign bodies and external agent due to its structure and and constituents.
The skin has three main layers which ensures that the body system is well protected and covered and is the largest organ of the body. The skin also helps to regulate the body temperature but it isn't its main function which was therefore the reason why option A was chosen.
Read more about Skin here https://brainly.com/question/306377
#SPJ1
Which type of organism gets energy from breaking down nutrients and uses co2 as a carbon source?
Chemo-heterotrophs gets energy from breaking down nutrients and uses carbon dioxide as a carbon source.
Chemoheterotrophs: microbes that use organic chemical substances as sources of energy and organic compounds as the main source of carbon. an organism that gets its energy from consuming intermediates or building components that it can't make on its own.
Organisms classified as heterotrophs obtain their energy by the regulated oxidation of preexisting organic molecules, or food. Humans are heterotrophs, just like the majority of other animals, fungi, protists, and bacteria. In their environments, autotrophic organisms frequently serve as the primary producers.
To know more about heterotrophs, refer to the following link:
https://brainly.com/question/14661735
#SPJ4
The image below represents an organism that a student observed while examining a sample of pond water with a light microscope. The student identified this organism as a prokaryote. Is the student's identification of the organism accurate, why or why not?
*
Captionless Image
The student identified this organism as a prokaryote the Trichodina has a nucleus.
You can find simple life forms like bacteria big oxygen producers like algae extraterrestrial protozoa of all kinds, and cute microscopic animals like petrels. A light microscope can magnify water droplets in a pond 100 times. It shows an active community of protozoa.
Nostoc and Anabaena are some of the most common bacteria found in pond water. As cyanobacteria, they are also responsible for the greenish color of pond water. Using an optical microscope we can observe living organisms and their movements. For example, you can observe microbes living in pond water droplets. Another type of microscope is the electron microscope.
Learn more about A light microscope here:-https://brainly.com/question/3174756
#SPJ1
which has its cell body in a ganglion?
postganglionic nerve cell. Ganglions are groups of nerve fiber cell bodies that are found in the peripheral nervous system (PNS).
Two major sections make up the peripheral nervous system: Controls uncontrollable body processes and manages glands is the job of the autonomic nerve system (ANS). The somatic nervous system (SNS) is responsible for regulating muscle action and transmitting sensory information to the brain from the skin, ears, and eyes. The majority of your senses are fed information by your PNS into your brain. You can move your muscles thanks to the signals it transmits. The brain uses signals from your PNS to command essential, automatic functions like breathing and pulse. The brain and spinal cord are components of the central nervous system (CNS), whereas all nerves that leave the brain and spinal cord and travel to other regions of the body, such as muscles and organs, are a part of the peripheral nervous system.
Learn more about peripheral nervous system here:
https://brainly.com/question/328696
#SPJ4
