A scientist uses tree rings to study past climate conditions. She observes a series of rings that are thicker than average.
Which would be the best conclusion for the scientist to draw about the years associated with the thicker tree rings?
a.The climate was cool and wet during those years.
b.The climate was warm and dry during those years
c.No answer text provided.
d.The climate was warm and wet during those years
Answer: d.)
Explanation: Because trees are sensitive to local climate conditions, such as rain and temperature.
What is a human genome sequence?
Answer:
The human genome is the complete set of nucleic acid sequences for humans, encoded as DNA within the 23 chromosome pairs in cell nuclei and in a small DNA molecule found within individual mitochondria. These are usually treated separately as the nuclear genome, and the mitochondrial genome.
a report on the role of chromosomal multiplicity(polyploidy)in the field of agriculture.
Not less than 50 words.
50 points plz help me guys !!
Answer and explanation:
Chromosomal multiplicity, also known as polyploidy, is the name given to the cell or organism that has a numerical change in its whole set of chromosomes (for example, a triploid organism of a diploid species is a polyploid because it has an extra set of chromosomes than the rest of its species). Most species are diploids, but polyploidy is quite common in plants.
In agriculture, polyploidy can be beneficial by giving the plants better chances of survival and/or providing more desirable traits. Crop species such as bread wheat and triticale (a wheat and rye hybrid), for example, have 6 sets of chromosomes. Quinoa, coconut, and peanut are tetraploids (4 sets of chromosomes). Many of these cases of polyploidy in plants of importance for the agriculture field are a result of hybridization (which occurs when two different species are crossed in order to produce offspring with a combination of characteristics of the two-parent species).
List the amino acids in the order they would appear in the
polypeptide coded for by this mRNA. Use only the 1st
three letters.
An active transport process by which a vesicle moves a large substance out of the cell is known as __________.
osmosis
endocytosis
exocytosis
diffusion
Answer:
I'm pretty sure it is exocytosis. Because exocytosis transports vesicles out of the cell through the plasma membrane. Remember it as "exo" = exit.
Answer:
C. Exocytosis
Explanation:
The first thing we notice is that the question says "active transport". Looking at the answer choices, we see that "osmosis" and "diffusion" are options.
However, remember that osmosis (the diffusion of water from high to low concentration) and diffusion (the movement of particles from high to low concentration) are both passive transport; in other words, they don't require an input of energy. So eliminate them.
Now look at endocytosis and exocytosis. "Endo" means "inner", so "endocytosis" means the cell is engulfing a substance and bringing it inside. However, we want the process where a substance is moved out.
"Exo" means "out", so "exocytosis" means to expel something. That matches here, so our answer is C.
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The Seven Sisters are seven stars located more than 400 light-years away in the Taurus constellation and they can be seen here with Venus and another constellation, Orion. Why do these stars seem so small compared to our Sun, also a star?
A) Our Sun is much larger than any of the Seven Sisters.
B) Our Sun is much closer to Earth than the Seven Sisters.
C) The Seven Sisters are ancient stars; the Sun is a young star.
D) Stars found in constellations are much older and smaller than any other stars.
Answer:
The reason why these stars seem so small compared to our Sun is:
B) Our Sun is much closer to Earth than the Seven Sisters.
Explanation:
The reason behind this is that the sun is at a distance of the earth of 0.000016004 light-years. While the seven stars are at a distance of 400 light-years. Making them so far away that their size is reduced because in physics object size is altered by the perspective of the watcher or observer. Meaning that a ball the size of a car can be seen by our eyes as small as a bean if it is at the proper distance.
A species has homologous chromosomes. What does this say about the species?
A. It has alleles that control certain traits
B. It has pairs of matching chromosomes
C. Its a eukaryote and a haploid species
D. It has DNA that is made of of genes
100 Points Pls Help Me Will Give brainliest And 5 starr
Short Answer
Answer each question in the space provided.
31. Briefly describe how igneous rocks form. How do both of the two main subcategories form?
32. Briefly describe how sedimentary rocks form. How do both of the two main subcategories form?
33. Briefly describe how metamorphic rocks form. How do both of the two main subcategories form?
Answer: 31, Igneous rocks are formed from lava or magma. Magma is molten rock that is underground and lava is molten rock that erupts out on the surface. The two main types of igneous rocks are plutonic rocks and volcanic rocks. Plutonic rocks are formed when magma cools and solidifies underground
32, Sedimentary rocks can be organized into two categories. The first is detrital rock, which comes from the erosion and accumulation of rock fragments, sediment, or other materials—categorized in total as detritus, or debris. The other is chemical rock, produced from the dissolution and precipitation of minerals
33, Rocks are formed on Earth as igneous, sedimentary, or metamorphic rocks. metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock.
Jse the diagrams below to answer questions 4 - 6.
PICTURE #1
A
PICTURE #2
B
1
Lawnmullam
– រលាក។
'D
E
etter from the pictures
What does each letter represent?
Answer:
F6cyxt, s5, cvfrrcezevtgfddryib
Explanation:
3dtccrze7och.cyv ph g cu7 f i hi. G8
please hurry! thank you. :D (30 points, too!)
Insulin Is a hormone that helps balance blood glucose levels. The graph shows the concentration levels of Insulin and glucose In the blood after Ingestion of a carbohydrate-rich meal.
Based on the graph, what can be concluded?
A, the concentration of Insulin Increases with a decrease In glucose concentration to allow rapid uptake of glucose by cells.
B, The concentration of insulin increases with an increase in glucose concentration to allow rapid uptake of glucose by cells.
C, The concentration of insulin increases with a decrease in glucose concentration to allow cells to release glucose into the bloodstream.
D, The concentration of insulin increases with an increase in glucose concentration to allow cells to release glucose into the bloodstream.
Answer:
I think it is B!
Explanation:
The graph shows when the insulin increases, the glucose also increases rapidly!
10. What is the likely cause of tooth decay?
A. a lysogenic virus infecting the living cells of the
tooth
B. bacteria feeding on the sugar in the mouth and
producing acid
C. an excess of vitamin K production by mouth
bacteria
D. nitrogen-fixing bacteria releasing ammonia that
is eroding the tooth enamel
Doctors sometimes use a vaccine to help prepare the body to defend itself against future infections. These vaccines most often contain
Answer: weakened pathogens
Explanation:
Each vaccine contains a small amount of the disease germ (virus or bacteria) or parts of the germ.
A pathogen is a bacterium, virus, or other microorganism that can cause disease.
Si cruzamos dos individuos homocigotos de cobaya, uno negro y otro blanco, y sabemos que el carácter negro es dominante sobre el blanco. Su descendencia tendrá la siguiente características
Answer:
The offspring will be black because they are heterozygous for a dominant trait that is controlled by monogenic inheritance.
Explanation:
Guinea pigs will be heterozygous because they inherit a dominant allele that encodes for the black color and a recessive allele associated with the white color. Heterozygosity is a genetic condition associated with the presence of two alleles at a locus which are inherited from both parents, one from the mother and the other from the father
Please help! 25 points:)
Answer:
D. IV -> III -> II -> I
Explanation:
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.
What does the circulatory system do?
A. Sends hormones to the body
O B. Moves blood around the body
C. Brings oxygen into the body
O D. Defends against invaders
Moves blood around the body
The circulatory system moves blood around the body. Therefore, option (B) is correct.
What is circulatory system?The circulatory system, also known as the cardiovascular system, is responsible for the circulation and transportation of blood, oxygen, and nutrients throughout the body. It includes the heart, blood vessels, and blood. The heart pumps blood to the lungs to become oxygenated, and then circulates the oxygen-rich blood to the rest of the body through arteries.
Veins carry deoxygenated blood back to the heart, where it is pumped to the lungs to receive oxygen. The circulatory system also plays a role in removing waste products from the body, such as carbon dioxide, and helps to regulate body temperature, pH balance, and fluid balance. The circulatory system is essential to maintaining the proper functioning of all cells, tissues, and organs in the body.
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can we get super natural powers by animals
Answer:
no
Explanation:
JUST NO
Answer:
Big no.
Explanation:
Impossible.
How do the data that Samantha obtained help explain the way that the body maintains homeostasis during exercise? Include the activities of at least three body systems in your explanation.
Answer:
the way that the body maintains homeostasis during exercise is the removal waste product such as carbon dioxide gas which is produced during cellular respiration.
Explanation:
During exercise, the body needs more oxygen and nutrients. For this purpose, energy is released in the process of cellular respiration. The product of cellular respiration the generation of energy in the form of ATP and carbon dioxide gas. ATP is used by the body while carbon dioxide is removed from the body during breathing. During exercise, the glucose is provided by the digestive system to the mitochondria of the cell and the waste product is removed through respiratory system of the body while the circulatory system sends energy molecules where it is needed in the body and carbon-dioxide to respiratory system for removal.
What are asexual spores
Answer:
Asexual spores comes with both the male and female reproductive parts, in which one part of the spore produces the sperm (male), which mates with the egg (female), which is produced in a different part of the spore. It is asexual, for the beast or plant only needs itself (not another of the same family) to reproduce.
WILL GIVE BRAINLIEST!!LAST TRY!!!!SHARE YO SMARTNESS WITH THE DUMB (ME) LAST CHANCE!!
Which of the following are visual models to represent the flow of energy between trophic levels in an ecosystem? (Choose all that apply)
A) food web
B) food pyramid
C) energy pyramid
D) food chain
Answer:
Energy Pyramid, Food Web, and Food Chain
Answer:
A) food web
C) energy pyramid
D) food chain
Explanation:
Scientists use several types of visual models to represent the flow of energy between trophic levels in an ecosystem.
PLEASE HELP TODAYS MY LAT DAY I NEES THIS GRADE
What are the weaknesses or inaccuracies in the model the student created?
Answer:
The model appears to show the carbon dioxide molecules entering the blood cell and the oxygen molecules existing the cell.
Answer:
Explanation:
The model doesn’t clearly show that gas exchange happens in the alveoli through the capillaries. The model can also be easily misinterpreted. Because the model doesn’t show where this gas exchange is taking place, it looks like the blood picks up oxygen, delivers it to the body, and then comes back and expels the carbon dioxide it collects. Clarifying that this gas exchange is taking place in the capillaries would eliminate this confusion.
Describe how the carbon cycle transfers matter between organisms and their environment. Include three examples. For each example identify which of Earth's spheres (hydrosphere, geosphere, atmosphere, and biosphere) are involved in the exchange of carbon.
Answer:
Crabon is consumed by plants to produce food and taken by other organism as food from plants. They release then CO2 either through respiration or when they die. During this entire chain, carbon moves through all the spheres of earth
Explanation:
Carbon constitutes the base of life on earth. Carbon and its compound regulate between the different spheres of earth to sustain the ecosystems and flow of nutrients and energy.
Carbon is exchanged between all the hemisphere i.e biosphere, geosphere, hydrosphere and atmosphere. For instance – The ocean consists of largest reserve of carbon on earth (part of hydrosphere), Terrestrial biosphere comprising of non-living organic materials and fresh water sources as sink of carbon in biosphere. The sediments and soils consists of carbon (geosphere) and atmosphere consists of a large amount of gaseous carbon dioxide.
Plants take in gaseous carbon dioxide and produces food that stores in it or is consumed by other living organisms. When these organic animals or plants die eventually, they release the solid carbon contained within them either in the geosphere, biosphere or hydrosphere.
Describe how changing a biotic or abiotic factor can influence an entire biome. Could changing biotic or abiotic factors be responsible for the decrease in phytoplankton populations introduced at the beginning of this lesson? Explain.
Answer:
it can change weather things will live or die
Ecological succession occurs when changes to either abiotic or biotic factors have an impact on an entire ecosystem. The replacement of one community of creatures, such as a plant or animal, by another is known as ecological succession. A forest fire is one illustration.
What biotic or abiotic factor can influence an entire biome?An ecosystem's overall health is also influenced by biotic factors such as the diversity of consumers and the presence of autotrophs, or self-sustaining organisms like plants.
Abiotic variables have an impact on an organism's capacity for survival and reproduction. Populations are constrained in their expansion by abiotic forces. In an ecosystem, how these elements interact is crucial.
Therefore, it can change weather things will live or die.
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Louis pasteur tambien propuso que los microorganismos son la causa de algunas enfermedades escribi que problema pudo haber llevado a pasteur a proponrr esta teoria
Answer:
This is because ladybugs are replaced by pesticides that are responsible for not only contaminating crops but also for releasing dangerous gases into the ozone layer. Therefore, the use of these insects in crops makes the air more pure or avoids contaminating it with life-threatening pesticides for many living organisms.
The microbial theory of disease or germ theory of infectious diseases is a scientific theory that proposes that microorganisms are the cause of a wide range of diseases. These tiny organisms, almost all too small to see with the naked eye, invade humans, animals, and other hosts. Its growth and reproduction within the carrier can cause disease. "Germ" or microbe can refer to a virus, bacteria, protist, fungus, or prion.
Explanation:
The theory was a scientific discovery made in the second half of the 19th century, demonstrated by Louis Pasteur and that replaced previous explanations for the disease, such as the miasmatic theory or the theory of humors. Although highly controversial when proposed, it is now central to modern medicine and clinical microbiology, leading to such important innovations as the development of the vaccine, antibiotic, sterilization, and hygiene as effective methods against the spread of contagious diseases.
What are two reasons scientists classify organisms into groups?
A. To make it easier to communicate about organisms
B. To make sure scientists get credit for their discoveries
C. To understand why different organisms exist on earth
D. To understand how different organisms are related
Answer:
The answer is C and D.
Explanation:
To classify organisms into group is to understand why different organisms exist and how are they related .
(Correct me if I am wrong)
The two reasons scientists classify organisms into groups -
A. To make it easier to communicate about organisms
D. To understand how different organisms are related
Classification of organismScientists classified all the living beings into different kingdoms, phyla, classes, etc, and are based on different criteria. Living organisms are classified mainly make the study of organisms easy.
how various organisms are related to each other and easier to communicate about organisms by classification. It helps in avoiding confusion about their regional name and helps in called by a specific pattern universally.
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Which of these is a reason why two different people might require different caloric intakes on a daily basis?
Answer:
the answer is different body efficiencies
Because i had this question before so this is the true and right!
hormones trigger the release of gamete cells from the gonads. this is an interaction between ____ & _____ systems
A endocrine and reproductive
B nervous and reproductive
C excretory and circulatory
D digestive and respiratory
How long does it take for a person to die after being bitten by an cotton mouth snake
Just wondering
one day
Explanation:
because of the prison
Plants obtain their organic nutrients (carbon, hydrogen, and oxygen) by:
ingesting food
photosynthesis
fermentation
chemosynthesis
Answer:
photosynthesis
Explanation:
plants can absorb most if not al of the things through their leaves alone to get organic nutrients. The roots are for more less organic nutrients like fertilizer etc...
Answer:
photosynthesis
Explanation:
photosynthesis literally be like:
HEY YOU CO2 ! YEA YOU! come 'ere litle guy. let's brEAK U APART, SHALL WE? there u go, broken into carbons...
33 indica si las siguientes frases son verdaderas o falsas y corrige las falsa A) la competencia es una relación exclusivamente interespecífica B )los parásitos pueden matar al huésped C ) las poblaciones gregarias son aquellas en las que existe una jerarquía entre los individuos D) en las poblaciones coloniales individuos de distintas especies crecen unidos entre sí E) En las relaciones de mutualismo y comensalismo una de las especies resulta indiferente a la relación F) La cooperación entre individuos beneficia tanto a estos como a la población G) La simbiosis es una relación beneficiosa para ambas especies
The answers to these question are the following:
A) False
B) True
C) False
D) False
E) False
F) Flase
G) True
Explanation:
A) Competency can also be intraspecific
B) Parasites often cause the death of their hosts
C) There are gregarious organisms whose populations have no defined hierarchies
D) Colonial populations may be formed by organisms from the same species
E) Mutualism is a beneficial association for both species
F) Not necessarily, there are cases where this type of association only benefits to individuals
F) Symbiosis is the association among organisms from different species that benefits both species
An ice cube melts in a room, this is an example of what type of energy??
A.chemical
B.thermal
C.mechanical
D.nuclear
Answer: Thermal
Explanation: Process of elimination, no chemical reaction, or mechanical or nuclear.
