Answer:
mitosis and meiosis.
Explanation:
There are two types of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells. Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life.
Please help 15 points !!! (Based on the scientific sources you found, did you think one person’s points were more simnifically valid than the others?)
Yes. Many of the fitness instructor's arguments were refuted by the scientific sources. He claimed, for instance, that GMO foods cause food allergies, however this was refuted by two reliable authorities.
What is cause of allergy?When the immune system responds to a food or substance that typically doesn't trigger a reaction in most people, such as pollen, bee venom, or pet dander, allergies can develop. Antibodies are chemicals made by your immune system.
Can an allergy self-heal?Allergies cannot be cured, but the symptoms could be managed and treated. It might require some effort. You'll need to adjust your environment a little or learn how to avoid things that set off allergic attacks.
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What happens to the cell itself once all its processes are focused on building new viruses?
Observe the model below. Explain one strength (advantage) of the model and one limitation (disadvantage).
The double-stranded structure of DNA guarantees that the genetic information stored in it is difficult to change. However, due to the structure of DNA, it does not replicate as quickly as RNA.
What exactly is the structure of DNA?DNA has a double-stranded helix structure. Double strands of DNA are made up of complementary strands that run antiparallel to one another. Each strand is made up of nucleotide molecules linked together by phosphodiester linkages.
DNA's double-stranded structure is significant for the following reasons: This guarantees that each strand may be used as a template to produce or copy the genetic information contained in DNA.
It ensures the long-term storage of genetic information in DNA. However, Rna polymerase takes longer than single-stranded RNA replication due to structural differences. Changes in DNA take time as well.
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What is the missing word? Stem cells have not yet __________, so they retain the ability to develop into other types of cells.
explain the role of every organization and media in contagion movie ?
Users commonly expressed unpleasant sentiments on social media platforms and shared those emotions.
What are social networking sites used for?The term "social media" refers to online platforms that enable people to share, create, and/or exchange knowledge and ideas with one another. In charge of managing is the Office of Communications und Marketing.
What is the function of social media?Social media is used by billions of people to communicate and exchange information on a global scale. Social media allows you to connect with loved ones, learn new things, pursue your interests, and find enjoyment for yourself.
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The largest carbon reservoir on Earth is coal.
True
False
Answer:
True this is the answer bro
Which stage of cell cycle does cells divide into 2 cells
Answer: Cytokinesis
Explanation: P. S. it's not a stage, just the final step.
hope this helps.
6. Cite a place in the world where population growth is NOT a problem today. How is it a problem?
Answer: Massively fertile coastal plain that can support plenty of people. Total agricultural land in the EU is 137 million hectares, while China's is 520 million hectares. And it is a problem because of too much population in one land using up all the resources.
Which statement is true about photosynthesis and cellular respiration?
The steps in both processes are very similar to each other.
Both processes are carried out in the same location in the cell.
Photosynthesis occurs in plants; cellular respiration occurs in animals.
The chemical equations for the processes are opposite of each other.
Answer: Photosynthesis occurs in plants; cellular respiration occurs in animals.
Explanation: In took Biology and Aced it!
You probably know that you need to breathe oxygen to survive. But how does your body use that oxygen? That oxygen helps your body to release _____ energy that is stored in _____ and other carbon based molecules. The energy is _____ to produce _____. This process of using _____ to produce _____ by breaking down _____ molecules is called _____.
That oxygen helps your body to release chemical energy that is stored in sugars and other carbon based molecules. The energy is released to produce ATP. This process of using oxygen to produce ATP by breaking down carbon-based molecules molecules is called cellular respiration.
What is cellular respiration?In Science, cellular respiration can be defined as a series of metabolic chemical reactions that typically occur in both prokaryotic and eukaryotic cells within living organisms, in order to produce energy in the form of adenosine triphosphate (ATP).
Generally speaking, the first step of cellular respiration is a biological and chemical process that is referred to as glycolysis.
In conclusion, we can reasonably infer and logically deduce that all living organisms such as humans, animals, eukaryotes, etc., breathe in oxygen and exhale carbon dioxide in order to survive, which occurs through a process that is referred to as cellular respiration.
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During a muscle contraction, why is ATP required?
Answer:
ATP is critical for muscle contractions because it breaks the myosin-actin cross-bridge, freeing the myosin for the next contraction.
Explanation:
How do pollinators help
angiosperms?
A. Pollinators help disperse a plants
seeds when they eat the fruit and then
expel the seeds.
B. Pollinators help plants adapt to
their environment through natural
selection.
C. Pollinators eat nectar from the
flowers and pick up and drop pollen as
they move between flowers.
this
Answer:
c
Explanation:
please add me on brainliest please
Answer: C. Pollinators eat nectar from the flowers and pick up and drop pollen as they move between flowers.
Drag each item to the correct location.
To answer the question, crust and mantle come under Compositional layers. The mesosphere and asthenosphere come under the Physical layers of Earth.
The Compositional layers of the Earth include the Crust, Mantle, and Core. The crust is the outermost layer of the Earth, where we currently live in. The mantle is the layer below the crust, and, by volume, the largest chemical layer as well. The Core is the innermost layer of the Earth, discovered by scientists in 1906.
The Physical layers of Earth include Lithosphere, Asthenosphere, Mesosphere, Outer core, and Inner core. The lithosphere defines as the outermost physical layer of Earth, which is broken into segments called plates. The asthenosphere is the layer residing below the lithosphere, has multiple plates, and is considered unbroken, unlike the lithosphere. The outer core is the only layer of Earth consisting of only liquid entirely, whereas the Inner core exists within the liquid outer core.
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Electromagnetic radiation travels
A. in an unpredictable way
B. as a straight line
C. as a square
D. as a wave this is answer
Electromagnetic radiation travels as a wave
Electromagnetic radiation is a form of energy that propagates as both electrical and magnetic waves travelling in packets of energy called photon and there is a spectrum of electromagnetic radiation with variable wavelength and frequency and which in turn impart different characteristics and electromagnetic radiation is a type of energy that commonly known as light and generally light travels in waves and all electromagnetic radiation travel at the same speed and which is about 3.0×10⁸m/s through a vacuum and electromagnetic waves are produced by motion of electrically charged particles
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Which of the following are outcomes due to the creation of synthetic fertilizers?
More food waste
Decreased food production
Less runoff pollution
Poor quality produce
Answer:
Poor quality produce
Explanation:
Because synthetic fertilizers are man-made,It has higher levels of Nitrogen and phosphorus which causes weak bones, increased diseases of heart and stroke tendency,hence poor quality products when compared with natural fertilizers
Explain how active transport works in a cell
Answer:
substances move against the concentration gradient, from an area of low concentration to an area of high concentration
Explanation:
Answer: Active transport is the movement of a substance across a cell membrane against its concentration gradient; From a low to a high concentration.
Explanation:
There are two types of active transport:
1) Primary Active Transport - Primary active transport, also called direct active transport, directly uses energy to transport molecules across a membrane. Most of the enzymes that perform this type of transport are transmembrane ATPases. A primary ATPase universal to all life is the sodium-potassium pump, which helps to maintain the cell potential. Other sources of energy for Primary active transport are redox energy and photon energy (light). An example of primary active transport using Redox energy is the mitochondrial electron transport chain that uses the reduction energy of NADH to move protons across the inner mitochondrial membrane against their concentration gradient. An example of primary active transport using light energy are the proteins involved in photosynthesis that use the energy of photons to create a proton gradient across the thylakoid membrane and also to create reduction power in the form of NADPH.
Secondary Active Transport - In secondary active transport or co-transport, energy is used to transport molecules across a membrane; however, in contrast to primary active transport, there is no direct coupling of ATP; instead, the electrochemical potential difference created by pumping ions out of the cell is used. The two main forms of this are antiport and symport.
Explain why the response of the eye to light is faster than the response of
the seedling to light.
Answer:
Eye is controlled by brain which is quicker than the seedling. When the light enters the eye, the optic nerves detect the light and sends the message to the brain quickly. This speed of response is not in plants. Therefore, the response of the eye to light is faster than the response to seedling to light.
Explanation:
Which of the following groups
of animals could be found in
temperate grasslands?
A. deer, fruit-eating birds, lizards, and snakes
B. bison, longhorns, burrowing animals, birds this
that nest on the ground, and foxes
C. migratory animals, oxen, caribou, and artic
foxes
D. lions, rhinoceros, giraffes, and elephants
1. Use the diagram of the molecule at the right to answer this question.
The molecule above is made up of only a few different atoms- for each of the atoms listed below tell me how
many of that type of atom there are (just count them up!)
# of Carbon atoms =
# of Hydrogen atoms =
# of Oxygen atoms =
# of Nitrogen atoms =
According to the diagram the number of No. of Carbon atoms is 9, the number of oxygen atom is 2, the number of hydrogen atom is 9 and the number of nitrogen atom is 0.
The molecule which can be made by the carbon , hydrogen as well as nitrogen atom can be referred as organic molecule.
A complex molecule known as an organic was predominantly bonded carbon atoms joined to other atoms of the same element and/or additional carbon atoms. Each and every living creature on Earth is made up of organic components. Atoms that are bound together form molecules.
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examples and non examples of a atom
HELP ASAP!!!! 20 POINTS!!!
Situation: A scientist collected the data below in relation the the reproduction of the cells in a science experiment.
Part A: Explain the type of growth that is shown in this experiment.
Part B: What stage of the cell cycle would you expect most of the cells to be in? Explain.
Answer: Part A: Exponential Growth
Part B: Interphase
Explanation: Part A: This is showing exponential growth because its increasing the quantity over time.
Part B: A cell spends most of its time in interphase because the interphase is the phase in the cell cycle that consists of three sub-stages which are (G1), (S), and (G2). It makes the cell grows and makes a copy of itself.
Describe and list the contents of the dural sinuses, subdural space, and subarachnoid space.
Dural sinues: This forms at the base of the three folds
Subdural space : This contains the serous fluid.
Subarachnoid space: This contains blood vessels and cerebrospinal fluid.
What is Subarachnoid space?The Subarachnoid space is defined as the space that separates the brain from the skull. It is known to be fluid filled with the cerebrospinal fluid. This helps to provide cushion effects in case of injury or trauma to the head.
Dural sinues: These sinuses are located at the dura mater between the endosteal and meningeal layers of the dura mater. They contain venous blood that originates for the most part from the brain or cranial cavity.
Subdural space : This is a potential space that can be visible when the arachnoid mater is separated from the dura mater. It is filled with serious fluid that aids in lubrication.
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Explain how the prairie is different now from how it was in the past.
Answer:
something
Explanation:
Question 9 of 10
Which definition best describes a base?
Answer:
Explanation:
1
URGENT
A steroid hormone approaches its target cell. Which will happen first?
The hormone will enter the nucleus
The hormone will combine with proteins to form lipoproteins
The hormone and its receptor will interact with the DNA
The hormone and its receptor will enter the cell’s nucleus
A steroid hormone approaches its target cell, therefore the hormone will enter the nucleus and is what will happen first which is therefore denoted as option A.
What is a Hormone?This is referred to as a chemical messenger which is released directly into the bloodstream and is responsible for the control of certain metabolic reactions occurring in the cell and an example is steroid hormone such as androgens.
In a situation whereby a steroid hormone approaches its target cell, it first passes through the plasma membrane before it then becomes adhered to the receptors which are present in the nucleus or cytoplasm.
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What cellular structure is degenerating and rebuilding in ms
Answer: Myelin Sheath
Explanation:
In Multiple sclerosis (MS), your immune system attacks the myelin sheath or the cells that produce and maintain it. This attack causes inflammation and injury to the nerve sheath and ultimately to the nerve fibers that it surrounds. The process can result in multiple areas of scarring (sclerosis).
One out of every hundred people of the Hopi Indian tribe inherits the autosomal recessive disease Glucose-6-phosphate deficiency. How many people in the population of six million are carriers of this disease?
Following the Hardy-Weinberg equilibrium theory, in a population of six million people, 1,080,000 individuals are healthy and carriers (heterozygous) for the trait.
What is the Hardy Weinberg equilibrium?The Hardy-Weinberg equilibrium is a theory that states that populations in equilibrium get the same allelic and genotypic frequencies generation after generation.
These populations do not evolve. No evolutive forces are acting on them.
Assuming a diallelic gene, frequencies are
Allelic frequencies
p is the dominant allele frequencyq is the recessive allele frequencyGenotypic frequencies
p² is the frequency of the homozygous dominant individualsq² is the frequency of the homozygous recessive individuals2pq is the frequency of heterozygous individuals
In a population in equilibrium,
p + q = 1p² + 2pq + q² = 1We will consider these equations to solve the problem.
Glucose-6-phosphate deficiency is an autosomal recessive disease.One out of every hundred people of the affection. So this is the homozygous recessive genotypic frequency.Because we have the frequency of the homozygous recessive genotype, we can get the allelic frequency.
q² = 1/100 = 0.01q = √q² = √0.01 = 0.1Now, by clearing the equation p + q = 1, we can get the dominant allele frequency. And then, the frequency of the homozygous dominant genotype.
p = 1 - 0.1 = 0.9p² = 0.9² = 0.81Finally, we can get the frequency of the heterozygous genotype
2pq = 2 * 0.9 * 0.1 = 0.18The number of individuals with each phenotype in the population is,
0.81 * 6,000,000 = 4,860,000 individuals are healthy not carrier0.18 * 6,000,000 = 1,080,000 individuals are healthy carriers. 0.01 * 6,000,000 = 60,000 individuals have the disease.In a population of six million people, 1,080,000 individuals are healthy and carriers (heterozygous) for the trait.
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MItosis:
Takes one cell and replicates it into two genetically identical cells.
Takes one cell and replicates it into two genetically unique cells.
Takes two cells, one from each parent, and replicate it into four genetically unique cells.
Takes one cell and replicates it into four cells, each with half of the original cell's genetic information.
Answer: hope this helps have a wonderful day
the answers are adcdbcbcacdbc
Explanation: written questions
1. Raul has scraped his knee and noticed that after a week it had almost completely healed. Raul wondered how the skin was able to repair itself while looking exactly the same as his non-injured skin. In 3-5 sentences explain how mitosis plays a role in healing skin after injury and is able to maintain the look of the existing, non-injured skin
Injured skin produces C-rays that allow for skin to knit itself back together. These C-rays are always present in cells, but are only activated during mitosis by injured skin. This is why there is sometimes scarring left after injury, as the C-rays are not activated as much as healing occurs.
2. In three to five sentences, explain the advantage of keeping some DNA needed by mitochondria in the cell’s nucleus and some in the mitochondria itself.
Mitochondrial DNA is the small circular chromosome present inside the cell organelle called mitochondria used for energy production. This type of DNA passes from the mother to the offspring. Mitochondrial DNA (mtDNA) has several advantages over nuclear DNA (nDNA):for species identification purposes including a higher copy number a lack of sequence ambiguities from heterozygous genotypes .a faster rate of mutation
3. In 3–5 sentences, construct a summary of the process of gene expression, starting with DNA and ending with proteins
The process of gene expression starts with the transcription of the genetic information in the DNA into genetic codes in the form of messenger RNA.
The messenger RNA then undergoes some processing such as modification of tails and removal of non-coding sequence before the genetic codes are translated to their respective amino acids in a process known as translation.
The amino acids are linked together by peptide bonds and the resulting primary protein structure is folded in specific ways depending on their functions.
Mitosis takes one cell and replicates it into two genetically identical cells. Thus, the correct option for this question is A.
What is Mitosis?Mitosis may be defined as a type of cell division through which each parental cell is typically divided into two daughter cells. These daughter cells are genetically identical to the parental cell and are mostly diploid in nature.
On contrary, meiosis is another type of cell division in which each parental cell is divided into four daughter cells which are genetically unique to the parental cell. These daughter cells are haploid in nature. This type of division is known as reductional division. It occurs in the germ cells of organisms.
Therefore, mitosis takes one cell and replicates it into two genetically identical cells. Thus, the correct option for this question is A.
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Groups of cells working together form:
You are working at a night clinic as a nurse practitioner and are assessing a 35-year- old male who is complaining of mild-grade fever and a persistent, productive cough that at times appears to have blood. He states he has lost weight in the past 6 months and often wakes up drenched in sweat. He has treated his symptoms with over-the-counter medications but feels that his symptoms are worsening. He had recently traveled to India on business.
Based on the given symptoms by the patient who is a 35-year- old male who is complaining of mild-grade fever and a persistent, productive cough that at times appears to have blood, he is most likely suffering from rheumatoid arthritis
What is Rheumatoid Arthritis?This refers to the medical condition that a person can have which can cause them to have pain, swelling, and stiffness in joints as also Fever, fatigue or tiredness, and general body weakness.
Hence, we can see that the patient who complains of these symptoms has said that he has lost weight in the past 6 months and often wakes up drenched in sweat and had recently traveled to India on business, and he should immediately be put on medication and further tests.
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