The nucleus is present in the cell body.
Nerve cell:Nerve cell is a basic unit of communication. Each nerve cell contains axon, cell body, dendrites and terminal branches. There are about 85 to 200 billion neurons present.
Neurons are surrounded by a cell membrane.Neurons have a nucleus that contains a gene.It also have cytoplasm, mitochondria and other cell organelle.Neurons are of different types:
Unipolar neuronBipolar neuronMultipolar neuronNeurons are the chemical messenger. They contain nucleus which contain genetic material. Mitochondria produces energy. Neurons contain specialized structures and chemicals. They contain some specialized structures (synapse) and chemicals called neurotransmitter.
Therefore, The nucleus is present in the cell body.
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How many characteristics are required for something to be considered alive?
In pigeons, the allele B produces blue feathers. The allele W produces white feathers. The B and W alleles are codominant. A blue and white pigeon BW is crossed with a solid white pigeon WW. What percent of the offspring are expected to be blue and white?
Answer:
The correct answer is - 50%.
Explanation:
Codominance is a type of inheritance that takes place when the genotype of an individual organism in heterozygous condition express traits of both alleles.
Cross between blue and white pigeon and pure white:
BW × WW and gametes will be B and W and W and W
B W
W BW WW
W BW WW
There are 50% of BW that is blue and white pigeons
Why id evaporation considered to be an endothermic process?
A) Heat is being released to change the substance from a liquid to a gas
B) Heat is being absorbed to change the substance from a liquid to a gas
C) Heat is being released to change the substance from a gas to a liquid
Answer:
B
Explanation:
All endothermic reactions need added energy and the phase is going from liquid to gas.
Describe the connection between glycerol, fatty acids and triglycerides.
Cause-effect relationship
1.Water cycle and Air temperature
2.Habitad and Biodiversity
3.Water temperature and Ocean circulation
4.Greenhouse and Agricultural activities
Answer:
I m not sure how to make this work for you husband and my husband and my wife and
Natasha is making a model of cellular respiration. Her model shows the pathway followed when there is enough oxygen available. What does Natasha’s model show?
A
an aerobic pathway consisting of glycolysis and fermentation
B
an anaerobic pathway consisting of glycolysis and fermentation
C
an aerobic pathway consisting of glycolysis, the Krebs cycle, and the electron transport chain
D
an anaerobic pathway consisting of glycolysis, the Krebs cycle, and the electron transport chain
Answer:
An aerobic pathway consisting of glycolysis, the Krebs cycle, and the electron transport chain
Explanation:
It's aerobic because there is oxygen available while if it were anaerobic, no oxygen would be present.
Hope it helps :)
Natasha is making a model of cellular respiration. Her model shows the pathway followed when there is enough oxygen available, so her model shows it is an aerobic pathway consisting of glycolysis, the Krebs cycle, and the electron transport chain, which is option C.
What is the significance of respiration in living beings?Cellular respiration is either carried out when there is an abundance of oxygen, called "aerobic respiration," when there is enough oxygen present to lead to the running of the glycolysis, Krebs cycle, and electron transport chain to form energy, which is in a normal condition of a cell. while fermentation takes place when oxygen is not enough.
Hence, Natasha is making a model of cellular respiration. Her model shows the pathway followed when there is enough oxygen available, so her model shows it is an aerobic pathway consisting of glycolysis, the Krebs cycle, and the electron transport chain, which is option C.
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Inheritable genetic variations may result from____
mutations caused by factors in you environment
mitosis may cause new genetic combinations
replication errors
Answer:
Inheritable genetic variations may result from mutations caused by environmental factors
Explanation:
Because mutations are caused by environmental factors.
G1 – growth phase: Makes organelles and proteins needed for replication of DNA. Also contains a G1 checkpoint. If everything is correct, cell will proceed to S phase.
Answer:
correct.
Explanation:
cell will proceed to S phase for the duplication of chromosomes.
name the blood vessels that convey blood to the forelimbs
Answer:Oxygenated blood leaving the heart flows into the aorta, one of its earliest branches is the subclavian artery which supplies blood to the forelimb, neck and cervicothoracic junction.
Explanation:
Evidence of past climate conditions is best reviewed by studying...
•deep sea sediments
•metal sulfides
•mid-ocean ridges
•modern ocean chemistry
Answer:
deep sea sediments
Explanation:
it seems more relevant but don't take my word for it double check your self
Answer:
Deep Sea sediments
Explanation:
may influence ocean conditions around the vast continent as well as climate change
Can humans be considered carbon sinks? If so, for how long? What living organisms are better long-term sinks than humans?
Answer:
Carbon sinks can be natural or man-made. They absorb more carbon than they release, whereas carbon source is anything that releases more carbon than they absorb. ... Together Earth's land and Ocean sinks absorb half of the carbon dioxide emissions.
Explanation:
Humans can be considered carbon sinks - yes, for a lifetime.
living organisms are better long-term sinks than humans - plants or trees.
Carbon sinkanything that absorbs more carbon from the atmosphere than it releasesit is the opposite of a carbon source as a carbon source is anything that releases more carbon than it absorbsHumans release carbon mainly by respiration, however, absorbs very less amount as foodPlants grab carbon dioxide from the atmosphere to use in photosynthesis and only some of this carbon is released to the soil when plants die and decomposeLearn more:
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what must animals do for celluar respiraton to begin
Answer:
the animal will consume food and inhale oxygen and drink water. the cell will use the oxygen and water to break down the glucose to form energy or ATP
HELPPPPP
What are the 3 ways we can describe a habitat?
3 SENTENCESSSSS
Explain in detail how changes in light intensity or carbon dioxide levels might change rates of photosynthesis.
A manufacturing factory is accused of emitting high levels of CO2 into the ecosystem. The factory burns coal to heat steel
drums. The factory uses lake water to cool the drums. The water is poured over the drums and then emptied back into the
lake
Scientist A claims the factory is responsible. The burning of coal releases excess CO2 into the atmosphere. This excess CO2 is
transferred to all areas. The CO2 is not lost throughout the system.
Scientist B clams the factory is not responsible. The CO2 is released directly into the atmosphere, not into the lake. The CO2 is
lost into the upper layers of the atmosphere and not cycled back into the ecosystem
The model represents the cycle of carbon in the atmosphere. Which key issue illustrated in the model would best support Scientist
A's claim?
A)
The model shows a factory creating excess levels of CO2
B)
The model depicts a continuous cycle. An increased level in one area will
increase levels throughout.
The model depicts multiple cycles. The atmospheric cycle would show an
increased level of CO2
The model shows high levels of carbon in the lake. Any change to this level
will have a greater impact on the atmosphere.
D)
The key issue that must be illustrated in the model and best support Scientist A claim is as follows:
The model depicts multiple cycles. The atmospheric cycle would show an increased level of CO2.Thus, the correct option is C.
What is an Ecosystem?An ecosystem may be defined as a place or an area in which individuals of different species live together and interacts with one another for the purpose of food, shelter, and space.
According to Scientist A, the factory is responsible for the excess level of carbon dioxide in the atmosphere. This is absolutely true because the factory burns coal that liberated a high amount of CO2 into the environment.
Apart from this, the factory uses lake water to cool the drums. The water is poured over the drums and then emptied back into the lake. This increases the concentration of CO2 in the lake as well.
Therefore, the correct option for this question is C.
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Which surface erosion event does the most short- term damage?
Loss of topsoil from farmland.
Movement of rocks by glaciers.
Occurrence of mud slides after heavy rains.
Pollution of water sources caused by runoff.
Answer:
Occurrence of mud slides after heavy rains.
Explanation:
Soil erosion is defined as the removal of top soil from the land and it affects the fertility of the soil. It is also known as soil degradation.
Soil erosion has both short-term and long-term damage. Short-term damage of erosion includes the occurrence of mudslides after heavy rains which is called landslide. It is a short-term damage because landslides took long-duration to happen and when happened it can be shortly recovered using machines.
Hence, the correct answer is "the Occurrence of mudslides after heavy rains."
How many genes make up the human genome?
four: adenine, thymine, guanine, and cytosine
23 pairs of genes
20,000–25,000 genes
3 billion genes
Answer:
The correct answer is - 20000, 25,000 genes.
Explanation:
Genes are made by the functional and physical unit of the heredity called DNA. Genes are the precursors or encoded instructions to make a specific protein. Genes can be small or large depending on the DNA bases present in it which can be hundreds to millions in numbers.
According to the Human Genome Project, which found out the total genes present in a human genome between 20000 to 250000 genes approximately.
Thus, the correct answer is - 20000, 25,000 genes.
Genes are the hereditary units, which are present in the coded segments of the DNA. Genes carry the information from parent to daughter cells.
There are 20,000 to 25,000 genes that make up the human genome.
Human Genome Project was conducted for several years, the result obtained was:
The human genome project was an international scientific project, which aimed at determining the base pairs that make up the human DNA.The project estimated that humans consist of 20,000 to 25,000 genes in their genome. Each individual inherits the copies of genes from both parents.Therefore, the correct answer is Option C.
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How does the Gulf Stream affect weather in the United States? A. It brings cooler temperatures from the poles. B. It brings cooler temperatures from the tropics. C. The warm surface currents help create storms and fog. D. The cool surface currents produce cooler weather and fog.
Answer: C. The warm surface currents help create storms and fog.
Explanation:
The gulf stream can be defined as strong ocean currents that brings about the warm wind currents from the oceanic water of the gulf of Mexico to the eastern coastal areas of the United States. These wind currents bring warm weather conditions in the United States. The strong wind currents can also cause storms and fog in the coastal areas of the United States.
NEED HELP ASAP!! due at 11:59
What is the temperature structure of the troposphere? What percent of the atmosphere is in the troposphere in height? In mass?
help!!!
Answer:
The tropospheric temperature only decreases from an average of 0°C (32°F) at sea level to about −45°C (−49°F) at the tropopause. At the equator, tropospheric temperatures decrease from an average of 20°C (68°F) at sea level to about −70°C to −75°C (−94 to −103°F) at the tropopause.
Which best describes the permeability of a membrane?
O A. The total thickness of the membrane
B. The flexibility of the membrane
C. The number of molecules in the membrane
D. The ability to allow materials to cross a membrane
Answer:
D
Explanation:
D. is correct because the membrane works like a security guard and only allows certain materails to cross the membrane. The definition of permeability is the state or quality that allows something to pass through.
Permeability is a standard of easy motion of liquid and gases through a membrane or material. They allow the transportation and exchange of gases in a cell.
The statement that best describes the permeability of a membrane is:
Option D. The ability to allow materials to cross a membrane.
This can be explained as:
Permeability is a physical property of membranes and substances that allows the other molecules to move through them.It acts as a barrier from substances entering and exiting the cell or membrane and maintains the balance in a system.Therefore, permeability is the allowance of materials across the membrane.
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Scientists core a Redwood tree in the California Redwood forest. The core of this particular tree has 1115 rings. How old is the tree in years?
Answer:
1115 years.
Explanation:
One ring equak one cycle year.
WILL GIVE BRAINLEIST FOR FIRST ANSWER
Answer:
1. A scientific law is a law is a statement based on experiments that states the facts that follow with a specific occurence
2. The theory of evolution is that life constantly changes over time. Animals and living organisms of all sorts evolve and adapt to survive.
3. I can't seeeee
Explanation:
Answer:
Scientific laws are laws that are based off of experiments or observations
Theory of evolution are based off of the idea of all species are related and graduated over time.
Explanation:
replicate t a c g c c c a t g a g a t c
Answer:
Youuuhh seeeeee im jist answering for points oooof
Explanation:
What is the identity of the planets?
Answer:
A is Jupiter, B is Neptune, C is Saturn, D is Uranus
Explanation:
where do cells store waste
Answer:
Vacuoles
Explanation:
Which would have most likely stopped Mendel from finding a pattern in his results?
O A. If seed shape did not have a clearly recessive form
B. If having a smooth seed had been a dominant trait
C. If having a wrinkled seed had been a recessive trait
D. If garden peas produced large numbers of offspring
Answer:
A. If seed shape did not have a clearly recessive form
Explanation:
To study inheritance patterns, Mendel studied a few characteristics of pea plant -e.g. pea colour, shape, plant height. These characteristics had to be very clear dominant and recessive forms to distinguish between, otherwise detecting the patterns would not have been obvious.
For example, if crossing a wrinkled seed plant with a smooth seed plant made a semi-wrinkled plant, Mendel would not have been able to study the inheritance of dominant and recessive traits.
Answer:
A. If seed shape did not have a clearly recessive form.
Explanation:
ASAP PLEASE
How are photosynthesis and cellular respiration related?
Group of answer choices
The products of photosynthesis are the reactants of cellular respiration.
The reactants of photosynthesis are the reactants of cellular respiration.
The reactants of photosynthesis are the reactants of cellular respiration.
The products of photosynthesis are the products of cellular respiration.
Answer:
The answer is The products of cellular respiration are the same as the reactants of photosynthesis.
Explanation:
because they have the same reactants
How does knowing the function of the lobes help health workers determine which lobes are
Affected
Answer:
They can use sound to see which ones do not react properly
Explanation:
(7th grade question)
Which are the causes of rocks being exposed at Earth’s surface?
A- erosion and subduction
B- extreme heat and pressure
C- melting and cooling
D- erosion and uplift
Answer:
A. erosion and subduction
Explanation:
plz give me brainiest
Answer:
Erosion and uplift
Explanation: I took the test and got it all right erosion and subduction is NOT the answer.