Answer:
1. an electrical nerve impulse sent by nerve fibers to the central nervous system for interpretation. Action potential.
2. neurons that detect chemicals such as those found in food. Chemoreceptors.
3. type of eyes many arthropods have; eyes that protrude outward and consist of many lenses. Compound eyes.
4. the structure that gives the response to an environmental change. Effector
5. neurons that detect electrical fields. Electroreceptors.
6. secretion of hormones into the blood stream to affect distant processes. Endocrine.
Explanation:
An action potential is a change in the internal charge of a cell due to depolarization. These changes allow the transmission of a message from any part of the body to the central nervous system. The central nervous system will interpret the message and will give a response.
There are different types of receptors in our bodies. Chemoreceptors are the ones that detect chemicals and produce an action potential or a neurotransmitter. These receptors respond to chemicals. Another type of receptor is the electroreceptors. They detect electrical fields and are only on the skin of aquatic animals.
Compound eyes have a large number of ommatidia. As a result, the anthropods with this type of eyes have a large view angle. In other words, every ommatidium sees an image, and the final product is a combination of all of them.
The effector is the structure that gives an answer once an affector has sent the message to the nervous system that there was a change in the environment.
There are different kinds of secretions, autocrine, paracrine, and endocrine. In the endocrine secretion, the gland secrets hormones into the bloodstream so that they can travel long distances up to their target cell, which is far from the gland.
1. an electrical nerve impulse sent by nerve fibers to the central nervous system for interpretation. Action potential
2. neurons that detect chemicals such as those found in food. Chemoreceptors
3. type of eyes many arthropods have; eyes that protrude outward and consist of many lenses. Compound eyes
4. the structure that gives the response to an environmental change. Effector
5. neurons that detect electrical fields. Electroreceptors
6. secretion of hormones into the blood stream to affect distant processes. Endocrine
The nucleotide sequence of a strand of DNA TAC -CGG-AGTWhat the amino acid sequence of the resulting protein ?
The amino acid sequence would be "Met-Ala-Ser."
What is a nucleotide sequence?A nucleotide sequence is a linear arrangement of nucleotides, the building blocks of nucleic acids such as DNA and RNA. Nucleotides are composed of a nitrogenous base, a sugar molecule, and a phosphate group. There are four different nitrogenous bases in DNA: adenine (A), cytosine (C), guanine (G), and thymine (T). In RNA, thymine is replaced by uracil (U).
The specific order of these nitrogenous bases in a DNA or RNA molecule encodes genetic information, which is used by cells to carry out various functions such as protein synthesis. The nucleotide sequence determines the structure and function of a nucleic acid molecule and plays a crucial role in the processes of heredity and evolution. The study of nucleotide sequences and their function is a central part of the field of molecular biology and genomics.
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What is one reason a cell would need to divide?
Answer:
Why Do Cells Need to Divide. Organisms, either unicellular or multicellular, are made up of cells. One of the characteristic features of cells is the division. Cells divide for many reasons, including growth, repair and regeneration, and reproduction. The two types of mechanisms of cell division are mitosis and meiosis.
Explanation:
plz help it is really important
Answer:
answer one: during the day the sun's energy heats up land faster which makes the air above warmer
Explanation:
hope this helps!
Which option describes a mass extinction?
А.
a large meteorite hits the Earth; many species rapidly disappear from the fossil record
B. the amount of sunlight on Earth Increases; organisms of a single species increase in number
C. glaciers cover the Earth; many species rapidly increase in number and take over
D
a small volcano explodes; organisms of a single species disappear
Scientific developments have made forensic science a stronger discipline.
True
False
Answer:
Answer of this qurstion is true
As the moon's shape appears to get smaller, we say that the moon is _. *
A.swelling
B.waxing
C.waning
D.disappearing
Answer:
waning
Explanation:
i think, don't quote me on that
What are some skills that scientists must have to be successful?
Answer:
they have to be smart
Explanation:
...........
Answer:
They need to be creative, logical, analytical, and good at communication.
Explanation:
hope this helps!
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Frost forming on grass in the morning
PHYSICAL OR CHEMICAL CHANGE
Answer:
Physical
Explanation:
A physical change can be undone. A chemical change cannot. The frost on the grass will melt, therefore it can be undone.
Answer:
The answer should be physical change.
Explanation:
If not then im very sorry but I did learn this so I am pretty sure it is physical change.
Which choice is involved in both sexual and asexual reproduction
What is the shape of DNA?
Answer:
hey friend..... here is your answer....
the shape of DNA is double helix
Which of the following organs are involved with chemical digestion?Which of the following organs are involved with chemical digestion?
mouth, pancreas, stomach, small intestine
stomach, pancreas, pituitary, large intestine
esophagus, liver, small intestine, large intestine
small intestine, gall bladder, kidneys, mouth
Answer: Chemical Digestion = mouth, pancreas, stomach, small intestine
Explanation: Hope this helps!
Answer:
Chemical Digestion = mouth, pancreas, stomach, small intestine
Explanation:
How does the structure of DNA allow the right protein to be made?
Answer: Structure of DNA: double-stranded helix held by complementary base pairs. DNA carries the genetic information for making proteins. The four bases A, T, C and G make up the genetic code. The base sequence determines amino acid sequence in protein.
Explanation:
Which phyla have well developed nervous system
Answer:
Cnidarians.......hope it helps
What was the purpose of the Multiple Use Sustainable Yield Act?
To create standard expectations for various types of land use
To require companies to find several uses for any land they occupy
To designate any land that is home to endangered species as protected
To make sure that all aspects of a land’s use are considered in its management
Answer:
On June 12, 1960, Congress passed the Multiple Use-Sustained Yield Act, designed to prevent the obliteration of national forests by logging and water reclamation projects.
Explanation:
28. Eubacteria can be distinguished from archaebacteria by
a.The presence of a true nucleus
b. Being multicellular
Difference in the makeup of cell wall
d. The presence of organelles
Answer: D
Explanation:
i am sorry if this is wrong
The building blocks of DNA are
Answer:
nucleotides
Explanation:
made of three parts , phosphate group, sugar group and one of four nitrogen bases
Answer:
Chromosomes
Explanation:
The chromosomes from both parents from the DNA of the offspring
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1. A biologist was in a forest when he came across a family of squirrels hiding nuts for the winter. The biologist was interested in this behavior, so he stayed and watched the squirrels for a few hours. He recorded what he observed in a notebook. Which of the following explains why this type of research is NOT considered an experiment?
A. The biologist observed the squirrels and did not test variables.
B. The biologist came across the squirrels by chance and had no formal plan.
C. The biologist did not observe the squirrels for long enough to collect data.
D. The biologist did not collect valid data on the different species of squirrels present.
2. For pea plants, T represents a dominant allele for tall pea plants and t is the recessive allele for short pea plants. If two plants with the Tt genotype are crossed, what is the probability that offspring will exhibit the dominant trait?
A. 75%
B. 100%
C. 25%
D. 50%
3. Which statement is true about DNA?
A. DNA is an exact copy from parent to offspring
B. DNA contains genes that hold specific traits for an organism
C. DNA is not necessary for an organism to reproduce
D. Organisms create their own DNA sequence that is not like their parents
The biologist observed the squirrels and did not test variables. If two plants with the Tt genotype are crossed, 50% is the probability that offspring will exhibit the dominant trait. The correct options are A, D, and B respectively.
What is genetics?The study of genes, genetic variation, and heredity in organisms is known as genetics. It is an important branch of biology because heredity is essential to the evolution of organisms.
An experiment entails manipulating variables to see how they affect a dependent variable. In this case, the biologist observed and recorded what he saw rather than manipulating any variables.
Both plants in this scenario are heterozygous (Tt) for the tall trait, which means they each have one dominant allele (T) and one recessive allele (R) (t).
When they are crossed, each offspring has a 50% chance of inheriting the dominant T allele and displaying the dominant trait of tallness, as well as a 50% chance of inheriting the recessive T allele and displaying the recessive trait of shortness.
DNA (deoxyribonucleic acid) is a molecule that contains the genetic instructions for the development, function, growth, and reproduction of all living organisms.
Thus, the correct options are A, D, and B respectively.
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What is one of the major advantages of using the five-kingdom system of classification?
Group of answer choices
The metabolic similarities between the members of a phylum become apparent.
The characteristic behaviors of all organisms become apparent.
The evolutionary relationships between organisms become apparent.
The biochemical similarities between the kingdoms become apparent.
1. Explain why the greenhouse effect is necessary but how an enhanced greenhouse effect can harm the planet.
2. Define global warming and explain what has caused the recent trend of warming that the earth is experiencing.
3. Explain why Earth's temperature is directly affected by the amount of greenhouse gases in the atmosphere.
4. Define carbon sequestration and explain how deep geologic burial of carbon works.
5 Describe the connection between fossil fuel burning, the melting of polar ice, and the rising of global sea levels.
Answer:
1. The enhanced greenhouse effect disrupts the Earth's climate equilibrium and has led to an increase in the global average surface temperatures.
2. Scientists attribute the global warming trend observed since the mid-20th century to the human expansion of the "greenhouse effect" 1 — warming that results when the atmosphere traps heat radiating from Earth toward space. Certain gases in the atmosphere block heat from escaping.
3. Greenhouse gases absorb some of the energy and trap it in the lower atmosphere. Less heat radiates into space, and Earth is warmer. ... Carbon dioxide, methane, water vapor, and nitrous oxide are naturally present in Earth's atmosphere.
4. Carbon sequestration is the process of capturing and storing atmospheric carbon dioxide. It is one method of reducing the amount of carbon dioxide in the atmosphere with the goal of reducing global climate change.
5. As climate change caused by burning fossil fuels drives temperatures higher, the ocean warms, causing it to expand. ... Scientists have found that water draining from melting glaciers and ice sheets in polar and mountain regions is now also contributing to this rise in sea levels.
Answer: 1. Necessary because it keeps heat in and keeps the planet at the right temperature for life.
It can harm the planet if more pollution occurs and the greenhouse gas effect traps too much heat and causes global warming. 2. Scientists attribute the global warming trend observed since the mid-20th century to the human expansion of the "greenhouse effect"1 — warming that results Greenhouse gases let the sun's light shine onto the Earth's surface, but they trap the heat that reflects back up into the atmosphere. In this way, they act like the insulating glass walls of a greenhouse. The greenhouse effect keeps Earth's climate comfortable when the atmosphere traps heat radiating from Earth toward space. Certain gases in the atmosphere block heat from escaping. 3. Human activities contribute to global warming by increasing the greenhouse effect. ... Greenhouse gases let the sun's light shine onto the Earth's surface, but they trap the heat that reflects back up into the atmosphere. In this way, they act like the insulating glass walls of a greenhouse. 4. Carbon sequestration is the process of capturing and storing atmospheric carbon dioxide. It is one method of reducing the amount of carbon dioxide in the atmosphere with the goal of reducing global climate change. Geologic carbon sequestration is the process of storing carbon dioxide (CO2) in underground geologic formations. The CO2 is usually pressurized until it becomes a liquid, and then it is injected into porous rock formations in geologic basins. 5. As climate change caused by burning fossil fuels drives temperatures higher, the ocean warms, causing it to expand. This expansion in turn causes sea levels to rise. ... There is now so much warming baked in to the global climate system that sea levels will continue to rise for centuries.
Explanation:
1. Which equation best represents the dissociation of water molecules into hydrogen ions and hydroxide ions?
A student reads that Cnidarians have two layers of tissue during development.
Which answer describes a possible tissue layer?
A)deuterostome
B)ectoderm
C)radial
D)pseudocoelom
Answer:
it is ectoderm
Explanation:
This shows cardiac muscle. This type of muscle is *
Answer:
Involuntary
Explanation:
Hope that helps ;)
Answer:
Involuntary
Explanation:
Cardiac muscle is also an involuntary muscle, found only in the heart. The cardiac muscle fibers all contract together, generating enough force to push blood throughout the body.
How does the structure of DNA allow copies to be made?
Answer:
It's a double helix that can be unzipped, copied, and then replicated
Why are flowers so important to a plant?
Answer: Flowers help purify water and also helps hold the soil in place and prevent erosion.
CREDIT: fed.us
Answer:
The primary purpose of a flower is reproduction. Since the flowers are the reproductive organs of plant, they mediate the joining of the sperm, contained within pollen, to the ovules — contained in the ovary. Pollination is the movement of pollen from the anthers to the stigma.
Explanation:
Which type of greenhouse gases have a human source?
nitrous oxide
water vapor
fluorinated
gases
O carbon dioxide
Answer:
carbon dioxide is correct
Answer: O Carbon dioxide
Explanation:
The diagram shows the same type of molecules in area A and area B.
With the passage of time, some molecules move from area A to area B. This movement is the result ot the process of
1. phagocytosis
2. pinocytosis
3. diffusion
4. cyclosis
Answer:
3. diffusion, because molecules are moving from a high concentration(A) to a low concentration(B)
Diffusion is the net flow of matter from a location of high concentration to a region of low concentration as a result of the random mobility of molecules. Both stopping and reversing this process are not possible. Thus, option C is correct.
What are the main mechanism in diffusion process?The molecules' kinetic energy causes random motion, which causes diffusion. This mechanism happens in simple diffusion without the help of a carrier protein.
The molecules travel from an area of high concentration to an area of low concentration due to their random mobility.
Chemicals flow across the plasma membrane from areas of high concentration to areas of low concentration in cells to maintain an equilibrium (balance) of internal substances.
This implies that if there are more items inside the cell than outside, they will go outside and vice versa. It happens when the medium around the cell contains more water than the cell itself.
Therefore, This movement is the result of the process of diffusion.
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How do we know that food isn't causing the population growth?
How does agriculture affect coral reef 5- 6 sentences .
Answer:
Agriculture negatively impacts coral reefs. Chemicals used by farmers, such as pesticides and fertilizers, runs off the land when it rains.
Coastal waters suffer from huge amounts of a variety of agricultural and industrial chemicals that are released into them. Fertilizers and pesticides used in agricul-tural development projects are discharged into the sea and might lead to coral reef destruction.
Answer:
Agriculture negatively impacts coral reefs. Chemicals used by farmers, such as pesticides and fertilizers, runs off the land when it rains.
When farming techniques harm the Great Barrier Reef. Sugar cane is the major agricultural crop grown within the Reef's catchments. ... Fertilisers are one of the major sources of nutrients entering the Reef. Fine sediments and the pesticides used on coastal floodplains also threaten water quality.
Explanation:
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Newyork is near 40 degrees N. What general direction is air moving in Newyork
Answer:
The air in New York moves to the north.
Explanation:
At a global level, it occurs unequal warming of the atmosphere, which depends on many factors and varies with latitude. These temperature differences occur because solar radiation reaches the earth differently at different latitudes degrees. The result is the formation of convective cells of atmospheric air circulation: Hardley cell, Ferrel cell, and Polar cell.
The term convective cell refers to air getting warm, expanding, getting less dense, and ascending. During ascension, it gets colder because of the change in high, contracting, becoming thicker. Finally, it descends.
In each hemisphere, warm air ascends at the equator and approximately at 60º latitude. Cold air descends at approximately 30º latitude and the poles. These air masses circulation generates superficial winds that blow toward the equator between 0º-30º, and toward the poles between 30º-60º lat.
Ferrel cell occurs between 30º and 60º latitude. At 30º lat, the cold air coming from the north in the tropopause meets the cold air coming from 0º, and both descend to lower altitudes due to its density and low temperature. When these air masses reach the ground, they diverge. One part goes to 0º lat, while the other part goes forward to the north. As it moves north, it gets warmer for being at lower altitudes. At 60º, this warm air coming from the 30º meets the polar air coming from 90º, and as it is warmer it ascends again. When it ascends to the tropopause, it is pushed by new air and moves to the south again. While doing so, it loses heat and becomes denser, descending again at 30º. And so the cycle starts all over again. New York is located at 40º latitude approximately, so air goes forward to the north pole near the ground, but at 60º it elevates again. New York is then affected by the Ferrel cell.
In the attached image you will find the three cells, circulating in different directions.
Identify the products of cellular respiration.
Answer:
Water and carbon (IV) oxide