Answer:
A "chain reaction" is a reaction that promotes or spreads the reaction. PCR rapidly makes a bunch of copies of a specific DNA sample and can "promote" the increase the amount of DNA.
Explanation:
Yeast cells, plant cells, and mammal cells all share many similarities in cell signaling. This provides evidence that:________
a. cell-signaling mechanisms are only found in organisms that use methods of sexual reproduction
b. intercellular communication evolved as a way for multicellular organisms to coordinate cell functions
c. eukaryotic cells use signal transduction pathways while prokaryotic cells use a more primitive form of signaling
d. signal transduction pathways appeared in cells before the evolution of multicellular organisms
Answer:
D
Explanation:
Yeast cells, plant cells, and mammal cells all share many similarities in cell signaling. This provides evidence that signal transduction pathways appeared in cells before the evolution of multicellular organisms. Thus, the correct option for this question is D.
What is cell signaling?Cell signaling may be defined as a process through which a cell of an organism may respond to substances outside the cell through signaling molecules found on the surface of and inside the cell.
This biological process of cell signaling is ultimately required in order to accomplish all sorts of metabolic activities that are essential for the survival of living organisms, no matter whether they are prokaryotic or eukaryotic, unicellular or multicellular.
Therefore, the correct option for this question is D.
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Plzz help 10 points!!!!!
Answer:
Here is your answer .
Option B Flower color is a dominant trait.
Hope it helps you . :---)
Explanation:
If Correct mark me as brainliest
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Which part of the virus houses the nucleic acid?
Answer: nucleic acid in a virus is enclosed in a capsid.
Explanation: Capsids are made up of protein subunits called protomeres. some viruses have a membrane also known as an envelope that surrounds the capsid and some do not.
Answer:
Capsid
Explanation:
Capsid - The capsid is the protein shell that encloses the nucleic acid; with its enclosed nucleic acid, it is called the nucleocapsid. This shell is composed of protein organized in subunits known as capsomers.
Give the equivalent measurement of the materials given below.
equivalent
sample materials (unit)
1. 1 cup nuts meaurement
2. 4 table spoon sugar
2. 5 whole eggs
4. 1 gallon ice cream
5. 2 bars butter
6, 3 lbs. dried nuts
7. 5 big cans of evaporated milk
8. 1 teaspoon sugar
9. 16 tablespoon salt
10. 5 cups flour
Answer:
1 cup nuts measurement =300grams
Explanation:
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what happens to sound underwater
Answer:
if you put your head under the water, the sound becomes much louder. You also feel more of a sound when you're underwater. Above the surface, the sound waves only vibrate your eardrum (unless the sound is very loud).
Do all living things obtain the matter and energy they need to live and grow in the same way?
Answer:
Explanation:
This means all living organisms must obtain and use energy to live. Energy is the power to do things. ... A living organism can either make its food or depend on others to make food for them. For example, green plants produce their food from a process called photosynthesis.
Living things obtain energy and food to grow but different organisms do in different ways plants depend on the sun for photosynthesis.
How do living things obtain energy?Every living thing has a unique method of getting nutrients. Protozoans and other animals are among the creatures that obtain nutrition by eating food. Through the process of photosynthesis, plants and algae produce their own sustenance.
Animals consume food and drink to get the substance and energy they require for their biological activities.
A producer is an organism that produces its own nourishment. Sugars, a source of both energy and substance, are produced by plants using the energy from sunshine.
Therefore Plants are one type of creature that can produce its own food, to obtain energy.
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What role do chromosomes play in genetic inheritance
Answer:
Each gene occupies a specific position on a chromosome. Because genes provide instructions for making proteins, and proteins determine the structure and function of each cell in the body, it follows that genes are responsible for all the characteristics you inherit. ... These pair up to make a total of 46 chromosomes.
Select all that apply.
Proteins
contain carbon hydrogen, oxygen, and nitrogen.
consist of amino acids
are derived from fruits and vegetables
are part of antibodies
Answer:
contain carbon, hydrogen, oxygen, and nitrogen. consist of amino acids are part of antibodiesExplanation:
Proteins are long-chain macromolecules made up of amino acid monomers. Amino acids are organic compounds with an amine and carbonyl group. They contain Carbon, Hydrogen, and Oxygen, along with Nitrogen as their basic elements. They are often found in meat, fish, dairy and legumes.
In the body, proteins are important immunomodulation and the immune response. The body produces antibodies (Ab) or immunoglobulin (Ig) to help neutralize or tag foreign invaders by binding to specific antigens on the pathogen's surface.
Answer:
contain carbon, hydrogen, oxygen, and nitrogen.
consist of amino acids
are part of antibodies
Explanation:
Which molecules provide the elements for creating stored chemical energy for the cell?
Answer:
Energy-rich molecules- Glycogen, carbohydrates, triglycerides, and lipids are energy storage molecules. These molecules store energy in the form of covalent bonds.
Electrochemical potential- This type of energy storage is more active and readily used by cells.
Hope this helps!
Explanation:
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How are bacteria, a rose, and an elephant alike?
Explain why the ratio of motor neurons to muscle fibers is greater in muscles that control eye movement than in postural muscles of the leg.
Answer:
The muscles of the eye cover a greater number and in turn carry out greater fine motor skills.
Explanation:
Alpha motor neurons are neurons that invent the skeletal muscle, that is, striated, so that through the motor plate that is the unit that unites them, an action potential is transmitted that contracts the sarcomeros of the elastic fibers and the z lines. come closer, each eye movement is much more precise than the locomotion of the lower limb, which carries greater innervation in each muscle bundle due to the specificity of the movement, this is how more alpha motor neurons are required to mobilize the eye than a leg.
The specificity and preciseness of eye movement control justifies why the ratio of motor neurons to muscle fibers is greater for muscles controlling eye movement than those in the postural muscles of our leg.
The function the eyes performs requires more precise locomotion control than the movement of the limbs require.
For an eye movement to be made, an action potential must be transmitted which makes the sarcomeres of the elastic fibers and z-lines to unit thereby producing movement of the eye. This movement are usually done with almost perfect preciseness.
This is why there are more alpha motor neurons that control eye movement than we have in postural muscles of the leg.
In summary, the specificity and preciseness of eye movement control justifies why the ratio of motor neurons to muscle fibers is greater for muscles controlling eye movement than those in the postural muscles of our leg.
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what is the function of the Articular cartilage.
Answer:
Articular cartilage is a thin layer of specialized connective tissue with unique viscoelastic properties. Its principal function is to provide a smooth, lubricated surface for low friction articulation and to facilitate the transmission of loads to the underlying subchondral bone.
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SUPER EASY BRAINLYIEST Buffer systems in the body maintain proper pH balance in order for life processes to proceed. Proteins found in the blood plasma are often used as buffers.
What makes a protein able to function as a buffer?
A.The protein’s molecular shape must enable it to bind with other proteins in the plasma.
B.The protein must be capable of both accepting and releasing protons.
C.The protein must maintain its ability to release various amino acids, thus changing its molecular shape.
D.The protein must take on a conformation change according to the activity of the associated enzyme in regulating the blood’s pH.
If the amount of oxygen improved by a plant or measure of a 24 hour. When would you expect the greatest not a function to be produced
Answer:
After 6 hours
Explanation:
Functions in oxygen begin to decrease after 6 hours
what's the opposite of 0.5
Describe how positive control in prokaryotes can be altered by the external environment
Answer:
The positive control is control when there is an activator present which acts as a regulatory protein so the operon and activator binds and initiates the stimulation of transcription to express the gene. In absence of this activator or regulatory protein, the operon will be inactivated.
External environmental stimuli can lead to alteration of the positive control in prokaryotes such as excess lactose in the environment. These environmental stimuli can induce transcription in prokaryotes.
In this example, if glucose is not available in the environment, the transcription of the lac operon will be induced by the presence of lactose in the environment.
When Pedro spent a year in the United States as an exchange student, he found that at first he seemed to make a lot
of mistakes in the way that he dealt with people,
could explain why his classmates didn't understand why
he stood so close to people when he spoke to them.
А. A difference in the cultural display rules
В. Their indifference toward Pedro
С Petro's exposure to Western culture
D The school's lack of social activities
Answer:
The correct answer is - option A. A difference in the cultural display rules.
Explanation:
Social or cultural displays rules are a social cluster or group and informal cultural norms to express their emotions in the correct way which are specific to cultural or social groups.
Pedro is an exchange student which makes his social norms different than the social norms or cultural display rules which cause difficulties to deal with the people and classmates.
Answer:
A
Explanation:
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Describe the anatomy of the typical long bone
Answer: HERE'S YOUR ANSWER!!!
Explanation:
Long bones are those that are longer than they are wide. The end of the long bone is the epiphysis and the shaft is the diaphysis. When human finishes growing these parts fuse together. The outside of the flat bone consists of a layer of connective tissue called the periosteum
Calculate the mass of 2.8 moles of chlorous acid (HCIO). Explain the process or show your work by including all values used to determine the
answer.
Answer:
147g
Explanation:
The number of moles or mass a substance contains can be calculated using the formula:
Mole (mol) = Mass (g) /Molar mass (g/mol)
Based on the provided information in this question,
mole = 2.8moles, mass =?
Molar Mass of HClO
Where; H =1, Cl=35.5, O=16
1 + 35.5 + 16
= 52.5g/mol
Using mole= mass/MM
mass = mole × MM
mass = 2.8 × 52.5
mass = 147g
147g of chlorous acid (HClO)
Vhich is an issue that governments must consider before passing conservation policies?
urbanization implications cost to implement conservation policies desertification implications cost to implement deforestation.
A 24 fluid ounces is equivalent to ___ pounds
Answer:
1.50
Explanation:
What is not a characteristic of cell differentiation
A) stable phenomenon
B) unstable phenomenon
C) controlled by genetic factors
D) precedes morphological difference
Answer:
B) unstable phenomenon
Explanation:
What is the answer please help yall
Answer:
That's correct im pretty sure
Explanation:
Because you are adding a nucleotide which is a frameshift mutation.
Answer:
A. Insertion- Frameshift
Explanation:
A frameshift was produced because an extra DNA base was inserted into the mutated strand, as you can see in codon three. No bases were deleted. Therefore, your answer is correct.
What kind of change results from the breakdown of starch into glucose by saliva? Physical or chemical ?
Answer:
Yes im doing the science final
The change results from the breakdown of starch into glucose by saliva is chemical change.
What is chemical change?When bonds between molecules or atoms are created, disrupted, or both, chemical changes result.
In other words, a substance with one set of qualities gets changed into another substance with a different set of attributes.
Chemical decomposition is the term used to describe the subsequent chemical change as more products are produced as a result of this process.
When two materials interact to form a new substance, chemical synthesis—or, conversely, chemical breakdown into two or more independent molecules—occurs.
The starch gradually transforms into sugar when saliva is supplied because saliva contains the enzyme amylase, which helps break down starch.
Starch is a polysaccharide made up of many units of glucose. Amylase breaks down starch to produce a disaccharide called maltose.
Thus, the given one is the example of chemical change.
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Fish, their predators and the water, sunlight, and plants that they rely on
would be considered an?
Answer:
Ecosystem
Explanation:
An ecosystem refers to all the abiotic and biotic factors in an area and their interactions.
The biotic factors include all the living organisms (the fish, their predators, and the plants).
The abiotic factors are the physical, non-living components, including the water and sunlight.
The relationships between all these factors creates the ecosystem.
Which three plates touch the south American plate
Answer: South American plate is bounded by African plate in the east, Nazca plate in the west, Antarctic plate and Scotia plate in the south, and Caribbean plate and North American plate in the north.
Explanation:
Answer:
African plate, North American plate, and antarctic plate
Explanation:
Which fat is most likely a solid at room temperature?
A.one that is saturated
B.one that is unsaturated
C.one with double bonds
D.one that contains no hydrogen
Answer:
one that is saturated
Explanation:
Unsaturated fat turns to liquid at room temperature. Saturated fat has do not have double bonds in their molecular structure.
What is a control group? Give an example.
Why are the bones and muscles of the legs so much larger than the upper extremities?