Each cell only expresses a small portion of its genes at any given time. Not synthesizing unused proteins allows resources and energy to be conserved. This understanding best supports which of the following statements?
Cells randomly express different genes
Gene expression is a regulated process
Cells cannot express certain genes
Unexpressed genes are never useful

Answers

Answer 1

Answer:

(B)-Gene exspression is a regulated process

Explanation:

Its right I just took a test on it.


Related Questions

A large region that has a particular type of climate that effectively influences the types of plants and animals that inhabit each ecosystem is a(n) ___________________.

Answers

I think this is a biome

The equation total # of people in an area
(land) area in kmZor miZ) IS used to calculate
growth rate
b. population density
death rate
d
carrying capacity

Answers

Answer:

B: population density

Explanation:

edg '22

The equation total # of people in an area is used to calculate population density. Thus option B is correct.

What is population density?

Population density is defined as the proportion of a population's members per square meter or cubic meter on average.

It can also be defined as collections of individuals from the same species that coexist in a given area.

There are basically three types of population density.

Arithmetic densityPhysiological densityAgricultural density

The average person count per unit of area or volume can also be known as population density.

The factor that affect population density are

Birth rateDeath rateDispersion

Thus, the equation total # of people in an area is used to calculate population density. Thus option B is correct.

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What did you include in your response?

Photosynthesis occurs in plants.

Photosynthesis uses sunlight as a source of energy.

Photosynthesis converts light energy to chemical energy.

I included other information.

Answers

Photosynthesis occurs in plants

Answer:

Photosynthesis occurs in plants

Explanation:

I got this correct.

Which of the following statements BEST describes ASEXUAL reproduction?

Question 8 options:

A single-celled organism uses meiosis to create two identical copies of itself.


Two multi-celled organisms uses meiosis and fertilization to create a unique offspring.


Two multi-celled organisms use mitosis and fertilization to create a unique offspring.


A single-celled organism uses mitosis to create two identical copies of itself.

Answers

The statement “ A single-celled organism uses mitosis to create two identical copies of itself” best describes asexual reproduction

The statement which best describes the mode of asexual reproduction is that a single-celled organism uses mitosis to create two identical copies of itself. Thus, the correct option for this question is D.

What is Asexual reproduction?

Asexual reproduction may be characterized as a mode of reproduction in which a new offspring is produced by a single parent. This type of reproduction does not involve the fusion of gametes or a change in the number of chromosomes.

Asexual reproduction is homologous to the process of mitosis. This is because both of them involve the production of two identical daughter cells from a parental cell.

While meiosis produces four daughter cells which are genetically unique to the parent cells. It is the characteristic feature of sexual reproduction that is opposite to an asexual one.

Therefore, the correct option for this question is D.

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is biological control effective than chemical control of crop protection?

Answers

Answer:

No

Explanation:

There are different ways or methods of protecting crops from pest and disease infestation. Two of those ways as mentioned in this question are the chemical control and biological control. Biological control of crop protection involves the use of natural enemies of crop pests, which happens to be living or biotic organisms while chemical control entails the use of pesticides and herbicides to control crop pests and diseases.

Among these two methods, the chemical control is more effective because it yields instantaneous results and gets rid of pests and diseases faster. However, in terms of sustainability, the biological control method is more eco-friendly. Hence, based on this question, biological is not more effective than chemical control of crop protection.

Please list the order of organization within animals, beginning with the atom and ending with the organism. Describe each level of organization.

Answers

Answer:

Atom, molecule, cell, tissue, organ, organ system, and organism.

Explanation:

Atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism are the body's major organizational levels.

What are the levels of organization in animals?

Atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism are the major levels of organization that may be found in the body. These levels range in complexity from the simplest to the most sophisticated.

Cellular level is key. A cell is the smallest self-replicating unit of life. All cells share a few cells, despite differences in design and capacity. Cells contain nucleic acids (DNA and RNA), cytoplasm, and a lipid-based film. Cells have organelles in their cytoplasm that perform distinct functions.

Tissues are clusters of related cells that function together. Connective tissues provide organs shape and structure. Muscle cells contract to allow movement. Epithelial tissues cover organs, skin, and the stomach. Specialized cells in nervous tissue, the spinal cord, and the brain transform information using electrochemical impulses.

Organs are structures made of tissues that perform biological activities. Organs have tissues. Organs combine tissues to perform a certain purpose. Size and complexity of organs vary tremendously. Organs include the heart, lungs, and brain. The next level, organism level, is formed of different organs to maintain the body.

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What is the element or compound in the Phosphorus Cycle and why is it important to living things?

Answers

Answer:

Phosphorus is an essential nutrient for animals and plants. It plays a critical role in cell development and is a key component of molecules that store energy, such as ATP (adenosine triphosphate), DNA and lipids (fats and oils). Insufficient phosphorus in the soil can result in a decreased crop yield.

Explanation:

Answer:

Thus, phosphorous is crucial to living organisms because ATP is crucial. Phosphorus is also important because it makes up our DNA. Phosphate is part of the so-called ladder legs which Adenine, Thymine, Guanine, and Cytosine bind to see. It holds this same job in RNA.

Explanation:

Is lysine a monomer or polymer?

Answers

Answer: Lysine is a polymer I believe. Hope this helps.

In a certain plant, the allele for red flower color (R) is dominant over the allele for white flower color (r). A cross is performed between a plant with red flowers and a plant with white flowers. The offspring are 47 plants with red flowers and 51 plants with white flowers. What are the genotypes of the parent plants?

Answers

Answer:

Rr and rr

Explanation:

The genotypes of the parents would be heterozygous red (Rr) and true-breeding white (rr).

Since the allele for the red flower color (R) is dominant over that of the white flower color (r), for a cross to produce both red and white flower color plants, the red parent must be heterozygous (Rr) and the white parent true-breeding (rr).

       Rr    x    rr

   Rr    Rr    rr    rr

Rr = red

rr = white

If the red parents is true-breeding

        RR    x    rr

      Rr    Rr   Rr    Rr

All their offspring would be red without any white flower color.

Hence, the genotypes of the parent are Rr and rr.

As thermal energy is added to a substance, which of the following changes can be predicted?
O
Spacing between particles will decrease
Vibration of individual particles will increase
Temperature of the substance will decrease
The pressure of the air around the substance will increase

Answers

Answer:

Vibration of individual particle will increase

Explanation:

This is due to the fact that whenever any substance of matter is increased in temperature, the atoms begins to move away from each other. Take for instance an ice cube for example, when an ice cube (a solid) is heated it becomes water, (a liquid). Proving that when a substance is heated, no matter the density of the material, the individual particles, or atoms, begins to spread apart.

Plz help last question on my test

50.Which type of cell must be produced more frequently than the other types?

1)brain cells
2)red blood cells
3)muscle cells
4)liver cells
5)stomach lining cells

Answers

Answer:

muscle cell is produced fast

Answer:

2

Explanation:

red blood cells

hey when you are done with your test notify me we need to talk

As the zygote undergoes cleavage, the number of cells increases but the overall size of each cell gets smaller. By the time the zygote reaches the 16-cell stage, it is called a

Answers

Answer:

Morula.

Explanation:

A zygote is the product resulting from fertilization. During the journey of the zygote through the fallopian tubes, until its implantation in the uterus, it divides many times, thus going through different phases. From the 16 cells it is called a morula, this stage represents the set of cells from the division of the fertilized ovum, in the first stages of embryonic development. It represents an intermediate phase between the zygote and the blastocyst. The morula stage is characterized by the fact that the replicating cells are all the same size, and there is no differentiation of organs.

In the natural blank method, the natural physical, chemical, and biological processes in soil and water gradually break down pollutants.

what's blank?

Answers

Answer: Attenuation

Explanation: Natural attenuation: in this method, the natural physical, chemical, and biological processes in soil and water gradually break down contamination or pollutants into harmless components. It helps reduce contamination concentration and soil and water to acceptable levels. Examples of natural attenuation processes include

- dilution or dispersal of pollutants in moving water

- volatilization or reduction of pollutants into vapor

- absorption or attachment of balloons to soil or vegetation

These processes are accomplish naturally. Little or no human intervention is necessary.

Answer:

In the natural attenuation method, the natural physical, chemical, and biological processes in soil and water gradually break down pollutants.

Explanation:

Living things must be able to obtain and use material and energy to grow, develop and reproduce. What term in Biology is used to describe this characteristic of life

Answers

Answer:

homeostasis

Explanation:

Is duralumin a mineral, a rock, or neither?

Answers

Answer:

Duralumin is an aluminium alloy.

Explanation:

Duralumin is a kind of mineral.

What is Duralumin?

There isn't a single chemical composition for duralumin because it is an alloy of copper, magnesium, manganese, as well as aluminum that can change based on its intended application. 4.4 percent copper, 1.5 percent magnesium, 0.6 percent manganese, and 93.5 percent aluminum make up a typical alloy.

What is mineral?

A mineral would be an inorganic solid that forms in nature and have an organized atomic structure and a known chemical composition. Even while it may seem like a mouthful, if you break it down, it becomes clearer. Minerals have been created naturally. They are not human-made. They have inorganic, minerals.

Another of the earliest varieties of age-hardenable aluminum alloys goes by the brand name Duralumin. The word is a mix of aluminum and Dürener.

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The tearing of a muscle during vigorous activity is called a sprain? True or false

Answers

Answer:

true

Explanation:

During a reproductive process, paired chromosomes often swap lengths of DNA at random. This process further increases the number of new genotypes created in each generation This helps explain why, in
species that reproduce sexually, no two siblings (except identical twins) look exactly alike. With all that recombination, you can end up with your mother's eyes, your father's nose, and how that combines
qualities from both parents. SC 012 L 16.14
Which mechanism produces this genetic diversity?
Y chromosome syndrome
Asexual reproduction
Crossing over
Mitosis

Answers

crossing over.
crossing over is when the alleles cross over and pair up, resulting in the genotype for an offspring

Crossing over is when the alleles cross over and pair up, resulting in the genotype for an offspring.

What is Crossing over?

When it comes to genetics and genomics, the term "crossing over" describes the DNA exchange that takes place between paired homologous chromosomes (one from each parent) during the formation of egg and sperm cells (meiosis).

This mechanism leads to novel allele combinations in the gametes (egg or sperm) generated, ensuring genetic variety in any baby born.

Crossing over is a cellular process that happens during meiosis when chromosomes of the same type are lined up. When two chromosomes — one from the mother and one from the father — line up, parts of the chromosome can be switched.

Therefore, Crossing over is when the alleles cross over and pair up, resulting in the genotype for an offspring.

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What is electric current?
O electrons that move one time
O The flow of moving electrons

Answers

Answer:

___________________________________________________________

Electrons, which continuously move in wire, are called Electric Current. For solid conductors, electric current refers to directional negative-to-positive electrons from one atom to the next. Liquid conductors and gas conductors, electric current refers to electrons and protons flow in the opposite direction.

___________________________________________________________

Answer:

The flow of moving electrons.

Explanation:

I just took the quiz.

list five evidence of photosynthesis and describe any two​

Answers

Answer:

Hi there, I will help you

Explanation:

It houses glucose, which plants use for food. The presence of starch in a leaf is reliable evidence of photosynthesis. That's because starch formation requires photosynthesis.

The process of genetic engineering: A) works to change outcomes of traits by altering genetic material. B) is the manipulation of the genetic code in an attempt to improve a species. C) allows scientists to create their own mutations in organisms D) all of the above

Answers

D) All of the above

Explanation:

Genetic engineering "allow scientists to create their own mutations in the organisms" by "manipulating the genetic code in attempt to improve a species" which is virtually the same as"altering genetic material".

How would you describe the interior of the lungs?​

Answers

Explanation:

The interior of the lungs is made up of spongy tissues containing many capillaries and around 30 million tiny sacs known as alveoli.

The alveoli are cup-shaped structures found at the end of the terminal bronchioles and surrounded by capillaries.

Answer:

It's spongy and air filled sort of.

Explanation:

The lungs are a pair of spongy, air-filled organs located on either side of the chest (thorax). The trachea (windpipe) conducts inhaled air into the lungs through its tubular branches, called bronchi. The bronchi then divide into smaller and smaller branches (bronchioles), finally becoming microscopic.

Cells go through a series of events known as the cell cycle as they grow and divide. During the cell cycle, a cell grows, prepares for division, and then divides to form two daughter colls. Each daughter col then
moves into a new cell cycle of activity, growth, and division. SC.912. L. 16.14
The cell cycle includes four phases - G1 SG2, and M. What occurs during the Sphase?
A. Prepares the cell for mitosis
B..There is intense growth and activity
C.New DNA is synthesized as the chromosomes are replicated
D.Cells increase in size and synthesize now proteins and organelles

Answers

Answer:

C

Explanation:

I think it’s C because starts to replicate and yea

The cell enters the cell cycle, and each daughter cell later moves into a new cell cycle of activity, growth, and division, and in the S phase, new DNA is synthesized as the chromosomes are replicated, which is present in option C.

What is the S phase in the cell cycle?

The cell cycle has different phases, and each phase is specific for a particular function, such as the G1 phase, which is the first growth phase. In the G1 phase, the growth of the cell takes place, such as the new protein synthesis, and then the cell enters the S phase, in which the DNA replicates and a copy is made.

Hence, the cell enters the cell cycle, and each daughter cell later moves into a new cell cycle of activity, growth, and division, and in the S phase, new DNA is synthesized as the chromosomes are replicated, which is present in option C.

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The Wunderlich Farms Boer Goat has a 4 chambered stomach and chews it's cud to assist with digestion. What type of adaptions are these?
A. 4 chamber stomach = behavioral and chewing cud = internal structural
B. 4 chamber stomach = external structural and chewing cud = behavioral
C. 4 chamber stomach = internal structural and chewing cud = external structural
D. 4 chamber stomach = internal structural and chewing cud = behavioral

Answers

Answer:

The answer is option A "4 chamber stomach = behavioral and chewing cud = internal structural"

Explanation:

Goats and other ruminants do not digest food directly as they eat their food and the reason is that ruminants do not have the enzymes that are necessary for breaking down the food directly as they eat so digestion in ruminants and particularly Goats has to undergo processes or procedures before the final digestion takes place.

All the processes in digestion for ruminant animals takes place in their four chambered stomachs which are the Rumen, Reticulum, Omasum and Abomassum.

In the four chambered stomach of Goat, the type of adaptation is behavioral and chewing cud which is the internal structure.

What is the process that allows plants to grow

Answers

photosynthesis? girl idek i need points

Answer:

photosynthesis allows plants to grow. they convert solar energy from the sun into sugars used for staying healthy.

Explanation:

hope this helped, have a nice day ♥

small molecules, such as oxygen and carbon dioxide, pass through membranes by a process called​

Answers

Answer:

diffusion

Explanation:

Answer: The process if called Diffusion! Explanation: If the molecule is so small like carbon dioxide, this process does the trick. When the concentration of O2 outside the cell is higher than inside, O2 molecules diffuse in, passing through the membrane like it isn't even there.

Energy is released from ATP when
a fourth phosphate is added to the molecule.
the last phosphate bond is broken.
all three phosphate bonds are formed.
the last phosphate bond is formed.

Answers

the last phosphate bond is broken.

that's called a macroergic bond between the 3rd and 2nd phosphate groups

Energy is released from ATP when a fourth phosphate is added to the molecule the last phosphate bond is broken.

What is ATP?

ATP, sometimes referred to as adenosine triphosphate, is a chemical that transports energy inside of cells. It is produced as a byproduct of photophosphorylation, which adds a phosphate group to a molecule using light energy, cellular respiration, and fermentation. It serves as the primary energy currency of the cell.

All forms of life utilize ATP. In addition to being used as an energy source, it is also integrated into deoxyribonucleic acid (DNA) during DNA synthesis and utilized in signal transduction pathways for cell communication.

Therefore, Energy is released from ATP when a fourth phosphate is added to the molecule the last phosphate bond is broken.

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Explain how an action potential and graded potential are different

Answers

Answer:

Graded potentials are brought about by external stimuli (in sensory neurons) or by neurotransmitters released in synapses, where they cause graded potentials in the post-synaptic cell. Action potentials are triggered by membrane depolarization to threshold.

Nitrogen is required for protein formation. What is responsible for the bulk of nitrogen fixation?
A.
air

B.
animals

C.
bacteria

D.
lightning

Answers

Answer:

C: Lightning

Explanation:

Because  bulk of nitrogen fixation is done by free living or symbiotic bacteria.

what causes an enlarged spleen??​

Answers

Explanation:

An enlarged spleen can be caused by infections, cirrhosis and other liver diseases, blood diseases characterized by abnormal blood cells, problems with the lymph system, or other conditions. Other causes of an enlarged spleen include: Inflammatory diseases such as sarcoidosis, lupus, and rheumatoid arthritis.

Which of the following lists identifies organisms that are producers in food webs?(20 points and multiple choice)

A. algae, grass, sunflowers
B. mushrooms, bacteria, earthworms
C. termites, fleas, ticks
D. grasshoppers, lichen, venus fly traps

Answers

Answer:

A

Explanation:

Algae, grass, and sunflowers all produce their own food since they can't consume anything.

i feel like its B. sorry if im wrong

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