The gender of offspring from sexual reproduction is determined by

A the mother only, because she has two X chromosomes.

B the father only, because he has one X and one Y chromosome.

C environmental factors.

D polygenetic inheritance.​

Answers

Answer 1

Answer:

B. the father only,because he has one X and one Y chromosome


Related Questions

In this lab, you will simulate birds with three
different beaks. After watching the birds feed, you
will remove fruit to simulate a change in the
environment. What question are you answering by
doing this observation? Write it by filling in the
blanks below.
What is the effect of

on..

Answers

By looking at how the birds interact with fruits in different environment, you can determine where birds are from, what beaks specialize in eating what kind of food, and how those traits came to be (Darwinism)

Answer:

1.

The independent variable is the type of food available.

2.

The dependent variable is the frequency of each type of beak (or number of birds with each beak type).

Explanation:

ong

According to the concept of “survival of the fittest," if a population of birds eats worms that they find deep under ground by using their beaks, which members of the bird population would be more fit?

A) birds that have flatter beaks
B) birds that have longer beaks
C) birds that have wider beaks
D) birds that have brighter beaks

Answers

The Answers to Darwin's Theory quiz!

1. B. coat color for blending in with dry grass

2. C. Individuals that are well suited to the environment reproduce, and those that are not well suited die before they reproduce.

3. B. overpopulation

4. B. competition among individuals for available food sources

5. B. fur color that closely matches the eucalyptus bark color

6. B. Island finches resembled mainland finches, but were not the same species.

7. D. He proposed that natural selection is the primary mechanism of evolution.

8. A. a process that selects variations that help with survival and that spreads the variations to more offspring

9. B. birds that have longer beaks

10. D. point 4

Edge 2021

According to the concept of "survival of the fittest," if a population of birds eats worms that they find deep under ground by using their beaks, birds that have longer beaks would be more likely to survive, which is present in Option B.

What is natural selection?

Natural selection is a process in which the only organisms that can adapt to the environment and its changing conditions are chosen by nature, such as in the case of the Darwinian finches. when different types of birds are present in the ecosystem and all can get their favorable food source, but when an adverse climate occurs and food is only available in deep ground, only long-beaked birds can survive because they can get food. This explains the survival of the fittest by the natural selection.

Hence, as per “survival of the fittest," if a population of birds eats worms that they find deep under the ground by using their beaks, birds that have longer beaks would be more likely to survive, which is present in Option B.

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Unzips the DNA strand by breaking hydrogen bonds

Answers

HELICASES unzips the dna at the beggening of replication to then break the hydrogen bonds

You want to make 1 ton ration of an 18% protein ration using corn (12%) and soybean meal (22%). How much of each will he have to mix together? Show your work for full credit.

Answers

Answer:

To make a 1 ton ration of an 18% protein ration using corn (12%) and soybean meal (22%), 0.6 tons of soybean meal and 0.4 tons of corn are needed

Explanation:

Using the Pearson’s Square calculations:

1. Subtract across the diagonal:

a. 18% - 12% = 6 parts soybean meal

b. 18% - 22% = 4 parts corn

2. Sum the parts:

a. 6 parts soybean meal + 4 parts corn = 10 totalparts

3. Divide each part by the total to calculate the percentage of each feed to include in the ration:

a. 6 parts soybean meal ÷ 10 total parts * 100 = 60.0% soybean meal

b. 4 parts corn ÷ 10 total parts * 100 = 40.0% corn

So, to make 1 ton ration of an 18% protein ration using corn (12%) and soybean meal (22%),

60% of soybean meal is needed = 60/100 * 1 ton = 0.6 tons of soybean meal

40% of corn is needed = 40/100 * 1 ton = 0.4 tons of corn

Light-dependent and light-independent reactions occur at the same time. True or False

Answers

true  because they are driven by the ATP made by the light-dependent reactions. Both systems shut down in the dark. The light-independent reactions can last a little longer if there is ATP remaining in the chloroplast.

What are some examples of nutrients that
circulate in blood? Check all that apply.
red blood cells
glucose (a simple sugar)
amino acids

fats

white blood cells

Answers

the answer would be all of them but fats so the top person is correct:)))

Describe some of the reasons for exploring the mid-Cayman ridge.

Answers

Answer:

Life on Earth goes back almost 4.1 billion years, but photosynthesis as characterized by cyanobacteria only appeared around 3.5 billion years ago (Ga). Since life on Earth predates photosynthesis, the exploration of this deep-water environment that lacks any source of light could provide information on what those life forms looked like.

Explanation:

This was the answer on edge

The major reason for exploring the mid-Cayman ridge is to provide

information on what those life forms looked like.

What is Photosynthesis?

This is the process in which plants manufacture their food in the presence

of sunlight and other compounds.

The mid-Cayman ridge which is present in a deep water environment has

lacks any source of light has some life-forms present. The exploration was

to find out the type of life forms present and how they appear.

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i need help plz plz plz plz plz plz

Answers

Answer:

We need a pic to help you.

Explanation:

Can enzymes work to catalyze another reaction once one is complete?

Answers

yes now please give me da points

During which phase of mitosis do the chromosomes pull away from the middle of the cell?

Answers

In Anaphase of mitosis chromosomes pull away from the middle of the cell.

During this period the replicated chromosomes are split and moved to the opposite poles of the cells.

What is mitosis?

It is the process by which cell replicates its chromosomes and then segregates them, producing two identical nuclei in preparation for cell division.

What are chromosomes?

It is along DNA molecule with part or all of the genetic material of an organisms.

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Poly" means many and "saccharide" means sugar. Why is
polysaccharide a good name for the picture on the right above

Answers

Answer: The name means many sugars, so polysaccharide meaning many sugars works for it.

Explanation:

Identify the labeled structures.
A: B: C: D: E:
The multiple questions are the same for each question. Please help!

Answers

Answer:

e cell wall that is the only one I am sure of because I can hardly see the rest

Write down important details about the immune system

Answers

Answer:

lungs,heart, stomach, and livers

Explanation:

I thinks what an immune system is

Answer:

important details about the immune system : it protects organisms from diseases, it can be self-distructive, white cells make your immune system work , and sleepless night hurt your immune system

Explanation:

23. Which of the below names is not a type of biologist?
a) paleontologist
b) botanist
I
c) zoologist
d) astrophysicist
BA

Answers

Answer:

D

explanation: it literally has physics in its name

What is the function of Primase?

Answers

Answer:

Explanation:

"Primase is an enzyme that synthesizes RNA sequences called primers.  primase produces RNA molecules, the enzyme is a type of RNA polymerase."

Hope this helps :)

Which component of a galaxy consists of tiny particles that look smoky or cloudy and can be found in the space between stars? A) Gas B) Stars C) Dust D)Sun

Answers

Answer: Gas

Explanation:

Look through the lesson lol i know your school

Nebulae are different luminous regions of the interstellar medium that can be made up of cosmic dust as well as ionized, neutral, or molecular hydrogen, hence option C is correct.

What is dust?

All the stuff between stars is referred to as interstellar matter by astronomers, and the complete collection of interstellar matter is referred to as the interstellar medium (ISM). Some interstellar material is gathered into massive clouds that are each referred to as a nebula.

Tiny pieces of solid matter drifting about in the region between stars make up cosmic dust. It's not like the dust you find in your home; instead, it has tiny particles that range in size from collections of just a few molecules to grains that are 0.1 mm in size.

Therefore, an interstellar medium can be made up of cosmic dust as well as ionized, neutral, or molecular hydrogen, hence option C is correct.

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What is osmoregulation?

Answers

Answer:

adalah penghijauwan kota

Osmoregulation is the active regulation of the osmotic pressure of an organism's body fluids, detected by osmoreceptors, to maintain the homeostasis of the organism's water content; that is, it maintains the fluid balance and the concentration of electrolytes (salts in solution which in this case is represented by body fluid) to keep the body fluids from becoming too diluted or concentrated. Osmotic pressure is a measure of the tendency of water to move into one solution from another by osmosis.[1] The higher the osmotic pressure of a solution, the more water tends to move into it. Pressure must be exerted on the hypertonic side of a selectively permeable membrane to prevent diffusion of water by osmosis from the side containing pure water.

Organisms in aquatic and terrestrial environments must maintain the right concentration of solutes and amount of water in their body fluids; this involves excretion (getting rid of metabolic nitrogen wastes and other substances such as hormones that would be toxic if allowed to accumulate in the blood) through organs such as the skin and the kidneys.


1. How is natural selection related to the process of evolution?

Answers

Answer:

Natural selection is related to the process of evolution because It is one of the processes that drives change and helps to clarify the diversity of life on Earth.

Explanation:

Hope that helps

Select the correct answer
Linda owns a great deal of land. She decides to rent her land to Andrea. However, she places certain restrictions on Andrea regarding the land use. Linda is using
which rights?
ОА. .
use rights
OB.
alienation rights
OC. management rights
OD. ownership rights

Help need answer ASAP !!

Answers

Management rights.

_______________________

True or false: recycling can positively impact Earth's spheres.

Answers

Answer:

true

Explanation:

Answer:

True

Explanation:

Recycling provides big benefits to the planet's atmosphere by reducing overall materials consumption. ... The more we recycle, the more we reduce the impacts of global warming on the earth's climate. Animal Safety. Ocean-dwelling animals are threatened by the large amounts of plastic trash dumped into the seas every year.

1. Why is it important to have some access to water?

2. What physical and social factors can contribute to making water unte?

3. Why is it not safe to drink the water in the Attowopikat First Nation community

4. What would be sustainable solution to the problem of unsafe drinking water in Attawapiskat?

Answers

Answer:

1.Water is obviously essential for hydration and for food production—but sanitation is an equally important, and complementary, use of water.

2.Sedimentation.

Runoff.

Erosion.

Dissolved oxygen.

3.Ontario First Nation of Attawapiskat isn't safe. It has high levels of a chemical byproduct produced by the chlorination process in the community's ailing water plant that needs millions of dollars in repairs.

4.Boiling. This is a reliable way to purify water.

Use of Iodine solution, tablets or crystals. This is an effective and more convenient method. ...

Use chlorine drops. Chlorine has the ability to kill bacteria in water. ...

Use water filter. ...

Use Ultraviolet Light.

What molecule do organisms obtain energy from

DNA
ADP
Sugar
ATP
All the above.

Answers

Organisms mainly use the molecules glucose and ATP for energy. Glucose is a compact, stable form of energy that is carried in the blood and taken up by cells. ATP contains less energy and is used to power cell processes. The flow of energy through living things begins with photosynthesis, which creates glucose.
Answer:
ATP

Explanation: as the other person said they mainly use glucose or ATP for energy. Adenosine triphosphate (ATP) is the source of energy for use and storage at the cellular level. The structure of ATP is a nucleoside triphosphate, consisting of a nitrogenous base (adenine), a ribose sugar, and three serially bonded phosphate groups.

I hope this helped !

Which statement about convection is correct?

A.
This transfer of heat can occur in gases.

B.
This transfer of heat can only occur in solids.

C.
This transfer of heat can only occur in gases and liquids.

D.
This transfer of heat can only occur in liquids.

Answers

C The transfer of heat can only occur in gases liquids I think that’s correct

True or False.
The lymphatic and immune systems contain the lymphatic vessels and ducts, lymph nodes, bone marrow, and spleen.

Answers

Answer:

True

Explanation:

I also like your profile picture

The lymphatic system consists of  lymphatic vessels and ducts, lymph nodes, and spleen. The immune systems consist of bone marrow. Hence, statement true.

What is immune system?

The system that helps to fight infections and diseases with the help complex system of tissues, cells, organs is called as immune system.

In humans, immunity is of 3 types including:

adaptive immunity- natural immunityinnate immunity- develops throughout lifepassive immunity- borrowed from any source that doesn't last long.

Bone marrow and the thymus are primary parts of the immune system. Bone marrow play significant role in production of blood cells including B and T lymphocytes. In also includes organs of lymph system such as lymph node, thymus, spleen, tonsils, lymph node, and lymph vessels.

Therefore, The statement above is true.  

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In the seventeenth century, Francesco Redi performed experiments using raw meat placed in jars.
• Half of the jars were covered, and half were left open,
• Redi noticed that the meat in the sealed jars did not have maggots, but the meat in the open jars did have maggots.
Redi concluded that only flies could make more flies,
.
Which part of the cell theory corresponds to Redi's findings?

Answers

Answer: B

Explanation:

''New cells come from the existing cells'' is a part of the cell theory which corresponds to Redi's findings.

Experiment performed by Francesco Redi

Francesco Redi conducted an experiment in which he showed that living organisms come from other living organisms. This worked combine with the work of other later scientists, helped to develop the third part of the cell theory which is cells come from other living cells.

Learn more about cell theory here: https://brainly.com/question/3966602

Which of the following processes cycles matter through different parts of an ecosystem?
More than one answer may be correct.
1. the nitrogen cycle
2. the water cycle
3. the carbon cycle

Answers

Answer:

the nitrogen cycle, the water cycle, and the carbon cycle

Explanation:

The water, carbon, and nitrogen cycles move nutrients through the different parts of an ecosystem. Water moves through organisms and the environment in different phases. Carbon moves through an ecosystem in carbon dioxide, minerals, and organic compounds. Nitrogen moves through an ecosystem in nitrogen gas, ammonium, nitrates, and organic compounds.

The biogeochemical cycle is a pathway that circulates the chemicals through the abiotic and the biotic factor. The nitrogen, water, and carbon cycle through various regions of an ecosystem.

What is a biogeochemical cycle?

The biogeochemical cycle is the movement of the chemicals and compounds of carbon, nitrogen, and water in the biosphere (biotic) and the atmosphere, lithosphere, and hydrosphere (abiotic) spheres of the earth.

These cycles move the nutrient through different spheres in the form of inorganic and organic compounds. It is an essential part of the ecosystem as they regulate the flow of the natural elements.

Therefore, option 1. nitrogen cycle, option 2. water cycle, and option 3. carbon cycle move through various parts of an ecosystem.

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What are P waves and S waves? How are they recored?

Answers

Answer:

A P wave is a wave that is Shaped kinda like a P that is where it gets its name.  

Same with the S wave. You measure them with a Therosimias meter.

What are the advantages and disadvantages to produce few offspring that are extensively cared for and protected?

Answers

Advantages: Since they’re well cared for, they will grow up to be strong and hopefully produce healthy offspring.
Disadvantages: Fewer of them means that when one is lost, it will have a greater effect on the group. They also cannot reproduce as quickly as if they had lots of offspring.

Which of the following are sources of extra nutrients that can cause algae to overgrow in water due to HUMAN activity? CAREFULLY select all options that apply. List the answers.


dissolved oxygen in water

treated waste water

viruses

combined sewage overflow (CSO)

fertilizers

cleaning products

dog poop on the streets of NYC

water running over rocks


(This is 7th grade science)

Answers

I’m not sure about the rest but I think Dog poop is one

If the process of meiosis shown to the right proceeds
normally, how many
chromosomes will cells A, B, C, and D have?
B

Answers

Answer:

If I’m correct it’s 15

Explanation:

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