Biology High School

In sexual reproduction, what helps to maintain genetic variation?
a. reduction division and fertilization

b.mitosis and fertilization

c. binary fission and fertilization

d. reduction division and mitosis

Answers

Answer 1

Answer:

The answer is a because it will give you genetic variation

Answer 2

The answer is A.) reduction division and fertilization

I took the test got it correct

In Sexual Reproduction, What Helps To Maintain Genetic Variation?a. Reduction Division And Fertilizationb.mitosis

Related Questions

When combined in the correct ratio, hydrogen and oxygen atoms can form water as show below.
+
O
O
Hydrogen
Oxygen
Water
In this example, water is an example of which of the following?
Molecules of an element
Molecules of a compound
Atoms of a compound
A mixture

Answers

Answer:

B

Explanation:

i took the test

The correct option is (B). Molecules of a compound.

What do you mean by molecules?

A molecule is a group of two or more atoms held together by attractive forces known as chemical bonds; depending on context, the term may or may not include ions which satisfy this criterion.

Moreover, molecules are made up of one or more atoms. If they contain more than one atom, the atoms can be the same (an oxygen molecule has two oxygen atoms) or different (a water molecule has two hydrogen atoms and one oxygen atom). Biological molecules, such as proteins and DNA, can be made up of many thousands of atoms.

Hence, the smallest particle of any substance which can exist independently and retain the physical and chemical properties of the substance, made up of one or different elements is a molecule.

Learn more about molecules:

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SOME ONE HELP ME!! FOR A MAJOR GRADE!!!

The allele for long whiskers in seals is dominant over the allele for short whiskers.

Part A.
What percentage of offspring could be expected to have short whiskers from a cross of parents with Ww and WW genotypes?

A.0%
B.50%
C.75%
D.100%

Part B.
What percentage of offspring could be expected to have a genotype of Ww between a cross of parents with the genotype Ww and Ww?

A.25%
B.50%
C.75%
D.100%

Answers

Answer:

Part A.  - D.) 100%

Part B - B.) 50%

Answer:

part a- 0%

part B- 50%

Explanation:

im not sure on part b but that sounds right

At what temperature does fusion begin to create a star?
10 million degrees
1 billion degrees
100 million degrees
1 million degrees

Answers

Answer:

The right answer is 15,000,000 celsius or 15 million, but the closest to that is 10 million i suppose

Explanation:

Which is the MOST accurate description about how the different types of feed mechanisms work.

A. Both positive and negative feedback loops amplify a departure from the set point.

B. Both to negative and positive feedback loop returns to the set point in the reverse direction

C. Positive feedback loops return to the set point in reverse direction, why negative feedback loops amplify the departure from this point.

D. Negative feedback loops return to the set point in reverse,wow positive feedback loops amplify a departure from the set point​

Answers

Answer:

D

Explanation:

Positive feedback loops are rarer than negative ones because of homeostasis, but they do occur. Negative feedback loops return to the set point in reverse, and positive feedback loops amplify a departure from the set point​.

Which is the dark reaction called a cycle

Answers

Thank for the points.

Answer:

Photosynthesis consists of two parts. The first requires sunlight and the second does not. The Calvin cycle is also called the dark reactions or light-independent reactions because it's the part that doesn't need energy from the sun to happen. The Calvin cycle takes place within the stroma of the chloroplast.

How do organisms make and break molecules?

Answers

Answer:

A metabolic pathway is a series of chemical reactions in a cell that build and breakdown molecules for cellular processes

A metabolic pathway is a series of chemical reactions in a cell that build and breakdown molecules for cellular processes. Anabolic pathways synthesize molecules and require energy. Catabolic pathways break down molecules and produce energy.

is it true that It is impossible for an environment to go beyond its carrying capacity for a specific organism.

Answers

Answer:

false, it is possible for a environment to go past its capacity, but it will have alot of problems with the food chain

Compared to terrestrial planets, Jovian planets have

A) smaller equatorial diameters and shorter periods of revolution
B) smaller equatorial diameters and longer periods of revolution
C) larger equatorial diameters and shorter periods of revolution
D) larger equatorial diameters and longer periods of revolution

AND
^^^

Compared to the Jovian planets in our solar system, the terrestrial planets have
A) less mass and are less dense
B) less mass and are more dense
C) more mass and are less dense
D) more mass and are less dense


AND
^^^^^^


Jupiter is a Jovian planet. Compared to the terrestrial planets, Jupiter has a
A) shorter period of revolution
B) shorter distance to the Sun
C) greater density
D) greater mass

Answers

Answer:

I think it c and more mass more dense and d

Explanation:

That’s it pls give brainliest

Answer: for the first one it’s is D: Larger equatorial diameters and longer periods of revolution.

Explanation: you can compare using the Earth Science Reference Table

Please help! (Please do 2 and 3, and if you want to do 4 go right ahead!) xoxo

Answers

I was wondering what grade you were in cause that’s really hard

can a cell can survive even if the process to produce ATP is disrupted?

Answers

Answer:

No, because ATP provides energy for cells in order for them to carry out their functions. If disrupted it will cause the transport chain to stop which causes ATP to stop and the cells can no longer carry out their functions and will die.

the answer is no to your question

why will water and oil not mix? ​

Answers

They are different substances

Answer:

water will sink while oil will float on the surface.Also their densities are different too .

Explanation:

HOPE YOU UNDERSTOOD! !

PLEASE HELP! ASAP!!!

Answers

B. The bases in DNA in the nucleus. The way our nitrogenous bases are arranged in DNA (A, T, C, and G) code for traits.

Fill in the blank.
_____ is the cell's way to store energy.

Answers

Adenosine triphosphate

the half-cooked egg yolk oozes out only when it is still hot.In the same manner,the magma on the mantle also rises because of high temperature, in the mantle, or the crust?​

Answers

Answer:

the mantle

Explanation:

The correct answer would be the mantle.

The magma is a hot, molten fluid or semi-fluid located beneath the earth's surface and capable of finding its way through fissures into the surface of the earth in a process known as a volcanic eruption.

From the innermost to the outermost, the earth layer consists of the inner core, the core, the mantle, and the crust. More specifically, the magma is known to originate from the lower part of the crust and the upper part of the mantle. The mantle's temperature is high and forms a layer of partially molten rock.

A couple has five children with all blood type a. The mothers blood type is O and the fathers blood type is a

Answers

Answer:

idk

Explanation:

my bad I don't know it

The central atom in an amino acid that all the groups connect to is a
O A. Hydrogen
.
O B. Oxygen
• O C. Carbon
.
O D. Nitrogen

Answers

Answer:

C. Carbon

Explanation:

The central atom in an amino acid that all the groups connect to is a carbon atom.

Amino acids are monomeric units of proteins. They are bifunctional in that they have an amino group and a carboxyl group. These groups are attached to a carbon atom, α-carbon, in a molecule.

This is common to all amino-acids.

PLZ HELP!!

name the glaciers that are receding at the fastest rate in the world

​

Answers

Answer:The world’s glaciers are in retreat. The great tongues of ice high in the Himalayas, the Andes, the Alps and the Rockies are going back uphill at ever greater speeds, according to new research.

Explanation:just give me brainilest

Why don't lunar eclipses occur during full moons

Answers

Answer:

Because the moon's orbit around Earth lies in a slightly different plane than Earth's orbit around the sun, perfect alignment for an eclipse doesn't occur at every full moon. A total lunar eclipse develops over time, typically a couple hours for the whole event.

21. The diagram below represents a sequence of events that occurs in living things.
х
are digested into
Smaller molecules
which can be synthesized into
Fat
Starch
Protein
DNA
Letter X represents
Inorganic molecules
O organic molecules
O biological catalysts
O simple sugars

Answers

Answer: b

Explanation:

All the smaller molecules are made up of the organic elements

The study of a living being is called biology.

The correct answer is B.

The process of conversion of a large molecule into a smaller molecule with the help of an enzyme is called digestion. The enzyme converts the organic and complex molecules to the simpler molecule which helps in absorption and later on is used up to form ATP.

According to the question, the larger molecule which is an organic molecule is breakdown into smaller molecules.

Hence, the correct answer is B that is an organic molecule.

For more information, refer to the link:-

Warm air rises and takes heat with it; eventually it cools and sinks.

What is the scientific method?

Answers

The scientific method is an empirical method of acquiring knowledge that has characterized the development of science since at least the 17th century. It involves careful observation, applying rigorous skepticism about what is observed, given that cognitive assumptions can distort how one interprets the observation. It involves formulating hypotheses, via induction, based on such observations; experimental and measurement-based testing of deductions drawn from the hypotheses; and refinement (or elimination) of the hypotheses based on the experimental findings. These are principles of the scientific method, as distinguished from a definitive series of steps applicable to all scientific enterprises.

15 POINTS AND BRAINLIEST (IF CORRECT)!!

Which statements describe hormones in plants? Check all that apply.

Cutting stems can stimulate hormones to start lateral leaf growth.

Some tropisms are controlled by hormones.

Cells grow faster in areas where auxin is concentrated.

Hormones help buds form and grow in the winter.

Auxin is the only hormone involved in plant development.

Answers

1 and three ........................

Answer:Cutting stems can stimulate hormones to start lateral leaf growth.

Some tropisms are controlled by hormones.

Cells grow faster in areas where auxin is concentrated.

Hormones help buds form and grow in the winter.

Auxin is the only hormone involv

Explanation: took test on missed this question, had A,B,C,D.. answer all of the above. So its all of them.

Describe the nitrogen cycle in your own words and how the nitrogen cycles through our Earth. ​

Answers

Answer:

The nitrogen cycle is the circulation of nitrogen in various forms through nature.

Explanation:

The correct answer will get Brainliest. Choose all the answers that apply.
Ground tissue _____.

is the most abundant plant tissue
transports food around the plant
is responsible for photosynthesis
stores food in leaves, stems, and roots
absorbs water from the air

Answers

Answer:It's A,B,E

Explanation:

Answer:

is the most abundant plant tissue  

is responsible for photosynthesis

stores food in leaves, stems, and roots

Explanation:

Describe how differentiation of cells is different between animal and plant cells

Answers

Answer:

here

Explanation:

animal cells and plant cells share a common component of a nucleus cytoplasmic microchondria in a cell membrane plant cells have three extra components of vacuole chloroplasts and a cell wall

can i have some help on number 2?

Answers

Answer:

C) The waves amplitude

Explanation:

Answer:

The measurement labeled E is the wave's amplitude.

Explanation:

A vertical rise in a wave length is the amplitude of the wave.

The distance between each curve is the wavelength, if it is a long distance than it is slow if it is a short distance than it is fast.

The waves period is the bottom of the wave where no movement is constant.

how are trace fossils unique

show the activities of an organism and not the body

they showed the body of an organism not the activities

they are never fossils of dinosaurs

they are always fossils of dinosaurs ​

Answers

Answer: they showed the body of an organism not the activities

Explanation:

What affects the volume and pitch in sound waves? *please help!*​

Answers

Answer:

the volume increases in amplitude of the sound wave. Pitch is seen as a change in the frequency

Explanation:

is this what you were asking for?

Which flow chart correctly organizes the structures of heredity, from least to most complex? codon ® gene ® DNA ® chromosome gene ® chromosome ® codon ® DNA DNA ® codon ® chromosome ® gene chromosome ® DNA ® gene ® codon

Answers

Answer:

codon ® gene ® DNA ® chromosome

Explanation:

The flow chart correctly organizes the structures of heredity, from least to the most complex - codon ® gene ® DNA ® chromosome

Chromosomesare thread-like structures located in the nucleus, which carries genetic information from generation to generation.an organized package of DNA, Different organisms have different numbers of chromosomes.DNADNA, or deoxyribonucleic acid, is the hereditary material in almost all organisms.Nearly every cell in a person's body has the same DNA.It has a huge number of nitrogen base sequences and specific segments called geneGeneA gene is the basic physical and functional unit of heredity.Genes are made up of DNA.genes vary in size from a few hundred DNA bases to more than 2 million bases that form codons

Thus, The flow chart correctly organizes the structures of heredity, from least to the most complex - codon ® gene ® DNA ® chromosome

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What happens during meiosis I?
A. The DNA of each chromosome gets copied.
B. Two haploid cells are formed.
C. Sister chromatids are pulled apart.
D. Four haploid cells form from each parent cell.

Answers

In the first phase of meiosis, two haploid cells are formed. (Option B).

What is meiosis?

Meiosis is one of the kinds of cell division. In this type of cell division, we see it occur mostly in the gamete cells during reproduction.

Now the meiosis occurs in phases, in the first phase of meiosis, two haploid cells are formed. (Option B).

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if an owl eats two mice and two moles, but the moles have twice as much mass, then,??

Answers

The owl receives more biomass from the mole because it’s twice as much
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