Which process involves TWO DNA divisions?
A. Mitosis

B. Meiosis

Answers

Answer 1

Answer:

b) meiosis

Explanation:

 

Answer 2

Answer:

B. Meiosis

Explanation:

Meiosis involves two DNA divisions.


Related Questions

Plz help... Define the terms. a) Transpiration Pull b) Capillary C) Wilting d) Guttation​

Answers

Answer:

a) the process in which a force of pulling causes the upward movement of water in the xylem vessels

b) the smallest blood vessel in the body which conveys blood between the arterioles and venules.

c) loss of turdgitdity in a plant due to excessive water loss through transpiration.

d) when water is secreted from hydathodes (small pores) on the leaf margins of plants at night .

What happens if you throw a rock hard enough? (Explain escape velocity)

Answers

Answer:

it would probably break something depends on were you are

Explanation:

This equation is unbalanced. Which of the following is the correct balanced equation for this reaction?

Answers

Answer:

There is no any unbalanced equation

A scientist studied a population of birds for 10 years. During that time, the population was never fewer than 30 birds and never more than 50. Her data showed that over half of the birds born did not survive to reproduce, because of competition for food and predation. She noticed that In a single generation, about 90% of the birds that were born lived to reproduce, and the population increased to 90. Which inference(s) about this population might be true

Answers

Answer:

A particular population limiting factor or factors must have been removed

Explanation:

The population of the birds must have been kept between 30 and 50 individuals by population limiting factors such as the presence of predators within the community or competition for resources such as food or spaces.

For the population to shoot up to 90 all of a sudden, it may be that one or more of the population limiting factors has been removed from the population. It could be that a major predator has been removed from the community or the competition for food/space is now significantly reduced due to more food/space in the community.

When and where would you expect to find the highest rate of primary productivity

Answers

Answer: Net primary productivity is the amount of gross primary productivity remaining after respiration, which is about 40 and 85 percent. Sloughs and marshes, as well as tropical rain forests, possess the highest rates of net primary productivity; deserts have the lowest.

Explanation:

I explained on the top-

The highest rate of primary productivity in terrestrial environments takes place in swamps and marshes and in tropical rainforests, and in aquatic environments it takes place in algal beds, estuaries, and reefs.  

• In ecology, primary productivity refers to the rate at which conversion of energy to organic substances takes place by the photosynthetic producers that attain energy and nutrients from the sunlight, and chemosynthetic producers that attain chemical energy via oxidation.  

• The majority of the energy assimilated by plants via the process of photosynthesis is not stored as organic substance, however, is utilized at the time of cellular respiration.  

• In the process, the organic components like proteins, carbs, and fats are dissociated to provide energy in the form of ATP for the metabolic needs of the cells.  

• The energy not utilized is stored in the tissues of the plants for future use and is known as the net primary productivity.  

• The highest net primary productivity in terrestrial environments takes place in marshes and swamps and in tropical rainforests, and in aquatic environments it takes place algal beds, estuaries, and reefs.  

These environments are mainly critical for the sustenance of global biological productivity.

To know more about:

https://brainly.com/question/14017102

WILL IVE BRAIN?? Why might humans not have widespread regeneration abilities?

Answers

Answer: because mammals have more complex biological structures; limb regeneration would require sophisticated controls to ensure that limbs and organs don’t grow out of control.

Explanation:

What was Darwins “
master work” titled

Answers

Answer:

Origin of Species by Means of Natural Selection

When comparing fossil A to fossil B, which is most likely correct?
Air
Soil
Up
Fossil A
-Fossil B

Answers

Fossil B would most likely be correct in this situation

Which of these organs are parts of the brain?
а) cerebrum
b) cerebellum
c) brainstem
d) all of above

Answers

Answer:

all of above

Explanation:

The answer is all of above







What does "synthesis" mean?
A. to read DNA

B. to tear apart

C. to make something

Answers

Answer:

I believe it is C to make something

C. To make something

what is a halflife in science?

Answers

One-half of the atomic nuclei of a radioactive sample to decay

Crossing over occurs during Prophase II.

A. True

B. False

Answers

False
crossing over occurs in prophase 1 of meiosis 1. The significance of this crossing over is to ensure cell differentiation. If this occurred in prophase two it means the cells in meiosis 1 will be identical.

Answer:

B. False

Explanation:

Crossing over not occurs in prophase II. It occurs only during prophase I.

How does sugar leave the phloem?

Answers

The high turgor pressure drives movement of phloem sap by “bulk flow” from source to sink, where the sugars are rapidly removed from the phloem at the sink. Removal of the sugar increases the Ψs, which causes water to leave the phloem and return to the xylem, decreasing up

Explain how different types of cells help organisms live and grow?
Different types of cells have different jobs that are necessary to keep organisms alive.
Different types of cells are only found in specific types of organisms.
Cells are necessary in order for all organisms to grow big and hunt for their food source.
Cells provide support for all organisms to be able to move.

Answers

Answer:

Different types of cells have different jobs that are necessary to keep organisms alive. And cells also give the living animal more support. They also hold the genetic information of that organism in their nucules. This is with most cells but bacteria cells do not contain nucules.

What is a photosystem?

Answers

Answer:

Photosystems are functional and structural units of protein complexes involved in photosynthesis. Together they carry out the primary photochemistry of photosynthesis: the absorption of light and the transfer of energy and electrons.

Explanation:

i tink this is helpful dor you

Photosystems are functional units that are defined by a particular pigment organization and association patterns, whose work is the absorption and transfer of light energy, which implies transfer of electrons. I kinda changed it so it is not plagiarism! Hope this helped

Which of the following is NOT an example of natural selection? *
A. Plants with thorns are less likely to be eaten by herbivores than other members of the same species that lack thorns.

B. Bacterial populations in hospitals develop resistance to drugs used to combat infection by them.

C. Scientists breed cows that give greater amounts of milk than their ancestors.

D. Fruit fly larvae with an enzyme to break down alcohol are better able to feed on fermenting fruit than those that lack the enzyme.

E. Female fish that produce more eggs leave more offspring than those that produce fewer eggs.

Answers

Answer:

The Answer is C

Explanation:

When scientists breed cows to produce more milk, this has not occured naturally and thus is not natural selection.

Answer:

C. Scientists breed cows that give greater amounts of milk than their ancestors.

Explanation:

The scientists breed cows that give greater amounts of milk than their ancestors is not an example of natural selection. So, option (C) is correct.

What is the difference between gene mutations and chromosome mutations?
A. Gene mutations are preventable and chromosome mutations are not

B. Gene mutations can happen easily and chromosome mutations are more difficult

C. Gene mutations only affect one gene while chromosome mutations affect many genes

Answers

Answer:

C. Gene mutations only affect one gene while chromosome mutations affect many genes.

Explanation:

The difference is that the gene mutations only affect one gene while chromosome mutations affect many genes.

In which process do the chromosomes line up in a single line in the middle of the cell?
A. Meiosis

B. Mitosis

Answers

B because The phase of mitosis that allows the chromosomes to line up along the middle of the dividing cell is referred to as metaphase. The chromosomes usually line up at the plate of the metaphase after the mitotic spindle must have subjected it to tension. hope this helped!

Answer:

B. Mitosis

Explanation:

In mitosis the chromosomes line up in a single line in the middle of the cell.

El estómago es un órgano parecido a un saco que contiene los alimentos y comienza a digerirlos segregando jugo gástrico. ¿De qué sistema o aparato es parte el estomago? *

Answers

Answer:

Sistema digestivo

Explanation:

Los principales sistemas del cuerpo humano son:

Sistema respiratorio, sistema circulatorio, sistema nervioso, sistema inmune, sistema digestivo, sistema óseo, sistema urinario, sistema reproductor y sistema muscular.

Como dice el enunciado, el estómago comienza a digerir los alimentos haciendo parte, así, del sistema digestivo cuya función es digerir los alimentos y absorber sus nutrientes.

Each Taxonomy (category) gets less and less specific as they go further down the list.

A. True

B. False

Answers

Answer:

B. False

Explanation:

The levels of classification, from broadest to most specific, include: kingdom, phylum, class, order, family, genus, and species.

Answer:

B. False

Explanation:

Taxonomy is the study of the general principles of scientific classification.

(Easy question)
What is an Adaptation?

Answers

Answer:

The way something changes to fit its natural environment or surroundings to have a better chance at success for anything

Explanation:

Adaptation is the biological method through which organisms adjust to new settings or changes in their current environment, according to evolutionary theory.

☆彡Hanna

Trastorno alimenticio caracterizado por una gran pérdida de peso, que el propio paciente se provoca y que puede conducir a un estado de inanición.

Answers

Answer: Anorexia nerviosa.

Explanation:

La anorexia nerviosa es un trastorno o desorden alimenticio en donde se produce un rechazo de la comida debido a un temor excesivo a subir de peso, llegando a un estado de inanición serio. Entonces, se produce un deterioro en la salud y una debilidad causada por una ingesta insuficiente de nutrientes causando una desnutrición que altera diversas funciones del organismo. Es mas común en mujeres jóvenes o adolescentes aunque se reportan casos en ambos sexos y a cualquier edad. No debe confundirse con otro trastorno llamado simplemente anorexia, que es un síntoma que se caracteriza por una falta de apetito debido a alguna causa orgánica.

Este trastorno puede ocurrir por diversas causas que vienen acompañadas por una distorsión de la imagen corporal propia, en donde la persona considera que debe perder más peso de lo que se considera saludable y normal para su edad y estatura, llegando a estados raquíticos. También hay muchos casos en donde además de una dieta extrema, se realice ejercicio de manera excesiva o que utilicen otros métodos para bajar de peso como el abuso de laxantes u otros medicamentos.

 Algunos factores de riesgo para el desarrollo de la anorexia nerviosa pueden ser:

Personalidad perfeccionistaImagen propia negativa o baja autoestimaPresiones socialesPadecer algún trastorno de ansiedad

Which of these is an abiotic factor in a rainforest ecosystem?
Tree cover
Biodiversity
Trophic levels
Precipitation

Answers

I'd say precipitation, it won't be alive though so biodiversity is wrong


NO LINKS PLEASE

In the predator-prey relationship between lions and zebras, when the population of zebras is great, the population of lions will

A. decrease

B. increase

C. stay the same

D. die off

Answers

Answer:

B. Increase

Explanation:

Since lions rely on zebras as a food source, if there are more zebras (more food sources for the lions), there will also be more lions. Therefore, the lion population would increase initally.

i would assume it would decrease. not die off or increase. there’s no reason for it to increase.

what are the effects of a change in protein? there is 3

Answers

Generally, mutations result in reduced protein function or no protein function. A mutation with reduced function is called a leaky mutation because some of the wild-type function “leaks” through into the phenotype. A mutation that results in no protein function is called a null mutation

pushing a chair requires less energy than pushing than pushing a desk because

A. The surface area of the desk is larger.

B. The desk has less mass then then the chair

C. The chair has less mass then the desk

D. The chair is smaller

Answers

Answer:

c

the chair has less mass then the desk

what are cells surrounded and protected by?

Answers

Answer:

cells are surrounded by a structure called the cell membrane — which, much like the walls of a house, serves as a clear boundary between the cell's internal and external environments. The cell membrane is sometimes also referred to as the plasma membrane.

Answer:

The plasma membrane, or cell membrane

Explanation:

can anyone tell me what all books are there for cbse pcb class 11​

Answers

Answer:

NCERT Biology for Class 11.

NCERT Chemistry Part I for Class 11.

NCERT Chemistry Part II for Class 11.

NCERT Physics Part I for Class 11.

NCERT Physics Part II for Class 11.

NCERT Hornbill - English Core for Class 11.

NCERT Snapshot - Supplementary English Core for Class 11.

hope it helps

I’m confused help me pls

Answers

Claim: This process uses expensive fertilizers and pesticides to grow pest free crops which may be produced in excess. Explain the reasons why people would go against growing wheat this way.

Your answer: Here are 3 reasons that go against growing wheat this way.

1. The fertilizers and pesticides are expensive and cost farmers a lot which takes away from the revenue that farmers make from growing the crops in the first place.

2. Other then fertilizers and Pesticides its a lot of work as you can see on the chart throughout the year there are many things you must do too keep crops bug free and pest free this reason I'm explaining says that taking and doing all of this work for not pests/bugs is too much and not needed.

3. Fungicide Is needed a lot and incredibly expensive when you used/spray it on crops that much and point goes a lot more for large crops too.

If these reasons don't work, find factors that or counterclaims that go against this method of harvesting wheat. (This is what your supposed too do)

Lisa is investigating a chemical reaction involving carbon compounds.which of these results could not occur cording to scientific laws about chemical reactions matter and energy

Answers

Answer: The mass of carbon in the products is greater than the mass of carbon in the reactants.

Explanation:

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