During which phase of meiosis does crossing over of chromosomes occur?
prophase I
metaphase I
anaphase I
telophase I

Answers

Answer 1

Answer:

prophase l

Explanation:

Answer 2

Answer:

prophase 1

Explanation:


Related Questions

A mother has one allele for dimples and one allele for no dimples. How many
of her gametes will carry the allele for dimples?

A. 0%
B. 25%
C. 100%
D. 50%

Answers

I am pretty sure that the answer is D.) 50%

Answer:

50%, i believe

Explanation:

So the mother in the problem must have gotten her alleles from her mother and father. Who donated what we are not sure. All we know is that she got one allele for dimples and one allele for no dimples. These are part of the mother's somatic cell DNA. This DNA is duplicated during interphase, right before meiosis occurs as the mother begins to form her gametes, however.

what other animals benefit from eachother? this is a simbiotic relationship

Answers

Answer:

There is coral and algea.

Explanation:

Hey there!

An alligator and a bird have a symbiotic relationship called mutualism. The bird gets its food from the alligators teeth, while cleaning the alligators mouth.


Hope this helped!

What is source of the DNA for the strawberry plant?

It was absorbed from the soil
It was passed on from the parent plant
It was created by the plant using sunlight
It was borrowed from animals that feed on the plant

Answers

Answer:

passed on by parent plant

Explanation:

both parents dna are present half of fathers and half of mothers

B, it was passed on from the parent plant, because half of each parent plants dna makes up the plants own unique strands of dna. Sorry for being 2nd.. brainliest is appreciated!

Describe the advantages of a four chambered heart compared to heart with two or three chambers

Answers

Four chambered heart keeps oxygenated and deoxygenated blood separate and has double circulation while three chambered heart has a single circulation. Two chambered heart only has single atrium and single ventricle

Which factors are included in watershed conservation? Check all that apply.
protecting different kinds of wildlife
restoring vegetation in certain areas
preventing damage to crops from precipitation
ensuring improvement of environmental health
relocating ecosystems away from polluted areas

Answers

Answer:

Protecting different kinds of wildlife.Restoring vegetation in certain areas.Ensuring improvement of environmental health.Relocating ecosystems away from polluted areas.

Explanation:

These are all the factors that are included in watershed conservation. Watershed conservation is very important to the environment for several reasons. Freshwater from the watershed is often used by people for the purposes of drinking, cleaning and bathing. Conserving this source allows us to avoid the depletion of freshwater supply. Moreover, it is important to ensure that such water is not polluted, both for the benefit of humans, as well as to ensure that plants and animals that require this water are able to access it safely.

Answer:

D

Explanation:

What do geologists think happened as the last ice age ended?
O A. Sea levels rose over 300 feet.
B. A mass extinction occurred.
C. Glaciers advanced worldwide.
D. Dense forests grew for the first time.

Answers

Answer:

A) Sea levels rose over 300 ft.

The correct option is A.

What ended the last ice age?

New University of Melbourne research has revealed that ice ages over the last million years ended when the tilt angle of the Earth's axis was approaching higher values.

When was Earth's last Ice Age?

Also called the Pleistocene era, or simply the Pleistocene, this epoch began about 2.6 million years ago and ended 11,700 years ago, according to the International Commission on Stratigraphy (opens in new tab).

Learn more about the ice age here https://brainly.com/question/1982956

#SPJ2

Difference between homology and heterology?

Answers

Hello! I got the answer! So if you look at the word homo and hetero. Homo means the same and hetero means different. So homology is the study of to show the simliarity between organisms. And heterology is the study of to show difference between organisms. This is my first time answering! Anyways have a good day/night!!

which of the following is the lotic system?

A. a lake
B. a puddle
C. a stream
D. a pond

Answers

Answer:

option C

Explanation:

lotic system means a flowing body of water

Answer:its a stream c

Explanation:

Ocean water is generally

Warm
Salty
Ice Cold
Fresh Water

Answers

Answer:

Deep ocean water (DOW) is the name for cold, salty water found deep below the surface of Earth's oceans. Ocean water differs in temperature and salinity. Warm surface water is generally saltier than the cooler deep or polar waters; in polar regions, the upper layers of ocean water are cold and fresh.

Why is the point of attachment of the frog's tongue considered to be advantageous?

Answers

Answer:

Frog's tongues are attached to the front of their mouths rather than at the back like humans.

Explanation:

This is an advantage because most frogs eat flies and insects and the like. Because they can flick their tongue a long way out they are able to catch food more effectively. This is an example of an adaptation.

Which of these Electromagnetic waves has the most kinetic energy and can be
dangerous?
O radio waves
O gamma rays
O ultraviolet waves
visible light

Answers

Answer:

Gamma rays

Explanation:

I believe

Which of the following is a risk of commercial fishing?

Answers

fatality rate that is 23 times as high than for all regular workers

How do we create stronger evidence?
A) better observations
B) better opinions
C) better theories
D) better inference

Answers

Answer:

A

Explanation:

Opinions, theories, and inferences are all guess-based and rely on non-factual evidence whereas observations are based on de facte material which, most of the time, is better to support claims or statements.

The average distance between the center of the Earth and the center of its moon is 3.84 x 108 m. The mass of the earth is
5.97x1024kg. What is the orbital speed and period of Earth's moon?
V, - 1.02 x 10 m/s
V, = 3.26 x 10ʻm/s
T= 2.37 x 10° s = 27.4 days
T = 6.24 x 106 s = 82.2 days
b. V, = 2.03 x 10²m's;
d. V, - 1.02 x 10 m/s;
T = 3.67 x 10ºs = 39.4 days
T = 4.82 x 10Ⓡs = 57.3 days

Answers

Answer:

T = 2.37 x 106 s = 27.4 days would be the answer  

Explanation:

How do the activities of squirrels affect oak trees?
A.
They cause the trees to produce acorns during the winter.
B.
They make it more difficult for the tree to reproduce.
C.
By removing acorns, their behavior causes harm to the trees
D.
They help the trees reproduce more successfully

Answers

Answer:

I want to say it is

They help the trees reproduce more successfully

Explanation:

this is because the others do not make sence

Blood contains many different types of blood cells
suspended in blood
but only
blood cells carry oxygen.

Answers

Answer:

yes

Explanation:

1. mutations cause A. DNA screenings B. genetic finger prints C. genetic disorders D. protein synthesis

Answers

Answer:

A ) DNA screening

Explanation:

mutations changes up your DNA

Mendel used more than 28,000 pea plants in his experiments. Why is it
important that he studied such a large sample of pea plants?

A. Having more samples gave him results that were closer to the
predicted ratios.

B. The pea plants were very inexpensive.

C. Using more plants made the experiments take less time.

D. Most pea plants die after producing seeds.

Answers

It is important that he studied a large amount because A: Having more samples having him results that were closer to the predicted ratios.

what would happen if a new predator was introduced into the ecosystem that only ate mice ? Would the mouse population be lowered ?What else would happen because of this

Answers

Answer:

The mice population would be lowered, and that predator could be a prey to other predators in that environment.

Explanation:

The introduction of new predator has both positive as well as negative effects on the ecosystem and environment.

What happen when the predator in introduced in an ecosystem?

If a new predator was introduced into the ecosystem that only ate mice so this results in the reduction of population of mice which leads to the disturbance of the ecosystem.

So we can conclude that introduction of new predator has both positive as well as negative effects on the ecosystem and environment.

Learn more about ecosystem here: https://brainly.com/question/15971107

PLEASE HELP Compounds that always contain the element carbon are called

Answers

I believe the answer is organic compound

Carbon is an organic element found in all life forms. Which of the following
occurs through the process of breaking down carbon-based molecules?
Water molecules are transferred through the body.
Elimination of waste products occurs.
Energy needed for life functions is released
Absorbing of oxygen through pore occurs.

Answers

Answer:

The third option Energy for life functions is released

Explanation:

Gymnosperms and angiosperms, which are seed plants, alternate between ( 2 ) generations.


Gymnosperms are non-flowering plants with (EXPOSED SEEDS)


and angiosperms are flowering plants with . ( PROTECTED SEEDS)


Sporophytes produce spores for reproduction. In seed plants, the male reproductive structure produces , (MICROSPORES)


and the female reproductive structure produces . (MEGASPORES)


Gametophytes produce (GAMETES)


through the process of . (MITOSIS)


Answers are in the question yw :)

Answers

Answer:

I've corrected the relevant part in the false statement to make it true. Please see below:

Gymnosperms and angiosperms, which are seed plants, alternate between (2) generations.

The statement is true. It alternates between haploid and diploid stages.

Gymnosperms are non-flowering plants with EXPOSED SEEDS and angiosperms are flowering plants with PROTECTED SEEDS.

This statement is also true. The egg is fertilized inside of the flower.

Sporophytes produce spores for reproduction. In seed plants, the male reproductive structure produces MICROSPORES and the female reproductive structure produces MEGASPORES.

The statement is correct. The male gametophyte will fertilize the female gametophyte, known as the egg, to produce a zygote.

Gametophytes produce GAMETES through the process of MITOSIS.

False. The process of meiosis results in gametes, and not mitosis.

Hope that answers the question, have a great day!

Answer:

answer in picture

Explanation:

The scientific name of an organism is made up of what two group names?

Answers

Scientific names follow a specific set of rules. Scientists use a two-name system called a Binomial Naming System. Scientists name animals and plants using the system that describes the genus and species of the organism. The first word is the genus and the second is the species.

Answer:

Genus species

Explanation:

Scientists use a special naming system for organisms. It is made up of two words.

The first word is the genus of the organism and the second word is the species of the organism.

The first word, which is the genus, is always capitalized, but the second is not. Both words are italicized if possible, but if you are handwriting the scientific names, an underline suffices.

An example of a scientific name for a house cat is:

Felis catus

______ means that the alleles in the genotype are different. A) Recessive
B) Homozygous C) Allelopathic D) Codominant E) Heterozygous

Answers

Answer:

B because homozygous is the alleles in the genotype

Explanation:

heterozygous is when the alleles are different

Deserts are only found near the equator.
Please select the best answer from the choices provided
T
F

Answers

Answer:

False

Explanation:

Answer:

False

Explanation:

Many deserts are not located around the equator with the most common example of this being the Gobi desert. Some books even contain the information that the Arctic and the Antarctic are deserts as well and they are located on the poles.

Mammals have two body systems which work together to move oxygen to all parts of the body. Which of the following body systems supply the body with oxygen?

Answers

Answer:respiratory system

Explanation:The primary function of the respiratory system is to deliver oxygen to the cells of the body's tissues and remove carbon dioxide, a cell waste product. The main structures of the human respiratory system are the nasal cavity, the trachea, and lungs

Answer:

the lunges, heart, throat, etc.

Explanation:

Which external stimulus is responsible for negative geotropism shown by
the stem of a plant?

•sunlight

•gravity

• water

Answers

Answer:

Tropism

Sunlight-phototropism

gravity-geotropism

IDK what what water is

Explanation:

In response to an increasing blood glucose level, the human body will normally

A) release a hormone that lowers the blood glucose

B) use the excess glucose to make protein

C) store the glucose in cell nuclei

D) produce a hormone that destroys the glucose

Answers

I think it’s a) release a hormone that lowers the blood glucose

Kendra was removed from the voting committee for Homecoming King because one
of the nominees was her boyfriend. Why was she removed?
bias
stereotype
OOO
manipulation of information
vested interest

Answers

Answer:

Bias

Explanation:

definitely because she could have been biased

A marine ecologist has constructed the conceptual model shown in the diagram. Which prediction can be made from using this model?

Answers

Hello. This question is incomplete. You forgot to put the diagram and answer options.

The diagram is in the figure attached below and the answer options are:

Where the tertiary consumers get their energy

How often primary producers are able to reproduce

When bacteria and fungi initiate the process of decomposition

 Whether other secondary consumers are present

Answer:

Where the tertiary consumers get their energy

Explanation:

The diagram establishes the visualization of a food network where it is possible to visualize all the relationships between predators and game, in addition to being possible to observe the relationships between each trophy within a food chain.

With this, it is possible to determine all the ways that tertiary consumers are able to obtain energy and observe how that energy reached them.

Answer: A

Explanation: I just took the test

Other Questions
Read the following paragraph and select the correct answer,She knew now what meant the duties of the household, the heavy work of the kitchen. Her pretty hands soon lost allsemblance of the care of bygone days. She washed the soiled linen and dried it in her room. She went every morning tothe street with the refuse of the kitchen, carrying the water, stopping at each flight of stairs to take breath-wearing thedress of the women of the people; she went each day to the grocer, the fruiterer, the butcher, carrying her basket onher arm, bargaining, defending cent by cent her miserable money. (from "The Necklace," by Guy de Maupassant)What is the topic sentence of this paragraph?She knew now what meant the duties of the household, the heavy work of the kitchen.Her pretty hands soon lost all semblance of the care of bygone days.She washed the soiled linen and dried it in her room.She defended cent by cent her miserable money. After the end of the world, how do we begin again? essay Read the list of pros and cons on whether to drop the atomic bomb on Japan or not. Then, after reading each list of arguments, choose a side on if the US was justified (right) on dropping the bomb on Japan. Explain your answer using some of the arguments as your evidence. Why do you think Richard Nixon's campaign appealed to voters? What does primary productivity measure?O number of organisms in an ecosystemOrate of loss of energy in an ecosystemO weight of all organisms in an ecosystemorate at which an ecosystem produces chemical energy from sunlight 46g of a mineral contained 16g copper, 14g iron and 16g sulphur. Calculate the empiricalformula of the mineral. 12-3 ( x-8 ) simplify "He only helped because he wanted to impress susanis an example of internal attribution.Please select the best answer from the choices provided Where did the Gullah come from?O A. AfricaB. EuropeO c. MassachusettsO D. Rhode Island How do you explain this arrangement of fossils? What might have happened? Jane purchased a prepaid phone card for $30. Long distance calls cost 16 cents a minute using this card. Jane used bet card only once to make a long distance call. If the remaining credit on her card is $28.24, how many minutes did her call last? Find the area of the irregular figure. Round your answer to the nearest hundredth if necessary. is the square root of .036 a rational number? Which 1.0 M solution has the lowest pH?A. HCNB. H3PO4C. H2C2O4D. HCl Which of these statements about the Cuban Revolution are true? Check all that apply.Cubans wanted independence from Spain.Spain brutally ended the rebellion.War in Cuba was hurting American businesses. Analyze the diagram below and complete the instructions that follow.Find cos 45 When a star explodes as a supernova, the expanding gas can pass through the interstellar medium triggering...A.) an increase in variable star activity B.) formation of new starsC.) life to develop D.) additional supernovas How was cotton grown in Egypt & South Asia used to Britains economic advantage? Which of the following statements is NOT true?A) the corn that we grow today has not changed since prehistoric timesB) early humans planted seeds from corn plants with large kernels C) it took many generations for corn plants to change D) humans have selectively bred many different types of crops kadeem and quinn both drive 25 miles. Kadeem drives at a constant speed of 50 miles an hour. Quinn drives at a constant speed of 75 miles an hour. Who takes longer to drive the 25 miles? How much loner?