What are CD4 cells?
a. T-cells that have a CD4 receptor
b. B-cells that have a glycoprotein receptor
c. HIV antigens
d. red blood cells

Answers

Answer 1

Answer:

I'm pretty sure it is b because CD4 cells are the cells that are a glycoprotein

Explanation:


Related Questions

What is a subduction zone and a transform boundary?

Answers

a transform fault or transform boundary is a fault along a plate boundary where the motion is predominantly horizontal. it ends abruptly where it connects to another plate boundary, either another transform, a spreading ridge, or a subduction zone.

I NEED HELP ASSAP


how can you tell whether two magnets will attract eachother, repel eachother, or both

plz explain in a few sentences​

Answers

Answer:

Explanation:

there is a positive side and a negitive side to magnets two of the same side of the magnet will repel oppisites will attract

positive+positive=repel

positive+negitive=atract

Answer:

attract: when two magnets will attract, S and N will be facing each other

repel: when two magnets will repel, S and S or N and N will face each other

both: when two magnets will attract and repel, the magnets won't be placed in the same way. N will be facing the middle of both S and N or S will be facing the middle of N and S

Explanation:

this is what i learned i hope it's right if not i didn't say nothing

what is the speed of a car that travels 485 meters in 15 seconds

Answers

The answer would be C. 32.3 m/s

How can humans reduce
the impact of a storm surge?

Answers

Explanation:

reducing the impact Global climate change may result in increased storm surge flooding in some areas, through intensification of the cyclones driving the storm surges and as a result of sea level rise. Mangroves can reduce storm surge water levels by slowing the flow of water and reducing surface waves.

In the oceans on either side of the Isthmus of Panama are 30 species of snapping shrimp, 15 species on the Pacific side and 15 different species ch the Atlantic sid. See different water depths. Morphological and genetic data show that Atlantic and Pacific species that live at similar depths are sister species. Geological evidence indicates that the Isthmus of Panama started rising about 10 million years ago and the oceans were completely separated by the stimus about 3 million years ago. If the geological evidence has been misinterpreted and the isthmus had formed very rapidly in less than 1,000 years), which of the following predictions is most likely?
A. greater percentage of difference in DNA sequences between sister species that inhabit deep water than between sister species that inhabt stalow water
B. greater percentage of difference in DNA sequences between sister species that inhabit shallow water than between sister species that inhabit deep water
C. similar percentages of difference in DNA sequences between all pairs of sister species
D. greater percentage of difference in DNA sequences between Atlantic species than between Pacific species

Answers

Answer:

The answer is "Choice A".

Explanation:

The Panama isthmus is indeed a patch of land which separates its sea from its Atlantic ocean to The pacific in two halves. The Panama Isthmus allows spreading the seafood applicable state, although due to geographical barrier, the very same turtle species were isolated. Its deep squirrels of liquid are diverged quite early as being against shallow water shrimps which are characterized by the rising of the Jamaica isthmus, first off the island can be crossed until it was closed through shallow water prawns and shallow-water animals. If Panama's black sea was established less than 1000 years, it has a greater effect on deepwater shrimp and very low water lobsters. Consequently, in water depth prawns, a disparity in hereditary degree (DNA) is higher than in shallow species. The deep waters have been affected earlier so the variation in DNA sequences throughout all sister species will not be the same.

Mitosis occurs in certain types of eukaryotic cells called:
A. Gametes
B. Somatic cells
C. Sex cells
D. Egg and sperm cell

Answers

Answer: somatic cells

Explanation: the other three don’t cause mitosis, instead cause meiosis

Which best describes a recessive allele?

A. Always inherited from a parent when a dominant allele is inherited from the other parent.
B. Never inherited from a parent when a dominant allele is inherited from the other parent.
C. Only determines phenotype when a dominant allele for the same trait is present.
D. Does not determine phenotype when a dominant allele for the same trait is present.

Answers

Answer:

B!

Explanation:

A recessive allele can't be shown in the child unless there is no dominant allele.

Hope this helps, please mark me brainliest if it does! :)

Answer:option d

Explanation:

because ressesive alleles is not exhibited when a dominant allele is present. it may help to find genotype but not phenotype.

Number 8. was colorblind just like his father: Where did the son at 8 get his allele for colorblindness?

Answers

Answer:

son 8 inherited it from her.

Explanation:

Given that Son 8's mother is a carrier of the blindness allele

Assuming that the father is colorblind due to a genetic mutation, there are a few possible scenarios for how the son inherited the allele for colorblindness.

What is genetic inheritance?

Genetic inheritance is the study of how certain inherited traits are passed down from generation to generation.

Assuming the father is colorblind due to a genetic mutation, there are a few possibilities for how the son inherited the colorblind allele:

His father's colorblindness allele was passed down to his son. The son in this case inherited the mutation from his father.The mother carries the colorblindness allele, which she passed on to her son. In this case, the son inherited the mutation from his mother, who is not colorblind but carries the gene.The colorblindness mutation is present in both the mother and father, and the son received one copy from each parent. This is a less likely scenario, but it is possible if both parents carry the gene.

Thus, in any of these scenarios, the son inherited the allele for colorblindness from one or both of his parents.

For more details regarding inheritance, visit:

https://brainly.com/question/29679846

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What characteristics make dna a polymer ?

Answers

First of all DNA is a polymer made from four different monomers , called nucleotides . These join together in different combinations to make long strands. In a DNA molecule , two strands wrap around each other to form a double helix structure.

2. How does a generator create current?

Answers

It is important to understand that a generator does not actually 'create' electrical energy. ... This movement creates a voltage difference between the two ends of the wire or electrical conductor, which in turn causes the electric charges to flow, thus generating electric current.

Which of the following is NOT an ecosystem
service that forests provide?
habitat for wildlife
reduce soil erosion
lumber
carbon sink
all of the choices are ecosystem services

Answers

Answer:

All of the choices are ecosystem services.

Explanation:

Trees' roots hold soil down so it doesn't move everywhere and they recycle carbon into oxygen. In addition, they provide us wood and beautiful wildlife!

Have a great day!

The ecosystem services are all the benefits provided by the ecosystem to human. Otion A) habitat for wildlife is not an ecosystem service.

What are the Ecosystem Services?

When talking about ecosystem services, we are referring to the goods and services offered by ecosystems to human populations

There are different types of ecosystemic services:

Provision or supply:

These are the products obtained by nature to be used or consumed, directly or with previous processing.

Among them, we can mention food, clear fresh-water, fertile soils, geotic materials, raw materials (used for clothing, construction), renewable fuels, biochemical compounds, pharmacological/medicinal resources, and others.

Regulation:

Refers to ecological processes that improve life.

Among others, we might mention climate regulation, CO₂ absorption, water purification, air purification, erosion control, natural disaster avoidance such as flooding, soil formation and fertility maintenance, nutrient cycling, waste recycling, pests/plagues control, etc.

Cultural:

Refers to the benefits that are not material.

Ecosystems also provide a recreational place or area to spend time, learn. They are a spiritual/religious space, a source of inspiration. They are considered to be cultural patrimony and the source of scientific knowledge.

Among th options, the one that is not a ecosystemic service is option A) habitat for

You can learn more about ecosystemic services at:

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.

describe the structure of​

Answers

Answer:

Of what?

Explanation:

Other Questions
Read this excerpt from The Riddle of the Rosetta Stone by James Cross Giblin.Between the time Champollion's books appeared and the end of the nineteenth century, thousands of rolls of papyrus and copies of temple and tomb inscriptions were brought to Europe and America. There scholars, using the deciphering methods Champollion had pioneered, traced the entire history of writing in Egypt. They discovered it had begun about 3100 B.C. when images of important people were first accompanied by hieroglyphs of their names or titles. By 2500 B.C. complete sentences began to appear on tomb inscriptions, along with lists of offerings to the Egyptian gods.Which answer choice best states a cause-and-effect relationship from the excerpt?Cause: Champollion published books about his deciphering methods.Effect: Scholars were able to trace the history of writing in Egypt.Cause: Thousands of rolls of papyrus and copies of temple and tomb inscriptions were brought to Europe and America.Effect: Champollion published books about his deciphering methods.Cause: Scholars discovered that writing in Egypt began in about 3100 BCE.Effect: Images of important people were first accompanied by hieroglyphs of their names or titles.Cause: Images of important people were first accompanied by hieroglyphs of their names or titles in around 3100 BCE.Effect: Complete sentences had begun to appear on tomb inscriptions by 2500 BCE. x to the third power =8/27 List and fully describe at least 3 examples of input devices and how they are applied in the real world. 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Wait- I can use this as an opportunity but I need to hide my ears a butler's outfit won't work) Jai- *looks back at maid uniform* ugh oh well *puts on a maid's long dress and hides his tail. he then hides his ears under his bonnet successfully hiding them* (Well I dont know if that believable but it's worth a try) *folds up clothes and shoves them under the wardrobe* Servant- *walks in* Oh I'm so sorry maam I'll leave I didnt see anyone walk in Jai- *in slightly higher voice that sounds like a womans* your just fine hon, I'm finished I'll go instead (That was close) *bows a little* Jai- *walks out quickly* (WOW I just stepped out of the servants' quarters and the castle is this expensive looking) *looks around and notices a table with a vase on it *Picks up and puts vase down* (So now I need to just find the kings room) Jai- *Walks up and down the halls till he spots a guard by a door* (ill just pretend that I belong here) Hello sir may I enter I'd like to tidy up Guard- um yes maam *slightly stuttering* *opens door* Jai- Thank you sir *Bows and smiles slightly* (I can't believe that this is working so well) *Walks in and looks Around* *Starts to notice its a bedroom* (wait- who's room would need guarding) *gets startled as he hears someone talking outside* tries to quickly put down the paper he was looking at Claude- Excuse me *he says softly* Guard- *he doesn't speak but instead opens the door and look down* Claude- Thank you (Why doesn't anyone ever speak to me) *walks in and notices a maid looking at him like a deer in front of a carriage* Jai- *Staring kind of blankly* (THIS IS THE PRINCES ROOM!?! 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