While antiviral treatments have drastically improved life expectancy and quality of life
for people living with Human Immunodeficiency Virus (HIV), preventing HIV infection
is still the primary goal.
The enormous genetic diversity of HIV is largely the result of its and it has made
it especially difficult to create a(n) against the virus.
Fhigh mutation rate; antibiotic
G high mutation rate; vaccine
Hlow mutation rate; antibiotic
)
low mutation rate; vaccine

Answer:

I looked at the picture in your other question and those are chromosomes, so it would be c.

Explanation:

I just did something similar for biology and it had the chromosomes labeled so I'm pretty sure I'm right

Answer:pensemos

Explanation:

Ajsjjs

Answer:

Mesozoic

Explanation:

The early jurassic is when it started to break

Answer:

How did the breakup of Pangaea affect land organisms during the Mesozoic Era? The breakup of Pangaea into Laurasia and Gondwanaland resulted in climate change. Only the animals that were able to adapt to the new climate conditions survived the mass extinction.

Explanation:

right on edg

False so false

Ik it cant be true because there are underwater volcanoes and the earths plates are constantly moving.

Answer:

The H.M.S. Challenger embarked from Portsmouth, England on December 21, 1872 and changed the course of scientific history. Physicists, chemists, and biologists collaborated with expert navigators to map the sea. This interdisciplinary spirit has continued to the present day. During the 4 year journey, the voyages circumnavigated the globe, sounded the ocean bottom to a depth of 26,850 feet, found many new species, and provided collections for scores of biologists.

C. Wyville Thomson led the expedition but died of exhaustion from the journey, which ended on May 24, 1876. The Challenger had zig-zagged around the globe and had visited every continent, including Antarctica.

The reports of the Challenger expedition were supervised by Sir John Murray, whose biological conclusions were of great importance to the later development of marine biology. He concluded, for example, that the deep-sea fauna was not "ancient," in that it did not resemble the faunas found in ancient fossil deposits.

Explanation:

Answer:

The H.M.S. Challenger changed the course of scientific history. The expeditions circumnavigated the world, sounded the ocean floor to a depth of 26,850 feet. Itdiscovered numerous new species, and supplied collections for hundreds of researchers over their four-year adventure. The Challenger was a corvette, a military ship that went by sail but had auxiliary steam power to help steady the ship during sampling. The expedition was commanded by C. Wyville Thomson, who died of fatigue on May 24, 1876, at the end of the voyage. The Challenger has zig-zagged its way around the world, stopping at every continent except Antarctica. Sir John Murray oversaw the Challenger expedition's reports, and his biological results were crucial to the eventual development of marine biology. For example, he decided that the deep-sea fauna was not "old" since it did not reflect faunas found in ancient fossil beds.

Explanation:

Here's a shorter paraphrased response

Answer:

1 st question ) Lack of food and oxygen and the presence of wastes limit their growth.

Answer: 1. cell wall, membrane, and overall volume are enlarged; chromosomes are duplicated. 2. septum begins to form and chromosomes are pulled to opposite ends of the cell; components are randomly divided. 3. septum is completely formed and the cell membrane begins to patch itself. 4. daughter cells are divided.

Explanation: pls mark me brainliest

Answer:

C. Most mammals are secondary consumers. Most invertebrates are primary consumers.

Explanation:

Net production efficiency (NPE) refers to how efficient an organism at one trophic level is in utilizing and transferring energy to the next trophic level. Consumer organisms obtain energy (from biomass) when they feed on other organisms. They then use this energy for their metabolic activities and transfer the rest when eaten or fed on.

The net production efficiency decreases with increasing trophic level because higher organisms use more energy than lower ones. In this case, invertebrates use energy they obtained lesser or more efficiently than mammals, hence, making them have a HIGHER net production efficiency than mammals. Therefore, invertebrates are mostly primary consumers and utilize energy lesser than mammals which are mostly SECONDARY CONSUMERS.

Answer:

Matter in the solid state maintains a fixed volume and shape and  Matter in the liquid state maintains a fixed volume, but has a variable shape that adapts to fit its container

Explanation:

Answer:

Explanation:

this phospholipid layer has 2 layers

hydrophilic head which can react with water " soluble in water "

and hydroPHOBIC tail which can't interact with water  " insoluble in water"

Answer:

it is necessary for cells to remain small in size because they need to keep a surface area to volume ratio that allows for adequate intake of nutrients and exchanging materials between the inside and outside of cells.

Cells are small so they can have an efficient surface area to volume ratio. This is going to allow the cell to easily excrete waste product.

That is why the cell needs to be small. The smaller it is, the larger the surface area to volume ratio is.

Answer:

Without oxygen, pyruvate is converted to lactic acid in animals or ethanol in plants and yeast. It produces only about 10% of the energy released in the complete oxidation of glucose. Anaerobic respiration in humans takes place when muscle undergoes extreme contraction as in vigorous exercise

Explanation:

Hopefully this helped, if not HMU and I will try my best to get u a better answer!

Chlorophyll is a light-absorbing pigment.

Chlorophyll, the inexperienced pigment commonplace to all photosynthetic cells, absorbs all wavelengths of seen mild besides inexperienced, which it displays. That is why vegetation appears inexperienced to us.

Chlorophyll, the primary pigment utilized in photosynthesis, reflects inexperienced mild and absorbs pink and blue light most strongly. In flowers, photosynthesis takes region in chloroplasts, which contain chlorophyll.

Learn more about chlorophyll here https://brainly.com/question/3529377

#SPJ2

Answer:

An Interphase is made up of of G1 phase,S phase,andG2 phase.   So i believe the answe would be B!

Answer:

climate, salt water, tidal fluctuation and soil type

Explanation:

Climate, salt water, tidal fluctuation and soil type are the limiting factors for the mangrove wetland community. mangrove plants only present on wetland regions where the climate is humid. It also grow on the land where saline soil is found but excess saline conditions reduces its normal growth and development. For better growth of mangrove plants, soils made up of sand, silt and clay which are rich in organic matter.

Answer: B- severity of hurricanes

Explanation:

Answer:

What percent of DNA is cytosine?

Together, adenine and thymine compose 70% of the segment. This means that 30% of the section is composed of guanine-cytosine pairs. Since these two bases will be equal in quantity, 15% of the DNA section will be cytosine bases.

Explanation:

Answer:

Z

Explanation:

Because it includes various other ecosystems

Answer:

914.946

Explanation:

ahm Im not best math but I have learned this subjects I hope my answer is correct

Answer:

Increases reaction rate by lowring its activation energy.

Explanation:

i.e If the chemical reaction completes in 5 hours it means that reaction's activation energy is very high.This factor causes decrease in rate of reaction so to increase reaction rate and to decrease activation energy enzymes or catalyst are added so now reaction will be completed in half hour.This is the importance of enzymes/catalysts.Enzyme and catalyst cann't start reaction but they increase rate of reaction and decrease time to reach equillibrium.

Answer:

100%

100%

50%

100%

75%

Explanation:

dont use the exact words so u can avoid plagerism lol

Complete dominance occurs when the dominant allele completely masks the recessive allele in heter0zyg0us individuals. 1) 100% / 2) no chance / 3) 50% / 4) no chance / 5) 1:2:1.

------------------------------------------------------------

Available data:

→ Six diallelic genes code for six different traits.

→ All genes express complete dominance, meaning that the dominant allele hides the expression of the recessive one.

→ Beyonce ⇒ ee ww Dd Hh cc Bb

→ Bruno Mars ⇒ ee ww dd Hh CC Bb

→ Cross:  Beyonce x Bruno Mars

****************************

1) Earlobes

Parentals)   ee   x   ee

Gametes)   e   e    e    e

Punnett square)    e         e

                     e     ee       ee

                     e     ee       ee

F1) 100% of the progeny is expected to have unattached earlobes, ee.

******************

2) hairline

Parentals)   ww   x   ww

Gametes)  w   w    w    w

Punnett square)    w        w

                     w     ww       ww

                     w     ww       ww

F1) 100% of the progeny is expected to have straight hairline, ww.

     There is no chance for their children to have widow’s peak because both of them are h0m0zyg0us recessive for the trait.

***********************

3) Dimples

Parentals)   Dd   x   dd

Gametes)  D   d     d    d

Punnett square)    D        d

                     d     Dd       dd

                     d     Dd      dd

F1) 2/4 = 1/2 = 50% of the progeny is expected to have dimples, dd

    2/4 = 1/2 = 50% of the progeny is expected to have no dimples, Dd.

***********************

4) Chin

Parentals)   CC   x   cc

Gametes)   C  C     c    c    

Punnett square)    C         C

                     c      Cc       Cc

                     c      Cc       Cc

F1) 100% of the progeny is expected to have cleft chin, Cc

     There is no chance for their children to have smooth chin because one of them is h0m0zyg0us dominant and the other one is h0m0zyg0us recessive for the trait.

The whole porgeny is expected to be heter0zyg0us, Cc, expressing cleft chin.

***********************

5) Eyes

Parentals)   Bb   x   Bb

Gametes)   B   b     B    b

Punnett square)    B         b

                     B      BB      Bb

                     b      Bb       bb

F1)   3/4 = 75% of the progeny is expected to have brown eyes, BB + Bb

       1/4 = 25% of the progeny is expected to have blue eyes, bb

-----------------------------------------------

Related link: https://brainly.com/question/24675464?referrer=searchResults

Answer:

OH LOL I DID THIS IN 7TH GRADE

Explanation:

so if i remember when the trees where white the pepper moths that where white survived more often that the black ones, then when the industrial war came the trees where covered in ash, so the white moths survived

MY SENTENCE

It shows how a change in an environment can effect a species natural selection, for example the white moths survived more than the black moths so the reproduced while the black moths where eaten by predator's, then when the environment changed and favored the black moths they survived and reproduced while the white moth got picked off by predators.

Hope this helped mate :>

Answer:

transfer RNA

Translation occurs on ribosomes and involves tRNA (transfer RNA), a form of RNA that brings amino acids to the ribosomes to be assembled into proteins. Each mRNA condon must join with the anticondon of the proper tRNA

Answer:

The answer is tRNA

Explanation:

edge2021

Answer:

Granites and rhyolites consist predominantly of quartz and potash feldspar; gabbros and basalts, predominantly of pyroxene and plagioclase feldspar. Other rock types have intermediate mineral compositions.

Explanation:

It is made up of sodium feldspar, potassium feldspar, and coarse quartz grains (10–50%). More than 80% of the rock is composed of these minerals.

Granite is a pale-colored plutonic rock that is mostly found in mountainous regions of the continental crust.

Quartz and potash feldspar make up the majority of granites and rhyolites, whereas pyroxene and plagioclase feldspar make up the majority of gabbros and basalts. Other types of rocks contain mineral compositions that are in between.

Magma, which is a molten substance that flows and hardens underground while slowly cooling, is the source of intrusive rocks.

Therefore, the majority of the continental crust is composed of granite, the most common kind of igneous rock, intrusive igneous rock is granite.

Learn more about granite, here:

https://brainly.com/question/28085590

#SPJ6

Answer:

in the cytoplasm of prokaryotes and in the nucleus of eukaryotes.

Explanation:

this only occurs in replication of the DNA

Answer:

This question is incomplete

Explanation:

This question is incomplete. However, there is a distinct relationship between the endoplasmic reticulum and the plasma membrane. The endoplasmic reticulum are responsible for protein synthesis which are used by the remaining organelles (including the membrane) to function. The endoplasmic reticulum is also involved in lipid synthesis and has a network of tubules (which are used for carrying materials throughout the cell) that can deliver lipids into the cell membrane. These lipids are responsible for the semi-permeability function of the cell/plasma membrane.

Answer:

needed

Explanation:

its pretty mandatory lol

Answer:

The endocrine system is responsible for being the chemical messenger of the body and controlling metabolism and respiration.