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Dafna11 [192]
3 years ago
14

Name and describe two infectious viruses and a body’s first defense against infections

Biology
1 answer:
anzhelika [568]3 years ago
4 0

Rhinoviruses and herpes simplex are just two common viruses out of the other thousands of them that the immune system has to protect the body against.

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Heterozygote advantage refers to the tendency for heterozygous individuals to have better fitness than homozygous individuals. T
ddd [48]

Answer:

False

Explanation:

Genetic variation is the difference in the sequence of DNA in the individuals of a population and a heterozygote has more genetic variation that homozygote person because heterozygote has two different alleles of a gene while homozygous individual have two same alleles.

Heterozygotes have advantage over homozygotes because it protects the individual from many genetical diseases and increase the genetic variation by increasing the gene pool in the population. So higher fitness results in more genetic variation in the population therefore the statement is false.

4 0
3 years ago
Read the scenario. Jake and Pari are completing a biology assignment. One of the questions asks them to determine the base amoun
postnew [5]

Answer:

There should be 10% thymine

Explanation:

DNA bases come in specific pairs. Guanine pairs up with cytosine and adenine pairs up with Thymine.

According to the problem the DNA sample was 40% cytosine and 40% guanine, so this is correct, there are equal amounts of cytosine and guanine. Now Thymine needs to have equal amounts as adenine, but adenine only has 10%.

If we match up the amount of adenine to thymine, we would have 15% adenine and 15% thymine, but that would excede 100%. So you need to match the thymine to adenine.

10% adenine + 10 % thymine + 40% cytosine + 40% guanine = 100%

4 0
3 years ago
What are two NATURAL effects of groundwater movement on the landscape?
Rudiy27

Answer:

I know you only need two, but here:

--Subsidence and sinkholes.

--Sinkholes and caverns.

--Waterfalls and rapids.

--Deltas and levees.

--Erosion and abrasion.

Explanation:

6 0
3 years ago
Two cells in the same organism differ only in the number of chloroplasts they contain. The first cell has multiple chloroplasts,
ICE Princess25 [194]

Answer:

Two cells in the same organism differ only in the number of chloroplasts they contain. The first cell has multiple chloroplasts, and the second cell has very few. What would most likely characterize these cells? The second cell would not be able to produce as much food because it could not capture sunlight

8 0
2 years ago
Help please? what traits do all organisms with no internal thermoregulation have?
sukhopar [10]

Answer:

The answer to the question is C ectothermy

Explanation:

The answer to the question is C ectothermy

The traits which all organisms with no internal thermoregulation have are called an Ectothermy. Ectothermy is an organism in which the inner behavioral heat sources are significant in the regulation of body temperature. This organism depends on their ecological heats source, which allows them to work at an efficient rate. Some of this organism stays in an area where temperatures are nearly constant.

5 0
3 years ago
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