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PolarNik [594]
4 years ago
7

Which describes how blood can be protective in nature?

Biology
2 answers:
Lubov Fominskaja [6]4 years ago
7 0
The answer is <span>B. by carrying cells that defend the body from foreign materials.

The blood is not able neither to form a protective </span>layer within blood vessels, nor to secrete oil that destroys foreign materials, nor to produce acid that kills foreign materials. <span>
But, blood does carry s</span>ome types of leukocytes (white blood cells) that defend the body from foreign materials. They fight germs (viruses and bacteria) by producing<span> antibodies. Antibodies are special proteins that recognize special molecules on the surface of the foreign cells. Attaching the antibodies to the antigens helps the body destroy or neutralize foreign materials. That's why when a person has an infection, his leukocyte count in the blood is much higher.</span>
Daniel [21]4 years ago
6 0

Answer:

The correct answer is b!

Explanation:

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In this Punnett square used to predict genetic crosses, RR represents the _________ of the organism.A) appearance B) chromosomes
masha68 [24]

Answer:

Genotype

Explanation:

A genotype is represented by two letters, called alleles, and describes the genes of an organism. Phenotype means the physical characterisitics of an organism. Chromosomes and appearance are irrelevant to this question. Hope it helps :)

5 0
3 years ago
Read 2 more answers
Chromosome.
Mashcka [7]

Answer:

1. x chromosome

2.males

3.one X and one Y chromosome.

4. two X chromosomes

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6.Females with one copy of the mutated gene are carriers. X-linked inheritance means that the gene causing the trait or the disorder is located on the X chromosome. Females have two X chromosomes while males have one X and one Y chromosome.

Explanation:

4 0
3 years ago
A brown-eyed man with a blue-eyed mother marries a brown-eyed woman with a blue-eyed father. What is the probability that their
almond37 [142]

This is based on my assumption that brown is dominant over blue.

Since both parent have parents who are homo_zygous recessive, this tells us that both parents will be hetero_zygous.

When you cross two hetero_zygous parents, it can produce these genotypic and phenotypic ratios:

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2 years ago
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Answer:

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One example of this is the water cycle. More water is never added or taken from the world, it is just reused. First, water starts in some body of water and then evaporates into the air. Then, the water falls back to Earth as precipitation.

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3 years ago
What is the essential feature of science that makes it different from other ways of understanding the natural world?
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3 years ago
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