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4 years ago

Describe the 2 divisions of the Circulatory System, and discuss the components of each.

1 answer:

8 0

The cardiovascular system is a system of organs that facilitates the circulation of blood to all parts of the body. Blood is required to reach all living cells as the blood carries essential elements for cell life and regulation, such as nutrients, amino acids, electrolytes,oxygen and hormones. The blood also has a role in maintaining body temperature, fighting diseases, maintaining a stable pH and maintaining homeostasis. The blood also carries carbon dioxide away from the cells. The cardiovascular system consists of a network of arteries, veins and capillaries, as well as the heart, which acts to pump blood around the body, Blood leaves the heart via arteries and return via veins. The lymphatic system transports lymph, typically at a much slower rate than blood. The lymphatic system is an important part of the immune system. Unlike the cardiovascular system, the lymphatic system is not a closed system. The cardiovascular system processes a lot of blood each day through capillary filtration, which separates the blood cells from the plasma. Not all plasma is re-absorbed into the blood vessels, and the lymphatic system is responsible for returning the remaining plasma to the cardiovascular system. <span> </span>

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I need help on this question please!

kirill115 [55]

Explanation:

single stranded

4 0

3 years ago

Assume that the mother's genotype is AZ/az, and the father's genotype is Az/aZ, and the recombination rate is 10%. What are the

Varvara68 [4.7K]

Answer:

.45 from mom, .05 from dad

Explanation:

Given that:

the mother's genotype is AZ/az

i.e AZ = 50%

az = 50% (parental)

But we were also told that the recombination rate is 10% which will like wise affect the mother's genotype

So 100% -10% = 90 % of the mother's genotype

We have a new genotype

AZ = 45%

az = 45% (parental)

Therefore the probability of az gamete from the mother = $\frac{45}{100}$

= 0.45

Similarly; the genotype of the father is: Az/aZ

This is an heterozygous father who is diploid hence, there is a remarkable presence of two copies of each autosomal chromosome.

Az is the allele of the genes in one chromosomes and aZ is the allele of the genes in the other.

The gametes of this self cross are: Aa, AZ, az, zZ

Therefore; the recombinants are:

Since there are 10% recombinant; then

AZ = 5%

az = 5%

Therefore the probability of az gamete from the father = $\frac{5}{100}$

= .05

4 0

4 years ago

Hello people ~

gulaghasi [49]

Explanation:

$\longmapsto\: \purple{ \underline{ \boxed{\frak{ hell o \: mate }}}}$

Seed formation without fertilization in flowering plants involves the process of ---

A) APOMIXIS

4 0

2 years ago

Read 2 more answers

What does Macromolecules mean

Gre4nikov [31]

Answer:

Explanation:

A macromolecule is a molecule containing a very large number of atoms, such as a protein, nucleic acid, and more

3 0

3 years ago

Which of the following describes or represents a property exclusive to all "living" things? Question 3 options: They are able to

slavikrds [6]

Answer:

All living organisms reproduce sexually

Explanation:

Not all living organism reproduce sexually. Plant and animal are also living organism but not all plants reproduces sexually. We have sexual and asexual reproduction in plant

Plant reproduce sexually through the fusion of male and female gametes followed by fertilization to produce an offspring. Offspring produce through sexual reproduction have both maternal and paternal makeup.

Asexual reproduction includes binary fission, budding, grafting. It is the production of the exact kind of the parent plant, it does not require fertilization and the parents and the progeny are 100% identical.

3 0

3 years ago