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3 years ago

Science can best be defined as

Biology

1 answer:

Lorico [155]3 years ago

8 0

Answer:

b.the construction of testable explanations and predictions about the natural world through the use of evidence.

Explanation:

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If your total blood volume is 5 L the volume in your veins and venules is:______a. 3Lb. 3Lc. 1Ld. 5L

Oksi-84 [34.3K]

Answer:

A and B

Explanation:

That's about 3L because at any given time the viens hold about 70% of blood because they have thinner and less rigid walls so 0.7*5 is about 3L

3 0

4 years ago

What happens when you touch a poison dart frog?

Luda [366]

The venom of a poison dart frog has the special ability of being quiet permeable through the skin. A dart frog's poison can travel up the nerves, into the brain leading from tingling to pain, to paralysis, to coma, and then death. Its agonising.

8 0

4 years ago

Which answer places the following events in proper order for pulmonary ventilation?

MArishka [77]

Answer:

The sequence is b, a, d, c.

Explanation:

Pulmonary ventilation may be defined as be defined as the simple process of intake of oxygen and exhale of carbon dioxide known as breathing. Diaphragm contracts during inspiration and relax during exhalation.

The pulomonary ventilation occurs when the skeletal muscle contraction occur by the stimulation from the brainstem nuclei. This leads to the changes in the volume of the thoracic cavity. The thorax changes its shape by contraction and relaxation, this leads to the pressure change. Then air flows down the pressure gradient.

Thus, the correct sequence is b, a, d, c.

6 0

3 years ago

What caused earth to devolep layers as it cooled

Gwar [14]

Answer:

tgwhshehsh hshhdhdhrh

8 0

4 years ago

Cystic fibrosis is an autosomal recessive disorder. In one population, the frequency of affected individuals (A 2 A 2) is 0.0004

Simora [160]

Hardy Weinberg Equilibrium

Explanation:

Hardy Weinberg Equilibrium formula for allelic frequency is: $p+q=1$

Hardy Weinberg Equilibrium formula for genotypic frequency is: $p^2+q^2+2pq=1$

Here, $p$ =frequency of dominant allele

$q$ =frequency of recessive allele

$p^2$ =frequency of dominant genotype

$q^2$ =frequency of recessive genotype

$2pq$ =frequency of heterozygous genotype

frequency of affected individuals=0.0004(given)

here,affected individuals means the one's having Cystic Fibrosis and since it is recessive disease so we can write frequency of recessive genotype as: $q^2$ =0.0004

If $q^2$ =0.0004 $q$ will be 0.02;frequency of recessive allele will be 0.02

Using the formula $p+q=1$

$p+0.02=1\\p=1-0.02=0.98$

hence,frequency of dominant allele will be 0.98

Frequency of dominant genotype will be $p^2=(0.98)^2=0.9604$
Frequency of heterozygous genotype will be $2pq=2*0.98*0.02=0.0392$

7 0

4 years ago