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3 years ago

Diffusion occurs because

Biology

1 answer:

Ket [755]3 years ago

3 0

Answer:

Diffusion. ... Diffusion is the movement of molecules from a region of higher concentration to one of lower concentration. This movement occurs because the molecules are constantly colliding with one another. The net movement of the molecules is away from the region of high concentration to the region of low concentration.

Explanation:

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A researcher is interested in finding out if the amount of amylase, a digestive enzyme found in saliva responsible for digesting

kogti [31]

The answer is Take consistent amounts of saliva samples from a number of people who have not eaten in 8 hours and measure the quantity of amylase in each sample.

First, the researcher needs to know the quantity of amylase in the same amount of saliva. Thus the amount must be consistent and not varying.
Next, people must not eat in 8 hours, so they are all in the same condition at the moment of collecting saliva. If some eat immediately before the sample collecting while some eat 8 hours before, the content of their saliva will be different.
For the correct results, all conditions must be the same.

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3 years ago

Read 2 more answers

What is primary Succession?

Anna71 [15]

Answer:

Primary succession is one of two types of biological and ecological succession of plant life, occurring in an environment in which new substrate devoid of vegetation and other organisms usually lacking soil, such as a lava flow or area left from retreated glacier, is deposited.

Explanation:

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3 years ago

Hitchhiker's thumb (H) is dominant to no hitchhiker's thumb (h). A woman who does not have hitchhiker's thumb marries a man who

kakasveta [241]

Answer:

Genotypic ratio of offsprings will be: 1 (Hh) : 1 (hh)

Explanation:

This question involves a single gene coding for the possession or not of Hitchhiker's thumb in humans. The allele that codes for Hitchhiker's thumb (H) is dominant over the allele for no hitchhiker's thumb (h).

Based on this question, if woman who does not have hitchhiker's thumb (hh) marries a man who is heterozygous for hitchhiker's thumb (Hh) i.e. hh × Hh, the following gametes will be produced by each parent:

hh - h and h

Hh - H and h

Using these gametes in a punnet square (see attached image), the offsprings with the following genotypic ratio will be likely produced:

1 (Hh) : 1 (hh)

N.B:

- Two (2) of them were Hh i.e. with Hitchhiker's thumb

- The other two were hh i.e. no hitchhiker's thumb.

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2 years ago

What is pyruvate and what does it mean

Maslowich

It is a salt or ester of pyruvic acid. Here is an image of what it is...

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Formula: C3H4O3
Molar mass: 88.06 g/mol
IUPAC ID: 2-oxopropanoic acid
Density: 1.25 g/cm³
Related keto-acids, carboxylic acids: acetic acid; glyoxylic acid; oxalic acid; propionic acid; acetoacetic acidAcidity (pKa): 2.50

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3 years ago

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Order the following statements to illustrate the correct cascade of events that occurs after ligand binding of G-protein coupled

professor190 [17]

Answer:

gdfgdfgdfg

Explanation:

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3 years ago