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SpyIntel [72]
3 years ago
10

Which best explains the circulation system within mammals?

Biology
1 answer:
Oliga [24]3 years ago
6 0

The correct answer is that mammals use a closed, double loop , four chambered heart as a circulatory system of the body.

The circulatory system of mammals is closed system that consists of four chambers, two articles and two ventricles. The deoxygenated blood comes into the heart from one loop and the oxygenated blood from other loop from the heart is circulated to the whole body. This is called as double circulation.

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3. List two products derived from animals for each of the following areas.
lina2011 [118]

Answer:

Food - Cow & Rabbit

Fiber - Alpaca & Camel

Work - Donkey & Horse

By-products- Cow & Sheep

Research - Monkeys & Rats

Entertainment -​ Dogs, Cats, Hamsters ect.

6 0
3 years ago
How does the strength of a sound field 1 meter from its source compare with its strength 4 meters away?
Katarina [22]
Intensity is defined to be the power per unit area carried by a wave. Power is the rate at which energy is transferred by the wave. In equation form, intensity I is
I
=
P
A
I
=
P
A
, where P is the power through an area A. The SI unit for I is W/m2. The intensity of a sound wave is related to its amplitude squared by the following relationship:

I
=
(
Δ
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4 0
3 years ago
A phage is a virus that infects bacterial cells. A phage virus is shown above. What component of the phage virus is indicated by
Setler [38]

Answer:

<u>D) the nucleic acid (either DNA or RNA)</u>

<u />

Explanation:

Phages, or bacteriophages are viruses that infect bacteria.They have varying shapes, and sizes, and may contain one of two kinds of nucleic acid; these are RNA and DNA.

The nucleic acids  are made up of nucleotides. These are  genetic storage biomolecules made up of the monomers ribonucleic acid (RNA) deoxyribonucleic acid (DNA).

8 0
3 years ago
How are observation and experimentation related?
Dominik [7]
You can gather information from both actions.
4 0
3 years ago
How many calories are equivalent to 1 pound of body fat?
aksik [14]
<span>Because 3,500 calories equals about 1 pound (0.45 kilogram) of fat, you need to burn 3,500 calories more than you take in to lose 1 pound. So, in general, if you cut 500 calories from your typical diet each day, you'd lose about 1 pound a week (500 calories x 7 days = 3,500 calories).


Hope help!</span>
7 0
3 years ago
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