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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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Passive transport is the act of a molecule moving freely down its concentration gradient. true or false
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True in passive transport molecules move along concentration gradient from high to low concentration
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The life cycle of a white wagtail
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Genetic variety is one factor required for a population to adapt to the environment. Which is true? NO LINK ANSWERS!! pic attach
frez [133]
Genetic variation results in different forms, or alleles?, of genes. For example, if we look at eye colour, people with blue eyes have one allele of the gene for eye colour, whereas people with brown eyes will have a different allele of the gene
8 0
3 years ago
Black coffee has a pH around 5; hand soap has a pH of 10. How many times more acidic is coffee relative
Anon25 [30]

Answer:

\boxed {\boxed {\sf 10^5 \ or \ 100,000 \ times \ more \ acidic}}

Explanation:

The pH scale stands for the power or potential of hydrogen. It measures how acidic or basic a solution based on the concentration of hydrogen ions and a scale from 1 to 14.

This scale is unique because it is logarithmic. So, every time the pH changes by 1 on the scale, the actual concentration of the solution increases or decreases by a tenfold.

So, a solution with a pH of 7 is ten times more acidic than a solution with a pH of 8. This can be translated to:

10^ {difference \ in \ pH}

The black coffee has a pH of 5 and the hand soap has a pH of 10. We want to find how many times more acidic coffee is, so we subtract 5 from 10 and get 5. The difference in pH is 5.

10^5=100,000

Coffee is <u>10⁵ or 100,000 times more acidic than hand soap.</u>

3 0
2 years ago
The total energy of motion in the particles of a substance; heat energy
Keith_Richards [23]

Answer:

thermal energy

insulator

Explanation:

i dont know if i have to choose only one or more

3 0
3 years ago
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