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baherus [9]
3 years ago
9

How do enzymes speed up reactions?

Biology
2 answers:
liq [111]3 years ago
5 0
The answer is A because I did this before
Gekata [30.6K]3 years ago
3 0

Answer:

A. by lowering the activation energy.

Explanation:

Biological catalyst is known as enzymes. If the activation energy for a reaction is low then the rate would be faster.

Hope this helps, thank you :) !!

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If cleansing beneath the foreskin is inadequate, a voided urine specimen may contain _____. a. Escherichia coli b. Staphylococcu
Mandarinka [93]

Answer:

The correct answer is - Mycobacterium smegmatis.

Explanation:

Mycobacterium smegmatis is an acid-fast bacterial that present almost everywhere but it can also be found under the foreskin that has a substance called smegma.

If a urine sample is collected without cleansing adequately under foreskin, this ample may contain this bacteria in the sample. One should clean the beneath the foreskin properly to prevent the sample to get voided.

7 0
3 years ago
PLEASE HELP PLEASE <br> What is true about Smooth muscle cells?
tekilochka [14]

Smooth muscle, also called involuntary muscle, muscle that shows no cross stripes under microscopic magnification. It consists of narrow spindle-shaped cells with a single, centrally located nucleus. Smooth muscle tissue, unlike striated muscle, contracts slowly and automatically.
6 0
3 years ago
In recent years, there has been controversy among biologists about whether Neanderthals should be placed within the same species
Natali [406]

Answer:

The correct answer would be - biological species concept.

Explanation:

The biological species concept is a concept of speciation or how a species forms in nature. According to this, a species is the group of the population that can naturally or potentially interbreed with each other, not on the basis of their physical similarities or habitats.

The physical appearance could be useful as recognizing a species but not defining it. As neanderthals show very little or no gene flow with a modern human it means they do not belong to the same species as modern homo sapiens.

Thus, the correct answer is- biological species concept.

4 0
3 years ago
Scientists use the light year to describe the relationship between object in space. what does light year measure?
jekas [21]

Answer:

The answer is B

Explanation:

The definition of a light year is the unit of astronomical distance, though it is called a light year it is actually a measurement of distance, so the answer, "the  time it takes light to travel 1 million km is the correct answer.

8 0
3 years ago
I need help on number 5!
andrey2020 [161]

i guess it is m1v1=m2v2 since m2 is 1.5 v2 is 250*10^-3 l and m1 is 10 then you will need 37.5 ml of the stock your answer is 37.5 milli liter i guess

3 0
3 years ago
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