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AlexFokin [52]
3 years ago
10

Which job must enzymes do before replication can begin?

Biology
1 answer:
Scorpion4ik [409]3 years ago
4 0

Answer:

Before they replicate the two DNA strands need to separate from each other.

Explanation:

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gayaneshka [121]
The mitochondria! (Which is the powerhouse of the cell)
3 0
3 years ago
A square jaw is recessive to a round jaw (dominant), It is possible for two parents with a square jaw to have a child with a rou
sukhopar [10]
No, it would not be possible since both alleles in the genotype are recessive. If the alleles were xx for square jaws, then
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6 0
2 years ago
The human infant spends about half of its sleep time in rem. What is the understanding of why this is the case?
Molodets [167]

This occurs because REM sleep may provide at least part of the stimulation necessary to correctly develope the immature brain of infants.

REM sleep provides the electrical activity necessary to establish neural connections that include the  development of synapses in the brain. These neurological process enables development of sensory, motor, learning and memory system.


4 0
3 years ago
Which of the following is an abiotic factor in the ecosystem?
Naily [24]

---- *Well, since there is really no specific ecosystem that was asked about in the question, I will just list some common and basic abiotic factors found throughout most ecosystems (maybe you can match this with the ecosystem you are talking about).

---------------------------------------------------------------------------------------------------------

Abiotic factors: nonliving parts of an ecosystem

Some abiotic factors include: ROCKS, SOIL, AIR, SUN, WATER, ETC.

7 0
2 years ago
An age pyramid with a broad base that quickly slopes up to a narrow top would be indicative of ________.
kiruha [24]

Answer:

A. a developing nation

Explanation:

Age pyramids are the age structure diagrams that represent the number and proportion of people at each age in a population. The base of the age pyramids represents the population in pre-reproductive age which is from 0 to 10 years. The overall shape of an age pyramid indicates if the population is increasing, stationary, or shrinking.

The age structure diagram for a developing nation has a broad base that tapers quickly towards the top. This means that a larger percentage of the population is in the pre-reproductive age group and reproductive age group with a smaller percentage of the population in the post-reproductive age. These countries have a great chance of future population growth.

3 0
3 years ago
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