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Brut [27]
3 years ago
8

Hypothesis A: If heart rate is related to caffeine intake, then coffee drinkers will have higher heart rates.

Biology
2 answers:
Tpy6a [65]3 years ago
4 0
Hypotheses B is more useful because it suggests a way to test the relationship between heart rate and caffeine intake.
Katen [24]3 years ago
3 0

Answer: D. Hypothesis B is more useful because it suggests a way to test the relationship between heart rate and caffeine intake.

Hypothesis A and B both are suggesting that caffeine intake is related to higher heart rate. But hypothesis B is proving it more certainly by suggesting the affects of caffeine intake on heart rate. As, heart rate of most people will be higher 30 minutes after they drink a cup of coffee is testifying the fact, that higher heart rate is related with caffeine intake.

Therefore, hypothesis B is more useful because it suggests a way to test the relationship between heart rate and caffeine intake.

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lubasha [3.4K]

Answer:

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Explanation:

7 0
3 years ago
At which stage would one be able to first distinguish a diploblastic embryo from a triploblastic embryo?A) fertilizationB) cleav
oee [108]

Answer:

Gastrulation.

Explanation:

Zygote is formed by the fusion of the male and female gamete. The zygote undergoes the process of cleavage to form the different embryonic stages of the offspring.

Gastrulation is the important process of the pre embryonic development. The blastula get multiply and rearranged to form the gastrula. The gsatrulation process includes the formation of three germ layers also known as triploblastic embryo. The three germ layers are ectoderm, endoderm and mesoderm.

Thus, the correct answer is option (C).

8 0
3 years ago
Explain how a shortage of water affects the health of your cells.
Serga [27]
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5 0
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Read 2 more answers
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Contact [7]

Answer:

passive transport and diffuision

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it  requires no energy from the cell. Examples include the diffusion of oxygen and carbon dioxide, osmosis of water, and facilitated diffusion. diffusion does not.

4 0
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What is the role of atp in generating a resting membrane potential?
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