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Otrada [13]
4 years ago
5

In how many different ways can 7 swimmers be lined up for a race? 5040 42 332 72

Biology
1 answer:
egoroff_w [7]4 years ago
6 0

Answer:

72

Explanation:

I have answered this question on its learning

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Formulating hypotheses – Propose a hypothesis to account for the data related to the cell life spans of the lining of the esopha
gayaneshka [121]

Answer:

Hypothesis: If mucus production in the submucosal layer of the esophagus is insufficient, cell longevity is affected, because it interferes with the quality of connective tissue.

Explanation:

In a scientific research the hypothesis is an assumption, a possibility that will justify the purpose of the scientific research and will help in the establishment of all the steps of this research, so that it is possible to determine if the hypothesis is true or false. In other words, we can say that the hypothesis must be formulated as an assumption, before the research that will prove it or not.

An example of a hypothesis about research on the longevity of cells that line the esophagus is: "If mucus production in the submucosal layer of the esophagus is insufficient, cell longevity is affected, because it interferes with the quality of connective tissue."

5 0
4 years ago
Which of the samples shown below are eukaryotic?
Studentka2010 [4]

Answer:

C) A, B, and D

Explanation:

You can see a nucleus in A, B, and D but not C

8 0
3 years ago
True or False?
Mumz [18]

Answer:

true

Explanation:

convection currents occur when a heated fluid expands, becoming less dense, and rises. The fluid then cools and contracts, becoming more dense, and sinks

heat go up, cold go down. they cycle.

8 0
3 years ago
Read 2 more answers
What is the topography like where the mid-ocean ridge is spreading apart?
Georgia [21]
A mid-ocean ridge is an underwater mountain system formed by plate tectonics. It consists of various mountains linked in chains, typically having a valley known as a rift running along its spine.
5 0
3 years ago
Does anybody know the answer to these?
-Dominant- [34]

Answer:

Answer is B if we have the same one

Explanation:

5 0
4 years ago
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