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1 year ago

The Greek scientist Galen theorized that:

Biology

2 answers:

dimulka [17.4K]1 year ago

6 0

Answer:

A. Food was turned into blood, and when it reached the heart it was mixed with air to make 'spirit.'

Explanation:

Galen believed a theory of pneuma. That is, he believed that blood contains "vital spirits" released into it by the brain.

Svetllana [295]1 year ago

5 0

The answer is A. food was turned into blood

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A marine ecologist counts the number of crabs in three different intertidal regions that are each two hectares. The crab counts

romanna [79]

Answer:

Density is nearly 3 cabs per hectare

Explanation:

Given -

There are three three intertidal regions.

Area of each intertidal region is $2$ hectares.

Number of crab in the intertidal regions are as follows -

Intertidal region I - 7

Intertidal region I - 2

Intertidal region I - 6

Sum of crabs in all three regions is equal to

$7 + 2+ 6\\= 15$

Total area of all three intertidal regions is equal to

$2 + 2+ 2\\= 6$ hectares

Now density per hectare is equal to total population of crab divided by total area of all the three intertidal regions

Density $= \frac{15}{6} \\= 2.5$

Density is nearly 3 cabs per hectare

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2 years ago

A student wants to answer the question "Does adding calcium powder to soil make pea plants grow faster?" She adds calcium powder

attashe74 [19]

Answer: the correct answer is A) All plants should be the same age and health and be given equal amounts of water and sunlight.

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3 years ago

Qué tipo de nutrientes proporciona la planta de vid a los seres que la consumen

zloy xaker [14]

Answer:

I don't know what you said

Explanation:

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2 years ago

What affect would a decrease in primary consumers have on the a- p- e- x- p- r- e- d- a- t- o- r?

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Explanation:

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2 years ago

Read 2 more answers

Select the correct answer.

Aliun [14]

The term is called a theory.

In scientific investigation, a theory is a well substantiated explanation of how a particular phenomenon works based on the set of facts which had been repeatedly confirmed through observations and experiments. A scientific theory gives reliable account of a phenomenon.

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