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djverab [1.8K]
4 years ago
7

Hurry whoever answers first will get the brainliest

Biology
2 answers:
klasskru [66]4 years ago
5 0
D. He has an aerator that pumps bubbles into the tank
drek231 [11]4 years ago
4 0
The correct answer would be D) He has an aerator that pumps bubbles into the tank. Its not A) because that doesn't mean fish needs air, not B) because that's needed for the fish to LIVE, not breath air, not C) because that's for helping the fish stay alive in the water.
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Which white blood cell type is not correctly matched with its proper function or feature?.
Bezzdna [24]

Answer:

basophils:

Explanation:

primary phagocytic cells type that fights infection

5 0
3 years ago
There are so many microbes in a single mL of culture, it is very difficult to perform one dilution to produce countable cells. M
Feliz [49]

Answer:

cumulative dilution = 0.000001

Explanation:

A serial dilution is a stepwise kind of dilution repeated a certain number of times, in which the concentration reduces exponentially each time.

The cumulative dilution is the final dilution gotten depending on the number of times dilution has been done and the dilution factor. The formula is given as:

Cumulative dilution = (F)ⁿ

where:

F = dilution factor = 0.1

n = number of serial dilutions = 6

∴ cumulative dilution = (0.1)⁶ = 0.000001

4 0
3 years ago
Can someone answer a please
choli [55]

Answer:

See the diagram

Explanation:

5 0
3 years ago
High-altitude, high-velocity "rivers" of air are called
Alexxx [7]
Jet streams are fast moving air currents much like how a river is a fast moving water current so the answer is jet streams.
6 0
3 years ago
Which condition would most likely lead to an increase in the frequency of an altruistic behavior in a population?.
podryga [215]

The beneficiaries of the behavior are related to the individual performing it. Groups that differ in terms of altruistic and selfish genotypes have differential reproduction or survival.

<h3>What is Altruistic behavior ?</h3><h3 />

Altruism is the practise of acting in a way that benefits another person at the expense of oneself. Giving someone else your lunch, for instance, is altruistic since it satisfies their need while also leaving you hungry.

Nepotistic altruism, reciprocal altruism (or mutualism), group-based altruism, and moral altruism are the four categories of altruism.

  • Along with cortical areas like the medial prefrontal cortex and the temporoparietal junction, the desire to act altruistically is linked to higher activity in limbic areas like the nucleus accumbens and anterior cingulate cortex.

Learn more about Altruistic behavior here:

brainly.com/question/11287458

#SPJ4

6 0
1 year ago
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