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LuckyWell [14K]
3 years ago
9

What is the role of the contractive vacuole in a protist

Biology
1 answer:
alukav5142 [94]3 years ago
5 0

The point of the contractile vacuole is to pump water out of the cell through a process called osmoregulation, the regulation of osmotic pressure. It occurs in freshwater protists, but mainly in the kingdom Protista as a whole.

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Outline the levels of organization starting with the smallest, organisms.
jekas [21]

Answer:

Organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere. These have been arranged from the smallest to the largest. The biosphere is the largest level of organization while the organelle is the smallest. However, the basic form of life begins with the cell. Many cells together form a tissue and several tissue form an organ.

7 0
3 years ago
- Which of the following would lead to a cooling of our climate?
Nikolay [14]

Answer:

it would be an increase of plant life

Explanation:

the reason for this is that plants take up the carbon dioxide and give us fresh o2

5 0
2 years ago
The star turns matter into energy is the process of______
evablogger [386]

The star turns matter into energy is the process of nuclear fusion. Nuclear fusion is a process where two or more atomic nuclei fuse to make a single denser, or larger nucleus.

3 0
3 years ago
True / Fasle
nydimaria [60]

Answer: True, both of the given statements are true.

Explanation:

1. Nearly all the environment contains microorganism whether it is soil, air, water or any other surface. They have the ability of live in the extreme conditions.

There are different forms of bacteria found at different places. Some of them are thermophiles that at found in extremely hot conditions such as thermal vents.

The organism like Psychrophiles are the microorganisms that have the ability to survive at lower temperatures. Example: bacteria found in polar regions.

2. A culture can be defined as a pure culture if it has an unadulterated species of bacteria. It has no contamination and if a small inoculum from the pure sample is streaked on a plate then a pure culture of the sample is obtained.

This should be done in an aseptic condition so that the bacterial species should be free from contamination.

4 0
3 years ago
15. The
harkovskaia [24]

Answer:

A. greenhouse effect

Explanation:

The greenhouse effect is a process that occurs when gases in Earth's atmosphere trap the Sun's heat. This process makes Earth much warmer than it would be without an atmosphere. Climate change results from the shedding of gases like CO2 into the atmosphere where it can trap more heat.

4 0
3 years ago
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