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zhannawk [14.2K]
3 years ago
9

The most important primary producers in marine ecosystems are _____. The most important primary producers in marine ecosystems a

re _____. euglenids dinoflagellates diatoms seaweeds
Biology
1 answer:
Ket [755]3 years ago
3 0

Answer: Diatoms.

Explanation:

Diatoms are single celled group of algae that are found in aquatic habitat both freshwater and marine habitat. The are the most important primary produce in the marine habitat. They are photosynthetic I .e they have chlorophyll which help them to trap light energy from sunlight and uses carbon dioxide and water to produce food. They produce food with the process of photosynthesis.

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Suppose that a certain gene functions to enforce a checkpoint on the cell cycle. A mutation causing the loss of this gene's func
chubhunter [2.5K]

Answer:

The correct answer is C. be more likely to have cancer at some point in his/her life.

Explanation:

Cell cycle checkpoints are controlled by different proteins which are coded by different genes. They are important in cell cycle regulation and stops cell cycle immediately if they find any problem in the cell like mutation.

The cell cycle will not be continued if the problem does not solve and cell death will occur which prevents cancer by preventing the mutation to spread into new cells.  

Therefore if a mutation occurs in certain genes that enforce a checkpoint on the cell cycle then the mutated gene will pass in new cells and the mutated cells will grow uncontrollably due to no checkpoints so the person will probably have cancer at some point in his or her life.

7 0
4 years ago
Which organelles can be found in both plant and animal cells? A)cell membrane, nucleus, and chloroplasts B)cell wall, cell membr
Naddika [18.5K]

Answer:

Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal element.

5 0
3 years ago
The psychologist most closely associated with the school of functionalism is
Nostrana [21]

Answer:

Explanation:

Edward B. Titchener. Functionalists, including psychologists William James and James Rowland Angell, and philosophers George H, they stressed the importance of empirical, rational thought over an experimental, trial-and-error philosophy.

hope it helps

3 0
4 years ago
Which provides a baseline for an experimental investigation?
shutvik [7]
I think it is control group
3 0
3 years ago
Read 2 more answers
How did Mendel's<br> experiments provide evidence for the principle of<br> independent assortment?
Mrac [35]

Answer and Explanation

Mendel selected a group of dwarf plants and sel pollinated them by dusting mature pollen grains onto them. He then collected the resulting seeds and planted them and noticed these seeds germinated and grew into dwarf plants only.

He also selected tall plants and self-pollinated them. the resulting seeds he observed that they grew into a micture of tall and dwarf plants. He took the seeds of tall plants only and repeated the experiments for many generations until he obtained only tall plants.

He then crossed cross-pollinated purebreeds tall garden pea with pure breed variety. He planted the seeds and observed the offsprings were all tall plants. He crossed two of these tall offsprinf from the F1 and planted the resulting seeds. the second filial generation consisted of a mixture of tall and dwarf plants.

He counted these plants and noted that the ratio of tall to dwarf was about 3:1. From this, he postulated that there are now laws governing inheritance.The law of independent assortment and law of segregation.

5 0
3 years ago
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