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nlexa [21]
3 years ago
13

The organisms that form the base of most open-ocean food webs are

Biology
2 answers:
kari74 [83]3 years ago
4 0
Plankton is the organisms that form the base of most open ocean food webs because fish eat plankton and bigger fish like sharks eat the little fish that eats the plankton.
antoniya [11.8K]3 years ago
4 0

The correct answer is option C, Plankton

Reason -

In open ocean food web, the organism that lies at the bottom is planktons. Photo plankton consists of chlorophyll and is able to produce food of its own. The zoo planktons then feed on the photo planktons. Corals also survive by eating planktons. Small fishes survive by eating zooplanktons. Larges fishes then feed on smaller fishes. Thus, plankton is at the base of a complex aquatic food web.

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If a microscope has an ocular lens of 10x and a low power objective of 10x, what is the total magnification under low power?
Westkost [7]

The correct answer is: 100x.

The calculation of total magnification of the microscope includes multiplying the magnification of the lenses together, So, to calculate the total magnification take the power of the objective (10X) and multiply by the power of the eyepiece, ocular lens (10X).

7 0
3 years ago
Why does a deletion mutation usually cause more defects during protein synthesis than a point mutation?
BARSIC [14]
Answer: B

WHY?
Deletion mutation may cause a shift of base sequence, causing the reading frames for base sequence to change during translation. This may affect the type of amino acid it the original base sequence codes for, resulting in a change in amino acid sequence in the polypeptide translated. Therefore, affecting the whole protein itself. There may be wrong amino acids that prevents vital bonds like disulfide bridges to form, resulting in a huge change in 3 dimensional conformation of the protein. A point mutation may result in a gene sequence being edited. However, only the target sequence is being mutated. The rest of the gene sequences are left untouched. Therefore, the impact is localised. This ensures that even though a few wrong amino acids may be in the polyleptide, most of the bonds that are crucial for the correct 3 dimensional conformation is still present, therefore, lesser defects will be resulted due to point mutation as compared to deletion mutation.
5 0
3 years ago
Read 2 more answers
What factor controlled the population of peppered moths in england?
Molodets [167]
The evolution of the peppered moth evolutionary  instance of directional colour change in the moth population as a consequence of air pollution during the Industrial revolution .The frequency of dark-coloured moths increased at that time, an example of industrial mellaniam. Later, when pollution was reduced, the light-coloured form again predominated. Industrial melanism in the peppered moth  was an early test of Charles Darwin natural selection  in action, and remains as a classic example in the teaching of evolution.
5 0
3 years ago
The main difference between starch and cellulose is that:
Musya8 [376]

Answer: the residues are connected differently in starch and cellulose.

Explanation:

Starch is formed from alpha glucose, while cellulose is made of beta glucose. The difference in the linkages lends to differences in 3-D structure and function. Starch can be straight or branched and is used as energy storage for plants because it can form compact structures and is easily broken down.

5 0
3 years ago
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Question 1
masha68 [24]

Answer:

flaccid, hypertonic.

Explanation:

It became flaccid due to the low water potential in solution outside of potato cells, hence causing water to leave the potato cells & move into the solution.

Hypertonic solution simply means the concentration of solute is higher & water potential is lower than in potato cells.

8 0
3 years ago
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