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Vikentia [17]
2 years ago
13

Why are predators often more affected by toxins in the environment (for example, higher mercury levels in large predatory fish,

and higher DDT levels in falcons and condors)
Biology
1 answer:
S_A_V [24]2 years ago
3 0

Answer:

Others are persistent (they stay in the environment and do not break down). These substances accumulate in the food chain and damage the organisms in it, particularly in the predators at the end of the chain. This is because accumulating compounds cannot be excreted.

Explanation:

You might be interested in
1) Plant and animal cells are both categorized the same based on the presence of a particular membrane bound organelle. State th
Vlad1618 [11]

1) Plant and animal cells are both categorized the same as prokaryotes or eukaryotes based on the presence of a particular membrane-bound organelle – the nucleus, bounded by the nuclear membrane.  

Explanation:

Prokaryotic cells are distinctive by the lack of a definitive nuclear structure or nucleus. Eukaryotic cells have a definitive nucleus with a nucleolus and DNA strands and stores the genetic information or the genes which are encased inside the nuclear envelope or membrane. Prokaryotic cells have their DNA in their cytoplasm since they lack a nucleus.

2) The organelles/structures that are found only within plant cells are chloroplasts and central vacuole.  

Chloroplasts are exclusively found only in plants. The chloroplasts contain the chlorophyll, the green pigment which helps the plants to absorb solar or light energy trapped from the sun to carry out photosynthesis.  

The central vacuole, the largest organelle, membrane-enclosed sac filled with fluid called cell sap. The central vacuole provides basic support and structure, maintain cell pressure, store reserve food and waste materials, and contains enzymes which aid various cellular activities.  

5 0
3 years ago
According to the Shannon Diversity Index, which of the five blocks above, with each containing 36 squares, would show the greate
Semmy [17]

Answer:

so here correct option is A. 5

Explanation:

solution

as number of population groups live in a definite area is called diversity

so here in 1  there is only 2 groups of population

and in 2 there is 3 types of population groups

and in 3 there is 2 type of population groups

and in 4 there is 4 type population group

but they are not not evenly abundant and population of 1 group that is much less

so  it might be a foreign population group

so here in 5 there is 4 type of population group which means it has higher diversity compare to other

so here correct option is A. 5

8 0
4 years ago
Structural adaptations of phloem​
tensa zangetsu [6.8K]

Answer:

strong

Explanation:

8 0
3 years ago
Read 2 more answers
If Plant A with yellow flower (dominant trait) is crossed with Plant B white flower (recessive trait), what is the percentage of
marysya [2.9K]

Answer:

100%

Explanation:

Yellow flower color (Y) is dominant over white flower color (y). Plant A is YY while plant B is yy:

       YY    x    yy

  Yy    Yy    Yy    Yy

All the offspring would have Yy genotype and since Y is dominant over y, all of them will have yellow flower color as opposed to while.

<em>Hence, the percentage of the offspring that will have a yellow flower would be </em><em>100%.</em>

5 0
3 years ago
A hypothetical mutation in a squirrel population produces organisms with eight legs rather than four. Further, these mutant squi
dezoksy [38]

Answer:

option c punctuated equilibrium

Explanation:

Punctuated equilibrium occurs in a process whereby evolutionary changes occurs in some organisms in a rapid burst of time rather the conceived gradual changes that occurs over a long period of time. this burst of time might be in about 500,000 years. It is assumed that the organism has maintained/lives in stasis for a long period without a need for change, but then, once the change takes place (most of the time, due to an environmental factor), the organism quickly adapts to its new environment with this new adaptation.

7 0
3 years ago
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