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-Dominant- [34]
4 years ago
5

Which statement best describes how pollution can impact the apex predators of the marine community?

Biology
2 answers:
4vir4ik [10]4 years ago
6 0

Answer:

D

Explanation:

flvs xD

JulsSmile [24]4 years ago
4 0
The appropriate answer is D. Apex predators are at the top of the marine food chain, where accumulation of pollution is great. 

The concentration of certain pollutants can get amplified as one moves up the food chain. One such pollutant is mercury. Mercury levels have been found to be high in popular fish species such as tuna. Tuna feeds on other fish and mercury is not eliminated from their bodies; it can therefore accumulate overtime. Mercury is harmful to humans as it can cause brain damage and as such pregnant women are advised to refrain from consuming tuna. 
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Which of the following are necessary for a seed to germinate?
IceJOKER [234]

Answer:

The question lacks options, the options are:

A. moisture content of seed must be at least 9%

B. Moisture content of the seed must be less than 9%

C. certain enzymes in the seed are activated

D. temperature must be above 80 degrees

E. temperature must be below 80 degrees

The answer is A

Explanation:

Germination is practically the very first step of every seed-producing plant. It is the process whereby seeds sprout or begin to grow. Germination requires certain conditions to be met in order to occur. This conditions include presence of moisture in the soil etc.

The water is absorbed by the seed helps to soften the seed coat, which protects the seed from damage. The seed coat ruptures, causing the emergence of growth structures from the seed. In general, seeds need water to activate their dormant physiology. Hence, the moisture content of the seed must not be lower than 9%.

3 0
3 years ago
Which is not part of a molecule of dna
natta225 [31]
Phosphate is not part of a molecule of dna
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3 years ago
_____. a population of organisms will not evolve if _____. the population lives in a habitat without competing species present t
Art [367]

Answer;

all individual variation is due only to environmental factors

A population of organisms will not evolve if all individual variation is due only to environmental factors.

Explanation;

-Evolution of organisms is influenced by several factors which include; natural selection, random genetic drift, mutation, and gene flow.

-Mutation is a random heritable change in a gene or chromosome, resulting from additions, deletions, or substitutions of nitrogen bases in the DNA sequence. Gene flow works to decrease the variation between the two populations.

-Genetic drift is the random change in allele frequency from one generation to the next.. Natural selection is the process by which some organisms have a greater chance of surviving and reproducing than others due to features that are better adapted to the environment.

3 0
3 years ago
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Put the phases of cell division (sex cells ) in order there are 12
Andreyy89

Answer:

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Explanation:

Prophase I, prometaphase, metaphase I, anaphase I, telophase I, and cytokinesis, interphase, prophase II, prometaphase II, metaphase II, anaphase II, telophase II, and cytokinesis are the 12 phases of cell division that occurs in the sex cells of human body. These double phases allow the sex cells to produce four daughter cells from a single parent cell but the chromosomes number is half in each daughter cell.

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3 years ago
In a plant’s life cycle, how many sporophyte generations occur between one gametophyte generation and the next time that eggs an
g100num [7]
B. One

One generation to adults of the next
8 0
4 years ago
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