Explain how environmental contaminants make their way into and through the food chain.

1 answer:

7 0

Environmental contaminants make their way into lakes, rivers, and groundwater and many other places. Animals drink that water. Our crops absorb that water that seeps into the soil, those crops are consumed by animals and humans. Therefore those animals are contaminated with whatever contaminant they consumed. In return those animals are ingested by the predator that consumes it therefore passing through the food chain.

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Please help, due tomorrow!

aleksandrvk [35]

Answer:

Yes

Explanation:

The goat has adapted to its cold environment, therefore will get the trait of long hair. As the goat mates it will pass on its genes for the long hair trait and this will give the offspring the same trait.

4 0

3 years ago

Read 2 more answers

_____ occur(s) when a species gives rise to many new species after colonizing a region with diverse habitats.

borishaifa [10]

Adaptive radiation

occur(s) when a species gives rise to many new species after colonizing a region with diverse habitats.

I hope this helps, please give Brainest! Have a nice day!

7 0

3 years ago

Which body part is vestigial in humans?

Stels [109]

Answer:

The answer is the 2nd picture: the coccyx bone in humans.

Explanation:

Vestigial Structure:

Structures or anatomical features that do not currently serve a function is the bodily processes of a living organism. Vestiges are believed to have performed active functions in the organism's ancestors throughout its evolutionary history.

Coccyx Bone:

The coccyx or tailbone is an evolutionary remnant of our tree dwelling ancestors. Coccyx has no use in modern humans as we do not need to climb trees.

The coccyx in modern humans serves as an anchor for muscles.

5 0

3 years ago

The formation of the fertilization envelope (slow-block to polyspermy) requires an increase in the availability of _____.

jok3333 [9.3K]

<span>The formation of the fertilization envelope (slow-block to polyspermy) requires an increase in the availability of </span>calcium ions.

Slow-block to polyspermy is also called cortical reaction. In this reaction, the sperm will be permanently blocked by cortical granules. The release of calcium ion will trigger this reaction.

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4 years ago

What effect would there be on the final daughter cell if the spindle fibers failed to pull a chromosome toward the pole, as in c

allochka39001 [22]

Aneuploidy can result in the final daughter cell if the spindle fibers fail to pull a chromosome toward the pole as in case of non-disjunction.

Explanation:

Aneuploidy is a condition which arises when one or more chromosome is missing in the final daughter cells.

Non-disjunction refers to the failure of chromosomal or chromatid segregation or separation during cell division. This results in erroneous meiosis or mitosis leading to the formation of final daughter cells or gametes with an extra or missing chromosome. This condition is aneuploidy.

Failure of separation or segregation of:

Homologous chromosomes occur in Anaphase I, affects four daughter cells.
Sister chromatids during Anaphase II, affects two daughter cells

This failure of separation leads to aneuploidy chromosomal abnormalities like monosomy, trisomy, etc which can cause diseases like Down’s syndrome, Turner’s syndrome etc.

8 0

3 years ago