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Marrrta [24]
4 years ago
15

True or false? epidemiologic evidence is more convincing if there is a known biological explanation for an association between a

n exposure and a disease.
Biology
1 answer:
daser333 [38]4 years ago
6 0
True. I believe that’s the answer.
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Different between breathing and cellular respiration I
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Whit the brain you think and your phone you have found all the answers
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3 years ago
Why is the pairing of nitrogen bases key to understanding how DNA replication occurs?
Burka [1]

The DNA replication occurs by preparing a new strand of DNA that is based on the template strand only. So understanding the nitrogen base pairing is very essential for understanding DNA replication.

<h3><u> Explanation:</u></h3>

DNA replication occurs prior to any type of cell division in all organisms. In case of humans, the DNA that is to be replicated needs to be de winded by means of decondensation of chromosomes into chromatin fibres and then to DNA fibres. Then there are enzymes like helicase and gyrase which helps in breaking the hydrogen bonds between two strands of DNA and to open it up for enzymes to get attached.

Then the enzyme DNA dependent DNA polymerase works on both the strands of DNA where it reads the mother DNA strand as a template and then brings deoxyribonucleotides complementary to the template strand and then polymerises it with the previous nucleotide to form a new DNA strand. Thus two DNA strands are produced which are again complementary to each other, leading to the production of a new daughter DNA. So, understanding the complementary base pairing is very essential to understand the DNA replication.

7 0
3 years ago
. What is a negative impact that bioengineered plants may have on the environment?
4vir4ik [10]
Enable plants to produce a wide range of recombinant proteins on a rapid timescale.
3 0
3 years ago
Select the correct answer.
emmainna [20.7K]

it's D but I might be wrong

7 0
3 years ago
Read 2 more answers
Which of these changes in the food web would cause a decrease in the population of bald eagles
bogdanovich [222]

The correct answer is C. A decrease in the population of sea ducks

Explanation:

Food webs are diagrams that represent the relationship of organisms in an ecosystem by showing feeding or predatory relationships. This means food webs show which organisms eats another organism. In the case of the food web presented, this shows bald eagles fed on sea ducks and large piscivorous fish, this implies for survival bald eagles need from these two organisms. In this context, a decrease in the population of sea ducks (option C) would cause a decrease in the population of eagles because fewer sea ducks imply less food for eagles, and therefore fewer resources to survive.

6 0
3 years ago
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