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Tatiana [17]
3 years ago
10

What is meant by the term aging?

Biology
1 answer:
worty [1.4K]3 years ago
3 0
The answer is definitely C, unless the passage you’re reading is giving off a different meaning.
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The plants, water, and soil of a forest
maksim [4K]
Earth ? Or nature witch one are you getting at
3 0
3 years ago
Read the article to learn more about the human
natita [175]

Answer:

Down syndrome, Turner syndrome and Klinefelter syndrome.

Explanation:

Down syndrome, Turner syndrome and Klinefelter syndrome are the genetic disorders which are found in chromosome. Down syndrome is a common genetic disorder that occurs when a person has three copies of 21st chromosome. It is also called  trisomy 21. Due to this disorder, delays occur in physical and mental developmental and disabilities of human body parts.

8 0
3 years ago
Read 2 more answers
What is the purpose of this structure, and why do you think it is missing from the root
Masteriza [31]

Answer:

Chloroplasts What is the purpose of this structure, and why do you think it is missing from the root hair cells? To collect water and mineral nutrients present in the soil and take this solution up through the rootsto the rest of the plant

Explanation:

5 0
2 years ago
Chloroplasts and mitochondria are both are unusual in that they have double membranes and contain their own set of dna. can you
kolbaska11 [484]
This observation can be explained by the theory of endosymbiosis. From what scientists have discovered, it can be explained that the double membrane of both chloroplast and mitochondria are as a result of them been subjected to phagocytosis but they were not digested. Their DNA suggest that they were once free living prokaryotes. This agree with the endosymbiosis theory which states that eukaryotic cell organelles developed from prokaryotic cells.

5 0
3 years ago
When purified virulent pneumococci DNA was introduced to avirulent pneumococci, Avery and his colleagues observed _____. Multipl
Vikki [24]

Answer:

death of test mice, growth of virulent pneumococci, indicating DNA was the agent of transformation

Explanation:

In an experiment conducted by three scientists namely: Oswald Avery, Colin MacLeod and Maclyn McCarty in 1944, it was proven that DNA is the substance that causes transformation in bacteria as opposed to proteins.

In this experiment, Avery and his colleagues combined a dead but virulent strain of Streptococcus pneumoniae & a living but avirulent strain of the same bacterium and inserted into a living rat. They found out that the test specimen (rat) died and observed the growth of the virulent pneumococci.

This suggests that the virulent strain of bacteria has transferred its virulent DNA via transformation into the avirulent strain to kill the rat. Hence, indicating DNA as the agent of transformation.

8 0
2 years ago
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