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zhuklara [117]
3 years ago
11

HELP QUICK!!

Biology
1 answer:
drek231 [11]3 years ago
4 0

Answer:

B.) Carbon and Hydrogen

Explanation:

Lactose is a carbohydrate, and carbohydrates are primarily made of carbon and hydrogen chains.

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IRISSAK [1]

carbon dioxide.

hope this helps

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3 years ago
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Compare the two new strand of dna. are they the same or different?
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Different, because the old strands were not the same. The nucleotides of each strand of DNA are bonded together in a very specific way - it is called complementarity.
For instance, one strand has a following sequence: ATTGACC . The other strand (or the new strand synthesised based on that strand) has complementary sequence: TAACTGG
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Which of the following is likely to be researched by an environmental scientist? a. the effect of oil spills on marine animals b
prisoha [69]

The correct answer is The effect of oil spills on marine animals.

Environmental scientists deals with the study of nature and the interaction of nature with other organisms. Any effect on environment caused by any means is studied by environmental scientist.The effect of oil spills is harmful on marine animals and this is known to us because it was studied by the environmental scientists. This is also apart of environmental science.

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Both mitosis and meiosis begin with a diploid cell that contains replicated chromosomes. What are the main differences between t
just olya [345]

Answer:

Hope this helps :)

Explanation:

Mitosis is the process by which cells duplicate.

Meiosis is a similar process which is just used to make reproductive cells such as eggs or sperm.

In mitosis, the cell DNA arranges into 46 chromosomes, duplicates, and then divides into two new cells.

In meiosis, the same duplication occurrs except four cells are created, each with only 23 chromosomes. (You know how you get half of them from each parent? This is so that the offspring have genetic variation.)

Another thing to notice about meiosis is that the cells are not identical like in mitosis, which simply duplicates them. Furthermore, in males all four sex cells are used as sperm but in females only one of these cells develops into an egg whereas the rest, called polar bodies, are reabsorbed into the body.

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4 years ago
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Simora [160]

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Explanation:

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