Answer:
The answer is C
Explanation:
Something changed to limit and finally abolish their success in this environment.
Answer:
Proteins are essential elements for growth and repair, good functioning and structure of all living cells
Explanation:
Answer:
D. The concentration of salt becomes so high that all plant life is destroyed.
Explanation:
As time passes, the structure of an ecological community gradually changes leading to formation of new species. This is known as <u>ecological succession</u>.
The various processes above show an example of how ecological succession occurs over time. <u>However, it doesn't indicate at any point that plant life is destroyed due to high concentration of salt.</u>
The salt marsh that results actually supports plant life in the form of mangrove trees.
Answer:
C. They contain sugars, phosphate, and nitrogenous bases
Explanation:
A. is wrong because only RNA is made up of single strands of nucleotides, while DNA is a double-stranded helix.
B. is wrong because DNA and RNA are examples of nucleic acids, not carbohydrates
D. is wrong because only RNA contains uracil, while DNA has thymine instead of uracil.
C. is correct because both DNA and RNA have sugar-phosphate backbones and nitrogenous bases. The difference between RNA and DNA is seen in their names--deoxyribo nucleic acid (DNA) vs. ribo nucleic acid (RNA). Ribose is a type of sugar, the same as found in RNA, while deoxyribose (in DNA) is the same except for not having an oxygen atom on the 2' Carbon (de-oxy = without oxygen).