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2. C
3. B
4. D
5. B
— True or False —
1. True
2. False
3. False
4. True
— End —
Hope this helped, I would appreciate it if you could give me the brainliest answer, I am 100% sure that these questions are correct! Thank you!
Answer:
False
Explanation:
All living things need ribosomes, they are the ones that do the translation of the RNA to form proteins which are essential for the cell to live and to reproduce. Without them the cell will accumulate damage and die in a short period of time due to the fact that it lacks proteins that can act as enzymes, carriers, support of a structure, messengers, etc. In other words, Proteins are of vital importance for the cell and if there is no ribosome that can join the amino acids according to the mRNA sequence there will not be proteins.
Correct option is A)
There are electrical and concentration gradients in neurons that induce the sodium ions to enter the cell. The resting potential is maintained because the channels for sodium ions are closed. The membrane remains impermeable to sodium ions in the rest state. The membrane is more permeable to potassium passage. The potassium ions leak through the membrane at a greater rate than sodium enters. There is loss of positively charged ions from the inner part of the cell membrane. The inner part of the membrane carries a relatively more negative charge than the outer part of the cell membrane.
Thus, the correct answer is option A.
Answer:
<u>C. The coastlines of South America and Africa were similar in shape, suggesting that they shared a common tectonic plate.</u>
Explanation:
- As suggested by the Alfred Wegener, the plates of the South America and the African plants had a similar geologic history and thus shared a common tectonic boundary and hence validate the proof of the superclass and the drifting of the plates at various time zones.
- Thus after the 1960s the plate tectonic theory came into the limelight and was heavily recognized to be fit the works of the drifting of the continental landmasses.
