In most neurons the resting potential has a value of approximately-70mV
Answer:
in a human 46 chromatids form 23 chromosomes
Explanation:
Answer:
A biome is a group of ecosystems with the same climate
Explanation:
D. A struggle for existence is apparent.
If a struggle for existence is apparent, natural selection occurs because all of the weak/unfit/unadapted ones die.
Answer:
Testing positive for HIV means a high chance of death and a good chance of lower reproduction rates. But some people are immune to HIV, which makes them more evolutionarily fit, likely to live longer, likely to reproduce more, which would increase the frequency of the immune allele in the population. Over time, this increase in frequency of the gene that causes immunity could spread across the human race and cause it to evolve.
