Answer: Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. If they are met, natural selection automatically results.
Explanation:
In drosophilia, the gene for eye color is located on the x chromosome.
Evolved from past organisms hope this helps!!!!
Answer:
C
Explanation:
The circulatory system would fail, and the entire organism would suffer.
------i took the test and at first i chose what the person above me said which was A, but i got it wrong. when i looked at the "review" to see which ones i got wrong, it showed that the correct answer is C.
