<em>water is important because it gives space to the substances to get in it also it makes the substances wet and dissolve the gases in it ,to transport them from one place to another... </em>
I think that p<span>igments </span>absorb light<span> used in </span>photosynthesis. In photosynthesis<span>, the sun's </span>energy<span> is converted to chemical </span>energy<span> by photosynthetic organisms. ... For instance, </span>plants <span>appear green to us because they contain many chlorophyll a and b molecules, which reflect green </span>light<span>.
I think this is the answer. </span>
Answer: D. the mucus that helps the sperm travel to the uterus is too thick.
Artificial insemination is the technique in which the sperms are introduced into the female's cervix or uterine cavity. This results in pregnancy through in vivo fertilization. Women cervix is blocked by thick mucus which block the entry of sperms. Therefore, artificial insemination would be better in such situation than other forms of treatment.
