Asolution is a a: combination of isotopes. b: mixture in which the substances are evenly spread out. c: chemical reaction d: mixture in which undissolved substances do not settle out

Hurry 25pts which one of these is involved in both sexual and asexual reproduction a sperm b spores c seeds d eggs

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.

What are positive impacts of algae? how is it used?