Mainly by nitrogen-fixing bacteria in the soil and oceans
Answer:
Both fish and bird embryos exhibit gill slits and a tail.
Explanation:
According to embryology, all vertebrates exhibit similar traits and structures at their embryonic stage. It becomes very difficult to differentiate between the embryos of a fish, and that of a bird, or embryo of a fish, and a human. These traits, however, disappear, as the case may be, as the embryo develops into an adult. For example, in the case of the embryo of a fish, and a bird, both shows gills slits at their respective embryonic stage. However, the gill slits in fish develop into gills, whereas in the case of birds, it disappears as the embryo develops into an adult.
Answer:
it would probably mean that we wouldn't have to eat, or not as much anyway, we aren't outside 24/7 and unlike plants. we move around, so during winter we can't just go dormant nor can we just stand outside. To sum this up, we would probably only have to eat less
Explanation:
B) sunlight
Sunlight supports life by providing food and warmth which is needed for the population of practically anything on earth to survive
