I think it's D. recycle nutrients
<u>Answer:</u>
<em>If the everglades had a drought hen there would be threat to the ecosystem.</em>
<u>Explanation:</u>
Everglades consists of diverse ecosystem due to the availability of tropical and subtropical habitat. It consists of about <em>1.5 billion acers of wetland.</em> There, a large variety of plants and animals are found which adjust in such environment.
If the environment changes then those animals will be unable to adjust and go to extension. So, if the everglades had a drought, then those animals will find an alternative place to<em> live in and the ecosystem</em> will lose its balance.
Answer:
Therefore, when an experiment shows that one variable makes another variable change, and no other variables have any effect, the experiment shows causation.
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.