Answer:
No, not really. Over time, organisms have grown much more complex. Photosynthesis happened around 3.4 billion years ago and respiration around 2 billion years ago. These all serve as a testimony to the fact that organisms are in fact growing more complex. We have seen photoautotrophs arise, from the simpler chemoautotrophs, and they now in fact dominate the array of producers! Organisms don't only do fermentation now; they can also do anaerobic respiration and aerobic respiration too! Thus, current life forms are a lot more different today than 3.8 billion years ago.
Answer:
Explanation:
As Insects excrete uric acid and it require 1 gram of water for its excretion so it conserve water in this way
I’m pretty sure the answer is A, but it could be D
Since the temperature is above 37 degrees, the child’s digestive
system will begin to slow down as the enzyme begins to denature because both
the internal temperature and the external body heat influence digestive
processes. The effect upon the system of the temperature of food and drink is
also a matter of significant consideration.