Answer: Internal skeleton, flippers/fins & tail, and embryos with 4 limb buds3.) brainliest??
Explanation:
Answer: what are you asking in this question?
Explanation:
For body cells to function properly, the following conditions need to be balanced:
1. BLOOD SUGAR
2. BODY WATER
3. BODY TEMPERATURE.
These three factors have to be in the right proportion for the cells and the body as a whole to function properly and to maintain homeostasis.
Blood sugar is the source of energy in the cell and it is required by all cell for carrying out the normal biochemical reactions in the body. The biochemical reactions in the body use water as a medium of reaction, thus the water balance in the body must be maintained. The body temperature also need to be kept at the normal level or else the normal biochemical reaction of the body will not be able to take place, due to the fact that incorrect temperatures deactivate the enzymes that mediate biochemical reactions.
Sexual reproduction is a process involving
the fusion of two gametes to form a zygote.
Gametes are special reproductive cells
produced by meiosis. It produces
genetically dissimilar offspring. Offspring
may inherit beneficial qualities from both
parents and there is a greater genetic
variation in the offspring, leading to species
that are better adapted to changes in the
environment.