Which layer of the atmosphere is the top layer of the thermosphere?

stratosphere

exosphere

troposphere

mesosphere

What maintain homeostasis when a persons internal body temperature is 97.5°f

If a human has 23 pairs of chromosomes in every muscle cell of its body how many chromosomes will be in a human egg or sperm

1. isogamy 1 organisms with gametes of the same size and shape 2. anisogamy organisms with gametes of different sizes and shapes 3. oogamy 2 organisms with gametes of the same shape but different sizes 4. gonads gamete-producing organs in lower plants 5. gametangia gamete-producing organs in animals