D
Only eukaryotic cells have membrane bound organelles. Prokaryotes organelles just float in the cytoplasm.
Answer:
Thermosfere
Explanation:
Temperatures increase in the_Thermosfere __ and troposphere _layers of the atmosphere.
Observation is broken up into three parts. The first is the date. Then you have the activity and last you have a brief description of what is being observed.
Answer:
Although more offsprings are produced by the process of external fertilization but the process of internal fertilization is more efficient as compared to external fertilization. This is because, in external fertilization, it is more difficult for the sperm to find the egg and fertilize it. Even after fertilization, it might be that the zygote gets eaten up by a predator. There are none such risks in internal fertilization. The zygote is protected during the internal fertilization which makes this process more efficient.
Cells because most living things like plant life and humans are made up of cells and animals are made up of cells too!