Diatoms have a cell wall made of two halves called
valves.
nuclei.
thylakoids.
none of the above

Spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. makes predictions

Amniocentesis is a process in which amniotic fluid is taken from the mother's womb to identify any genetic abnormalities in the fetus. how would the discovery of the human genome contribute to this process?