Which organelle is present in the cells of a bean plant, but not in the cells of a human? O Chloroplast
Nucleus
O cell membrane
O Mitochondria

Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?

When a human or animal consumes food, the carbon in that food is most likely to be converted into which of the following elements? a. carbon remains carbon b. nitrogen c. oxygen d. hydrogen

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?