The cells of a mature pea plant have 10 chromosomes. how many chromosomes does a nucleus in the pea endosperm contain

Contrast how pollination is different among gymnosperms and angiosperms.

In "the man in the water," what was the remarkable occurrence that rosenblatt reported?

For the strategies below, decide whether they are best described as demand-side solutions or supply-side solutions to meeting human needs for fresh water. remember that a demand-side solution reduces demand for fresh water, whereas a supply-side solution increases the supply of fresh water. (a) damming a river to create a reservoir (b) desalinating seawater (c) a nation invading a neighboring country to access their rivers (d) raising water prices for consumers and businesses (e) providing tax breaks for companies that use less water (f) replacing inefficient irrigation with more-efficient drip irrigation to grow crops (g) requiring low-flow showerheads in all new homes