Once a pollen grain lands on the stigma, a(n) is produced that grows down the style and into the ovary.
a. pollen tube
b. endosperm
c. conjugation tube
d. hilum

What was darwins theory of common decent

Analyze how the water cycle affects a food web. now list 3 examples for each below using complete sentences, on how too much water would affect the same web? how about to little water?

Which if the following best describes why invertebrates isn’t considered a scientifically valid word when classifying animals