In plants water is lost through stomata. Figure 1 shows stomata on the lower surface of a leaf.
Figure 1
0.1 mm
Stoma
0.1 mm
(c)
Calculate the number of stomata per mm2 for the leaf shown in Figure 1.

Which best describes this behavior? it is beneficial only to the males that do not fertilize eggs. it is beneficial only to the female workers that are not fertilized. it is beneficial to each one of the individual colony members. it is beneficial to the whole species, but not to all of the individual members.

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from

Which of the following best describes the purpose of the parathyroid hormone? a. it decreases the blood calcium level and decreases blood phosphorus level. b. it decreases the blood calcium level and increases the blood phosphorus level. c. it increases the blood calcium level and increases blood phosphorus level. d. it increases the blood calcium level and decreases blood phosphorus level.