A(n) ____________________ molecule is at the center of each heme group in hemoglobin. Fill in the blank(s) with the appropriate word(s)
ANSWER: iron
You might also like to view...
What basic information does a demographer need to know to predict a species population size through
time?
What will be an ideal response?Which type of active transport is illustrated here?
1.Antiport
2.H+ pumped against its gradient
3.Symport
4.Uptake of cations
Protection from injury, dehydration, and microbes is provided by the
a. immune system. b. skeletal system. c. integumentary system. d. endocrine system. e. lymphatic system.
When a farmer grows cotton containing the gene for Bt toxin, they often leave a strip of non-Bt cotton around the outside of the field for what reason? Select one:
a. to allow some rr bollworm caterpillars to survive b. to allow the non-Bt and Bt cotton plants to cross pollinate c. because the non-Bt cotton does not drive the moths and caterpillars to extinction d. because the non-Bt cotton grows better e. to allow some RR bollworm caterpillars to survive and limit selection pressure for resistance