b. gas exchange.
Biology, 04.05.2021 01:50 tantoine2704
29. The upper surfaces of leaves are used mainly for
a. light gathering.
b. gas exchange.
c. collecting water.
d. protection from predators.
30. Which answer choice describes the direction in which sugars are most commonly transported by the vascular
system?
a. A to B only
b. A to C only
c. A to B and C
d. C to A and B
31. Seed plants whose seeds are not enclosed in fruit are
a. gymnosperms.
b. angiosperms.
c. ferns.
d. flowering plants.
32. If a cell contains a nucleus and membrane-bound organelles, it is
a. multicellular.
b. heterotrophic.
c. an animal cell.
d. eukaryotic.
33. An animal is each of the following EXCEPT
a. multicellular.
b. autotrophic.
c. heterotrophic.
d. eukaryotic.
34. A student looks at a slice of tissue on an unlabeled microscope slide. The student concludes the tissue is not
from an animal because the cells in the tissue have
a. membrane-bound organelles.
b. nuclei.
c. cell membranes.
d. cell walls.
35. Which of the following are characteristics of amphibians?
a. Hair or fur c. Moist skin, lack scales
b. Hollow bones, strong muscles d. dry, scaly skin
36. This group of worms include earthworms, which are decomposers.
a. Porifera c. Roundworms
b. Flatworms d. Segmented Worms
Answers: 3
Biology, 22.06.2019 19:00
Question 1 which of the following allows cells to take in fluids? a. phagocytosis b. pinocytosis c. exocytosis d. receptor-mediated endocytosis question 2 molecules move along their concentration gradient (from areas of high concentration to low concentration) using active transport mechanisms. a. true b. false question 3 which of the following powers active transport (ie. provides the energy for)? a. glucose b. transport proteins c. atp d. phospholipids question 4 what type of lipid is a major component of the plasma membrane? a. cholesterol b. phosopholipids c. proteins d. triglycerides
Answers: 2
29. The upper surfaces of leaves are used mainly for
a. light gathering.
b. gas exchange.
b. gas exchange.
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