The passive movement of molecules from an area of higher concentration to an area of lower concentration is called _________.
A. diffusion
B. phagocytosis
C. active transport
D. endocytosis
A. diffusion
Biology & Microbiology
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Vessel elements must be thinner and shorter than tracheids because they lack the structural integrity to support large angiosperm trees
A. true B. false
Biology & Microbiology
During visual accommodation in mammals the ________ changes shape to focus light on the retina for a clear visual image
a. iris b. pupil c. lens d. cornea
Biology & Microbiology
Members of the phylum ____ all have at some point during development a hollow dorsal nerve cord, a
perforated pharynx, a notochord, and segmented muscles in both the body wall and postanal tail.
a. Hemichordata b. Echinodermata c. Cnidaria d. Arthropoda e. Chordata
Biology & Microbiology
Zygospores are used to resist harsh conditions.
Answer the following statement true (T) or false (F)
Biology & Microbiology