________ are outgrowths of the epidermis that occur on the shoot.
A. Cuticles
B. Trichomes
C. Sieve cells
D. Root hairs
Answer: B
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All of the following are actin-dependent nonmuscle motility except
A) translocation of multienzyme complexes. B) pinching off of the cleavage furrow in cytokinesis. C) chemotaxis. D) cyclosis or cytoplasmic streaming. E) amoeboid movement.
Which is true of carbohydrates?
A. They may be part of the structure of bacteria. B. They may serve as a source of food. C. They contain carbon, hydrogen, and oxygen in a 1:2:1 ratio. D. They may be bonded to proteins to form glycoproteins. E. All of the choices are correct.
Which lineage includes two species of coelacanths and six species of lungfish among its living members?
a. Actinopterygii b. Myxinoidea c. Petromyzontoidea d. Sarcopterygii
The organelle that extracts energy in food to produce ATP energy is the
A) chloroplast. B) mitochondrion. C) nucleus. D) cytoplasm. E) ribosome.