Which of the following does not characterize a synovial joint
A) Joint cavity filled with fibrous tissue
B) Fibrous material forms a joint capsule
C) Lubrication with a fluid
D) A synovial membrane?
Ans: A) Joint cavity filled with fibrous tissue
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Why do oils form a significant part of the nutritional reserves in many seeds?
A. Oils help keep the embryo hydrated, allowing the seed to survive in dry habitats. B. The oils reduce the density of the seed and allow for water dispersal. C. Oils contain more mineral nutrients than carbohydrates. D. Oils store twice as much energy as an equivalent mass of starch. E. Hormones diffuse more quickly through oils.
Altruism in animals
a. lowers their chances of perpetuating their own genes. b. has no genetic basis. c. is a conscious effort to preserve the species. d. is just lucky behavior. e. includes none of these.
In your research, you have discovered that Protein X is often ubiquitinated in people with a certain disease. What would you predict about levels of Protein X in these patients?
A. Levels of Protein X will be the same, just carrying a ubiquitin tag. B. Levels of Protein X will be decreased due to negative feedback on transcription. C. Levels of Protein X will be increased due to protection from degradation. D. Levels of Protein X will be increased due to transcriptional activation. E. Levels of Protein X will be low due to degradation in the proteasome.
Removing the terminal bud of a plant that shows apical dominance will cause
A) an increase in the growth of the root system. B) increased growth of the terminal bud. C) increased growth of the axillary buds. D) an immediate flowering of the plant.