Why is the axon the only cellular projection in sensory neurons? Why do other neurons have additional cellular projections?

There are ________ segments of the spinal cord.

A) 30
B) 12
C) 31
D) 24

Which of the following is a series of reactions in which glucose is degraded to pyruvate and electrons are transferred to carriers?

A) Formation of acetyl CoA
B) Citric acid cycle
C) Glycolysis
D) Decarboxylations
E) Electron transport and chemiosmosis

Which genetic feature is least associated with females?

A) Barr body
B) Y chromosome
C) dosage compensation
D) XIST gene
E) X inactivation

The process during which the diploid set of chromosomes becomes haploid is ____.

A) mitosis
B) fertilization
C) cleavage
D) meiosis
E) gametogenesis

nodules

A) theory of water movement through the xylem
B) pipelines of the xylem
C) a mutually beneficial association between a fungus and a young root
D) structures on roots that house nitrogen-fixing bacteria
E) pipelines of the phloem
F) evaporation from stems and leaves
G) actively transport sucrose into sieve tube members
H) theory of sugar movement through phloem

The height of pea plants from a cross between parent plants heterozygous for height, in which tall is dominant, would be

A) all short.
B) all tall.
C) 1 tall: 3 short.
D) 2 short: 2 tall.
E) 3 tall: 1 short.