When does an oocyte complete meiosis II?
A) after fertilization
B) immediately after birth
C) immediately after release from the ovary
D) as soon as puberty begins
E) in the seventh month of fetal life
Answer: A
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What is the correct pathway for a neural impulse?
a. Interneuron - motor - sensory b. Sensory - motor - interneuron c. Motor - sensory - interneuron d. Motor - sensory - interneuron e. Sensory - interneuron - motor
Which of the following statements is NOT true about the flatworms?
a) Liver flukes and blood flukes are parasites in humans only. b) Schistosomiasis is a common human blood disease caused by flukes in tropical areas. c) Tapeworms are hermaphroditic, having both male and female reproductive structures in each proglottid. d) Planaria contain pigmented, photosensitive eyespots. e) tapeworms have a ladder-type nervous system similar to other flatworms.
Which is a defining characteristic of adaptive immunity?
a. nonspecificity b. diversity c. short-lived responses d. self recognition e. reliance on surface barriers
Corn develops from a seedling with a single cotyledon, displays parallel veins on its leaves, and produces monosulcate pollen. It is most likely:
a) a gymnosperm b) a monocot c) a eudicot d) a basal angiosperm