Single layer of cells that are taller than they are wide
A. Pseudostratified columnar
B. Simple columnar
C. Simple cuboidal
D. Simple squamous
E. Stratified squamous
F. Transitional
Ans: B. Simple columnar
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An oocyte released from a human ovary enters the oviduct as a result of _____
A) the beating action of the flagellum on the oocyte B) the force of the follicular ejection directing the oocyte into the oviduct C) the wavelike beating of cilia lining the oviduct D) movement of the oocyte through the pulsating uterus into the oviduct E) peristaltic contraction of ovarian muscles
Which of the following receptor and signal transduction molecules are mismatched?
A. sensor kinase receptor (NarQ): NarL B. G-protein coupled receptor: adenylyl cyclase C. G-protein coupled receptor: phospholipase C D. enzyme linked receptors: protein kinase E. steroid receptor: calcium
Which hypothesis suggests that organic molecules formed near Earth's surface in pools of water?
a. clay hypothesis b. iron-clay hypothesis c. organic broth hypothesis d. prebiotic soup hypothesis e. iron-sulfur world hypothesis
As we study the past 50,000 years worth of information about species' decline and extinctions around the world
A. we see a steady-state rate of extinctions on all continents, only islands show a difference due to climate change. B. we see rapid extinctions, especially of the larger animals, not long after humans arrive in an area. C. we see huge extinctions, especially of the larger animals, with ice ages and global warming. D. we see local extinctions that appear random, and then recolonizations from other areas. E. we can make a rough estimate of a population's risk of a local extinction.