What is found between the primary walls of adjacent cells for cells to adhere tightly to one another?
a. collagen
b. cytosol
c. middle lamella
d. secondary cell wall
e. intermediate filaments
c
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Offshore financial centers are designed to attract
A) export-oriented industries. B) propulsive industries. C) foreign aid. D) secret, tax-sheltered monies. E) maquiladoras.
The primary elements making up living organisms are
A. carbon, hydrogen, iron, sulfur, sodium, and calcium. B. carbon, hydrogen, oxygen, sulfur, nitrogen, and phosphorus. C. carbon, hydrogen, oxygen, calcium, iron, and iodine. D. carbon, oxygen, iron, chlorine, sulfur, and phosphorus. E. carbon, oxygen, sulfur, calcium, iron, and phosphorus.
What has sequencing the genomes of modern humans, nonprimates, Neanderthals, and Denisovans determined about the relationship between modern humans and other lineages?
A) Denisovans and Neanderthals lived together in Europe about 30,000 years ago and interbred with each other. B) The lineages leading to Denisovans, Neanderthals, and modern humans diverged 800,000 years ago and the different lineages did not exist at the same time. C) Modern humans lived together with Neanderthals in Africa and interbred with them. D) Modern humans are the direct descendants of Neanderthals. E) Modern humans lived together and interbred with Denisovans in parts of Asia and the south Pacific.
__________ occurs when two species act as agents of selection upon one another. Fill in the blank(s) with the appropriate word(s)