Chitin is abundant in two distantly related organisms, the _____.
A) Bacteria and Eukarya
B) fungi and arthropods such as spiders, crabs, and insects
C) birds and fish
D) protists and plants
E) plants and animals
Answer: B) fungi and arthropods such as spiders, crabs, and insects
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In conifers, the time between pollination and
fertilization is a. just a few hours. b. about a day. c. about a month. d. about six months. e. a year or more
A graphic tool used to determine the probable outcome of genetic crosses is the ____
a. Mendelian box b. Archimedian triangle c. Euclid box d. Hardy-Weinberg graph e. Punnett square
Which complex in the electron transport chain does not contribute to the proton gradient?
A) I B) II C) III D) IV E) V
The reverse of a dehydration synthesis reaction is a(n) ________ reaction
A) anabolic B) exchange C) hydrolytic D) endothermic E) metabolic