In what order do the following taxa appear in the fossil record?
a. invertebrates; fish; land plants; amphibians
b. invertebrates; amphibians; fish; land plants
c. land plants; invertebrates; amphibians; fish
d. land plants; invertebrates; fish; amphibians
e. invertebrates; fish; amphibians; land plants
Answer: a. invertebrates; fish; land plants; amphibians
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The micropyle is ____
a. the mature male gametophyte b. the inner seed coat c. a small opening at one end of an ovule d. a passageway through the style for sperm e. the eight-cell stage of a plant embryo
The most common form of reproduction for sharks is: a. oviparous reproduction
b. viviparous reproduction. c. asexual reproduction. d. ovoviviparous reproduction.
If cytokinesis did NOT happen at the end of a cell's mitotic division what would be the result ?
A) Four cells B) A single cells with one nucleus C) A single, multinucleated cell D) Two cells
A pseudogene is:
a. a nonfunctional copy of another gene. b. a homeobox gene. c. a MADS-box gene. d. a subfunctional paralog.