The big bang theory states that the universe began approximately ________ years ago
a. 3.5 billion
b. 10,000
c. 1.2 million
d. 120 million
e. 13 billion
e
Biology & Microbiology
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Almost all houseplants are clones that have been grown from ____ of a parent plant
a. Seeds b. cuttings c. suckers d. grafts e. fruits
Biology & Microbiology
Gregor Mendel
1.lived in the 1800s. 2.was a monk. 3.grew pea plants. 4.was raised on a farm. 5.All of the choices are correct.
Biology & Microbiology
The middle layer of the skin
a. is called the dermis. b. is primarily connective tissue. c. contains collagen fibers. d. is all of the above.
Biology & Microbiology
What term refers to each chemical version of a gene?
a. chromatid b. phenotype c. locus d. allele e. chromosome
Biology & Microbiology