The primary thermostat of the body is located in the
a. heart.
b. hypothalamus.
c. medulla oblongata.
d. cerebellum.
e. thyroid gland.
Answer: b
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Males with one copy of an X-linked gene are said to be ________ for that gene.
A) homozygous B) heteroallelic C) heterozygous D) hemizygous E) deficient
Which of the following statements about biofilms is true?
a. They are formed by prokaryotes living in a watery environment. b. They may develop on surgical implants. c. An example is dental plaque. d. They are formed by prokaryotes living in a watery environment and they may develop on surgical implants. e. They are formed by prokaryotes living in a watery environment, they may develop on surgical implants, and an example is dental plaque.
Write the letter of the ecological level of organization that is the least complex and inclusive next to 1
Sequence the remaining levels of organization by increasing complexity.
A. ecosystem ecology B. organismal ecology C. community ecology D. population ecology 1. 2. 3. 4.
In the tricarboxylic acid cycle, oxaloacetate reacts with acetyl CoA forming citrate
__________________ Indicate whether the statement is true or false.