In which part of the brain contains the body’s
“thermostat”?
a. hypothalamus
b. amygdala
c. thalamus
d. anterior pituitary gland
e. medulla
A
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Which group of algae are a commercial source of agar and carrageenan?
a. red algae b. brown algae c. dinoflagellates d. euglenoids e. green algae
Which two properties of water are the main driving factors behind the movement of water in vascular plants?
a. Cohesion and facilitate diffusion b. Active transport and cohesion c. Evaporation and cohesion d. Passive transport and cohesion e. Diffusion and osmosis
Protists are alike in that all are
A) multicellular. B) photosynthetic. C) marine. D) nonparasitic. E) Eukaryotic
What order of events would show how natural selection occurred in a population of lice that could originally be controlled by the chemical permethrin?
A) A louse population evolves resistance to permethrin; permethrin is used to kill lice; lice become more common in schoolchildren. B) Some lice are resistant to permethrin; permethrin is used to kill lice; lice resistant to permethrin become the most common type. C) Permethrin resistance is common in lice; permethrin is used to kill lice; most lice become sensitive to permethrin. D) Permethrin is used to kill lice; individual lice change in order to survive exposure to permethrin; most lice become resistant to permethrin.