In all but the simplest animals, osmoregulation and excretion is carried out using tubules that are ____
a. specialized blood vessels
b. part of the lining of the digestive tract
c. modifications of the respiratory and digestive systems
d. associated with the surface of the skin
e. formed from transport epithelium
ANSWER: e
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Which of the following organisms are not classified as consumers?
a. Humans b. Trees c. Fungi d. Worms e. Parasites
Amplification of a signal increases as the ____
a. number of enzyme-catalyzed steps increases b. number of enzyme-catalyzed steps decreases c. volume of the cell increases d. volume of the cell decreases e. rate of reaction of the rate-limiting reaction increases
Immune system cells that are responsible for the recognizing neoantigens and targeting tumors are called ________
A) macrophages B) regulatory T cells C) monocytes D) tumor-infiltrating lymphocytes
Interspecific competition can affect the phenotypic characteristics of organisms.
Answer the following statement true (T) or false (F)