How much of the available sunlight energy is usually converted into an ecosystem's gross primary productivity?
a. 1 %
b. 2 %
c. 5 %
d. 10 %
e. 25 %
B
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All of the following are ways in which blood functions to maintain homeostasis in the human body EXCEPT which one?
A) moving carbon dioxide away from cells following completion of aerobic metabolism B) conducting action potentials that originate in the nervous system to help with cell-cell communication C) transporting amino acids and other nutrients derived from digestion to all tissues in the body D) transporting hormones and other chemical messengers throughout the body from their point of secretion to their targets E) regulating the pH of body fluids
Where does karyogamy occur in a zygomycete?
a. in the sporangia b. in the asci c. in the conidiophores d. in the zygospore
The connective tissue cords that connect muscles to bones are called
A) thin filaments. B) thick filaments. C) tendons. D) ligaments.
Please match the following nutritional types with the statements that most accurately describe them, to test your understanding of the main categories of nutritional types among organisms.
Phototroph A) An organism that uses inorganic carbon dioxide as its carbon source B) An organism that must obtain its carbon in an organic form C) An organism that gains energy from chemical compounds D) An organism that acquires energy from light