Which of the following do dinoflagellates most commonly associate with in a mutualistic relationship?

A) clams
B) corals
C) flatworms
D) snails


Answer: B

Biology & Microbiology

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In studying the dance of the honeybees, Karl von Frisch determined the duration of dance conveyed the ____ of the

food and the angle of the dance conveyed the ____ of the food.

a. direction; distance b. distance; direction c. type; direction d. direction; type e. distance; type

Biology & Microbiology

Meteors strike Earth's atmosphere every day

a. True b. False Indicate whether the statement is true or false

Biology & Microbiology

After a human being draws in outside air through the nasal cavity, in what order does the air flow before reaching the alveoli?

a. Larynx, trachea, bronchi, bronchioles b. Trachea, larynx, bronchi, bronchioles c. Larynx, trachea, bronchioles, bronchi d. Trachea, larynx, bronchioles, bronchi

Biology & Microbiology

Answer the following statements true (T) or false (F)

1.Calcitonin and parathyroid hormone have effects which generally oppose one another. 2.Neurotransmitters and hormones never share the same target cells. 3.The two hormones produced by the thyroid are thyroxine and triiodothyronine. 4.Exercise leads to weaker muscles due to the repeated strain, which damages the muscle. 5.The temporalis muscle is critical for chewing.

Biology & Microbiology