Which protist is best described by its lifestyle?

A) Euglena have features of animals and fungi.
B) Paramecium are ciliated hunters.
C) Plasmodium are free-living animal-like protists.
D) Amoebas are sedentary photosynthetic protists.


Answer: B

Anatomy & Physiology

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The ________ is the layer of the alimentary canal that absorbs nutrients.

A. mucosa B. serosa C. submucosa D. muscular layer

Anatomy & Physiology

Which of the following is normally the major source of hydrogen ions in the body?

a. Phosphoric and sulfuric acids formed during the metabolism of dietary proteins b. Lactic acid production by the muscles during exercise c. Carbonic acid generated from metabolically produced CO2 d. Natural acids found in foods, such as citric acid e. Fatty acids produced during fat metabolism

Anatomy & Physiology

Which of these vessels receive blood during ventricular systole?

A) pulmonary arteries only B) aorta only C) both the aorta and pulmonary trunk D) pulmonary veins only

Anatomy & Physiology

The male sex hormone is called _____.?

A) ?progesterone B) ?testosterone C) ?estrogen D) ?myometrium

Anatomy & Physiology