Which of the following is a feature of this organism?
1.It has a single eyespot at the end of the nerve cord.
2.It is jawless.
3.It has paired fins and scales.
4.It has waterproof skin.
4
Biology & Microbiology
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The osmoreceptors that detect and react to dehydration are located in the ____
a. hypothalamus b. adrenal glands c. efferent arteriole d. kidneys e. posterior pituitary
Biology & Microbiology
The figure above represents
a. the algae that were to give rise to plants. b. protists. c. fungi. d. soil bacterium with primitive membrane folds. e. all of these.
Biology & Microbiology
The urinary bladder is labeled
a. 1. b. 2. c. 3. d. 4. e. 5.
Biology & Microbiology
Each tier of the biomass pyramid depicts the
____ of all the organisms in an ecosystem. a. size b. number of species c. dry weight d. total weight e. total utilization of materials
Biology & Microbiology