All of the following are involved in the regulation of the rate and depth of breathing EXCEPT which one?
A) carotid and aortic bodies
B) blood levels of CO2
C) blood levels of O2
D) bronchi, bronchioles, and alveoli
E) medulla oblongata
D
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Which of the following contain enzymes and
are the main organelles of waste disposal?
a. Golgi bodies b. mitochondria c. lysosomes d. ribosomes e. endoplasmic reticulum
A species that is so important to its community (such as the sea otter) that their removal can dismantle a food web is termed a species.
A. capstone B. flagstone C. cobblestone D. cornerstone E. keystone
Insects have a(n) __________ eye, with many individual units. Fill in the blank(s) with the appropriate word(s)
This young seedling
a. is a monocot. b. is a eudicot. c. is a magnoliid. d. could be either a monocot or a dicot. e. is none of these.