The voice box is also known as the ____
a. pharynx
b. trachea
c. bronchus
d. larynx
e. epiglottis
ANSWER: d
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The geological timescale was first developed using the fossil record, but this provided only a system of relative dating; absolute dates weren't established until the discovery of ____
Fill in the blank with the appropriate word.
Answer the following statements true (T) or false (F)
1. Myosin is a motor protein that walks along intermediate filaments. 2. The flagellum is composed of a 9 + 2 arrangement of microtubules called the axoneme. 3. Materials move in and out of the nucleus via endocytosis and exocytosis. 4. The Endosymbiosis theory best describes the origins of peroxisomes in eukaryotes.
Softwood is the wood:a
found at the center of a tree. b. of cone-bearing gymnosperms. c. of flowering plants. d. formed when water is abundant. e. formed when water is less abundant.
Nephridia are ____.
A. circulatory organs B. respiratory organs C. excretory organs D. endocrine organs E. part of the nervous system