Prior to the Mesozoic Era, the primary photosynthesizers in the ocean were the cyanobacteria and the diatoms
A. true
B. false
B
Biology & Microbiology
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The study of genetic variations that affect people's responses to environmental agents, including man-made chemicals, is called ____________________
Fill in the blank(s) with correct word
Biology & Microbiology
Answer the question using the accompanying figure. The function of the structure labeled "9" is ____
a. food intake b. digestion c. sexual reproduction d. water discharge e. asexual reproduction
Biology & Microbiology
Which of the following neural cells provide metabolic and physical support to other neural cells?
a. motor neurons b. neuroglial cells c. interneurons d. sensory neurons
Biology & Microbiology
The most efficient lungs with respect to oxygen uptake are found in this group of vertebrates.
A. amphibians B. birds C. fish D. mammals E. reptiles
Biology & Microbiology