Meningitis
a. results when a virus or bacterium crosses
the blood-brain barrier.
b. is not usually fatal.
c. results when cerebrospinal fluid seeps out
of the meninges.
d. occurs when white matter mixes with gray
matter.
e. includes all of these characteristics
A
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What is the difference between pollination and fertilization in flowering plants?
A) Fertilization precedes pollination. B) Pollen is formed within megasporangia so that male and female gametes are near each other. C) Pollination is the transfer of pollen from an anther to a stigma. Fertilization is the fusion of haploid nuclei. D) If fertilization occurs, pollination is unnecessary.
Insects exchange gasses through pores called _____, which connect to an internal system of tubes called _____, which are in turn connected to respiring tissues
A. spiracles; tracheae B. tracheae, spiracles C. spiracles; radulae D. radulae; tracheae E. none of these
What structure is large enough to be seen through a light microscope?
a. Proteins b. Lipids c. Eukaryotic cells d. Viruses e. DNA
Which of the following is NOT an example of a eukaryote?
A) Plant B) Animal C) Bacterium D) Fungus