Answer the following questions true (T) or false (F)
1. Pioneers are the first invaders of a newly exposed habitat.
2. The biotic factors in an ecosystem include all organic materials, living and nonliving.
3. Photosynthesis is the main process by which carbon dioxide moves from the atmosphere to biomass.
1. TRUE
2. FALSE
3. TRUE
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Explain how apoptosis can protect the body against cancerous cells. What will be an ideal response?
Which of the following types of cell cleavage is found most often for deuterostomes?
a. radial, indeterminate cleavage b. spiral, determinate cleavage c. radial, determinate cleavage d. spiral, indeterminate cleavage
The physical splitting of the parent cell into daughter cells is _______.
a) interphase b) cytokinesis c) crossing over d) replication
Pneumocystis jiroveci is
A) easy to grow in the laboratory. B) actually a protozoan and not a fungus. C) an obligate parasite that cannot survive outside the lungs. D) a common member of the human respiratory microbiota. E) a member of the human microbiota that is an obligate parasite.