Why is fire-suppression in chaparral habitats not a good strategy for protecting species in this biome?
1.It prevents seeds of plants from sprouting if there is no fire to score the seed.
2.It prevents patches from opening up for succession to take place.
3.It prevents nutrients from being released into the soil.
4.It prevents larger trees from dying to create more space for new individuals.
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The putative ancestor of animals was:
A. choanoflagellates B. chytrids C. gnetophytes D. stramenopiles E. euglenozoa
Inflammation of the larynx that is usually associated with the common cold or influenza syndromes and that is caused almost exclusively by viruses is:
a. laryngitis. b. laryngotracheobronchitis. c. epiglottitis. d. Vincent angina.
Why does active transport require ATP?
a) An input of energy is needed to allow the movement of molecules from an area of low concentration to one of higher concentration. b) An input of energy is needed to speed up the rate of facilitated diffusion. c) An input of energy is needed to maintain the conformation of transport proteins. d) An input of energy is needed to both speed up the rate of facilitated diffusion and maintain the conformation of transport proteins.
Groups of bacteria living together in a close-knit group are also known as ____.
A. eukaryotes B. pathogenic bacteria C. monophylogenic cultures D. biofilms E. archaea