EXPERT HELP: EXPLAIN THE ANSWER:
What happens during the stage labeled 6?
A. Young male cones produce spores using meiosis.
B. Young female cones produce spores from cells that divide using meiosis.
C. A spore divides and grows into a pollen grain using mitosis
D. A seed that contains an embryo plant grows into a young pine tree.
Compare and Contrast Plant And Animal Cell
Here is what you and the women see when you look through the electron microscope. What is your conclusion about whether polio is a virus, and why? What would you recommend for polio prevention?
Explanation:
Polio is a viral disease which may affect the spinal cord causing muscle weakness and paralysis. The polio virus enters the body through the mouth, usually from hands contaminated with the stool of an infected person. I believe this is a virus because virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.
my recommendation for polio prevention is Poliomyelitis vaccine should be given at 2, 4, and 12 to 18 months and 4 to 6 years of age, for a total of four doses at or before school entry. For children who receive OPV only, the third dose may be given as early as 6 months of age in accordance with prior recommendations.
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If scientists are studying the birds, crabs, and grass, but not the water or rocks in a salt marsh, what level of organization would they be studying?
A. Community
B. Organism
C. Ecosystem
D. Population