A fisheries biologist tells you she is studying a cohort of salmon returning to their birth river. What can you infer about those salmon?
A. They are the same age.
B. Most of them are one to three years old.
C. They have a Type II survivorship curve.
D. They are iteroparous.
E. They have a uniform distribution.
Answer: A
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A differentiated cell ____
a. has only the genes required for that cell type b. is found in the zygote c. is not found after gastrulation d. has all the genes that came from fertilization e. has 23 chromosomes
How would an earthworm stretch its body to reach a patch of dirt after crossing a hot sidewalk?
A. Contraction of the circular muscles B. Contraction of the longitudinal muscles C. Relaxing the chaetae (setae) D. Pulling on the chaetae (setae) Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about earthworm locomotion? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
A dirty snowball description for a comet nucleus suggests that the composition is ices
a. True b. False Indicate whether the statement is true or false
What are the charophytes?
A. An extinct group of protists that may have given rise to the fungi B. A type of algae that are the closest living ancestors of the first plants C. The oldest living plants D. A type of algae that live symbiotically with fungi