What three features define eusociality? (Check three.)A) Colony resides in an enclosed hive or nestB) Cooperative brood careC) HaplodiploidyD) Insect species onlyE) Overlap of generationsF) Reproductive division of laborG) Reproduction during a mating flight
What will be an ideal response?
B, E, F
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An animal with an open circulatory system
a. lacks a continuous network of blood vessels that contain the blood at all times. b. can have only one heart. c. has two separate vascular circuits. d. is able to distribute substances faster than a closed system. e. can grow larger than one with a closed circulatory system.
In horses, black coat color is influenced by the
dominant allele (B), and chestnut coat color by the recessive allele (b). Trotting gait is due to a dominant gene (T), pacing gait to the recessive allele (t). What color horse would you use to find out the genotype of a black trotter? Give the genotype and phenotype. What will be an ideal response?
A rancher is suspected of shooting wolves near Yellowstone National Park, and you have been enlisted to go have a chat with him. The rancher doesn’t see any benefit to having the wolves there. What do you say?
A. "If there are no predators like wolves, just one pair of jackrabbits can quickly create a population with explosive, logistic growth. Wolves help reduce the fecundity rate, keeping the population at a reasonable level." B. "If there are no predators like wolves, just one pair of jackrabbits can quickly create a population with explosive, exponential growth. Wolves help reduce the carrying capacity, keeping the population at a reasonable level." C. "If there are no predators like wolves, just one pair of jackrabbits can quickly create a metapopulation. Wolves help reduce the biotic potential, keeping the population at a reasonable level." D. "If there are no predators like wolves, just one pair of jackrabbits can quickly create a population with explosive, density-dependent growth. Wolves help reduce the age structure, keeping the population at a reasonable level." Clarify question: What is the key concept addressed by the question? In this question you are being asked to explain the benefits of having wolves. What type of thinking is required? This is an analysis question, you will need to break the question down into its components in order to get to the answer. Gather Content: What do you already know about the benefits of wolves in a community? What other information is related to the question? Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection 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?
If a chromosome's gene sequence is represented by the letters A?B?C?D?E?F?G before modification
and A?B?C?D?C?D?E?F?G afterward, this would be an example of a. inversion. b. deletion. c. duplication. d. translocation. e. crossing over.