Answer the following statements true (T) or false (F)
1.Jellyfish have incomplete digestive tracts.
2.Autotrophs make their own food using energy captured from the sun.
3.An ectotherm with a complete digestive tract might eat infrequently, eliminating from a different place from the one where it ingested.
4.Larger animals generally need more energy and building blocks than do smaller animals.
5.If a doctor designs an operation intended to help victims of stomach cancer, who have lost most of their stomachs, by fusing the remaining stomach tissue with the esophagus, the main problem is likely to be damage to the esophageal tissue from stomach acid.
1.TRUE
2.TRUE
3.TRUE
4.TRUE
5.TRUE
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An unscrupulous dog breeder has been selecting for dogs that have very large litters, with the goal of maximizing profits. Why might this strategy be counterproductive?
A. It will cost too much money to feed all those puppies. B. Litter size is not influenced by genetics. C. The puppies from large litters are likely to be malnourished, and the mother will have few resources to devote to future litters. D. Intrauterine cannibalism will reduce the number of puppies. 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 the risks versus benefits of producing a large little of puppies? 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?
The equation AB + H2O ? A + B would be catalyzed by which of the following classes of enzymes?
A) oxidoreductases B) transferases C) hydrolases D) ligases E) isomerases
Which of the following is not true of the Chloroplastida (green algae)?
A. They have chlorophylls a and b. B. They store carbohydrates as starch. C. They are found in fresh and salt water. D. Their cell walls contain chitin.
Why are some people concerned about hormones in cattle feed?
What will be an ideal response?