Kevin is studying predator-prey interactions. One day he notices a spider eating a cricket caught in its web. Later that day, a bird eats the spider. How many consumers are there is this scenario?4
What will be an ideal response?
Answer: 3
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Which of the following processes occurs in the cytoplasm of a eukaryotic cell?
a. translation b. DNA replication and transcription c. transcription d. DNA replication e. translation and transcription
Explain why a high fever (over 105ºF) can be fatal for a person. Consider your knowledge of enzyme structure and the interactions between a specific enzyme and its substrate
What will be an ideal response?
An hypothesis currently getting a lot of
attention concerning the origin of biological molecules is that they originated a. in hot springs. b. near volcanoes. c. near hydrothermal oceanic vents. d. in salt lakes. e. in tidal pools.
You had a cold last month and you caught another one this month from your daughter. What is the most likely cause
of this? a. Memory cells were not formed as a response to the first cold. b. The antibodies formed as a response to the first cold were degraded. c. The two cold viruses are significantly different. d. Your T cells are not working properly. e. Your antigen-presenting cells do not recognize the second cold virus.