Fertilization in all animal species results in formation of a fertilization envelope which:
A. Prevents the zygote from dehydrating
B. Prevents more sperm from fertilizing the same egg
C. Permits the egg to implant in the uterine wall
Answer: B. Prevents more sperm from fertilizing the same egg
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During an ecology field trip to a lake, your professor asks you to take temperature readings at various depths and record your data. At 5 meters, you note a temperature of 25°C and at 10 meters you record a temperature of 10°C. Readings at 20 meters and below stay fairly consistent around 8°C. The temperature readings of 25°C, 10°C, and 8°C represent the:
A. epilimnion,thermocline, and hypolimnion. B. epilimnion,hypolimnion, and thermocline. C. hypolimnion, epilimnion,and thermocline. D. hypolimnion, thermocline,andepilimnion. E. thermocline,epilimnion, and hypolimnion. 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 thermal stratification? 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?
Reptiles are very efficient in conserving water during excretion
Indicate whether the statement is true or false
Which letter in the figure above represents the limnetic zone?
a. A b. B c. C d. D e. E
Hydrocarbons are organic molecules that contain only ______.
A. components found only in crude oil B. carbon and hydrogen atoms C. carbon atoms D. carbon, hydrogen, and oxygen atoms