The Casparian strip is associated with the
a. epidermis.
b. vascular tissue.
c. cortex.
d. root hairs.
e. endodermis
E
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A molecular clock is
A. a clock that uses atoms for accurate time keeping. B. an estimate of the rate of accumulation of genetic divergences between two populations. C. a tool used to identify the rate of mutation, and is the same for all genes. D. a tool for studying evolution that has no real-world applications.
The most accurate distinction between learning and memory is that
A. learning is the process of acquiring new information while memory is the retention of that information over time. B. memory does not require prior learning, while new learning cannot occur without it. C. both learning and memory are the process of acquiring new information. D. both learning and memory are the retention of information over time. E. memory is the process of acquiring new information while learning is the retention of that information over time.
As CO2 builds up in the atmosphere it also accumulates in the oceans, causing acidification. This poses a challenge to marine creatures that rely on calcium carbonate deposition such as corals, mollusks, and even fish, which use it to form otoliths. Researchers investigated whether otolith deposition was impaired at low pH, and were surprised to find that otoliths were actually larger in this condition. This means that, while coping with global climate change, at least fish will still be able to maintain which sense(s)?
A. feeling pain B. vision C. taste D. olfaction E. hearing and balance 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 otoliths? 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? 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?
___ helps to transport hydrophillic substances to the interior of the cell
a. Cholesterol b. Integral membrane protein c. Peripheral membrane protein d. all of the above