An organism that produces its own food by the process of photosynthesis is called:
A. Heterotroph
B. Autotroph
C. Herbivore
D. Consumer
Ans: B. Autotroph
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The lactose analog isopropyl-beta-D-thio-galactoside (IPTG) is often used to regulate gene expression systems in bacteria. IPTG does not act as a substrate for beta-galactosidase, but can bind to, and inactivate, the repressor. In this case, IPTG serves as a(n)
A. inducer. B. repressor. C. DNA-binding protein. D. operon. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about prokaryotic transcriptional regulation? Consider Possibilities · Consider the different answer options. Which can you rule out? 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?
The part of the brain that integrates sensory input from the eyes, ears, muscles, and joins with motor information from the cerebral cortex is the
A. brain stem. B. cerebrum. C. diencephalon. D. cerebellum.
Describe the value of using twins in the study of questions relating to the relative impact of heredity versus environment
What will be an ideal response?
Answer the following questions true (T) or false (F)
1. Because they form linings or coverings, epithelial tissues always face an open area or an exterior environment. 2. Smooth muscle may be moved by either voluntary or involuntary control depending on location in the body. 3. Subcutaneous fat tissue in humans is located mainly in the dermis.