Sensory signals that trigger release of saliva are an example of how the nervous system works with which other system?
1.endocrine
2.cardiovascular
3.sensory
4.digestive
5.muscular
4
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In what way do nitrogen compounds differ from other minerals needed by plants? Only nitrogen _____
A) can be lost from the soil B) can be provided by symbiotic bacteria C) is needed for protein synthesis D) is held by cation exchange capacity in the soil E) can be absorbed by root hairs
When compared to the solution, the egg that gained weight was ______.
Three (3) eggs are boiled and all weigh 2g. The eggs are placed in a 15% solution of NaCl and reweighed after 30 minutes.
A. Hypertonic
B. Hypotonic
C. Isotonic
Clarify Question
· What is the key concept addressed by the question?
· What type of thinking is required?
Gather Content
· What do you know about osmosis? What other information is related to the question?
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 presence of cyanobacteria ____ in rock dating to 2.5 billion years ago is direct evidence of the first water-splitting
photosynthesizers.
a. microfossils b. biosignatures c. stromatolites d. cytoskeletons e. endosymbiont
When a farmer grows cotton containing the gene for Bt toxin, insects that are resistant (rr) survive and reproduce. These insects were resistant because
A. the insecticide caused mutations to generate resistant alleles. B. they inherited the alleles that made them resistant. C. the insects wanted to survive the insecticide and mutated their DNA. D. by random chance some insects did not die from the insecticide. E. the insects were able to produce gametes that were resistant to the insecticide.