The only epidermal cells with chloroplasts are:a
stomata.
b. stoma.
c. parenchyma.
d. guard cells.
e. all of these
D
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Keystone species can have significant influences over several populations in a community through:
A. their ability to leave their environment relatively unchanged. B. their large body sizes. C. their effect on high amounts of biomass and energy transfer between populations. D. their roles as prey species for predator populations in the community. E. their avoidance of antagonistic interactions.
Which of the following is false regarding water's specific heat?
A) The specific heat of water is 1.0 calorie per gram. B) Heat applied to water must initially break a number of hydrogen bonds. C) Water's high specific heat has a temperature-buffering effect. D) Water gains and loses heat more slowly than most other solvents do. E) The specific heat of water is similar to most liquids.
If your original DNA strand is ACTTTCCGA, what would the messenger RNA strand look like?
1.TGAAAGGCT 2.TCGGAAAGT 3.UGAAAGGCU 4.AGCCUUUCA
Who used a compound microscope to see chambers within cork and named them cells?
a. Anton van Leeuwenhoek b. Robert Hooke c. Matthias Schleiden