The cell keeps pH, temperature, and ion concentrations within a narrow window in order to maintain ______________
Fill in the blanks with correct word
homeostasis
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Without elephants, African grasslands convert to forests or to shrublands. Which of the following phrases are true statements about the elephant? Check all that apply.
_____ The elephant is a keystone species. _____ If elephants went extinct, other species in the area would be unaffected. _____ Elephants graze on young shrubs and trees. _____ Elephants are the most abundant species on the grassland. _____ Grazing antelope depend on the presence of the elephant. Additional: 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 the concept of keystone species? 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 genomes of phiX174 and fd are
A. double stranded DNA. B. single stranded DNA. C. single stranded RNA. D. double stranded RNA.
All of the following participate in apoptosis except
A) caspases. B) death signals. C) mitochondria. D) Bcl-2. E) APC ubiquitin ligase activity.
Seeds were important in the evolutionary success of _____________, because they increased the success (to survive and reproduce) of the plant's offspring.
A. Bryophyte B. Angiosperms C. Pine trees D. Club mosses E. More than one above is correct