The producers in aquatic ecosystems include organisms in which of the following groups?
a. cyanobacteria
b. algae
c. plants
d. photoautotrophs
e. all of the above are correct
Ans: e. all of the above are correct
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Prokaryotic binary fission includes what two main features?
What will be an ideal response?
Bacteriophages may reproduce using a(n) __________ pathway in which viral DNA becomes part of the host
chromosome. Fill in the blank(s) with the appropriate word(s).
Passive immunity can provide immunity ____
a. temporarily b. permanently
c. for months d. for many years e. for an entire lifetime
Figure 13.10
The accompanying illustration shows the F2 phenotypes from a monohybrid cross in snapdragons. What type of inheritance produces such an outcome?
A. Complete dominance B. Incomplete dominance C. Multiple alleles D. Continuous variation E. Epistasis