Individuals in the population grouped according to levels of maturity define the population's ____.
A. carrying capacity
B. age structure
C. density
D. size
E. birth rate
Answer: B
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Which of the following statements best distinguishes scientific hypotheses from scientific theories?
A) Hypotheses describe and theories explain. B) Hypotheses explain and theories describe. C) Hypotheses are usually narrower in scope; theories have broader explanatory power. D) Hypotheses are used in experiments. Theories are not tested. E) Hypotheses are generally supported by more evidence than theories.
The general purpose of the synaptonemal complex is to __________
A. provide a link between homologous chromosomes in meiosis. B. enable the reformation of the cell wall during cytokinesis. C. separate the sister chromatids during anaphase. D. independently assort the chromosomes during metaphase of meiosis. E. None of the answers are correct.
If an E. coli strain typically has 50 loop domains, how many total base pairs might this bacteria have in its chromosome?
A. 500–2,000 B. 5,000–20,000 C. 50,000–80,000 D. 200,000–450,000 E. 5 billion
The stage of viral replication in which viral components are put together to form new viruses is:
a. Release b. Assembly c. Attachment d. Penetration e. Synthesis