When you eat a hamburger, you are the
A. primary consumer.
B. decomposer.
C. producer.
D. secondary consumer.
E. tertiary consumer.
Answer: D
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Which of the following is not true of viruses?
A. Viruses replicate by binary fission. B. Viruses are acellular. C. Viruses consist of one or more molecules of DNA or RNA enclosed in a coat of protein and sometimes in other more complex layers. D. Viruses can exist in two phases: intracellular and extracellular.
In an HIV infection the TH cells and macrophages are NOT commonly infected
Indicate whether the statement is true or false.
The blight-resistant strains of rice are examples of __________
a. GMOs b. plasmids c. vectors d. genetic markers
The probability that a boy whose mother is heterozygous for an X-linked trait inherits the recessive allele is
A) 1/16. B) 1/8. C) 1/4. D) 1/2.