Which of the following countries have an age structure that most resembles a pyramid?

A) United States
B) Japan
C) Egypt
D) none resemble a pyramid


C

Biology & Microbiology

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Which of the following properties is likely to be found in a pioneer colonizer of a biofilm on an artificial joint implant?

A. The ability to grow at thermophilic body temperature,(37ºC) B. Surface structures for attaching to tissue C. No susceptibility to reactive oxygen species like peroxides D. The ability to use the titanium from the implant as an energy source

Biology & Microbiology

In addition to chlorophylls, light-harvesting antennae include other pigments. What is the benefit of these additional pigments?

A. Increased structural stability of the antenna B. Narrower range of wavelength reflection C. Lower anti-oxidant capacity D. Enhanced resonance transfer E. Tighter binding of the antennae to the thylakoid

Biology & Microbiology

In what groups of vertebrates can you find internal fertilization? (Select all correct choices.)

A. mammals B. reptiles C. birds D. fish E. frogs

Biology & Microbiology

Which of the following statements is true of

metabolic pathways? a. They are enzyme-mediated sequences of reactions. b. They may be biosynthetic or degradative. c. Photosynthesis is a biosynthetic pathway. d. Catabolism is a degradative pathway. e. All of these statements are true

Biology & Microbiology