process of photosynthesis
What will be an ideal response?
1.provides most of the energy required by living things on earth
2. results in the release of oxygen into the atmosphere
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Filoviruses (such as Ebola virus) that cause severe hemorrhagic fevers generally have high ________ but low ________
A) incidence / prevalence B) prevalence / mortality C) mortality / morbidity D) morbidity / mortality
A cross in which a researcher investigates the patterns of inheritance of a single trait is called a ____
A. monohybrid cross B. dihybrid cross C. two-factor cross D. cross-fertilization E. self-fertilization
What features of the respiratory system protect it from infection?
A. Nasal hairs B. Macrophages C. Mucus D. Cilia E. All of the choices are correct.
You are studying the synthesis of Molecule X in prokaryotes when you make the following observations: • When Molecule X is present in the prokaryotes’ environment, synthesis does not occur. • Molecule X synthesis increases when Molecule Z is present in the cell. • Molecule Z is never found outside of prokaryotic cells. Which statement can be supported by your observations?
a. Molecule Z is a repressor b. Molecule Z is an inducer c. Molecule Z is an activator d. Molecule Z is an operon