Which naturally occurring plant hormone has a major role in the phototropic response of plants?
A. Ethylene
B. Auxin
C. Abscisic acid
D. Gibberellin
E. 2, 4-D
Answer: B
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Chlamydia trachomatis is commonly transmitted by sexual activity.
Answer the following statement true (T) or false (F)
Woolly adelgids are insects that were accidentally brought to the United States from Japan. How have they impacted the ecosystems here in the United States? Select all that may apply.A) They infect hemlock trees, causing their quick deaths.B) Less dense shrubs replace dead hemlocks, reducing soil moisture and temperature.C) Amphibians are displaced because of soil moisture and temperature changes.D) Mature trees replace hemlocks, increasing shade cover to the underbrush below.E) As soil moisture and temperature changes, amphibian diversity increases.
What will be an ideal response?
Which of the following is true of glycolipids?
A) Glycolipids are usually found on the exterior surface of the plasma membrane. B) Glycolipids are found in plastids and are used to store energy. C) Fructose and sucrose are often part of glycolipids. D) Glycolipids contain steroids. E) Usually more than 10 sugar units are attached to the glycolipid.
The most recent techniques developed in the biological sciences allow the manipulation of DNA with the ultimate goal of intervening directly with the _______ fate of organisms.
A. genetic B. developmental C. adult D. mitotic