Monocytes are circulating precursors of macrophages and dendritic cells
Indicate whether the statement is true or false.
Answer: TRUE
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A strong acid like HCl _____
A) dissociates completely in an aqueous solution B) increases the pH when added to an aqueous solution C) reacts with strong bases to create a buffered solution D) is a strong buffer at low pH E) dissociates completely in aqueous solutions and is a strong buffer at low pH
Mendel followed the transmission of traits through several generations in
A) frogs. B) peas. C) bacteria. D) the mustard weed.
The biologist Donald Perry discovered that rainforest birds interact in what way with the Norantea
sessilis vine?
a. Birds nest within the shelter of the thorny vine, which repels predators. b. Birds feed on the fruits of the vine, distributing the seeds around the forest in their droppings. c. Birds appear to be overfeeding on the vine's succulent fruits, probably limiting the plant's chances of long-term survival. d. Birds that feed on the nectar of the flowers inadvertently transfer pollen from one vine to another on their feet. e. Birds that feed on the nectar of the flowers inadvertently transfer pollen from one vine to another on their beaks.
What is responsible for the dispersion of excess heat from the tropics to higher latitudes?
a. Greenhouse gases b. Decreased solar radiation c. Winds, waves, and currents d. Seasonal changes in the atmosphere