What structure of angiosperms attracts animals as a way to disperse seeds?

a. Sepals
b. Anther
c. Flower
d. Fruit


Answer: d. Fruit

Biology & Microbiology

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Pasteurization results in the sterilization of food products

Indicate whether this statement is true or false.

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The rapid expansion of angiosperms late in the

Mesozoic era appears to be related to their coevolution with a. dinosaurs. b. gymnosperms. c. insects. d. mammals. e. birds.

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In the nitric oxide signaling pathway, nitric oxide activates an enzyme that can convert many molecules of GTP into molecules of cGMP. cGMP is a small molecule that can diffuse through the cytoplasm and bind to an enzyme called protein kinase G (PKG). Binding of cGMP to PKG leads to a change in the confirmation of PKG that leads to its activation. What type of signaling molecule is cGMP?

A. adapter protein B. enzyme C. second messenger D. scaffold

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On the posterior surface of the superior (1st part) of the duodenum we can find all the following structures except:

A. Inferior Vena Cava B. Portal Vein C. Gastroduodenal artery D. Aorta E. Bile duct

Biology & Microbiology