Which of the Following Is TRUE About a Comet That

question 80

Multiple Choice

Which of the following is TRUE about a comet that is on an elliptical orbit around the Sun?

• A) The comet's speed is greatest when it is farthest from the Sun.
• B) The comet's speed is greatest when it is nearest the Sun.
• C) This comet's speed is zero.
• D) The comet's speed is constant because its mass and the Sun's mass stay approximately the same.

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Definitions:

Monocot Embryo

An embryo from a monocotyledonous plant, characterized by having a single cotyledon (seed leaf).

Coleoptile

The protective sheath covering the emerging shoot in monocotyledons, such as grasses and cereals.

Eudicot Cotyledon

One of the two major groups of angiosperms (flowering plants) characterized by embryos with two cotyledons or "seed leaves."

Triploid Endosperm

A tissue in seeds of flowering plants that is formed during fertilization and nourishes the developing embryo with a triple set of chromosomes.