A Difference Between a Morula and a Blastula Is That

question 61

Multiple Choice

A difference between a morula and a blastula is that the:

• A)morula is a solid ball of tightly packed cells, whereas the blastula has a cavity in the center.
• B)blastula has fewer cells than the morula.
• C)morula has a hollow center, but the blastula doesn't.
• D)morula is a well-developed embryo, and the blastula is an earlier stage of development.

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Definitions:

High Tides

Periodic rise and fall of sea levels caused by the gravitational forces exerted by the moon and sun in combination with the rotation of Earth.

Spinning Globe

A representation of the Earth that rotates on an axis, often used as a model to illustrate global geography and rotation.

Moon's Gravity

The gravitational force exerted by the Moon, affecting tides on Earth and the motion of spacecraft and objects on the Moon's surface.

Wave Action

The movement and force of water in the form of waves, which can shape coastlines and erode or deposit materials.