The Mammalian Blastocyst Differs from a Frog Blastula in That

question 137

Multiple Choice

The mammalian blastocyst differs from a frog blastula in that the mammalian blastocyst

• A) lacks a blastocoel.
• B) is produced via cleavage.
• C) forms after a solid ball of cells has formed.
• D) produces both the embryo and support structures, such as the embryonic side of the placenta.
• E) lacks blastomeres.

---

Definitions:

Thyroglobulin

A protein produced by the thyroid gland, serving as a precursor to thyroid hormones.

Beta Endorphins

Natural peptides produced by the body that act as pain relievers and induce feelings of pleasure or euphoria.

Long-distance Runner

An athlete who specializes in running races over distances longer than 3000 meters, focusing on endurance over speed.

Perception of Pain

The subjective experience and interpretation of pain signals by the brain, influenced by various factors.