In a Reflex Arc,the Coordination Between Contraction of Certain Muscles

question 51

Multiple Choice

In a reflex arc,the coordination between contraction of certain muscles and relaxation of others is mediated by ____.​

• A)glial cells
• B)​motor neurons
• C)​sensory neurons
• D)interneurons

Understand the characteristics and processes of asexual reproduction in plants.

Recognize the technology and techniques used in the propagation of commercial plants, such as tissue culture.

Identify the environmental and biological triggers of flowering in plants, including the role of vernalization and photoperiods.

Distinguish between the different structures involved in asexual reproduction in plants.

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Definitions:

PEM

Protein-Energy Malnutrition, a condition resulting from a diet lacking in adequate calories and protein.

Marasmus

A wasted, potentially lethal body condition caused by inadequate nutrition and characterized by painful thinness.

Essential Nutrients

Vital substances required for normal body functioning that must be obtained from the diet because they are not synthesized by the body in sufficient amounts.

Myelination

The process of forming a myelin sheath around the axons of neurons, which is critical for the proper functioning of the nervous system.