Two Imaginary Spherical Surfaces of Radius R and 2R Respectively

question 64

Multiple Choice

Two imaginary spherical surfaces of radius R and 2R respectively surround a positive point charge Q located at the center of the concentric spheres. When compared to the number of field lines N₁ going through the sphere of radius R, the number of electric field lines N₂ going through the sphere of radius 2R is

• A) .
• B) .
• C) N₂ = N₁.
• D) N₂ = 2N₁.
• E) N₂ = 4N₁.

Understand the limits and considerations in molecular phylogenetics.

Grasp the concepts of gene flow, genetic drift, and their effects on allele frequencies.

Comprehend methods for constructing phylogenetic trees and their applications.

Understand the mechanisms that can create discrepancies between gene histories and species histories.

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Definitions:

Hypothalamus

A region of the brain below the thalamus that coordinates the autonomic nervous system and the activity of the pituitary, controlling body temperature, hunger, and other essential functions.

Oxytocin

A hormone that plays roles in social bonding, sexual reproduction, childbirth, and the period after childbirth.

Nursing

The profession or practice of providing care for the sick and infirm.

Blood Pressure

The pressure of circulating blood on the walls of blood vessels, often measured for diagnosis since it is closely related to the force and rate of the heartbeat and the diameter and elasticity of the arterial walls.