Exam 1: Invitation to Biology

About twelve to twenty-four hours after the previous meal, a person's blood-sugar level normally varies from 60 to 90 milligrams per 100 milliliters of blood, though it may rise to 130 mg/100 ml after meals high in carbohydrates.That the blood-sugar level is maintained within a fairly narrow range despite uneven intake of sugar is due to the body's ability to carry out

Which of the following can be changed based on new evidence?

Which is the smallest unit of life that can exist as a separate entity?

All of the following will strengthen a theory EXCEPT

The results of the butterfly experiment

The most inclusive level of organization listed here is a(n)

The hierarchical system of nomenclature

The animals used in the text to show variation in domesticated forms are

Which represents the lowest degree of certainty?

Each cell is able to maintain a constant internal environment.This condition is called

The principal point of Darwin's theory of evolution by natural selection is that

_________ means judging information before accepting it as fact.

On the illustration, "A" and "B" should be labeled respectively

A well-tested hypothesis that has not been disproved is called a

The study of the observable is

In order to arrive at a solution to a problem, a scientist usually conducts one or more

Of the following, which is the first explanation of a problem? (a testable answer to the question)

A scientific name consists of which of the following? I.family name II)genus name III)species name

Homeostasis provides what kind of environment?

The conversion of solar energy to chemical energy is known as