(I There Are Two Types of Variables-Quantitative and Qualitative

question 26

Multiple Choice

(i. There are two types of variables-quantitative and qualitative. (ii) A Qualitative variable is nonnumeric and we are usually interested in the number or percent of the observations from each category.
(iii) Quantitative variables can be further divided into discrete and continuous variables.

• A) (i), (ii) and (iii) are all correct statements.
• B) (i) and, (ii) are correct statements but not (iii).
• C) (i) and, (iii) are correct statements but not (ii).
• D) (ii) and, (iii) are correct statements but not (i).
• E) Only statement (ii) is true.

Comprehend the basis of natural selection and its effects on population dynamics within an ecosystem.

Design experiments to test hypotheses about organism behavior and ecological interactions.

Understand the roles of various organisms in the energy cycle and their impact on ecosystem dynamics.

Creatively apply knowledge of biology to hypothesize about the characteristics of newly discovered or conceptual organisms.

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Definitions:

Naked Mole-Rat

A small rodent native to parts of East Africa, known for its nearly hairless body and ability to live in highly structured, eusocial communities similar to those of some insect species.

Nonbreeding

Refers to periods or conditions under which an organism does not engage in reproductive activities, often influenced by environmental factors, life history traits, and physiological status.

Sterile Workers

Individuals, particularly in insect colonies like bees, ants, and termites, that cannot reproduce but perform tasks for the colony.

Eusocial

Characterizing a high level of social organization in animals, where there is cooperative brood care, reproductive division of labor, and overlapping generations.