AP BIOLOGY

PLANTS

CLASSIFICATION OF PLANTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following best describes a dichotomous key?
A
Uses a branching diagram called a cladogram to show relationships
B
Identifies plants by a series of choices between pairs of alternatives
C
Is the systematic arrangement of plants into groups and subgroups based on common characteristics
D
Is a type of plant classification which uses a hierarchy system for classification
Explanation: 

Detailed explanation-1: -The two most crucial aspects of a good key are that it presents two opposing options for each pair of clues, and that it gradually reduces the number of potential objects or organisms so that identification is achievable. Thus, option C is correct.

Detailed explanation-2: -Dichotomous keys help improve pattern recognition and understanding of the descriptive terminology used to classify important distinctions among plants. The following dichotomous key can be used outdoors to classify a range of plants by type, growth habit, and reproductive method.

Detailed explanation-3: -Which best describes a dichotomous key? Each step has two choices.

Detailed explanation-4: -Leaves are often the basis for identifying plants since they are so easily observed. They usually consist of two parts, the blade, the wide or more obvious part of a leaf, and the “stalk” or petiole by which the blade is attached to the stem.

There is 1 question to complete.