Dichotomas Keys uwu

Question 1

A key is a tool used to _______________ organisms based on their ________________/ __________________ features. A ________________________ is a common type of key.

Answer 1

Identify, structural, physical, dichotomous

Question 2

A dichotomous key provides a __________________________________________ at each step. By choosing one of the two features, the organisms can be identified ______________________.

Answer 2

Pair of contrasting features

Step by step

Question 3

How to construct a dichotomous key

1. _____________ the organisms to be identified
2. _____________ some ______________ ___________ that are different among the organisms to be identified
3. _____________ one pair of ____________________ _______________ to divide the organisms into two groups
4. For each group, choose another ___________ to further divide the organisms into two groups.
5. Repeat step ______ until all the organisms are sorted.
6. Draw a line from the __________________________________________ from the rest and write down the name of the organism

Answer 3

Fix, list, structural features
Choose, contrasting features, feature
4, last feature that distinguished an organism

Question 4

When constructing a good dichotomous key, we should __________________ the physical structural features of organisms, ____________ features that _____________________________ and avoid _______________________ that cannot always ________________________

Answer 4

Consider
Avoid, change over time
Internal features, be seen externally

Question 5

Two types of dichotomous keys:

1. _____________________ _______
2. _____________________ _______

Answer 5

Branch-type key, paired-statement key