Identification - Dichotomous Keys
7 Questions
| Attempts: 3372
Questions and Answers
- 1.
An illustration of two fish is provided. Which paired statements could be used to know the difference between the fish using a dichotomous key?- A.
Eyes on side of head. Eyes on top of head.
- B.
One set of dorsal fins. Two sets of dorsal fins
- C.
Mouth at front of head. Mouth on underside of head.
- D.
Rounded caudal fin. Forked caudal fin.
- 2.
An illustration of four leaves and a dichotomous key are provided. Use the dichotomous key to identify which of the leaves is from the magnolia tree.
- A.
Leaf 1
- B.
Leaf 2
- C.
Leaf 3
- D.
Leaf 4
- 3.
A table of arachnid and insect characteristics is shown. Which characteristic could be used to distinguish between arachnids and insects?
- A.
Jointed legs
- B.
Body segments
- C.
Presence of eyes
- D.
Presence of antennae
- 4.A scientist discovers a new plant in the jungle. Which of the following observations of the plants characteristics would be useful in determining its identity with a dichotomous key?
- A.
It was discovered in the summertime
- B.
It is wet from a recent rain storm
- C.
Its leaves curl up on the edges
- D.
It is eaten by native jungle ants
- 5.
An illustration of three beetles is given. A student examines three different species of beetles that are related. What structure is identical in all three beetle species?
- A.
Antennae length
- B.
Placement of eyes
- C.
Markings on abdomen
- D.
Width of thorax
- 6.
A dichotomous key is provided. A fish is caught that has eyes on the side of its head and a wide body covered in spots. What kind of fish is this?
- A.
Cornetfish
- B.
Flounder
- C.
Puffer fish
- D.
Snapper
- 7.
An illustration of an organism and a dichotomous key are given. What is the organism?
- A.
Arachnid
- B.
Dragonfly
- C.
Fruit fly
- D.
May fly
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