Question

dichotomous key worksheet
name

common name scientific name common name scientific name

1. dog 8. canary
2. shark 9. oyster
3. rose 10. mosquito
4. skunk 11. mushroom
5. turkey 12. cow
6. dolphin 13. pine tree
7. eagle 14. ivy

a. find and match the scientific names of the organisms common names using the following key:

1. animal go to 2

not an animal go to 11

1. has wings go to 3

no wings go to 6

1. has feathers go to 4

no feathers ochloerotatus taeniorhynchus

1. flies high go to 5

does not fly high meleagris gallopavo

1. often yellow serinus canaria

not yellow haliaeetus leucocephalus

1. lives in water go to 9

lives on land go to 7

1. has fluffy fur go to 8

no fluffy fur bos taurus

1. common pet canis familiaris

not a common pet mephitis mephitis

1. has fins go to 10

no fins haematopus ostralegus

1. razor sharp teeth carcharodon carcharias

pegged, pointy teeth tursiops truncates

1. green go to 12

not green go to 13

1. grows tall pinus ponderosa

does not grow tall rhus toxicodendron

1. can be poisonous boletus edulis

not poisonous rosa sylvestris

b. answer the following questions using the scientific names:

1. which organisms would you like to sing with?
2. which organisms would you like to eat?
3. which organisms would you like to play with?
4. which organisms would you stay away from?
5. which organisms have a pleasant odor?
6. which organisms have an unpleasant odor?
7. which organisms do you see during the holidays?
8. which organisms possess valuable fashion items?
9. which organisms are you likely to see on a farm?
10. which organisms are you likely to see at sea world?
11. which organisms are likely to inflict pain on you?

Explanation:

Step1: Identify singing - organism

Canaries are known for singing, and its scientific name is Serinus canaria.

Step2: Identify eating - organism

Oysters are edible, but the scientific name from the key for oyster is not given clearly. Assuming common knowledge, oyster's scientific name can be Ostrea edulis (not from the key strictly). But from the key, no clear - cut edible one is there. If we consider turkey (Meleagris gallopavo) as an option for eating.

Step3: Identify playing - organism

Dogs are common pets to play with, and its scientific name is Canis familiaris.

Step4: Identify organism to stay away from

Mosquitoes (Ochloerotatus taeniorhynchus) can spread diseases, so we should stay away from them.

Step5: Identify organism with pleasant odor

Roses (Rosa sylvestris) usually have a pleasant odor.

Step6: Identify organism with unpleasant odor

Skunks (Mephitis mephitis) are known for their unpleasant odor.

Step7: Identify holiday - organism

Pine trees (Pinus ponderosa) are commonly seen during holidays like Christmas.

Step8: Identify organism with valuable fashion items

No clear - cut organism in the key for valuable fashion items. But if we consider leather from cows (Bos taurus) for fashion items.

Step9: Identify farm - organism

Cows (Bos taurus) and turkeys (Meleagris gallopavo) are likely to be seen on a farm.

Step10: Identify Sea World - organism

Sharks (Carcharodon carcharias) and dolphins (Tursiops truncatus) are likely to be seen at Sea World.

Step11: Identify pain - inflicting organism

Sharks (Carcharodon carcharias) with their sharp teeth can inflict pain.

Answer:

1. Serinus canaria
2. Meleagris gallopavo
3. Canis familiaris
4. Ochloerotatus taeniorhynchus
5. Rosa sylvestris
6. Mephitis mephitis
7. Pinus ponderosa
8. Bos taurus
9. Bos taurus, Meleagris gallopavo
10. Carcharodon carcharias, Tursiops truncatus
11. Carcharodon carcharias