Question

1A. A colleague calls from Asia with a discovery of a new species. She describes the adult species as being a bilateral, coelomate organism. Which phylum could this organism belong? Select all that apply.
Question options:

Porifera

Ctenophora

Cnidaria

Platyhelminthes

Nematoda

Mollusca

Annelida

Arthropoda

Chordata

Echinodermata

Question options:1B. A week later, you get an email with more of a description. She then describes the organism being aquatic, specifically marine, a complete digestive tract, a closed circulatory system. Which phylums could this organism belong?

Porifera

Ctenophora

Cnidaria

Platyhelminthes

Nematoda

Mollusca

Annelida

Arthropoda

Echinodermata

Chordata

Question options:1C. In a final email, she then tells you that this organism is segmented . Which phylum does this organism belong?

Cnidaria

Annelida

Mollusca

Echinodermata

Holothuroidea

Cephalopoda

Oligochaeta

Hydrozoa

Polychaeta

Uniramia

Aves

Bivalvia

Nematoda

Chordata

Insecta

Matching.
____
Arthropoda
____
Porifera
____
Reptilia
____
Mollusca
____
Actinopterygii
____
Mammalia
____
Aves
____
Cnidaria
____
Chondrichthyes
____
Nematoda

1.
This group is by far the most successful animal group and have an exoskeleton
2.
The earliest fish with a skeleton and a jaw
3.
A group that can regulate body temperature and has feathers.
4.
Internal development of embryos in the placenta and have hair
5.
This animal is the first multicellular animal of the groups discussed in this course
6.
A shell is usually present at some stage of development
7.
The most successful fish with bony fins
8.
This group has stinging cells and radial symmetry in adults
9.
First animal with internal fertilization and the first with an amniotic egg
10.
This is a pseudocoelomate with a complete digestive tract

Question options:Select all classes with an incomplete digestive cavity.

Cestoda

Trematoda

Asteroidea

Hydrozoa

Gastropoda

Question options:Select all classes with a closed circulatory system.

Turbellaria

Aves

Insecta

Cephalopoda

Hydrozoa

Answer 1

Answer 1A;

Mollusca

Annelida

Arthropoda

Chordata

Echinodermata

Explanation:

A colleague calls from Asia with a discovery of a new species. She describes the adult species as being a bilateral, coelomate organism. These organisms could belong to Phylum Mollusca, Annelida, Arthropoda, Chordata and Echinodermata.

Answer 1B:

Annelida

Explanation:

A week later, I get an email with more of a description. She then describes the organism being aquatic, specifically marine, a complete digestive tract, a closed circulatory system. This organism could belong to phylum Annelida.

Answer 1C:

Insecta

Explanation:

In a final email, she then tells me that this organism is segmented. This organism belongs to phylum arthopoda under Insecta.

Matching:

Arthropoda— 1. This group is by far the most successful animal group and have an exoskeleton
Porifera— 5. This animal is the first multicellular animal of the groups discussed in this course
Reptilia— 9. First animal with internal fertilization and the first with an amniotic egg
Mollusca— 6. A shell is usually present at some stage of development
Actinopterygii— 7. The most successful fish with bony fins

Mammalia— 4. Internal development of embryos in the placenta and have hair

Aves— 3. A group that can regulate body temperature and has feathers
Cnidaria— 8. This group has stinging cells and radial symmetry in adults

Chondrichthyes— 2. The earliest fish with a skeleton and a jaw
Nematoda— 10. This is a pseudocoelomate with a complete digestive tract.