Reference no: EM132816949

1. Animals, plants, and fungi are all multicellular eukaryotes. What unifying characteristics distinguish animals from members of these other two kingdoms?

2. Copy the table below into your notebook. Then place the following terms in the correct columns.

bilateral symmetry nerves present protostomes asymmetrical nerves absent deuterostomes

annelids:
chordates:
rotifers:
arthropods:
porifera:
nematodes:

3. Which body system does each of the three germ layers give rise to?

4. The Platyhelminthes are considered simple but important animals. Justify this description.

5. What five major evolutionary advances are shared by all mammals, reptiles, and birds? Explain the benefit of each advance.

6. What special feature of birds and mammals has enhanced their ability to survive in cold climates?

7. Marine ecosystems are vulnerable to human actions but often remain hidden from our view. The coral reefs in the Caribbean are subject to many human impacts and are in a general state of decline. Use the Internet and other sources to learn about the status of the Caribbean reefs.

(a) What are the major human factors that have caused their decline?

(b) What is a lionfish? How is it influencing these reefs?

(c) How is climate change expected to affect these reefs?

8. How an individual can make a practical, reasonable and attainable contribution (however small) towards protecting our earth.