Animal Development and Symmetry

Which of the following organisms would qualify, scientifically speaking, as an animal?

• unicellular yeast

• paramecium

• marine sponge

• E. coli

The image above represents a typical animal cell. Which characteristic supports the definition of an animal in this picture?

• prokaryotic

• eukaryotic

• cell wall

• loose genetic material (not enclosed within a nucleus)

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NGSS.MS-LS1-1

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One of the defining differences between these two critters is the way in which they obtain food. Unlike the bee, the Venus fly trap is a/an...

• decomposer

• heterotroph

• autotroph

• bacterium

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NGSS.HS-LS1-5

Which of the following pairs is NOT a correct match between a KINGDOM and a representative example?

• Animalia/Sponge

• Plantae/Venus Fly Trap

• Bacteria/E. coli

• Fungi/Paramecium

• Protista/Algae

If you found a slimy green (contains chlorophyll) pond material and observed it under the microscope to find that it was a single-celled critter with an organized nucleus, why would you NOT place this organism in the Kingdom Animalia?

• It is a eukaryote.

• It is heterotrophic.

• It is photosynthetic.

• It is multicellular.

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NGSS.MS-LS1-1

NGSS.MS-LS1-2

NGSS.MS-LS1-6

A series of rapid cell division (w/o growth) that follows fertilization in animals is the stage of development called ____.

• sexual reproduction

• cleavage

• asexual reproduction

• binary fission

In more complex animal development, there are ___ germ layers that arise during early development.

• 2

• 3

• 4

• 5

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NGSS.HS-LS1-2

NGSS.HS-LS1-4

The outermost layer of the gastrula is called the ____.

• endoderm

• mesoderm

• ectoderm

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NGSS.HS-LS1-2

NGSS.HS-LS1-4

The inner most layer that develops in the gastrula is called the _____.

• endoderm

• mesoderm

• ectoderm

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NGSS.HS-LS1-2

NGSS.HS-LS1-4

The middle layer that develops in the gastrula is called the _____.

• endoderm

• mesoderm

• ectoderm