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| Animals are eukaryotic or prokaryotic? |
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| In terms of cell numbers, how may animals be classified? |
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| How mat animals be characterized by how they get their carbon? |
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Definition
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| What are distinct features of animals compared to other eukaryotes. |
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Definition
- Most obtain food by ingestion and digest internally
- Animals lack cell walls
- Often have nervous and muscular tissue |
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| Do animals have cell walls? |
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Definition
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| Qhat kind of tissue do most animals have in comparison to most eukaryotes? |
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Definition
| Nervous and muscular tissue |
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Term
| How do animals obtain and ingest food? |
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Definition
| They obtain food by ingestion and digest food internally. |
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Term
| How do most animals reproduce: sexually or asexually? |
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Definition
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| True or false: all animals reproduce sexually. |
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Definition
| False: most animals reproduce sexually. |
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| Is the life cycle of animals characterized by alternation of generations? |
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Definition
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| Why is the life cycle of animals not characterized by alternation of generations? |
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Definition
| There is no multicellular haploid stage |
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Term
| What are the "ingredients" for fertilization in animals and how do these "ingredients" move? |
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Definition
| Typically flagellated sperm fertilize non-motile egg. |
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| What results from fertilization for animals? |
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| How does development begin in animals? |
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| Mitosis of the zygote produces what? |
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| What happens to the blastula? |
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| What is produced from the infolding of cells of the blastula? |
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Definition
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Definition
| A pouch of infolded cells |
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Term
| What develops from the gastrula? |
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Definition
| Ectoderm, endoderm, and, in some cases, mesoderm tissue |
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Term
| What form do most animals species have during development? |
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| Sexually immature form of animal with a different appearance from the adult. |
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| developmental change in form toward mature adult. |
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| What might be different about the larva from the adult form? |
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Definition
| The larva may have a different habitat and food source. |
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Term
| What are the probably the closest relatives to animals? |
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Definition
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Definition
| Protists that are probably the closest relative to animals |
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Term
| What suggests that choanoflagellate are the most closely related to animals? |
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Definition
| Genetic and morphological data. |
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Term
| What kinds of symmetry do animals have? |
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Definition
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Definition
| Body parts radiate from the center |
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Term
| What does radial symmetry lack? |
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Definition
| Top, bottom, left and right. |
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Term
| What is an example of a radial animal? |
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Definition
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Term
| How do radially symmetric animals move? |
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Definition
| Trick question -- most are sedentary or passively drifting. |
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Term
| How do radial symmetric animals relate to their environment? |
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Definition
| They meet the environment equally on all sides. |
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Definition
| Symmetry between left and right sides |
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Term
| What is an example of an animal with bilateral symmetry? |
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| What are the distinct regions of bilateral symmetry? |
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Definition
| Anterior, Posterior, Dorsal, Ventral. |
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| True or false: Most animals with bilateral symmetry are sedentary. |
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Definition
| False: Most bilaterally symmetric animals are active. |
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Term
| How do bilaterally symmetric animals travel through their environment? |
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Definition
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Term
| Why do bilaterally symmetric animals travel headfirst through their environment? |
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Definition
| Protective and sensory organs are there. |
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Term
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Definition
| Specialized cells with common function |
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Term
| The phases of animal early development, in order, are: |
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Definition
| Zygote, Blastula, Gastrula and, most of the time, Larva. |
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Term
| Which animal phylum lacks true tissue? |
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Definition
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Term
| Which phyla have true tissues |
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Definition
| All animal phyla except Phylum Porifera |
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Term
| Phylum Porifera is commonly known as... |
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| Animals that contain two tissue types. |
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Term
| What are examples of diploblastic animals? |
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Definition
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Term
| Animals with radial symmetry are ______________ and animals with bilateral symmetry are ____________. |
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Definition
| Diploblastic, triploblastc |
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Term
| What are the two tissue types of diploblastic organisms? |
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Definition
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Definition
| Outer covering and central nervous system in some phyla. |
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Definition
| Lines the digestive tract |
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Definition
| Animals that contain three tissue layers |
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| What is the third tissue type unique to triploblastic animals? |
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Definition
| Muscle and most other internal organs |
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Definition
| Fluid or air-filled space between the digestive tract and body wall. |
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Term
| What does the body cavity do? |
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Definition
| Cushions internal organs and enables them to grow and move independently. |
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Term
| What are the categories by which an organism may be classified by tissues? |
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Definition
| Acoelomate, Pseudocoelomate and Coelomate |
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Term
| What are the conditions for an organism to be classified by tissues? |
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Definition
| it must be an animal with all three tissue layers. |
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Definition
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| What is an example of an Acoelomate? |
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Definition
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Definition
| "False" body cavity that is not completely lined with mesoderm tissue. |
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| What is an example of a pseudocoelomate? |
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Definition
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| True body cavity that is completely lined with mesoderm tissue |
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Term
| What is an exmaple of a coelomate? |
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Definition
| Cavity of the grastula that becomes the gut. |
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Term
| The cavity of the grastula that forms the gut is called... |
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Definition
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Term
| What are the developmental modes of animals? |
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Definition
| Protosome and Deuterostome development. |
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Term
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Definition
| Pouch-like indentation in the grastula stage |
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Term
| What happens in protosome development? |
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Definition
| Blastopore becomes the mouth |
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Term
| The opening in the grastula stage is called... |
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Definition
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Term
| What happens during deuterostome development? |
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Definition
| The blastopore becomes the anus. |
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Term
| What is animal phylogeny based on? |
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Definition
| Morphology, development, genetics and other molecular data. |
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