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Animals (5)
Eukaryotes
Multicellular
Heterotrophic
Mobile
Have nerves and muscles
How does multicellularity in animals effect size and specialization?(2)
Size- exploit new habitat
Specialization- division of labor
Biological macromolecule that provides external support and connects cells to one another
Proteins
Key concept in biology
Surface to volume ratio
Larger organisms have relatively less skin, why is this important
They are still able to do the functions
Because larger animals can't get enough nutrients and gases to interior body across skin, what do they need?
Transport systems
Theory of how multicellularity occured (2)
Mutations triggered gastrulation events
Led to layers and specialization
What effect does infolding have on animals?
Allows cells to get larger
Choanoflagellates and collar cells are nearly indistinguishable, why is this important? (2)
Shows a relationship between animals and choanoflagellates
Common ancestor
During what major event did animals evolve from protist ancestor?
Cambrian explosion
Mitotic division of fertilized eggs
Cleavage
2 layers
Diploblastic
3 layers
Triploblastic
Germ layers- what happens to the fertilized cell? From this product what is formed, and what it the final result? (3)
Fertilized cell divides
Dividing cells form layers
Layers form specific tissues and organs
Hox genes (2)
Control expression of genes in embryology
Common modules of DNA in all animals but sponges
Genes that control development by influencing the rate, timing and spatial pattern of change in an organism
Hox genes
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Author
lduran8
ID
339587
Card Set
Description
Updated
2018-04-16T13:23:29Z
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