Term
| major divisions of animals |
|
Definition
| protostomes and dueterostomes |
|
|
Term
|
Definition
| dorsal brain and ventral nerve cord |
|
|
Term
|
Definition
| dorsal brain and dorsal nerve cord |
|
|
Term
|
Definition
| all have nephridia for waste excretion |
|
|
Term
|
Definition
| lophotrocozoa and endysozoa |
|
|
Term
|
Definition
animals with a lophophore
animals with trochophore larvae |
|
|
Term
|
Definition
Larval form found in the annelids and
molluscs, floats freely in water until finding a habitat |
|
|
Term
|
Definition
animals that shed the exoskeleton during
growth (molting) |
|
|
Term
| exoskeleton of endysozoans |
|
Definition
muscles attach on internal surfaces
- blood (haemolymph) sloshes
around in a large body cavity
(haemocoel)exoskeleton
completely surrounds |
|
|
Term
Growth of internal organs and
muscles in endysozoans |
|
Definition
|
|
Term
| cycles of growth in endysozoans |
|
Definition
Molting- occurs in a cycle:shedding of exoskeleton
allows organs to get larger,
followed by:
- Re-deposition of new exoskeleton |
|
|
Term
| simple (incomplete) metamorphosis |
|
Definition
| when stages of growth (instars) resemble one another |
|
|
Term
|
Definition
| instars do not resemble eachother |
|
|
Term
|
Definition
| location where successful sperm enters cell, becomes dorsal side |
|
|
Term
|
Definition
|
|
Term
|
Definition
| results from numerous mitotic divisons, early animal embryo |
|
|
Term
|
Definition
| open sac withing blastula |
|
|
Term
|
Definition
| becomes stomach, cells become differentiaded into endoderm, mesoderm, ectoderm |
|
|
Term
|
Definition
|
|
Term
|
Definition
| This stage is found in non-protostomes. The chordates. Beginning of nerve development. |
|
|
Term
|
Definition
|
|
Term
|
Definition
| mitosis in animal cell, caused by movement of actin fibers in cytoskeleton |
|
|
Term
|
Definition
|
|
Term
|
Definition
plane of separation cannot
proceed through the yolk (chicks) |
|
|
Term
|
Definition
|
|
Term
|
Definition
| cytoplasm containing many nuclei |
|
|
Term
|
Definition
Individual cells of the early
embryo |
|
|
Term
|
Definition
become tissues
different from those at the
vegetal pole |
|
|
Term
| removal of frog blastomeres |
|
Definition
| results in a fully formed “normal” tadpole |
|
|
Term
|
Definition
|
|
Term
| Pluripotential stem cells |
|
Definition
| like bone marrow, can make more than one tissue but not any tissue (like totipotential), replace old and dying cells such as red blood cells |
|
|
Term
|
Definition
| can only develop into one type of tissue |
|
|
Term
| when did animals begin to show diverse body plans? |
|
Definition
|
|
Term
|
Definition
| yolk, transcription factors |
|
|
Term
|
Definition
mouse tool-kit
gene that produces
transcription factors for
eye development |
|
|
Term
|
Definition
Jointed appendages, Exoskeleton of
chitin and CaCO3, Grow by molting All possess the Ubx gene Wildly varying
specializations of body segments. |
|
|
Term
|
Definition
| works with another gene called “distal-less (dll)” to form an appendage on every body segment |
|
|
Term
| why do insects not have legs on abdoman? |
|
Definition
Have a unique mutant form of the Ubx
gene. It produces a protein that blocks
the dll transcription factor for making
legs |
|
|
Term
|
Definition
| gills in crustaceans, wings in insects |
|
|
