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28 terms

Endocrine System; The Cell; Intro to Evolution; Invertebrate Diversity FINAL

STUDY
PLAY
Hypothalamus
"Master Gland"
oDeals with external & internal info
oPituitary hormone regulation
oBrain
Thyroid
hormones affect tissues
Parathyroid
calcium regulation
Thymus
Puberty
Immune System
Adrenals
body preservation
salt conservation
stress response
Pancreas
Nutrient Absorption
Negative Feedback
Hypothalamus produces TRH, which stimulates the AP, which produces TSH, which stimulates the Thyroid gland itself, which produces T4. Then it tells the hypothalamus to stop until levels are back to normal.
Positive Feedback
• Positive Feedback: A woman goes into labor. The PP produces oxytocin, which stimulates labor. It tells the PP to produce more oxytocin to push the baby out.
Cell Theory
all living things are composed of cells
all cells come from other cells
Endosymbiont Theory
chloroplasts & mitochondria were small prokaryotes that began living in larger cells
C & M have their own DNA & Ribosomes
Prokaryotic Cells
Before the Nucleus
Protist, Fungi, Animals, Plants
Eukaryotic Cells
True Nucleus
Membrane-Enclosed Nucleus
Bacteria & Archaea
Plant Cells
Chloroplasts
Cell Wall
Animal Cells
Lysosomes
Centrioles
Artificial Selection
humans modify species by selecting/breeding individuals with desired traits
Natural Selection
Variation: in populations species there is variation in inherited traits
Species are capable of producing more offspring than the environment can handle
Species that have a higher survival rate will produce more offspring
The unequal distribution of offspring results in favorable traits spreading through the population
Major Types of Evidence for Evolution
biogeography
fossil record
gene trees
Biogeography
geographic distribution of species
Fixity of Species: similar islands, similar habitants
Evolutionary Theory: Islands should have similar habitants as mainland
General Characteristics of Animals
Eukaryotic
Multicellular
Heterotrophic
Ingest nutrients
Most have Muscles/Nerves
Most diploid
Most reproduce sexually
Porifera
Radial/No
Cnidarians
Radial
2 Tissues
No
Simple nerves, Contractile Tissue
Flatworms
Bilateral
3 tissues
No
Nerves
Nematodes
Bilateral
3 Tissues
Pseudocoelom
Nerves
Molluscs
Bilateral
3 Tissues
Truecoelom
Nerves
Annelids
Bilateral
3 Tissues
Truecoelom
Nerves
Arthropods
Bilateral
3 Tissues
Truecoelom
Nerves
Echinoderms
Radial as adults
3 Tissues
Truecoelom
Nerves
Chordates
None
3 Tissues
Truecoelom
Nerves