oDeals with external & internal info
oPituitary hormone regulation
hormones affect tissues
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: 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.
all living things are composed of cells
all cells come from other cells
chloroplasts & mitochondria were small prokaryotes that began living in larger cells
C & M have their own DNA & Ribosomes
Before the Nucleus
Protist, Fungi, Animals, Plants
Bacteria & Archaea
humans modify species by selecting/breeding individuals with desired traits
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
geographic distribution of species
Fixity of Species: similar islands, similar habitants
Evolutionary Theory: Islands should have similar habitants as mainland
General Characteristics of Animals
Most have Muscles/Nerves
Most reproduce sexually
Simple nerves, Contractile Tissue
Radial as adults
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