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Summary Mastering Biology notes on Chapter 40 The Animal Body $6.39
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Summary Mastering Biology notes on Chapter 40 The Animal Body

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These notes are on topics about the Animal Body including connective tissue, epithelial tissue, thermoregulation, positive and negative feedback, energy expenditure, the endocrine system, hypothalamus and pituitary glands, prolactin, hypo and hyperthyroidism, epinephrine, etc.

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  • August 20, 2024
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  • 2023/2024
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Mastering Biology notes

Neuroplasticity: brains develop and grow with effort and challenges
Growth mindset improves performance


Unit 40: The Animal Body

Animal tissues




Types of connective tissues




Types of epithelial tissue




Thermoregulation
High body temp => vasodilation (more heat loss to the env) => body temp decreases
Low body temp => vasoconstriction (less heat loss to the env) => body temp increases
e.g. of negative feedback

Negative feedback: reducing stimulus to maintain homeostasis
Positive feedback: amplify a response

, Countercurrent heat exchange
Adaptation in mammals, regulate heat loss and gain
In cool env, heat retention. e.g. sperm




Ectotherm: gain heat from environment
Endotherm: generate heat

Homeotherm: keep body temp constant (homeostasis)
Poikilotherm: allow temp to fluctuate

Humans: homeo + endo (‘warm blooded’)




Energy expenditures
- Metabolism
- Reproduction
- Thermoregulation
- Activity
- Growth
If ectotherm, thermoregulation doesn’t require energy
Small animals lose heat faster. High SA:Vol ratio

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