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20 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What were the first organisms on earth?
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Sponges
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Chordates sheet.
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T/F The same set of genes direct body development in vertebrates as invertebrates
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True
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What were the first chordates to succeed on land? Give reasons.
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Reptiles. Strong jaws/limbs, could lay eggs on land.
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What are humans classified as, from Domain on?
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Animalia, Chordates, Mammalia, Primates, Hominidae, Homo, Sapiens
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Animals Can Make People Hate Helping Sometimes
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Define tissue.
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A group of cells that work together to perform a function
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Define Organ
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A defined body structure of one or more tissues that performs a function
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Define Organ System
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Two or more organs working together to perform a function
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What's the main purpose of the Integumentary (Skin) system? (3)
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To keep out invaders, prevent desiccation, and aid in reception.
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What's the main purpose of the Circulatory system?
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To transport the blood throughout the body, which contains oxygen and glucose.
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What's the main purpose of the muscular system? (2)
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To aid in movement and produce heat via respiration
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What's the main purpose of the respiratory system? (2)
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Allows the breathing in of oxygen and expulsion of carbon dioxide
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What's the main purpose of the digestive system? (2)
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To change unusable energy from food into usable glucose, and excrete waste
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What's the main purpose of the skeletal system? (5)
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Support soft tissues, protect organs, aid in movement, create bone marrow, and store minerals.
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What's the main purpose of the lymphatic system? (2)
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To attack infections that have gone through the first line of defense, filter the spleen
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What's the main purpose of the endocrine system?
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Control body activities via hormones
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What's the main purpose of the urinary system?
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To flush out excess fluids via the kidneys
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What's the main purpose of the nervous system?
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To control and coordinate the cells in the body
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What is homeostasis
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Maintaining a relatively constant environment within an organism
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How does homeostasis work in humans?
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The body systems work together to maintain it, which is necessary due to enzymes.
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Why is it needed?
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What 2 systems are responsible for “control” of the body & overall maintenance of homeostasis?
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Nervous (short-term) and Endocrine (Long-term)
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