Biology 30 alberta - Study guides, Class notes & Summaries

Biology 30 Alberta: The Senses Questions and Answers 100% Solved How are stimuli detected? By sensory receptors How does sensation occur? Electrochemical impulses arrive at cerebral cortex Sensory adaptation Process by which repeated, insignificant signals are filtered out What do photoreceptors do? Detect light (e.g. rods and cones in human eye) What do chemoreceptors do? Detect chemical signals (e.g. olfactory cells for smell, taste buds, internal detection of pH levels, etc.) What do mec...

Biology 30 Alberta: The Senses Questions and Answers Rated A+ How are stimuli detected? -Answer By sensory receptors How does sensation occur? -Answer Electrochemical impulses arrive at cerebral cortex Sensory adaptation -Answer Process by which repeated, insignificant signals are filtered out What do photoreceptors do? -Answer Detect light (e.g. rods and cones in human eye) What do chemoreceptors do? -Answer Detect chemical signals (e.g. olfactory cells for smell, taste buds, int...

How are stimuli detected? -Answer By sensory receptors How does sensation occur? -Answer Electrochemical impulses arrive at cerebral cortex Sensory adaptation -Answer Process by which repeated, insignificant signals are filtered out What do photoreceptors do? -Answer Detect light (e.g. rods and cones in human eye) What do chemoreceptors do? -Answer Detect chemical signals (e.g. olfactory cells for smell, taste buds, internal detection of pH levels, etc.) What do mechanoreceptors do? -Answe...

How are stimuli detected? -AnswerBy sensory receptors How does sensation occur? -AnswerElectrochemical impulses arrive at cerebral cortex Sensory adaptation -AnswerProcess by which repeated, insignificant signals are filtered out What do photoreceptors do? -AnswerDetect light (e.g. rods and cones in human eye) What do chemoreceptors do? -AnswerDetect chemical signals (e.g. olfactory cells for smell, taste buds, internal detection of pH levels, etc.) What do mechanoreceptors do? -AnswerDet...

Cell Phases: 1. Interphase 2. mitosis 3. Cytokenesis G1 Growth and protein synthesis (interphase begins in daughter cells) S phase DNA replication (DNA duplicated) G2 phas Growth and protein synthesis Mitosis IPMAT 1. Interphase 2. Prophase 3) Metaphase 4) Anaphase 5) Telophase Cell Division Cells prepare to split>DNA coiled around histone> condensed to form chromosome Chromsoome -Long thread of DNA>wrapped in histone protein( chromatin) -Chr...

Biology 30 Alberta: The Senses Questions and Answers Rated A+ How are stimuli detected? -Answer By sensory receptors How does sensation occur? -Answer Electrochemical impulses arrive at cerebral cortex Sensory adaptation -Answer Process by which repeated, insignificant signals are filtered out What do photoreceptors do? -Answer Detect light (e.g. rods and cones in human eye) What do chemoreceptors do? -Answer Detect chemical signals (e.g. olfactory cells for smell, taste buds, internal de...

Biology 30 Alberta: Population and Community Dynamics Questions and Answers Already Passed How does mutation lead to gene pools changing? alleles mutate into another form; important for variation How does natural selection lead to gene pools changing? not all individuals have ability to produce offspring; "survival of the fittest" How does non-random mating lead to gene pools changing? mating based on proximity and preference; not all individuals have equal chance of finding mate How does g...

How does mutation lead to gene pools changing? - Answer alleles mutate into another form; important for variation How does natural selection lead to gene pools changing? - Answer not all individuals have ability to produce offspring; "survival of the fittest" How does non-random mating lead to gene pools changing? - Answer mating based on proximity and preference; not all individuals have equal chance of finding mate How does gene flow lead to gene pools changing? - Answer migration; los...

How does mutation lead to gene pools changing? - Answer alleles mutate into another form; important for variation How does natural selection lead to gene pools changing? - Answer not all individuals have ability to produce offspring; "survival of the fittest" How does non-random mating lead to gene pools changing? - Answer mating based on proximity and preference; not all individuals have equal chance of finding mate How does gene flow lead to gene pools changing? - Answer migration; ...