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What three types of cells must be present for flatworms to respond to stimuli?
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Why can't viruses respond to stimuli?
They have no cells. So they do not respond
A major characteristic of living cells is that they respond to various?
stimuli
Muscle cells gland cells and specialized cells that respond to neural stimuli are called?
effectors
What cells have the ability to respond to stimuli by generating signals such as action potentials?
neurons and muscle cells
Why is sun not living?
The sun is not made of cells, does not respond to stimuli, and cannot reproduce.
What are the characteristics of all living things?
1. DNA 2. Cells 3. Grow and Develop 4. Reproduction 5. Respond to stimuli 6. Energy
How are flowers alive?
They are made of cells, have a metabolism, respond to stimuli, grow, reproduce, and are influenced by their environment.
What sphere would lightning be found?
Lightning does not have cells, does not have a metabolism, does not reproduce, does not maintain homeostasis, and does not respond to stimuli.
Taste and smell receptors are classified as chemoreceptors because they both respond to?
Chemoreceptors are classified as sensory cells or organs that respond to chemical stimuli. The nose and tongue are both equipped with chemoreceptors.
Is flatworms eukaryotic cells?
yes.
How do living cells respond when placed in freezing temperatures?
All cells are protected by a cellular membrane that respond to various outside changes and stimuli. This cellular membrane responds by producing more unsaturated fatty acids within itself, providing insulation.
What are all characteristics of living things?
1. DNA 2. Cells 3. Grow and Develop 4. Reproduction 5. Respond to stimuli 6. Energy
