Describe the steps involved in the action of a muscle spindle.
What will be an ideal response?
1. A muscle relaxes too much.
2. Muscle spindles embedded in the muscle stretch, sending sensory nerve impulses to the spinal cord.
3. Motor nerve impulses from the spinal cord cause the muscles to contract.
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If seed germination took place in 100% of plants at the 1.0 mg/mL concentration, and no germination was observed at the 0.1 mg/mL concentration, how would you modify a second experiment to determine the actual effective concentration?
What will be an ideal response?
What is the inner coat of the seed called?
a. tegmen b. radicle c. testa d. epicotyl
Which of the following would you NOT expect to find in phloem sap?
a. Carbohydrates. b. Hormones. c. Water. d. Amino acids. e. Nitrate.
Why are antibodies important to immunity?
What will be an ideal response?