Nutritional labels on food are based on a diet of:
What will be an ideal response?
2000 calories
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Organisms that reproduce sexually have ________ as sex cells that carry the genetic information from each parent.
A. diploid gametes B. diploid morulas C. diploid zygotes D. haploid gametes E. haploid zygotes
External signals, such as hormones and growth factors, can stimulate a cell to go through the cell cycle.
Answer the following statement true (T) or false (F)
Why is ATP needed for muscle contraction?
A) It causes tropomyosin to slide off the myosin-binding sites of actin. B) It's needed for calcium release from the sarcoplasmic reticulum. C) It causes calcium to bind to troponin. D) Myosin must contact the actin filament and move to pull it toward the midline of the sarcomere.
The hormone that triggers "let down" or milk release is
What will be an ideal response?