Exceptionally large babies increase a mother's mortality risk when giving birth and exceptionally small babies tend to die at birth or shortly afterward. For these reasons, birthweight in human babies is generally:
a) not a heritable trait.
b) subject to disruptive selection.
c) subject to stabilizing selection.
d) under even stronger selection today than it was before the development of Caeserian delivery.
e) All of the above.
Ans: c) subject to stabilizing selection.
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a. animal hormones b. cotton c. stainless steel d. vinyl e. electronics
What functions have been demonstrated for bat biosonar?
a. They use biosonar to hunt insects. b. Some bats use biosonar to identify their offspring. c. Bats use biosonar to avoid obstacles such as other bats in tight spaces. d. All of the above are true.
Hydrogen Sulfide molecular formula
What will be an ideal response?
The ____ hypothesis states that the energy released during the movement of electrons through the electron transport chain is used to generate a proton gradient (proton motive force or PMF) across the membrane, which can then be used to generate ATP through oxidative phosphorylation.
a) chemiosmotic b) osmolytic c) chemical d) chemotrophic e) chemolytic