Which of the following is NOT typically carried by the blood?
A. heat
B. hormones
C. proteins
D. starch
D. starch
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What cannot be determined from examining age pyramids of human populations?
A) the future population size B) the age structure of the population C) the success of future generations D) the fecundity of a future population
True or False: Group selection is not an evolutionarily stable strategy
A. true B. false
The first law of thermodynamics states that energy can be transformed from one state to another, but it cannot be created or destroyed. Taking this into consideration, what can be said about the energy transferred between levels in a trophic pyramid?
A. Some of the energy in a trophic level is converted to heat and is unavailable to the next level. B. All the energy is transferred between trophic levels because components that have no energy, that is, light, are used to create the energy in the chemical bonds of carbohydrates. C. All the energy necessary for a trophic level is transferred. Because there is less biomass at each trophic level, less energy needs to be transferred. D. Some of the energy is held in one trophic level, and only the energy needed to support the smaller biomass at a higher level is transferred. E. Organisms at higher trophic levels only consume the energy they need from lower trophic levels, leaving a "bank" of energy to support the higher level when food is scarce.
The rough endoplasmic reticulum is so called because ____ stud the surface of that organelle.
a. carbohydrates
b. ribosomes
c. Golgi bodies
d. proteins
e. lysosomes