Scientists began to question the perfection of the
Chain of Being because of
a. the discovery of new organisms in new parts of
the world.
b. the presence of body parts with no apparent
function in some organisms.
c. the existence of fossil forms.
d. similarities in the structures found in different
forms of life.
e. all of these.
Answer: e
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Because fossil fuels are the remains of once living organisms, they contain reservoirs of ________ that are released into the atmosphere when they are burned.
A. phosphorus B. nitrogen C. carbon D. oxygen
How does auxin actually cause stems to curve towards the light?
A. In the presence of light, auxin moves toward the light source and activates a protein that binds to DNA and starts enzyme production. B. In the presence of blue light, auxin triggers additional photosynthesis and growth. C. In the presence of light, auxin increases the formation of hydrolytic enzymes that release energy needed for growth purposes. D. In the presence of unidirectional light, auxin moves to the shady side and activates an ATP-driven proton pump that results in weakened cell walls and eventual elongation. E. In the presence of light, auxin increases the turgor pressure of the cell and accelerates growth.
The carotenoids and other accessory pigments in the chloroplast help capture light into the reaction center's chlorophyll molecules
Indicate whether the statement is true or false
Which of the following organelles are incorrectly paired with their location within the cell?
a) cilia - on the cell surface b) nucleolus - within the nucleus c) microtubules - within the cytoplasm d) smooth endoplasmic reticulum - within the cytoplasm of the cell e) golgi apparatus - on the cell surface