Which algae are the most probable ancestors of land plants?
a. charophytes
b. chlorophytes
c. chrysophytes
d. gametophytes
e. phaeophytes
a
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A substance that resists or minimizes changes in pH when an acid or base is added to a solution is ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following applications, used by farmers to control weeds, relies upon turning the soil over?
A) tilling B) mulching C) spraying herbicides D) irrigation
When you look at an image, it is inverted on the back of the retina and yet appears right-side-up when perceived in the brain. What part of the body is responsible for inverting the image?
Select one: a. the retina b. the rods and cones c. the optic nerve d. the brain e. the lens
Answer the following questions true (T) or false (F)
1. Both viruses and prokaryotes reproduce by binary fission. 2. The shape of a virus may be determined by either its capsid or its envelope. 3. The number of species that a specific virus infects is called its host range while the types of tissues that the virus infects is called tropism.