Cells Plants Evolution Ecology Anatomy
100
b) a gradient
For diffusion to occur, there must be:
a) a membrane
b) a gradient
c) water
d) ATP
d) all of these
100
a) Transpiration
Water loss through the stoma of leaves is termed...
a) Transpiration
b) Translocation
c) Guttation
d) Osmosis
100
d) Natural selection
A population of deer was threatened with overpopulation until cheetahs were imported. After a couple of years there were fewer deer but the average running speed of the deer had increased.
This is an example of:
a) induced mutation
b) genetic drift
c) mut
100
a) Ecosystem
A complex interrelated network of organisms and the surrounding abiotic environment in a defined area is a(n) ..
a) Community
b) Ecosystem
c) Population
d) Biosphere
100
b) Transporting oxygen
Approximately 99% of blood cells are involved in
a) immunity
b) transporting oxygen
c) eating invaders
d) entering and leaving the blood stream
200
e) all of the above
Which statement is true of cell walls?
a) Cell walls are nonliving
b) Cell walls are secreted by the cells they surround
c) Bacteria, fungi, and some protists possess cell walls
d) All of the above
200
c) Cohesion tension theory
The movement of water and minerals through xylem is explained by the:
a) Pressure flow theory
b) Translocation theory
c) Cohesion- tension theory
d) Assisted diffusion theory
200
d) Wallace
Darwin and ________ both jointly proposed the theory of evolution by natural selection.
a) Fitzroy
b) Malthus
c) Lamarck
d) Wallace
200
d) Coevolution
In the process called _______________ , species act as agents of natural selection on each other.
a) Succession
b) Commensalism
c) Competition
d) Coevolution
200
c) carbon dioxide
__________ is a waste product of cellular respiration
a) ATP
b) Oxygen
c) Carbon dioxide
d) Glucose
300
d) Phagocytosis
The process whereby white blood cells engulf bacteria is termed:
a) Adhesion
b) Exocytosis
c) Pinocytosis
d) Phagocytosis
300
b) Spores by meiosis
The sporophyte produces..
a) Spores by mitosis
b) Spores by meiosis
c) Gametes by mitosis
d) Gametes by meiosis
300
b) The more favorable reproduce more than less favorable
Darwin and Wallace both realized that most species produce many more offspring than is necessary to maintain a constant population. What is the fate of the excess individuals?
a) Evolution kills them off
b) The more favorable reproduce more than less favo
300
d) A keystone species
A species that plays a major role in determining the structure of its ecological community is :
a) A predator
b) A dominator species
c) The most abundant species in the community
d) A keystone species
300
b) Alveoli
Closed air sacs
a) Trachea
b) Alveoli
c) Bronchi
d) Larynx
400
c) Mitochondrion
Aerobic metabolism occurs in the:
a) Ribosome
b) Chloroplast
c) Mitochondrion
d) Nucleus
400
d) Sporophytes and gametophytes
In an alternation of generations life cycle(ferns, for example) what alternates?
a) Male plants and female plants
b) Reproductive plants and vegetable plants
c) Eggs and sperm
d) Sporophytes and gametophytes
400
d) There are no humans in early fossil records
Which of these statements indicated a problem with the theory of catastrophism
a) Not all species have been recovered
b) Many species become extinct
c) The Earth is billions of years old
d) There are no humans in early fossil records
400
b) fixation
Which of the following is NOT involved with the nitrogen cycle?
a) Limestone
b) Fixation
c) Calcium carbonate
d) Decomposers
400
b) Bile
Which of the following secretions does NOT contain enzymes?
a) Intestinal wall secretions
b) Bile
c) Saliva
d) Gastric secretions
500
b) Vacuoles
A cell adapted for waste storage and disposal would probably contain a large number of:
a) Mitochondria
b) Vacuoles
c) ER
d) Nuclei
500
a) Gymnosperms
The earliest seed plants are thought to be the ..
a) Gymnosperms
b) Flowering trees
c) Angiosperms
d) Tree ferns
500
a) a woman who lives 25 years and has 6 children
Which example is favored in terms of natural selection?
a) a woman who lives 25 years and has 6 children
b) a woman who lives 105 years and has 2 children
c) a woman who lives 35 years and has 4 children
d) a woman who lives 50 years and has 5 children
500
c) both a and b ( infrared radiation)
Nearly all of the incoming solar energy to the earth's surface is returned to space as
a) infrared radiation
b) light
c) both a and b
d) reflection
500
c) Around the level of the waist
Human kidneys are located
a) On each side of the esophagus
b) In the chest cavity
c) Around the level of the waist
d) Below the large intestine






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