Flower power & Reproduction
A ________ flower is one that possesses all the floral organs (sepals, petals, stamens, and pistils).
a. standard
b. developed
c. complete
d. layered
e. none of the above
C. Complete
Green plants produce and recycle the oxygen on which animal _______.
a. cruelty
b. life
c. welfare
d. reproduction
e. none of the above
B. Life
________ soils have moved in response to gravity, or after a landslide/ mudslide.
a. glacial till
b. colluvial
c. aeolian
d. alluvial
e. none of the above
B. Colluvial
________________ is the study of fungi.
a. mycology
b. namatology
c. entomology
d. virology
e. none of the above
A. Mycology
All living organisms except ______ have the cell as their basic structural unit.
a. mammals
b. viruses
c. angiosperms
d. insects
e. bacteria
B. Viruses
If the two imperfect flowers occur on separate plants, the plants are termed.
a. monoecious
b. dioecious
c. accurate
d. incomplete
e. none of the above
B. Dioecious
In the majority of higher plants, including ornamentals, ________ is the pigment in greatest abundance.
a. anthocyanin
b. xanthophyll
c. carotene
d. chlorophyll
e. none of the above
D. none of the above
___________ soils have been moved by forces of nature.
a. sedentary
b. transported
c. missionary
d. settled
e. none of the above
B. Transported
The form of a pathogen that enables it to infect a host is called the_______________.
a. host
b. parasite
c. pathogen
d. inoculum
e. none of the above
D. Inoculum
. ________ is a state of vegetative growth during which a plant cannot
a. maturity
b. juvenility
c. early
d. late
e. none of the above
In _______________, roots develop on a stem that is still attached to the parent plant.
a. cuttings
b. budding
c. layering
d. grafting
e. none of the above
C. layering
________ is the movement of organic materials from one part of the plant to another part. a. respiration
b. condensation
c. evaporation
d. translocation
e. none of the above
D. Translocation
_________ is the thin outer layer of the earth’s crust made up of weathered minerals, living and nonliving organisms, water and _________.
a. dirt, water
b. dirt, air
c. soil, air
d. soil, humus
e. none of the above
C. Soil, Air
_______________ are chemical additives that improve the performance of the pesticide with which they are combined.
a. adjuvant
b. additives
c. addicts
d. allusions
e. none of the above
A. Adjuvant
________ is the energy that permits all life on earth to exist.
a. warming
b. day length
c. eclipse
d. light
e. none of the above
D. Light
Plants depend upon _________ and ____________ bands of the visible light spectrum. a. red, green
b. blue, green
c. orange, yellow
d. blue, red
e. none of the above
A growth movement in plants in response to light is_______.
A growth movement in plants in response to light is_______.
a. phototropism
b. transformism
c. daylength
d. temperature change
e. none of the above
A. Phototropism
Organic compounds that do not decompose quickly eventually succumb to enzymatic action, forming a complex mixture, called ___________.
a. hesitant
b. matter
c. elements
d. humus
e. none of the above
Which of the following is seldom a problem for plants growing outdoors, but can cause a problem for plants growing in controlled environments?
a. humidity
b. water
c. insects
d. disease
e. none of the above
A. Humidity
When a substance passes through the soils root region, the action is termed ____________.
a. infiltration
b. bleeding
c. leaching
d. consisting
e. none of the above
C. Leaching
Lack of light turns a plant yellow in a condition termed ________________.
a. dampening off
b. saprophytes
c. etiolation
d. chlorosis
e. none of the above
C. Etiolation
_________ is the term used to describe the effect of varying periods or duration of light exposure on plant growth and development.
phototropism
b. transformation
c. daylength
d. photoperiodism
e. none of the above
D. Photoperiodism
___________ possess the greatest surface area of all the separates.
a. sand
b. silt
c. clay
d. humus
e. none of the above
C. Clay
The study of insects, their effects on plants, and their control is _______________.
a. mycology
b. insectology
c. plant pathology
d. entomology
e. none of the above
D. Entomology
___________________ are stems that grow along the ground and form new plants at one or more of their nodes.
a. stolons
b. rhizomes
c. suckers
d. tuber
e. corms
A. Stolons