Apical is a systemic (a material that penetrates the plant, enters the plant sap, and moves through the plant) that works by blocking the plant hormones that stimulate growth.
Indicate whether the statement is true or false
Question 2Scientists think there are _____ species of insects that have not been identified.
A) fewer than 1,000,000
B) as many as 2,000,000
C) over 5,000,000
D) equal to 4,000,000
Question 3Biostimulants stimulate microbial activity and improve soil cation exchange capacity.
Indicate whether the statement is true or false
Question 4Herbicides that kill only certain types of plants are called _____.
A) nonselective
B) selective
C) harmless
D) integrated
Question 5One of the most economical ways to propagate plants is _____.
A) using growth hormones
B) growing plants from cuttings
C) using asexual methods such as grafting
D) growing them from seeds
Question 6At what stage do insects do the most damage?
A) egg
B) pupa
C) larva
D) adult
Question 7Jiffy Mix is composed of equal parts of _____.
A) shredded moss and peat
B) fine-grade Terra Lite cermiculite and nutrients
C) both a and b
D) neither a nor b
Question 8When does the insect life cycle begin?
A) the larvae hatch
B) the female lays eggs
C) at the pupa stage
D) adults eat the plant
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