The continuous, low-level extinction rate of species is sometimes called:a
mass extinction.
b. minimal extinction.
c. selective extinction.
d. temporal extinction.
e. background extinction.
e
Biology & Microbiology
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A mycorrhizae is a symbiotic association between roots and fungi
Indicate whether this statement is TRUE or FALSE.
Biology & Microbiology
Sponges are mostly found in ________.
A. fresh water ecosystems B. marine ecosystems C. both marine and fresh water ecosystems D. neither marine nor fresh water ecosystems
Biology & Microbiology
Which plant hormone listed below is responsible for the symbiotic relationship shown in the accompanying figure?
a. auxin b. gibberellin c. cytokinin d. jasmonic acid e. abscisic acid
Biology & Microbiology
Single plant cells can be stimulated to become a callus and then further stimulated to become a new entire plant.
Answer the following statement true (T) or false (F)
Biology & Microbiology