When a Moss Spore Germinates,the Single Row of Cells That

question 19

Multiple Choice

When a moss spore germinates,the single row of cells that first appears will branch and form a(n)

• A) antheridium.
• B) archegonium.
• C) rhizoid.
• D) protonema.
• E) sori.

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Definitions:

Botox

A drug made from a toxin produced by the bacterium Clostridium botulinum, used cosmetically to remove wrinkles by temporarily paralyzing facial muscles and medically to treat certain muscle conditions.

Botulism Exotoxin

A potent neurotoxin produced by the bacterium Clostridium botulinum, responsible for the life-threatening illness botulism.

Muscle Spasms

Involuntary contractions of a muscle or group of muscles, often causing sudden pain and discomfort.

Bacterial Plasmids

Small, circular, double-stranded DNA molecules found in bacteria, separate from chromosomal DNA, that can replicate independently and often carry genes conferring antibiotic resistance.