Which of these features is found in both nonvascular and vascular plants?

a. lignin
b. roots


c. cuticle
d. xylem
e. phloem


ANSWER: c

Biology & Microbiology

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In a contracted sarcomere, ____

a. there is little overlap of actin and myosin b. the Z lines are close together c. the sarcomere length has increased d. power strokes are inhibited e. the overall muscle is relaxed

Biology & Microbiology

Which of the following clusters of terms accurately describes DNA as it is generally viewed to exist in prokaryotes and eukaryotes?

A) double-stranded, parallel, (A + T)/(C + G) = variable, (A + G)/(C + T) = 1.0 B) double-stranded, parallel, (A + T)/(C + G) = 1.0, (A + G)/(C + T) = 1.0 C) double-stranded, antiparallel, (A + T)/(C + G) = variable, (A + G)/(C + T) = variable D) double-stranded, antiparallel, (A + T)/(C + G) = variable, (A + G)/(C+ T) = 1.0 E) single-stranded, antiparallel, (A + T)/(C + G) = 1.0, (A + G)/(C + T) = 1.0

Biology & Microbiology

Endospore-forming Gram-positive bacteria are found primarily in ________ habitats.

A. marine B. freshwater C. soil D. All of the choices are correct.

Biology & Microbiology

When a patient's immune system reacts adversely to a drug, this serious side effect is called a superinfection.

Answer the following statement true (T) or false (F)

Biology & Microbiology