Which type of plant hormone retards leaf aging?

a. salicylic acid
b. abscisic acid
c. cytokinins
d. ethylene
e. gibberellins


C

Biology & Microbiology

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Directional, light-triggered plant development is known as  

A.  thigmotropism. B.  phototropism. C.  thigmonasty. D.  photomorphogenesis. E.  acid-growth movement.

Biology & Microbiology

All of the following are used to construct a

theory with one exception. Select the exception.

a. repetitions of experiments. b. increased observations. c. time. d. faith. e. confirmation by many scientists

Biology & Microbiology

Which of the following is a correct interpretation of the wings of bats and the wings of birds?

a. They are analogous because they have a similar internal bone structure inherited from a common ancestor. b. They are homologous because they are adapted for the same function. c. They are homologous because they have a similar internal bone structure inherited from a common ancestor. d. They are analogous because the common ancestor of bats and birds had wings.

Biology & Microbiology

which of the following are primary sex organs

What will be an ideal response?

Biology & Microbiology