(D) The term 'phytohormones' was introduced by Kenneth $V$. Thimann in $1948$ to describe chemical substances that regulate plant growth and developme

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(D) The term 'phytohormones' was introduced by Kenneth $V$. Thimann in $1948$ to describe chemical substances that regulate plant growth and development. Therefore,the correct option is $D$.

Class 11 Biology Plant Growth and Development The Discovery of Plant Growth Regulators

Easy

Who used the term 'phytohormones' for plant hormones?

A
Balis
B
Morgan
C
Went
D
Thimann

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Class 11

Biology Questions

Chapter

Plant Growth and Development

Subtopic

The Discovery of Plant Growth Regulators

Match List-$I$ with List-$II$:

List-$I$ List-$II$

$A$. Auxin $I$. Miller et al.

$B$. Gibberellins $II$. $H$.$H$. Cousins

$C$. Ethylene $III$. $E$. Kurosawa

$D$. Cytokinin $IV$. Charles Darwin and Francis Darwin

Choose the correct answer:

List-$I$	List-$II$
$A$. Auxin	$I$. Miller et al.
$B$. Gibberellins	$II$. $H$.$H$. Cousins
$C$. Ethylene	$III$. $E$. Kurosawa
$D$. Cytokinin	$IV$. Charles Darwin and Francis Darwin