Which one of the following plant hormones does NOT prevent abscission in plants?
Auxin
Gibberellin
Cytokinin
Ethylene
| Column (I) (Parasite) |
\begin{aligned} & \text { Column (II) } \\ & \text { (Host) } \end{aligned} |
||
|---|---|---|---|
| i. | Ticks | a. | Marine fish |
| ii. | Copepods | b. | Dog |
| iii. | Cuscuta | c. | Indian crow |
| iv. | Asian Koel | d. | Hedge plants |
i-b, ii-a, iii-c, iv-d
i - b, ii - a, iii - d, iv - c
$\mathrm{i}-\mathrm{b}, \mathrm{ii}-\mathrm{c}, \mathrm{iii}-\mathrm{d}, \mathrm{iv}-\mathrm{a}$
i - b, ii - d, iii - c, iv -a
Identify P and Q regions in the diagram of histology of alimentary canal and identify the type of tissue.

$\quad \mathrm{P}$ - Submucosa - loose connective tissue Q - Circular muscle layer - Smooth muscles
P -Mucosa-Mesothelium
Q - Muscularis - Straited muscles
P-Serosa- Squamous epithelium
Q - Muscularis - Smooth muscles
P -Mucosa-epithelium with microvilli
Q - Longitudinal muscle layer - Striated muscles
Which one of the following is NOT a cyanobacterial biofertilizer?
Anabaena
Nostoc
Oscillatoria
Rhizobium
MHT CET (Biology) Papers
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