MCQ
In gymnosperms pollination is exclusively by
- AAnimals
- ✓Wind
- CWater
- DInsects
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$(I)$ In human body, it is made of number of muscle bundles.
$(II)$ Muscle bundles contains a number of muscle fibers and fiber is lined by the sarcollemma.
$(III)$ In Muscle fiber, sarcoplasm contains only one nucleus.
$(IV)$ In muscle fiber, sarcoplasmic reticulum is the store house of calcium ions.
$\begin{array}{|p{0.4\linewidth}|p{0.4\linewidth}|} \hline Column\,\,-I & Column\,\,-II \\ \hline (1)\,\,Neutrophil & (a)\,\,Inflammation \\ \hline (2)\,\,Eosinophil & (b)\,\,6-8\,\,\% \\ \hline (3)\,\,Basophil & (c)\,\,Phagocytes \\ \hline (4)\,\,Monocytes & (d)\,\,Resists\,\,infections \\ \hline \end{array}$
$(i)$ Mycoplasma has no cell wall.
$(ii)$ Mycoplasma is the smallest living organism known.
$(iii)$ Mycoplasma cannot survive without $O_{2}$.
$(iv)$ Mycoplasma are pathogenic in animals and plants.