MCQ
According to recent knowledge, the pineal body is considered as
- AA vestigial organ
- BAn organ of intelligence
- ✓An endocrine gland
- DAn organ of involuntary action
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$(i)$ Head is formed by the fusion of $6$ -segments.
$(ii)$ Mouth parts are biting and chewing type.
$(iii)$ Crop is the part of mid gut.
$a$. Glycine $b$. Cellulose, $c$. Glycogen $d$. Ribose $e$. galactose, $f$. Lactose, $g$. Maltose
$(a)$ It is also called as the earlywood
$(b)$ In spring season cambium produces xylem elements with narrow vessels
$(c)$ It is lighter in colour
$(d)$ The springwood along with autumnwood shows alternate concentric rings forming annual rings
$(e)$ It has lower density
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