Give differences : Dicotyledons and Monocotyledons
dicotyledons | monocotyledons |
$(1)$ two cotyledons are present in its seed. | $(1)$ only one cotyledon id present in its seed. |
$(2)$ root system is of taproot type. | $(2)$ root system is of fibrous type. |
$(3)$ stem is branched and node and inter nodes are not clear. | $(3)$ stem is mostly unbranched and has clear nodes and internodes. |
$(4)$ leaves possess reticularte venation. | $(4)$ leaves possess parallel venation. |
$(5)$ flowers are tetemorous or pentamerous. | $(5)$ flowers are not defined. |
$(6)$ petals and sepals are easily identified. | $(6)$ sepals and petals are not separately identified. |
$(7)$ mostly pollination is carried out by various factors e.g. sunflower and hibisus etc. | $(7)$ mostly pollination is carried out by wind. e.g. maize, coconut etc. |
Both gymnosperms and angiosperms bear seeds, then why are they classified separately?
How many organisms in the list given below are autotrophs?
Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomyces, Saccharomyces,Trypanosoma, Porphyra, Wolffia
An angiosperm is different from a gymnosperm in the absense of
Write a note on Angiosperms.
Draw a chart of life cycle in angiosperms.