Anatomy of Flowering Plants — BIOLOGY STD 11 Science — Question

$(1)$ Frog is a poikilotherm.

$(2)$ Frog does not have any coronary circulation.

$(3)$ Heart is “myogenic” in nature.

$(4)$ Heart is autoexcitable.

$A$. Light  $B$. Chlorophyll  $C$. $\mathrm{CO}_2$  $D$. $ATP$   $E$. $NADPH$

Choose the correct answer from the options given below:

$I$. They reproduce asexually by non-motile spores and sexually by non-motile gametes

$II$. In this class, sexual reproduction is oogamous and accompanied by complex post-fertilisation developments

$III$. The common members are Polysiphonia, Porphyra, Gracilaria and Gelidium

The above characteristics are belongs to which class of algae