Which group of animals have haemocoel?

State reasons for the following:
$(a)$ Protists have appendages like cilia or flagella.
$(b)$ Angiosperms are called so.
$(c)$ Fish have scales on their body.

The branch of biology which deals with the principles and practice of classification of plants and animals is

Which among the following has specialised tissue for conduction of water?
$(i)$ Thallophyta
$(ii)$ Bryophyta
$(iii)$ Pteridophyta
$(iv)$ Gymnosperms

Which among the following have an open circulatory system?
$(i)$ Arthropoda
$(ii)$ Mollusca
$(iii)$ Annelida
$(iv)$ Coelenterata

State whether the following statement is true or false:
Seeds consist of the embryo along with stored food,which serves for the initial growth of the embryo during germination.