Corals have a skeleton composed of ……….
CaCO3
CaPO4
CaCl2
CaSiO2
Additional Questions
|
The echinoderms are |
Answer |
|
Sieve tuabe is characterized by |
Answer |
|
Which of the following element of xylem is living. |
Answer |
|
Which tissue occurs with in the passages of the excretory organs :- |
Answer |
|
Which pair of structures distinguishes a nerve cell from other cells. |
Answer |
|
In which of following, the plants have all roots? |
Answer |
|
Food present in bulbil occurs in: |
Answer |
|
The heart of Cockroach is made up of ………. units. |
Answer |
|
In Cockroach which segment has female genital opening ? |
Answer |
|
Which plastids possess chlorophyll pigments? |
Answer |