Diversity in Li...

In which of the following, segmentation in the body is first observed?

Given below are three statements regarding Aschelminthes.
(i) They are bilaterally symmetrical and triploblastic.
(ii) They are dioecious.
(iii) All are plant or animal parasites.
Select the option that has both the correct statements.

Which of the following statements are incorrect?
(i) Parapodia are lateral appendages in arthropods used for swimming.
(ii) RaduIa in molluscs are structures involved in excretion.
(iii) Aschelminthes are dioecious.
(iv) Echinoderm adults show radial symmetry.
(v) Ctenophorans are diploblastic.

Which of the following vertebrates have 4 chambered heart but no sinus venosus, they also have metanephric kidneys, Heterocoelous vertebrae and Auditory openings.

Study the following table carefully and select the correct option for 1, 2, 3 and 4. 

Which one of the following statements about certain given animals is correct?

Identify the figures A, B, and C given above and select the correct option.

You have discovered an animal having characters like bilateral symmetry, chitinous exoskeleton, head, thorax and abdomen as body parts, and jointed appendages.
You should place the animal under:

Which of the following is incorrectly matched?

Match column I with column II and select the correct option from the given codes.