Bilharzia is caused by a/an:
1. Flatworm
2. Roundworm
3. Annelid
4. Arthropod
Which of the following is not a character of deuterostomes?
1. Radial cleavage
2. Schizocoelous coelom
3. Indeterminate cleavage
4. Blastopore forms anus
Icthyophis is a/an:
1. Tunicate chordate | 2. Flightless bird |
3. Limbless amphibian | 4. Egg-laying mammal |
Which of the following does not belong to Protostomia?
1. Annelids
2. Mollusks
3. Echinoderms
4. Arthropods
Approximately what percentage of existing animal species are invertebrates?
1. | 20% | 2. | 50% |
3. | 70% | 4. | 95% |
Water exits from a sponge through the:
1. | Spicule | 2. | Choanocyte |
3. | Amoebocyte | 4. | Osculum |
In some animal groups, the body is found divided into compartments with at least some organs/origin repeated.
This characteristic feature is named
1. Segmentation
2. Metamerism
3. Metagenesis
4. Metamorphosis
Given below are types of cells present in some animals. Each one is specialized to perform a single specific
function expect
1. Choanocytes
2. Interstitial cells
3. Gastrodermal cells
4. Nematocytes
Which one of the following sets of animals share a four chambered heart?
1. Amphibians, Reptiles, Birds
2. Crocodiles, Birds, Mammals
3. Crocodiles, Lizards, Turtles
4. Lizards, Mammals, Birds
Which of the following pairs of animals has non glandular skin?
1. Snake and Frog
2. Chameleon and Turtle
3. Frog and Pigeon
4. Crocodile and Tiger