Fish definitely have a central nervous system!
It contains their brain, spinal cord and Medulla Oblongata (which is a connecting the brain with the spinal cord!)
Their brains even have the same parts as the human brain! For example, they also have a cerebellums
The half colored half white circle indicates that the person is a carrier but doesn't have the disease. Since John has a capital H we can assume that if someone else has a capital H genotype then they don't have it. Every body but Fred and Luke have a capital H and their squares are fully colored meaning that they have hemophilia
The answer is Fred and Luke
The correct option is LIZARD AND FROG.
Predator refers to an animal which uses another animal as food. In the question given above, we are told that the insect is consumed by the frog and the lizard. This means that the frog and the lizard are the predators of insects.
