Neurons that receive stimuli from the body or internal organs are called

A. sensory neurons

B. efferent neurones

C. motor neurones

D. relay neurones

Which of the following is true of climax community?

A. it persists until the enviroment or climate changes

B. it changes drastically from one year to the next

C. it is first stage in succession

D. It is made up of the tallest trees and the smallest

A population is defined as a collection of similar organism that

A. behave in the same way

B. interbreed freely

C. are found in the same habitat

D. eat the same food

In typical predator food chain involving secondary and tertiary consumers, the organism become progressively

A. smaller and more numerous along the food chain

B. equal in number and size along the food chain

C. larger and fewer along the food chain

D. parasitized along the food chain as consumers get bigger

Which level of the pyramid has the least total stored energy?

A. E

B. F

C. G

D. H

Which organism in the pyramid functions as a tertiary consumer?

A. Algea

B. Shark

C. Tadpole

D. Tilapia

Mangrove swamp can be found

A. on a seashore with flat terrains

B. where a river meets the sea

C. on a mud flat near the sea

D. where two rivers meet

Soil with the finest particles is called

A. silt

B. clay

C. sand

D. gravel

Malaria symptoms are caused by

A. toxins released into the blood as a result of the destruction of red blood cell

B. the multiplication of the malaria sporozites in the liver

C. the invasion of the red blood cells by the trophozoites

D. the development of merozoites into gametocytes

Which of the following is true of the children of a heamophilic man who marries a woman that is not haemophilic and does not carry the trait?

A. All their sons will be haemophlic

B. all their daughters will be haemophilic

C. All their daughters will be carriers

D. all their sons will be carriers