A population is defined as the collection of

A. Similar organism that are found in the same habitat

B. Similar organisms that breed in the same habitat

C. Similar organisms that interbreed freely in the same habitat

D. Similar organism eating the same food

E. Different organisms in the same habitat

Which of these combinations is common to plant and animal cells?

A. Centriole, middle lamella, golgi bodies, mitrochondrion

B. Cytoplasm, sap, vacuole, starch grains, leucoplasts

C. Plasma membranes, chromosomes, mitochondria, lysosomes.

D. Nucleus, nucleolus, cellulose cell wall, endoplasmic reticulum

E. Cytoplasm, centriole, cellulose cell wall, nucleolus

Which of these animals is NOT metamerically segmented?

A. Tapeworm

B. Earthworm

C. Centipede

D. Crayfish

E. Shark

Some of the major elements required by plants are

A. Potassium, nitrogen, phosphorus, sodium, calcium

B. Nitrogen, phosphorus, molybdenum, sodium, calcium

C. Potassium, phosphorus, molybdenum, sodium, calcium

D. Potassium, nitrogen, iron , sodium, calcium

E. Potassium, nitrogen, phosphorus, silicon, cadmium

In human reproduction, the zygote formed as a result of fertilization gets attached to the wall of the uterus. The process is called

A. Sexual reproduction

B. Cohesion

C. Pregnancy

D. Implantation

E. Viviparity

Kwashiorkor is caused by severe deficiency of

A. Water

B. Oil

C. Drugs

D. Proteins

E. Sugars

An hormoiothermic animal kept in a room where the temperature is lower than the body temperature may lose heat by four physical process. Which of the following processes is NOT connected with the body temperature regulation ?

A. Radiation

B. Sweat

C. Evaporation

D. Conduction

E. Convection

Which of these food chains is NOT possible in a forest?

A. Diatom → fly → toad → snake

B. Fly → toad → snake→ hawk

C. Leaves → antelope → man → lion

D. Leaves → caterpillar → bird → lion

E. Leaves →goat → man→ lion

If a tall man (TT) marries a dwarf woman (gg) and they have four male children, the offspring will be?

A. All short

B. Three short and one tall

C. Two short and two tall

D. One short and three tall

E. All tall

A married couple has 10 children and they are all girls. Which of the following is the CORRECT explanation?

A. The woman is incapable of producing male children

B. The man’s sperms are very weak

C. The man is not athletic enough

D. The Y component of the men’s sex chromosomes was always involved

E. The X component of the man’s sex chromosomes was always involved