Which of the following pairs of organ is located in the anterior half of the mammalian body cavity?

• A. Kidneys and lungs
• B. Heart and ovary
• C. Lungs and heart
• D. Kidneys and heart

Which of the following cycles involves the process of precipitation and transpiration?

• A. Water cycle
• B. Carbon cycle
• C. Nitrogen cycle
• D. Oxygen cycle

The diagram below is an illustration of the life cycle of an insect. The adult fly in this cycle is called

• A. Housefly
• B. Butterfly
• C. Cockroach
• D. Mosquito

Which is the largest of the middle ear ossicles?

• A) Anvil
• B) Stipe
• C) Hammer
• D) Incus

In the mammalian male reproductive system, the part that serves as a passage for both urine and semen is the

• A. urethra
• B. urter
• C. bladder
• D. seminal vesicle

Which of the following possesses mammary gland?

• A. Dogfish
• B. whale
• C. shark
• D. catfish

Which of the following organisms feeds both autotrophically and heterotrophically?

• A. Hydra
• B. Paramecium
• C. Mucor
• D. Euglena

The role of dead organic matter in the soil is to

• A. make the soil black
• B. increase the mineral salt content
• C. provide food for all living organisms
• D. increase the acidity of soil

The sum total of all observable features of an organism is?

• A. phenotype
• B. hetrozygous
• C. genotype
• D. homozygous

Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because

• A. greater amount of DNA is involved in sexual reproduction
• B. gametes of parents have different genetic composition
• C. genetic materials come from parents of two different species
• D. sexual reproduction is a lengthy process