In a cross involving a heterozygous red flower plant (Rr) and a white flowered plant (rr). What is the probability that the offspring will be Rr?
- A. \(\frac{1}{2}\)
- B. 1
- C. 2
- D. \(\frac{1}{4}\)
The changes of living organisms over generation is referred to as
- A. human evolution
- B. organic evolution
- C. physical evolution
- D. chemical evolution
The part of the inner ear that is responsible for hearing is
- A. sacculus
- B. cochlea
- C. utriculus
- D. ampullae
The web-feet of frogs and toads is basically for
- A. leaping
- B. walking
- C. swimming
- D. mating
Mouth part adapted for piercing and sucking is found in
- A. housefly
- B. grasshopper
- C. mosquito
- D. cockroach
Bilateral symmetry,cylindrical bodies and double openings are characteristic features of
- A. nematodes
- B. hydra
- C. protozoa
- D. protists
I
6 X + 6 H\(_2\)O → C\(_6\)H\(_{12}\)O\(_6\) + 6O\(_2\)
III chlorophyll II IV
Use the diagram above to answer question that follows
The part labelled I is
- A. enzyme
- B. water
- C. sunlight
- D. chemical
The food nutrient with the highest energy value is
- A. protein
- B. carbohydrate
- C. lipid
- D. minerals
The formation of cilia and flagella in living cells is carried out with the help of
- A. ribosome
- B. lysosome
- C. centriole
- D. plastid
Use the diagram above to answer the question that follows
The organism belongs to kingdom
- A. monera
- B. protista
- C. fungi
- D. animalia
The process by which plants loss water to the atmosphere is
- A. transpiration
- B. guttation
- C. translocation
- D. evaporation
The major building block of an organism is…
- A. Nitrogen
- B. Carbon
- C. Water
- D. Sulphur
Which of the following structures in the ear is responsible for transmitting sound vibrations to the auditory nerve?
- A. Eardrum
- B. Ossicles
- C. Cochlea
- D. Auditory canal
Which of the following is a difference between plant and animal cells?
- A. Plant cells have a nucleus, while animal cells do not
- B. Plant cells have a cell membrane, while animal cells have a cell wall
- C. Plant cells contain chloroplasts for photosynthesis, while animal cells do not
- D. Plant cells have a central vacuole, while animal cells have multiple small vacuoles
Digestive enzymes are responsible for
- A. Breaking down food into smaller molecules
- B. Absorbing nutrients into the bloodstream
- C. Regulating the pH of the digestive tract
- D. Transporting food through the digestive system
Which of the following options best describes adaptation for survival in organisms?
- A. Adaptation is the inherited trait that increases an organism's chances of survival and reproduction in its environment
- B. Adaptation is the process by which organisms acquire new characteristics during their lifetime
- C. Adaptation refers to the ability of an organism to change its environment to better suit its needs
- D. Adaptation involves the development of new traits in response to changes in the environment
Ecological succession refers to
- A. The movement of organisms from one habitat to another
- B. The competition among species for limited resources
- C. The process of natural selection in a population
- D. The gradual and predictable change in a community over time
What is the primary function of the liver in the human body?
- A. Regulation of body temperature
- B. Regulation of blood pressure
- C. Production of hormones
- D. Detoxification and metabolism of nutrients and drugs
Which of the following statements is true regarding the urinary tubule in the excretory system?
- A. The urinary tubule is responsible for the production of urine
- B. The urinary tubule regulates the water and electrolyte balance in the body
- C. The urinary tubule connects the kidneys to the bladder
- D. The urinary tubule is the site of filtration of blood
Which of the following statements is true regarding cell growth?
- A. Cell growth is solely influenced by external factors
- B. Cell growth is a continuous process throughout the life of a cell
- C. Cell growth involves an increase in the number of organelles within a cell
- D. Cell growth occurs by cell division
Which of the following statements about viruses is true?
- A. Viruses can reproduce outside of a host cell
- B. Viruses require a host cell to replicate
- C. Viruses possess a cellular structure
- D. Viruses are living organisms