Which is the largest organ in the human body?Heart Liver Skin Lungs C) Skin Skin is the largest organ, covering the whole body.
Which part of the plant conducts photosynthesis?RootStem Leaf FlowerC) LeafLeaves contain chlorophyll for photosynthesis.
Which blood cells help in clotting?Red blood cellsWhite blood cells Platelets Plasma C) Platelets Platelets are responsible for blood clotting.
What is the basic unit of life?OrganTissue CellOrgan system C) CellThe cell is the structural and functional unit of life.
Which gas do plants absorb from the atmosphere? Oxygen Carbon dioxide Nitrogen HydrogenB) Carbon dioxide Plants take in COâ‚‚ for photosynthesis.
What is the powerhouse of the cell? NucleusRibosomeMitochondria Lysosome: C) Mitochondria Mitochondria produce energy (ATP) for the cell.
Which organ purifies blood in humans? Heart LiverKidney Lungs C) KidneyKidneys filter waste from the blood.
Which vitamin is produced in human skin by sunlight? Vitamin A Vitamin BVitamin CVitamin DD) Vitamin DSunlight helps synthesize Vitamin D in the skin.
. Which part of the brain controls balance?CerebrumCerebellumMedullaPonsB) Cerebellum: The cerebellum manages body balance and coordination
What is the normal body temperature of a human? 96.4°F97.5°F98.6°F100°F C) 98.6°FThe average human body temperature is 98.6°F (37°C).
Which blood group is called the universal donor?ABAB O D) O Blood group O can donate to all other groups.
Which is the longest bone in the human body? Tibia Femur HumerusRadius: B) FemurThe femur (thigh bone) is the longest bone.
. What is the main function of white blood cells?Carry oxygenClot bloodFight infectionStore fatC) Fight infectionWBCs protect the body from infections.
Which plant tissue transports water?Phloem XylemParenchymaCollenchymaB) XylemXylem carries water and minerals upward in plants.
What is the process of breathing out called?Inhalation Exhalation Respiration Photosynthesis B) Exhalation Breathing out air is called exhalation.
What is the powerhouse of the cell?NucleusRibosomeMitochondrionEndoplasmic ReticulumC) MitochondrionThe mitochondria are responsible for generating most of the cell's supply of adenosine triphosphate (ATP), which is used as a source of chemical energy, hence the name "powerhouse."
What is the process by which plants make their own food?RespirationTranspirationPhotosynthesisFermentationC) PhotosynthesisPhotosynthesis is a process used by plants and other organisms to convert light energy into chemical energy, which is then used to fuel the organisms' activities.
Which part of the blood is responsible for clotting?Red blood cellsWhite blood cellsPlasmaPlatelets D) PlateletsPlatelets, also known as thrombocytes, are small, colorless cell fragments in our blood that form clots and stop or prevent bleeding.
The human skeleton is composed of how many bones (in adults)?206201180300 A) 206The adult human skeleton is typically composed of 206 bones. A baby is born with around 300 bones, some of which fuse together as the person grows.
Which of the following is the universal blood donor? A+ B-O+B+C) O-People with blood type O- can donate to people with any blood type because their red blood cells lack both A and B antigens and the Rh factor, making them compatible with all recipients.
Which organ in the human body is responsible for producing insulin?Liver PancreasKidneyGallbladderB) PancreasThe pancreas is a gland located in the abdomen that produces several hormones, including insulin, which regulates blood sugar levels.
What is the function of the "xylem" in a plant?To transport food from the leaves to the rest of the plant.To transport water and nutrients from the roots to the rest of the plant.To provide structural support.To carry out photosynthesis.B) To transport water and nutrients from the roots to the rest of the plant. Xylem is one of the two types of transport tissue in vascular plants. It transports water and dissolved nutrients from the roots to the rest of the plant.
Which of the following is a single-celled organism?A jellyfishA mushroomAn amoebaA fernC) An amoeba An amoeba is a type of single-celled protist that can alter its shape by extending and retracting pseudopods.
