A few drops of orange iodine solution turned blue-black when added to a food. This food contained
The food component which is used for insulation is
carbohydrate fat minerals protein
Glucose is transported in the blood
along the walls of the capillaries dissolved in the plasma fluid
inside red blood cells inside white blood cells
The cell that is a gamete is a
kidney cell pollen grain red blood cell sperm cell
The waste material made by a fetus is
carbon dioxide glucose oxygen protein
Many people who smoke cigarettes eventually develop severe difficulties when breathing. This is because cigarette smoke
makes the blood sticky reduces the surface area of the lungs
reduces the flow of blood away from the lungs travels in the blood to the heart
The process which adds oxygen to the air is
combustion photosynthesis precipitation respiration
Vertebrates include
amoebae amphibians arthropods fungi
alga --> water flea --> stickleback --> pike. There are four types of organism in this food chain. The producer is the
alga pike stickleback water flea