2018 - JAMB Biology Past Questions and Answers - page 6
The hormones secreted by pancreas serves to
Blood circulation in a mammal is said to be double because
Examples of animals with mammary glands include the following except
Unlike the other animals listed, a hen does not have mammary gland
The hygrometer is used for measuring
A hygrometer is weather instrument used to measure the amount of humidity in the atmosphere. There are two main types of hygrometers -- a dry and wet bulb psychrometer and a mechanical hygrometer.
Humidity is the measure of the amount of moisture in the air. A psychrometer is an example of a hygrometer.
Mineral salts can be absorbed into roots by
Which is an Animal without red blood cells
Earthworm doesn't have red blood because they do gaseous exchange with the help of skin.
The blood is red due to the presence of hemoglobin in the red blood cell which helps in carrying oxygen
The temporary union of two organisms and the exchange of micronuclear elements is called
Conjugation consists of the temporary union of two organisms and the exchange of micronuclear elements
A plant tissue that carries water and mineral salt is
Xylem transports water and mineral salts from the roots up to other parts of the plant, while phloem transports sucrose and amino acids between the leaves and other parts of the plant.
The xylem, vessels and tracheid’s of the roots, stems and leaves are interconnected to form a continuous system of water conducting channels reaching all parts of the plants.
Which of the following relationship involves only one organism