Question 1 of 20 5,032 total questions
Which organism in the pyramid functions as a tertiary consumer?
A Algea
B Shark
C Tadpole
D Tilapia
Which level of the pyramid has the least total stored energy?
In typical predator food chain involving secondary and tertiary consumers, the organism become progressively
A smaller and more numerous along the food chain
B equal in number and size along the food chain
C larger and fewer along the food chain
D parasitized along the food chain as consumers get bigger
A population is defined as a collection of similar organism that
A behave in the same way
B interbreed freely
C are found in the same habitat
D eat the same food
Which of the following is true of climax community?
A it persists until the enviroment or climate changes
B it changes drastically from one year to the next
C it is first stage in succession
D It is made up of the tallest trees and the smallest
Neurons that receive stimuli from the body or internal organs are called
A sensory neurons
B efferent neurones
C motor neurones
D relay neurones
The grand period of growth is represented by
Which part of the curve represents the fastest rate of growth?
Fruits which develop without fertilization of the ovule are
A false
B multiple
C aggrgate
D parthenocarpic
Hypogeal germination is characterized by the
A emergency of the plumule out of the ground
B provision of nourishment by the endosperm
C elongation of the hypocotyl
D elongation of the epicotyl
In mammalian development, the function of the yolk is to
A supply nutrients to the embryo
B act as the shock-absorber to the foetus
C supply air to the embryo
D facilitates the process of excretion in the foetus
Double fertilization in higher plants is significant because it ensures the
A formation of a fertile embryo
B formation of a fertile embryo and the endosperm
C developement of the seed
D developement of the fruit
The function of the part labelled 1 is to
A secrete a fluid which lubricates the joint
B attach muscles to the bones at the joint
C bend the bones at the joint
D hold the joint in place
The part labelled 3 is the
A cartilage
B ligament
C synovial fluid
D bone
Which enzymes are contained in the pancreatic juice?
A Ptayalin, lipase and pepsin
B Maltase, erepsin and trypsin
C Renin, sucrase and lipase
D Amylase, lipase and trypsin
The bone of the neck on which the skull rests is known as the
A odontoid process
B axis
C atlas
D occipital condyle
Melanin and keratin are produced in the part labelled
The structure labelled 5 is the
A sweat gland
B sebaceous gland
C blood vessel
D nerve fibre
The excretory organ in insects is the
A kidney
B malpighian tubule
C flame cell
D nephridium
In the absence of oxygen, the pyruvic acid produced during glycolysis is converted to CO2 and
A water
B glycerol
C ethanol
D citric acid
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