Ans. The rhythmic contractions of the heart arises from within special cardiac muscles/the heart muscles are myogenic;
sharon kalunda answered the question on March 22, 2019 at 12:37
-
State the functions of the following parts of the mammalian ear.a) Eustachian tube.b) The utriculus and sacculus.
(Solved)
State the functions of the following parts of the mammalian ear.
a) Eustachian tube.
b) The utriculus and sacculus.
Date posted:
March 22, 2019
.
Answers (1)
-
Distinguish between analogous structures and homologous structures. For each structure give an example.
(Solved)
Distinguish between analogous structures and homologous structures. For each structure give an example.
Date posted:
March 22, 2019
.
Answers (1)
-
The diagram below shows a bone that was obtained from a mammal.
(Solved)
The diagram below shows a bone that was obtained from a mammal.
a) Identify the bone.
b) i) Name the type of joint formed at the part marked P.
ii) State one characteristic of the joint named in b) i) above.
Date posted:
March 22, 2019
.
Answers (1)
-
The action of pepsin stops in the duodenum. Explain.
(Solved)
The action of pepsin stops in the duodenum. Explain.
Date posted:
March 22, 2019
.
Answers (1)
-
What is the importance of the pollen tube in fertilization in plants?
(Solved)
What is the importance of the pollen tube in fertilization in plants?
Date posted:
March 22, 2019
.
Answers (1)
-
What is the importance of heartbeat in blood circulation?
(Solved)
What is the importance of heartbeat in blood circulation?
Date posted:
March 22, 2019
.
Answers (1)
-
Distinguish between lymphocytes and phagocytes
(Solved)
Distinguish between lymphocytes and phagocytes
Date posted:
March 22, 2019
.
Answers (1)
-
State two ways in which white blood cells defend the body against infections.
(Solved)
State two ways in which white blood cells defend the body against infections.
Date posted:
March 22, 2019
.
Answers (1)
-
The figure below shows a stem of a plant growing round a tree trunk
(Solved)
The figure below shows a stem of a plant growing round a tree trunk
a) What is the name of the response which causes such a twisted growth?
b) Explain how twisting process is accomplished
Date posted:
March 22, 2019
.
Answers (1)
-
A cell organelle can be thought of as a “bag” full of “liquid”, the “liquid” being the “background” substance that holds other structures within the...
(Solved)
A cell organelle can be thought of as a “bag” full of “liquid”, the “liquid” being the “background” substance that holds other structures within the “bag”. Distinguish between the “background” substance of a mitochondria and that of a chloroplast.
Date posted:
March 22, 2019
.
Answers (1)
-
State two characteristics of Eukaryotes.
(Solved)
State two characteristics of Eukaryotes.
Date posted:
March 22, 2019
.
Answers (1)
-
State three features that a grasshopper, a crab, a spider and a millipede have in common.
(Solved)
State three features that a grasshopper, a crab, a spider and a millipede have in common.
Date posted:
March 22, 2019
.
Answers (1)
-
The diagram below shows a section of a dicotyledonous stem.
(Solved)
The diagram below shows a section of a dicotyledonous stem.
Name the type of cells found in part labeled E.
Date posted:
March 22, 2019
.
Answers (1)
-
In what form is carbon IV oxide transported in blood?
(Solved)
In what form is carbon IV oxide transported in blood?
Date posted:
March 22, 2019
.
Answers (1)
-
State the importance of each of the following features in animals;
a) Solid food being broken down into small pieces.
b) Presence of caecum in herbivorous mammals.
(Solved)
State the importance of each of the following features in animals;
a) Solid food being broken down into small pieces.
b) Presence of caecum in herbivorous mammals.
Date posted:
March 22, 2019
.
Answers (1)
-
Name the disease characterized by
i)Glycosuria
ii)Diuresis
(Solved)
Name the disease characterized by
i)Glycosuria
ii)Diuresis
Date posted:
March 22, 2019
.
Answers (1)
-
State two ways in which skeletal muscles fibres are adapted to their function.
(Solved)
State two ways in which skeletal muscles fibres are adapted to their function.
Date posted:
March 22, 2019
.
Answers (1)
-
State two measures that can be taken to control infection of man by protozoan parasites.
(Solved)
State two measures that can be taken to control infection of man by protozoan parasites.
Date posted:
March 22, 2019
.
Answers (1)
-
State the changes that occur in a nerve axon to produce an action potential.
(Solved)
State the changes that occur in a nerve axon to produce an action potential.
Date posted:
March 22, 2019
.
Answers (1)
-
Distinguish between identical twins and fraternal twins.
(Solved)
Distinguish between identical twins and fraternal twins.
Date posted:
March 22, 2019
.
Answers (1)