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Myogenic/wave of contraction originates from within heart(SAN);nerves from the head only regulate the rate.
Belan answered the question on March 15, 2019 at 15:25
- Name the two bones that form the ball and socket joint in the upper limb of a mammal.(Solved)
Name the two bones that form the ball and socket joint in the upper limb of a mammal.
Date posted: March 15, 2019. Answers (1)
- Explain why the leaf of a bean plant wilts in the afternoon on hot days but appear turgid early the following morning.(Solved)
Explain why the leaf of a bean plant wilts in the afternoon on hot days but appear turgid early the following morning.
Date posted: March 15, 2019. Answers (1)
- State three characteristics of class diplopoda.(Solved)
State three characteristics of class diplopoda.
Date posted: March 15, 2019. Answers (1)
- Distinguish between antigen and antibody.(Solved)
Distinguish between antigen and antibody.
Date posted: March 15, 2019. Answers (1)
- (a)State two symptoms of diabetes mellitus .(b)How is diabetes mellitus controlled?(Solved)
(a)State two symptoms of diabetes mellitus.
(b)How is diabetes mellitus controlled?
Date posted: March 15, 2019. Answers (1)
- Define the following terms:
(a)Secretion.
(b)Egestion.
(c)Excretion.(Solved)
Define the following terms:
(a)Secretion.
(b)Egestion.
(c)Excretion.
Date posted: March 15, 2019. Answers (1)
- (i)(a)What is self-pollination?
(b)list three characteristics of insect-pollinated flowers.(Solved)
(i)(a)What is self-pollination?
(b)List three characteristics of insect-pollinated flowers.
Date posted: March 15, 2019. Answers (1)
- (i)(a)State the relationship between the gene and DNA.
(ii)State the importance of a test-cross.(Solved)
(i)(a)State the relationship between the gene and DNA.
(ii)State the importance of a test-cross.
Date posted: March 15, 2019. Answers (1)
- State the functions of the human skeleton.(Solved)
State the functions of the human skeleton.
Date posted: March 15, 2019. Answers (1)
- State two physical ways of controlling the spread of malaria.(Solved)
State two physical ways of controlling the spread of malaria.
Date posted: March 15, 2019. Answers (1)
- Name the stages in mitosis in which:
(i)chromosomes appear short and thick.
(ii)chromosomes align themselves along the equator.(Solved)
Name the stages in mitosis in which:
(i)chromosomes appear short and thick.
(ii)chromosomes align themselves along the equator.
Date posted: March 15, 2019. Answers (1)
- State the function of cambium.(Solved)
State the function of cambium.
Date posted: March 15, 2019. Answers (1)
- State the relationship between size of organism and heat loss.(Solved)
State the relationship between size of organism and heat loss.
Date posted: March 15, 2019. Answers (1)
- (i)(a)Distinguish between homologous and analogous structures.
(b)Give one example in each case.(Solved)
(i)(a)Distinguish between homologous and analogous structures.
(ii)Give one example in each case.
Date posted: March 15, 2019. Answers (1)
- (a)State the importance of the following in the diet.
(i)Iron.
(ii)Vitamin A.
(b)Name the product of the dark stage of photosynthesis.(Solved)
(a)State the importance of the following in the diet.
(i)Iron.
(ii)Vitamin A.
(b)Name the product of the dark stage of photosynthesis.
Date posted: March 15, 2019. Answers (1)
- (a)Which cell organelle is most abundant in mammalian liver cells? (b) State two functions of the Golgi apparatus.(Solved)
(a)Which cell organelle is most abundant in mammalian liver cells?
(b)State two functions of the Golgi apparatus.
Date posted: March 15, 2019. Answers (1)
- Write down the formula used to calculate the magnification of an object when using a hand lens.(Solved)
Write down the formula used to calculate the magnification of an object when using a hand lens.
Date posted: March 15, 2019. Answers (1)
- Name one organism in each of the following taxonomic groups:
(i)Protoctista.
(ii)Monera.(Solved)
Name one organism in each of the following taxonomic groups:
(i)Protoctista.
(ii)Monera.
Date posted: March 15, 2019. Answers (1)
- State the two main types of nutrition.(Solved)
State the two main types of nutrition.
Date posted: March 15, 2019. Answers (1)
- Define the term fertilisation.(Solved)
Define the term fertilisation.
Date posted: March 15, 2019. Answers (1)