(a) Retina
(b) Cones and rods
sharon kalunda answered the question on March 21, 2019 at 12:14
- Which two classes of phylum arthropoda have their head fused with the thorax?(Solved)
Which two classes of phylum arthropoda have their head fused with the thorax?
Date posted: March 21, 2019. Answers (1)
- What biological knowledge or study is required in dealing with locusts that infest a maize crop.(Solved)
What biological knowledge or study is required in dealing with locusts that infest a maize crop.
Date posted: March 21, 2019. Answers (1)
- Describe an experiment you would carry out to demonstrate that xylem transports water(Solved)
Describe an experiment you would carry out to demonstrate that xylem transports water
Date posted: March 19, 2019. Answers (1)
- What will happen in the stomach during digestion if mucus is absent?(Solved)
What will happen in the stomach during digestion if mucus is absent?
Date posted: March 17, 2019. Answers (1)
- What determines the type or mode of placentation of a flower ovary?(Solved)
What determines the type or mode of placentation of a flower ovary?
Date posted: March 17, 2019. Answers (1)
- What is nitrogenous waste?(Solved)
What is nitrogenous waste?
Date posted: March 16, 2019. Answers (1)
- (a)Explain the role of pituitary gland in reproduction.(ii)State one function of thyroxine.(Solved)
(a)Explain the role of pituitary gland in reproduction.
(b)State one function of thyroxine.
Date posted: March 15, 2019. Answers (1)
- Name the enzymes that complete carbohydrate digestion in the ileum of humans.(Solved)
Name the enzymes that complete carbohydrate digestion in the ileum of humans.
Date posted: March 15, 2019. Answers (1)
- Explain why the heart of a frog continues to beat after the head has been cut off.(Solved)
Explain why the heart of a frog continues to beat after the head has been cut off.
Date posted: March 15, 2019. Answers (1)
- 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)