Identify Specimen A (frog), B (amphibian, assumed frog), C (lizard), and D (mosquito) by taxonomic class, order, and family. List three adaptations and four economic importances for Specimen A. Draw a

Here are the answers to your biology questions.

*Assumption: Since no images of specimens A, B, C, and D are provided, I will make common assumptions based on the questions asked.

• Specimen A is assumed to be a frog.
• Specimen B is identified as an amphibian based on question 2(iii). I will assume it is a frog.
• Specimen C is identified as belonging to Squamata based on question 3(ii). I will assume it is a lizard.
• Specimen D is assumed to be a mosquito based on questions 4(i) and 4(iii).*

1.

• 1(i) Name the taxonomic class, order, and the family of Specimen A.

  • Class: Amphibia
  • Order: Anura
  • Family: Ranidae (True frogs)

• 1(ii) Give three (03) adaptations of Specimen A.

  • Moist, glandular skin for cutaneous respiration.
  • Strong hind limbs for jumping and swimming.
  • Webbed feet for efficient swimming.

• 1(iii) Make a labelled diagram (7-9 Cm) of the Ventral View of Specimen A with magnification.

  • I am unable to draw diagrams. You would need to draw a ventral view of a frog, showing structures like the mouth, forelimbs, hindlimbs, cloacal opening, and the general body shape, ensuring it is labelled and scaled appropriately.

• 1(iv) State four (04) economic importance of Specimen A.

  • Used as a food source in some cultures.
  • Acts as a biological pest control by consuming insects.
  • Valuable for scientific research and education (e.g., dissections).
  • Serves as an indicator species for environmental health.

2.

• 2(i) Classify Specimen B up to generic level.

  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Amphibia
  • Order: Anura
  • Family: Ranidae
  • Genus: Rana

• 2(ii) State the mode of fertilization in Specimen B.

  • The mode of fertilization in Specimen B (frog) is external fertilization.

• 2(iii) Why is the Specimen B referred to as Amphibian?

  • Specimen B is referred to as an Amphibian because it exhibits a double life, typically spending its larval stage in water and its adult stage on land. They possess moist, glandular skin and usually lay eggs in water.

3.

• 3(i) Identify Specimen C without reason.

  • Specimen C is a lizard.

• 3(ii) Why is the Specimen C referred to as Squamata?

  • Specimen C is referred to as Squamata because it belongs to the order of reptiles characterized by having scales covering their bodies and movable quadrate bones in their skulls, which allows for a wide mouth opening.

• 3(iii) State two (02) economic importance of Specimen C.

  • They act as natural pest control by preying on insects and rodents.
  • Some species are kept as pets.

4.

• 4(i) State the mode of metamorphosis in Specimen D.

  • The mode of metamorphosis in Specimen D (mosquito) is complete metamorphosis.

• 4(ii) State the class Specimen D belongs to.

  • Specimen D belongs to the class Insecta.

• 4(iii) Which disease does Specimen D responsible for?

  • Specimen D (mosquito) is responsible for diseases such as Malaria and Dengue fever.