Question 1
(a) State two external features found in class Mammalia only.
(b) Name the taxonomic unit that comes immediately after Family in classification
Answer
(a) - Have mammary glands;
- Have external ears /pinna;
(b) Genus
- Have external ears /pinna;
(b) Genus
Question 2.
(a) Name the basic functional unit of the skeletal muscle.
(b) Distinguish between a tendon and a ligament.
Answer
(a) Myofibril
(b)
(b)
Question 3
State two advantages of using a coverslip when preparing a specimen for observation under the light microscope
Answer
- Prevent dirt /dust from getting into the specimen;
- Remove air bubbles;
- Remove air bubbles;
Question 4
Explain the significance of the following in the feeding of a mammal
(a) Long tongue in herbivores
(b) Canine in carnivores.
Answer
(a) Turning / manipulation of grass during cutting by teeth
(b) Piercing / tearing / griping;
(b) Piercing / tearing / griping;
Question 5
Name the part of maize seed that elongates to bring about hypogeal germination.
Answer
The epicotyl