21. Which of the following is not a characteristic of insectivorous plants?
[A] the plants that trap insects
[B] derive nutrition from dead and decaying plants and animals
[C] Their leaves are modified into special structures which traps the insects and digest
[D] These plants grow on the soil that lacks minerals
Show Answer
Correct Answer: B [derive nutrition from dead and decaying plants and animals]
Notes:
Insectivorous plants are plants that trap insects. Their leaves are modified into special structures that trap insects and are digested with the help of digestive enzymes to obtain nutrition from those insects. These plants grow on soil that lacks minerals.
22. Which of the following are the end products of the process of double fertilization in plants?
[A] Zygote and Triploid Endosperm
[B] Pollen and Ovule
[C] Seed and Fruit
[D] Stamen and Carpel
Show Answer
Correct Answer: A [Zygote and Triploid Endosperm]
Notes:
In the process of double fertilization, two sperms are involved. One fertilizes the egg to form a diploid zygote, while the other combines with two polar nuclei to form a triploid endosperm. The endosperm provides nutrients during seed development. This phenomenon is unique to angiosperms, a group of flowering plants.
23. What is the appearance of the most advanced character in a crocodile?
[A] Powerful jaws
[B] Shelled eggs
[C] Thecodont dentition
[D] Four chambered heart
Show Answer
Correct Answer: D [Four chambered heart]
Notes:
The four-chambered heart is the most advanced character in a crocodile which makes them different from other reptiles. The four-chambered heart is characteristic of the mammalian class. The presence of this type of heart makes crocodiles similar to mammals.
24. Ducks, swans, and geese are examples of which of the following order?
[A] Charadriiformes
[B] Galliformes
[C] Anseriformes
[D] Columbiformes
Show Answer
Correct Answer: C [Anseriformes ]
Notes:
Ducks, swans, and geese are examples of Anseriformes order. They are characterized by having short modified legs for swimming, a wide beak, medium to long neck, pointed and narrow fins, and a short tail.
25. Which layer of the dermis accounts for 20% of the dermis and has finger-like pegs that lie next to the epidermis?
[A] Spiny Layer
[B] Papillary Layer
[C] Basal Layer
[D] Granular Layer
Show Answer
Correct Answer: B [Papillary Layer]
Notes:
The Papillary Layer of the dermis accounts for 20% of the dermis and has finger-like pegs that lie next to the epidermis.
26. Which of the following tissue is found in the inner walls of organs?
[A] Visceral Muscle Tissue
[B] Skeletal Muscle Tissue
[C] Cardiac Muscle Tissue
[D] None of these
Show Answer
Correct Answer: A [Visceral Muscle Tissue]
Notes:
Visceral Muscle Tissue is found in the inner walls of organs. While Skeletal Muscles are typically attached to bones and Cardiac muscles are found in the heart.
27. The sternum is a very important bone that protects the __
[A] Brain
[B] Heart
[C] Lungs
[D] Liver
Show Answer
Correct Answer: B [Heart]
Notes:
The sternum is a very important bone that protects the Heart. It also serves as the connection point for the coastal cartilage.
28. Arrange the correct sequence of the steps involved in the process of the Human Digestive System?
[A] Digestion, Ingestion, Assimilation, Egestion and Absorption
[B] Ingestion, Digestion, Absorption, Assimilation and Egestion
[C] Egestion, Absorption, Digestion, Assimilation and Ingestion
[D] Assimilation, Absorption, Ingestion, Digestion and Egestion
Show Answer
Correct Answer: B [Ingestion, Digestion, Absorption, Assimilation and Egestion]
Notes:
Ingestion, Digestion, Absorption, Assimilation, and Egestion are the correct sequence of the steps involved in the process of the Human Digestive System.
29. Gastroesophageal reflux disease is related to which of the following?
[A] circulatory system
[B] digestive system
[C] respiratory system
[D] excretory system
Show Answer
Correct Answer: B [digestive system]
Notes:
Gastroesophageal reflux disease is related to the digestive system. Gastroesophageal reflux disease (GERD) occurs when stomach acid repeatedly backs up into the tube connecting your mouth and stomach (esophagus).
30. What is the enzyme that breaks down lactose?
[A] Lipase enzymes
[B] Pepsin
[C] Amylase
[D] Lactase
Show Answer
Correct Answer: D [Lactase]
Notes:
Lactase is the enzyme that breaks down lactose.
