Free Biodiversity and Variety of Life MCQs with Answers

2771. pH tolerable by fungi range from:

• A. 2-3
• B. 2-5
• C. 5-7
• D. 2-9

Explanation: Fungi can survive in a wide pH range from 2 to 9.

2772. Mucor and Rhizopus are included in phyla/division:

• A. Basidiomycota
• B. Ascomycota
• C. Deutromycota
• D. Zygomycota

Explanation: These are common molds that belong to the Zygomycota division.

2773. Mushroom belongs to:

• A. Zygomycota
• B. Ascomycota
• C. Basidiomycota
• D. Deuteromycota

Explanation: Mushrooms are fruiting bodies of Basidiomycota.

2774. Poisonous mushrooms are popularly called?

• A. Danger stools
• B. Toad stools
• C. Break stools
• D. Dark stools

Explanation: Poisonous mushrooms commonly called toadstools.

2775. Fungi that maintain soil fertility by decomposing the dead organic matter include:

• A. Endophytic Fungi
• B. Mycorrhizal fungi
• C. Ergot
• D. Rhodotorula

Explanation: Mycorrhizal fungi are more directly linked to sol fertility.

2776. The scientific name of button mushroom is:

• A. Aspergillus flavus
• B. Candida albicans
• C. Agaricus bisporus
• D. Histoplasma capsulatum

Explanation: The common button mushroom is scientifically named Agaricus campestris.

2777. Rusts belong to the group of club fungi they are called so because:

• A. Orange-yellow colored disease spots on their host surface
• B. Dusty spore masses that resemble soot
• C. Rust fungi have fruiting bodies
• D. Puccinia species

Explanation: Rust fungi produce orange-yellow, powdery lesions on infected plant surfaces that resemble rusted iron, which is why they are commonly called rusts. These brightly colored spore masses give the disease its characteristic name.

2778. Athlete's Foot is a disease caused by

• A. Bacteria
• B. Virus
• C. Fungus
• D. Arthropod

Explanation: Athlete's foot is an infection of the feet caused by fungus. The medical term is tinea pedis or ringworm of the foot.

2779. Which of the following endoparasites of humans does show viviparity?

• A. Trichinella spiralis
• B. Ascaris lumbricoides
• C. Ancylostoma duodenale
• D. Enterobius vermicularis

Explanation: Trichinella spiralis is a nematode parasite, occurring in rodents, pigs, horse, bears and humans, and is responsible for the disease trichinosis. It is sometimes referred to as the "pork worm" due to it being found commonly in undercooked pork products. Trichinella spiralis is the smallest known nematode parasite of humans. The males measure about 1.4 mm to 1.6 mm in length and the females are twice the size of the males. The body of the worm is more slender at the anterior then at the posterior end. In females the uterus is contained in the posterior portion of the worm and is filled with the developing eggs. The anterior end of the female contains hatching juveniles.

2780. Fungi which cause thrush in humans:

• A. Sarcomeres
• B. Candidiasis
• C. Lovastatin
• D. Aspergillus

Explanation: Excess growth of Candida fungus in the mouth causes a condition known as "Oral thrush" or "Oral Candidiasis".