Free Biodiversity and Variety of Life MCQs with Answers
3,130 Biodiversity and Variety of Life MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Biological classification uses taxonomic ranks, binomial nomenclature and shared characteristics to organize life into kingdoms. The major groups include prokaryotes, protists, fungi, plants and animals, with comparisons based on cell type, cell wall, nutrition, body organization, reproduction and evolutionary relationships; prokaryotes lack a membrane-bound nucleus.
Last updated
3,130 questions · page 92 of 157
- A. Exocarp
- B. Mesocarp
- C. Endocarp
- D. Mesocarp and endocarp
Explanation: (c): Lemon is a hesperidium type of fruit. It is many chambered fleshy fruit developing from a multi carpellary, syncarpous, multilocular…
Correct answer: Endocarp- A. The vegetation which is found in marshy and saline lake
- B. The vegetation which found in acidic soil
- C. Xerophytes
- D. Epiphytes
Explanation: (a): These special roots, called pneumatophores or knees, develop in mangrove plants, i.e., plants growing in saline marshes.
Correct answer: The vegetation which is found in marshy and saline lake- A. Screw pine
- B. Podostemon
- C. Trapa
- D. Orchid
Explanation: (d): Clinging roots arise from the nodes of stem and penetrate the stem of the host plant. It helps in fixing the plant to the host.
Correct answer: Orchid- A. Flowers can be safely pressed
- B. Reproductive parts are more stable and conservative than vegetative parts
- C. Flowers are nice to work with
- D. Flowers are of various colours
Explanation: (b): Floral features are used to identify because reproductive parts are more stable and conservative than vegetative parts.
Correct answer: Reproductive parts are more stable and conservative than vegetative parts1825. Which plant will lose its economic value, if its fruits are produced by induced parthenocarpy?
- A. Orange
- B. Banana
- C. Grape
- D. Pomegranate
Explanation: (d) developmentt of fruits without fertilization is called parthenocarpy and such fruits are called parthenocarpic fruits.
Correct answer: Pomegranate- A. Banana
- B. Fig
- C. Apple
- D. Pear
Explanation: (a): A fruit is a ripened ovary. On the basis of the formation of fruits, they are classified into two types true fruits and false…
Correct answer: Banana1827. A plant that bears fruit has a column of vascular tissue and a tap root system. This plant is a
- A. Angiosperm and dicot
- B. Gymnosperm and dicot
- C. Angiosperm and Monocot
- D. Gymnosperm and monocot
Explanation: (a): In angiosperms, seeds are produced inside the ripened ovary called fruit.
Correct answer: Angiosperm and dicot1828. Pulses are obtained from
- A. Fabaceae
- B. Asteraceae
- C. Poaceae
- D. Solanaceae
Explanation: (a: Pulses are obtained from Fabaceae. Pulses are very economically as well as nutritionally very important for human beings.
Correct answer: Fabaceae- A. Asteraceae
- B. Solanaceae
- C. Liliaceae
- D. Poaceae
Explanation: (a): Epipetalous stamens with free filaments and fused anthers occur in Asteraceae. Asteraceae possess five stamens with free filaments.
Correct answer: Asteraceae- A. Brassica oleracea varcapitata
- B. Brassica campesteris
- C. Brassica oleracea var botrytis
- D. Brassica oleracea var gemmifera
Explanation: (a): The botanical name of cauliflower is Brassica oleracea belongs to the variety capitata. The family of cauliflower is Cruciferae.
Correct answer: Brassica oleracea varcapitata- A. Solanum nigrum
- B. Solanum tuberosum
- C. Solanum melongena
- D. Solanum lycopersicum
Explanation: The botanical name of the tomato is Solanum lycopersicum.
Correct answer: Solanum lycopersicum- A. Rhizome
- B. Stolon
- C. Bulbils
- D. Sucker
Explanation: (c): Vegetative reproduction in Agave occurs through bulbils. Bulbils are the specialized buds vegetative or floral that modifyinto a…
Correct answer: Bulbils1833. Velamen is found in
- A. Roots of screwpine
- B. Aerial and terrestrial roots of orchids
- C. Leaves of Ficus elastica
- D. Aerial roots of orchids
Explanation: (d): Velamen is found in aerial roots of orchids. In many epiphytic orchids, the aerial roots are covered by a hygroscopic velamen tissue.
Correct answer: Aerial roots of orchids- A. Epicarp
- B. Mesocarp
- C. Endosperm
- D. Cotyledons
Explanation: (d): In groundnut the food/oil reserve is present in cotyledons. It is very important commercial crop of Leguminosae.
Correct answer: Cotyledons- A. Rhizome
- B. Sucker
- C. Stolon
- D. Seed
Explanation: (b): Suckers are the subaerial modification of the stem. They grow obliquely upward from the main stem producing roots from the…
Correct answer: Sucker- A. Epicarp
- B. Mesocarp
- C. Endocarp
- D. Pericarp and thalamus
Explanation: (b): Mango (Mangif era indica) of Family Anacardiaceae is a drupe. The edible part in mango is mesocarp.
Correct answer: Mesocarp1837. Which one yields fibers?
- A. Coconut
- B. Oak
- C. Teak
- D. Sisso
Explanation: (a): Coconut (Cocos nucifera) is commercial fibres yielding crop. Fibres originate from the upper epidermal surface of seed.
Correct answer: Coconut- A. Male gamete
- B. Pollen tube
- C. Water
- D. Gases.
Explanation: (c) The micropyle of the seed is involved in the passage of water. Micropyle plays a very important role in absorbing water during the…
Correct answer: Water- A. Vasculature without cambium
- B. Cambium sandwiched between phloem and xylem along the radius
- C. Open vascular bundles
- D. Cattered vascular bundles
Explanation: (a) : In monocot root, a large number of vascular bundles are arranged in the form of a ring around the central pith.
Correct answer: Vasculature without cambium- A. Secondary xylem
- B. Secondary phloem
- C. Protoxylem
- D. Cortical cells
Explanation: (c): In stems, the protoxylem lies towards the center (pith) and the metaxylem lies towards the periphery.
Correct answer: Protoxylem