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 89 of 157
- A. Lower part
- B. Upper part
- C. Middle part
- D. Fertile part
Explanation: The apophysis in the capsule of Funaria is the lower part.The apophysis is the basal part of the Funaria capsule.
Correct answer: Lower part- A. Megaspore, endosperm and embryo
- B. Megaspore, pollen grain and endosperm
- C. Megaspore, integument and root
- D. Pollen grain, leaf and root
Explanation: The haploid structures in Pinus/gymnosperms are megaspore, pollen grain, and endosperm.
Correct answer: Megaspore, pollen grain and endosperm- A. Pteris archegonia repel Funaria sperms
- B. Funaria sperms get killed by Pteris sperms
- C. Funaria sperms are less mobile
- D. Pteris archegonia release chemical to attract its sperms.
Explanation: The correct answer is Pteris archegonia release chemical to attract its sperms. Archegonia are female reproductive organs in plants.
Correct answer: Pteris archegonia release chemical to attract its sperms.- A. Heterospory
- B. Rhizophore
- C. Strobili
- D. Ligule
Explanation: The evolutionary important character of Selaginella is heterospory.Heterospory is the production of two different types of spores…
Correct answer: Heterospory- A. Triploid
- B. Haploid
- C. Diploid
- D. Tetraploid
Explanation: The endosperm in Pinus/Cycas/gymnosperms is haploid.The endosperm is a tissue that provides nutrients to the developing embryo.
Correct answer: Haploid- A. Apospory
- B. Apogamy
- C. Parthenocarpy
- D. Parthenogenesis.
Explanation: The correct answer is Apogamy. Apospory is the development of a sporophyte from a gametophyte without fertilization.
Correct answer: Apogamy- A. Isogamy
- B. Homogamy
- C. Somatogamy
- D. Hologamy
Explanation: The sexual reproduction in Chlamydomonas involving fusion of two cells is isogamy.
Correct answer: Isogamy1768. Coconut fruit is a
- A. Berry
- B. Nut
- C. Capsule
- D. Drupe
Explanation: A coconut fruit is a drupe.A drupe is a type of fruit that has a hard, stony endocarp (pit) surrounding the seed.
Correct answer: Drupe- A. Brassica
- B. Trifolium
- C. Pisum
- D. Cassia
Explanation: Radial symmetry is found in the flowers of Brassica.Brassica is a genus of plants that includes cabbage, broccoli, cauliflower, and kale.
Correct answer: Brassica- A. Phylloclades
- B. Scales
- C. Cladodes
- D. Phyllodes
Explanation: (a) : Phylloclades are flattened green stems which have taken over the function of photosynthesis while cladodes are only the branches of…
Correct answer: Phylloclades- A. Dianthus
- B. Argemone
- C. Brassica
- D. Citrus
Explanation: The correct answer is Dianthus. Dianthus: In Dianthus, also known as carnations, the ovary has a single chamber, and the ovules are borne…
Correct answer: Dianthus- A. Vexillum
- B. Corona
- C. Carina
- D. None of these
Explanation: (a) : The posterior large bilobed petal of a papilionaceous corolla is called standard or vexillum.
Correct answer: Vexillum- A. Fabaceae
- B. Poaceae
- C. Liliaceae
- D. Solanaceae
Explanation: (c) : Liliaceae is a family of flowering plants that includes lilies, tulips, and onions.Members of Liliaceae possess tricarpellary…
Correct answer: Liliaceae- A. Tendrils of cucumber
- B. Flattened structures of Opuntia
- C. Pitcher of Nepenthes
- D. Thorns of citrus
Explanation: (c) : Pitcher of Nepenthes is a modification of leaf. The correct answer is Pitcher of Nepenthes.Tendrils of cucumber, flattened…
Correct answer: Pitcher of Nepenthes- A. Scutellum
- B. Coleoptile
- C. Epiblast
- D. Coleorhiza
Explanation: The wheat grain has an embryo with one large, shield-shaped cotyledon known as the scutellum.
Correct answer: Scutellum- A. Pea
- B. Argemone
- C. Dianthus
- D. Lemon
Explanation: (d) :Axile placentation occurs in syncarpous pistils. Lemon is the only plant listed that has axile placentation.
Correct answer: Lemon- A. Pea
- B. Wheat
- C. Sunflower
- D. Pistia
Explanation: (d) : Pistia (water lettuce) is a floating aquatic plant. In aquatic plants, roots are generally poorly developed and do not take part in…
Correct answer: Pistia- A. Mustard
- B. Rose
- C. Guava
- D. Cucumber
Explanation: Mustard (Brassicaceae) has hypogynous flowers, meaning the ovary is superior and the other floral parts are attached below it.
Correct answer: Rose- A. Aloe
- B. Tomato
- C. Tulip
- D. Indigofera
Explanation: (d) : The flowers of Family Papilionaceae have butterfly shaped corolla (papilionaceous corolla). The correct answer is Indigofera.
Correct answer: Indigofera- A. Onion
- B. Silk cotton
- C. Opuntia
- D. Pea
Explanation: (c) : In xerophytic plants, the leaves modify into sharp, pointed spines e.g. Aloe, Solanum surattense, Opuntia, Asparagus etc.
Correct answer: Opuntia