Biology - Study Mode
[#981] It is commonly found in the bottom tidal pools?
Correct Answer
(B) Ulva
Explanation
Solution: Ulva is commonly found in the bottom tidal pools.
[#982] What type of tissue is Blood?
Correct Answer
(C) Connective
Explanation
Solution: Blood is connective tissue.
[#983] The layer of cells between endodermis and vascular bundles is called
Correct Answer
(A) Hypodermis
Explanation
Solution: The layer of cells between endodermis and vascular bundles is called pericycle.
[#984] Gymnosperms are characterized by the
Correct Answer
(B) Presence of flowers
Explanation
Solution: Gymnosperms are a group of seed-producing plants that include conifers, cycads, Ginkgo, and gnetophytes. They are characterized by the following features: Presence of seeds in cones : Gymnosperms produce seeds that are not enclosed within a fruit but are typically borne naked on the surface of cone scales or other structures. These cones are the reproductive structures of gymnosperms. Absence of seeds: This is incorrect. Gymnosperms are seed-producing plants, and they produce seeds, albeit without an enclosing fruit. Presence of flowers: Gymnosperms do not produce flowers. Instead, they reproduce through cones or similar structures. Absence of vascular tissues: This is incorrect. Gymnosperms possess vascular tissues, including xylem and phloem, for the transport of water, nutrients, and sugars throughout the plant. Therefore, Option C accurately describes one of the key characteristics of gymnosperms.
[#985] In a bisexual flower if androecium and gynoecium mature at different time the phenomenon is known as ________
Correct Answer
(A) Dichogamy
Explanation
Solution: In bisexual flower the production of male and female flower androecium and gynoecium mature at different times to avoid self-fertilization. That is called dichogamy.