BOTANY

BOTANY

PLANT REPRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Because it lives for many years a maple tree is a
A
perennial
B
biennial
C
annual
D
biannual
Explanation: 

Detailed explanation-1: -Woody Perennials: The plants that survive through consecutive growing years with a persistent woody stem (primary or secondary growth) are known as woody perennials. Examples: maple, pine and apple.

Detailed explanation-2: -Asexual reproduction produces individuals that are genetically identical to the parent plant. Roots such as corms, stem tubers, rhizomes, and stolon undergo vegetative reproduction. Some plants can produce seeds without fertilization via apomixis where the ovule or ovary gives rise to new seeds.

Detailed explanation-3: -The fertilized egg, or zygote, contains one set of chromosomes from each of the two sex cells. The zygote then divides, developing into an embryo, which in turn develops the first leaf, root, and stem apex. The resulting plant, the sporophyte, is the characteristic plant that is normally seen.

Detailed explanation-4: -The pollen grains are released from the anther to land on a stigma during pollination. The pollen grain germinates, forming a pollen tube that delivers the sperm to the egg in the ovule during fertilization. The sporophyte embryo develops in the seed. Upon germination of the seed, the sporophyte resumes growth.

Detailed explanation-5: -The life cycle of lower vascular plants exhibits an alternation of generations between gametophytes and sporophytes. The gametophytes are sexual plants producing eggs or sperm or both, and the sporophytes are asexual plants producing spores that are capable of producing new gametophytes.

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