Why is fertilization in flowering plants called double fertilization?​     two cells in the ovule are fertilized, the egg and the endosperm mother cell   it takes the efforts of two flowers (male and female) to produce seeds   two ovules must be fertilized to form a single seed   one pollen grain fertilizes two ovules   it takes two pollen grains to fertilize a single ovule

Suppose that 100 pollen grains land on a stigma, and 50 mature seeds are formed in the fruit. What does this indicate about the pollination process and success? A) 100% success: 100 pollen grains grew to 50 ovules, two to each, and double fertilization occurred. B) 100% success: Only 50% of the pollen grains germinated, but each produced 2 sperms to complete double fertilization in 50 seeds. C) 50% success: 50 sperm fertilized 50 eggs, and 50 sperm fused with 50 polar nuclei. D) 50% success: 50 sperm fertilized 50 eggs, and 50 sperm fused with 100 polar nuclei.   correct answer and explanation why please.

Theophrastus of Lesbos, Aristotle’s successor as head of the Lyceum, improved upon Aristotle’s botany by classifying all dicotyledons as flowering plants with: two seed-leaves in the embryo, branching leaf veins, and flower parts in multiples of 4 or 5 one seed-leaf in the embryo, branching leaf veins, and flower parts in multiples of 4 or 5 one seed-leaf in the embryo, parallel leaf veins, and flower parts in multiples of 3 or 6 two seed-leaves in the embryo, parallel leaf veins, and flower parts in multiples of 3 or 6 two seed-leaves in the embryo, branching leaf veins, and flower parts in multiples of 3 or 6

The sporophyte develops within the female gametophyte. Examine the mature sporophyte image. The sporophyte is attached to the gametophyte by a foot. Spores are produced by meiosis in a capsule located on a stalk that extends downward from the foot. The long green strands located among the spores are called elaters. The elaters assist in spore dispersal. Label the sporophyte

What is the pore in ovule through which the pollen tube enters called?

Which of the following events must occur before fertilization can happen? -Double meiosis -seed coat formation -endosperm formation -Pollination -fruit development

Rate the structures below based on their sizes with 1 being the biggest and 4 being the smallest.   Sperm   Petal   Ovary   Ovule   One of the differences between gymnosperms and angiosperms is the placement of the microsporangia and macrosporangia in the sporophyte.   True   False   Seeds are produced in special protective tissues of a sporophyte.   True   False   Pollen grains are released from macrosporangia in anthers.   True   False

What are the post fertilizational changes in the flower?

Which of the following is true for bryophyte reproduction but NOT angiosperms or gymnosperms? Male and female plants must be close to one another for fertilization to occur. There are separate male and female gametes. O Plants are bisexual. They experience alternation of generations.

Theophrastus of Lesbos, Aristotle’s successor as head of the Lyceum, improved upon Aristotle’s botany by classifying all monocotyledons as flowering plants with: two seed-leaves in the embryo, branching leaf veins, and flower parts in multiples of 4 or 5 one seed-leaf in the embryo, branching leaf veins, and flower parts in multiples of 4 or 5 one seed-leaf in the embryo, parallel leaf veins, and flower parts in multiples of 3 or 6 two seed-leaves in the embryo, parallel leaf veins, and flower parts in multiples of 3 or 6 two seed-leaves in the embryo, branching leaf veins, and flower parts in multiples of 3 or 6