In Bryophytes, the sporophyte is dependent on the larger gametophyte, whereas, in Angiosperm and Gymnosperms, the gametophyte generation is dependent on the larger sporophyte generation.
<h3>Difference between gametophyte and sporophyte.</h3>
- The gametophyte is the haploid(n) state in the life cycle whereas the sporophyte is the diploid(2n) state in the life cycle.
- Gametophyte leads to gamete formation whereas sporophyte leads to the formation of spores.
- Spore formation takes place post meiosis whereas gamete formation either occurs directly or through mitosis.
- The meiospore grows to develop into the gametophyte. The zygote grows to produce sporophytes
- The cells in sporophytes have two genomes or possess two sets of chromosomes. The cells of the gametophyte have a single genome or produce one set of chromosomes.
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This statement is true.
Chitin is a polysaccharide made up of N - acetylglucosamine .
Fungi cell walls are made of chitin. Chitin is also the major ingredient of the exoskeletons of crustaceans and arthropods. Spiders, beetles, butterflies, lobsters, shrimps and crabs all have chitin in their protective armor.
when intermixed with protein and other pigments, it forms different levels of hardness and a variety of distinct colors. Alone, chitin appears translucent and not hard. In arthropods, it is secreted by epidermal cells.
A type of Cell division that results in four daughter cells each with half the number of chromosomes of the parents cells as in production of gametes and plant spores.
Answer:
Sistema excretor. El sistema excretor o sistema urinario es un aparato del cuerpo humano. Está formado por los riñones y la vía excretora, en él ocurre el proceso excretor, que consiste en limpiar la sangre de sustancias de desecho formando la orina y expulsarlas al exterior por la uretra.
Explanation: