3. Where are the following structures/parts located and
what are their functions ?
L(
(a) Placenta
(b) Thalamus
(c) Anther
4d) Stigma
Answers
Explanation:
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Answer:(a) Funiculus in the part equivalent to the umbilical cord in which the ovules are attached inside a flower's ovary. The part of the ovary where funiculus is present is called the placenta. Its function is to provide a connection with the ovary walls and the flower and provide nutrients to the developing embryo.
(b) The thalamus is a small structure within the brain located just above the brain stem between the cerebral cortex and the midbrain and has extensive nerve connections to both. The main function of the thalamus is to relay motor and sensory signals to the cerebral cortex.
(c) anther is the lobed part on the top of the stamen which is the male reproductive part of the flower. it produces pollen grains which are the male gametes and fertilize the ovules to form zygote.
(d)stigma is the topmost part of the pistil which is the female reproductive organ of the flower.