10th Class Biology Chapter 5 Reproduction Short Questions Answer
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10th Class Biology Chapter 5 Reproduction Short Questions Answer
Genetic disorder in which person fails to recognize the basic colour.
Tympanic membrane a membrane stretched across the inner end of the auditory canal of the ear.
These are the or gam that receive information from receptors and send message to particular or gam for proper action brain and spinal cord are coordination. They are two types of coordination in organisms.
Neuron are specialized cells that are able to conduct nerve impulse from receptor to coordination and from coordination to effectors.
Cerebellum:The part of the hind brain and contrails muscles movement.
Complete less of function by one or more muscle group due to damage in the nervous system.
Cloning is the latest method of vegetative propagation. In this method, identical off spring are produced from a single parent using the parent tissue of vegetative cells.
The nerve which contain only the axons of sensory neurons.
The endocrine system chemically controls the various function of cells tissues and organs through the secretion of hormone. The endocrine system include the adrenal gland parathyroid gland pituitary gland and thyroid pancreas and taste.
Reproduction is defined as the production of individuals of the same species i.e. the next generation of species. It is of two types.
1. Sexual reproduction
2. A sexual reproduction
The endocrine gland attached to the hypothalamus that controls many other endocrine glands in the body.
Self-pollination is defined as the transfer of pollen grain from the anther to the stigma of the some flower or other flower of the same plant.
Body synthesizes rhodopsin from vitamin A and that is why the deficiency of vitamin A cause poor night vision.This problem is called night blindness.
Sexual reproduction involves the production and fission of gametes special structures produce sperms and egg cells and there are various method in plants for bringing the sperm and egg nuclei together.
Spores formation also occurs in bacteria such as clostridium and bacillus species. These bacterial spores are also called endospores.They are thick walled and are formed under unfavorable conditions.
Cross pollination is the transfer of pollen grain from the flower on one plant to the flowers on the plant of same species. Cross pollination is brought about by various agencies lime, wind, water, bees, birds, bats and other animal’sincluding man.
In epigeal germination, the hypocotyls elongates and form hook, pulling the cotyledon above ground Beans, cotton and papaya are examples of plants that germinate this way.
Parthenogenesis is also considered as a form of asexual reproduction in it, and unfertilized egg develops into new off espying some fishes, frogs and insects reproduce by means of parthenogenesis.
Flower is the reproductive structure in sporophyte generations the outermost two whorls in a flower are the non-reproductive whorls while the inner two whorls are the reproductive whorls.
Blind spot a point on the retina of the eye where the optic nerve enters the retina no photosensitive cell exit at this point.
The spores develop into gametophyte generation. The gametophyte is tiny as compared in the sporophyte. It is haploid and produces gametes by mitosis.
Fourth whorl of flower is gynoecium which is the female reproductive part of flower its units are called carpals.
The organ tissues or cells which detect particular type of stimuli.
A condition that is due to low blood calcium and is characterized by spasms of the hand and feet tetany is generally considered to result from very low calcium level in blood.
The radical of embryo develops into new root while the plumule develops into new shoot.
Rhizomes are horizontal underground stems with scale leaves, there are enlarged portion called nodes on rhizome. Buds are produced at nodes. The buds present on the upper surface of rhizomes reproduce by rhizomes.
In most plants the sporophyte generation is dominant. It is diploid (2N) and produced haploid(1N) Spore by meiosis.
The part of the forebrain below the thalamus control body temperature blood pressure and emotion.
Pollination is defined as the transfer of pollen grains from anther to stigma. Two types of pollination are recognized.
i. Self-Pollination
ii. Cross pollination
Seed coat develops from the integument, originally surrounding the ovule, seed coat in mature seed may be a paper thin layer or thick and seed coat protects embryo from mechanical injury and from drying out.
