In human female reproductive system, there are two ovaries. One egg is produced every month during ovulation: (i) The ovum egg goes into the oviduct or fallopian tube. (ii) The sperms released by the human male during copulation or mating are deposited at the top of the vagina close to the cervix ofRead more
In human female reproductive system, there are two ovaries. One egg is produced every month during ovulation:
(i) The ovum egg goes into the oviduct or fallopian tube.
(ii) The sperms released by the human male during copulation or mating are deposited at the top of the vagina close to the cervix of uterus. The sperms travel or goes through the uterus to the top of the tube of fallopian.
(iii) The fertilization of the ovum or egg takes place in the oviduct and a zygote is formed.
(iv) The zygote divides rapidly as it moves down slowly in the oviduct and forms a hollow ball of hundreds of cells called embryo. The close attachment of embryo to the uterine wall is called implantation.
(v) After implantation, a number of development changes takes place in embryo as well as in the wall of uterus. In the developing embryo, is called, foetus where body features are clearly seen.
(vi) A disc – like special tissue develops between the uterine wall and the foetus which is called placenta. The exchange of nutrients, oxygen and waste products between the embryo and the mother takes place through the placenta.
(vii) The time period from the fertilization up to the birth of baby is called gestation. Generaaly in humans, the average period of gestation is about 40 weeks or 280 days or nine months, from the first day of the last menstruation.
(viii) The rhythmic contraction of uterus muscles gradually pushes the baby out of the mother’s body through vagina which is called parturition. This the way, when a new born baby comes to earth.
Yes, the statement is correct. Plants respire throughout the whole day, while photosynthesis process takes place only in the presence of sunlight. In daytime, CO₂ produced during respiration is used by the plants in photosynthesis. So, CO₂ is not released into the environment. The oxygen produced duRead more
Yes, the statement is correct. Plants respire throughout the whole day, while photosynthesis process takes place only in the presence of sunlight. In daytime, CO₂ produced during respiration is used by the plants in photosynthesis. So, CO₂ is not released into the environment. The oxygen produced during photosynthesis, is released into air through stomata.
Now, try to understand that – at night, when there is no photosynthesis process is happen, no oxygen is released. Also, CO₂ produced during respiration is not used by the plants. So, it is released in the air.
Tropical Cyclone Jasper to make landfall, Power cuts, heavy rain & flash floods on Wednesday. On Wednesday afternoon, Northeastern Australian cities, including Queenslanders, Cairns and Port Douglas, brace for Tropical Cyclone Jasper's arrival. The storm in the Coral Sea brings threats of flashRead more
Tropical Cyclone Jasper to make landfall, Power cuts, heavy rain & flash floods on Wednesday. On Wednesday afternoon, Northeastern Australian cities, including Queenslanders, Cairns and Port Douglas, brace for Tropical Cyclone Jasper’s arrival. The storm in the Coral Sea brings threats of flash flooding, destructive” winds, and storm tides. Meteorologists predict winds up to 140 km per hour with heavy rain.
Write in proper sequence the process going on in the different organs of the reproductive system of a human female starting from the time of egg production to childbirth.
In human female reproductive system, there are two ovaries. One egg is produced every month during ovulation: (i) The ovum egg goes into the oviduct or fallopian tube. (ii) The sperms released by the human male during copulation or mating are deposited at the top of the vagina close to the cervix ofRead more
In human female reproductive system, there are two ovaries. One egg is produced every month during ovulation:
(i) The ovum egg goes into the oviduct or fallopian tube.
See less(ii) The sperms released by the human male during copulation or mating are deposited at the top of the vagina close to the cervix of uterus. The sperms travel or goes through the uterus to the top of the tube of fallopian.
(iii) The fertilization of the ovum or egg takes place in the oviduct and a zygote is formed.
(iv) The zygote divides rapidly as it moves down slowly in the oviduct and forms a hollow ball of hundreds of cells called embryo. The close attachment of embryo to the uterine wall is called implantation.
(v) After implantation, a number of development changes takes place in embryo as well as in the wall of uterus. In the developing embryo, is called, foetus where body features are clearly seen.
(vi) A disc – like special tissue develops between the uterine wall and the foetus which is called placenta. The exchange of nutrients, oxygen and waste products between the embryo and the mother takes place through the placenta.
(vii) The time period from the fertilization up to the birth of baby is called gestation. Generaaly in humans, the average period of gestation is about 40 weeks or 280 days or nine months, from the first day of the last menstruation.
(viii) The rhythmic contraction of uterus muscles gradually pushes the baby out of the mother’s body through vagina which is called parturition. This the way, when a new born baby comes to earth.
“All plants give out oxygen during day and carbon dioxide during night”. Do you agree with this statement? Give reason.
Yes, the statement is correct. Plants respire throughout the whole day, while photosynthesis process takes place only in the presence of sunlight. In daytime, CO₂ produced during respiration is used by the plants in photosynthesis. So, CO₂ is not released into the environment. The oxygen produced duRead more
Yes, the statement is correct. Plants respire throughout the whole day, while photosynthesis process takes place only in the presence of sunlight. In daytime, CO₂ produced during respiration is used by the plants in photosynthesis. So, CO₂ is not released into the environment. The oxygen produced during photosynthesis, is released into air through stomata.
Now, try to understand that – at night, when there is no photosynthesis process is happen, no oxygen is released. Also, CO₂ produced during respiration is not used by the plants. So, it is released in the air.
See lessTropical Cyclone Jasper has arrived at which place in Australia, December 2023?
Tropical Cyclone Jasper to make landfall, Power cuts, heavy rain & flash floods on Wednesday. On Wednesday afternoon, Northeastern Australian cities, including Queenslanders, Cairns and Port Douglas, brace for Tropical Cyclone Jasper's arrival. The storm in the Coral Sea brings threats of flashRead more
Tropical Cyclone Jasper to make landfall, Power cuts, heavy rain & flash floods on Wednesday. On Wednesday afternoon, Northeastern Australian cities, including Queenslanders, Cairns and Port Douglas, brace for Tropical Cyclone Jasper’s arrival. The storm in the Coral Sea brings threats of flash flooding, destructive” winds, and storm tides. Meteorologists predict winds up to 140 km per hour with heavy rain.
See less