In human, Reproduction is done when two gametes i.e a sperm and an ovum fuse to give a zygote and eventually an offspring.
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Explanation:</u></h3>
Reproduction is the process by which a living organism can produce more individuals of same species to continue a race. Reproduction is of various types - asexual reproduction and sexual reproduction.
But in human, only sexual reproduction is seen. Here in human, males do produce sperms in their testis from the sperm mother cells by means of meiosis. Females do produce ovum in their ovary by means of meiosis from ovum mother cell.
Now the fertilization in human is internal fertilization which is achieved by means of coitus or sex between a male and female, where the male inserts his penis into female vagina to release the sperms. These sperms do swim into uterus and then into ampulla region of fallopian tube where it meets the ovum, and fertilization occurs. Then the zygote swims to uterus by passive movements and settle there which is called implantation. Then eventually the cell divisions lead it into a multicellular embryo and then after a gestation period of about 278 days, the baby is delivered. A new offspring is born.
Our blood is blue it just comes out red when it hits the air or oxygen.
Answer:
Decomposers (Figure below) get nutrients and energy by breaking down dead organisms and animal wastes. Through this process, decomposers release nutrients, such as carbon and nitrogen, back into the environment. ... Many of these nutrients are recycled back into the soil, so they can be taken up by the roots of plants.
Explanation:
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Answer:
Asexual Reproduction
the creation of offspring involving only one parent
the parent passes an identical set of its DNA to all offspring
all organisms that reproduce asexually are clones, or exact copies, of their parents
Fission
Budding
Fragmentation
Explanation:
Organisms do not have to find a mate
Produces a great number of offspring
Disadvantages:
Lacks genetic variety as all offspring are exact copies of the parent
Rapid reproduction can increase competition for resources such as nutrients, sunlight, and space
Low genetic variety can make a population more susceptible to disease
Sexual Reproduction
the creation of offspring involving two parents
both parents contribute a set of DNA that combines to create offspring
all organisms that reproduce sexually will produce unique offspring that share genetic material with the parents but are not exact copies
The Process