Advertisements
Advertisements
प्रश्न
Would a Planaria cut vertically into two halves regenerate into two individuals? Complete Figure D and E by indicating the regenerated regions.
 |
 |
 |
 |
 |
| A | B | C | D | E |
Advertisements
उत्तर
Yes, a Planaria would regenerate into two individuals if cut vertically into two halves.
The regenerated regions in D and E are shown by shaded parts below.
 |
 |
| D | E |
APPEARS IN
संबंधित प्रश्न
Your school has been selected by the Department of Education to organize and host an interschool seminar on “Reproductive Health – Problems and Practices”. However, many parents are reluctant to permit their wards to attend it. Their argument is that the topic is “too embarrassing.” Put forth four arguments with appropriate reasons and explanation to justify the topic to be very essential and timely.
What do you think is the significance of reproductive health in a society?
Suggest the aspects of reproductive health which need to be given special attention in the present scenario.
Name the contraceptive device used by human females which is put over the cervix.
Name two devices used in the barrier method of birth control.
What is done in the contraception method known as tubectomy?
In which one of the following birth control methods, a small portion of oviducts of a woman is removed by surgical operation and the cut ends are ligated?
(a) copper-T
(b) tubectomy
(c) vasectomy
(d) diaphragm
AIDS is a deadly disease which is caused by :
(a) a protozoan
(b) a fungus
(c) a bacterium
(d) a virus
Name the kind of diseases/disorders that are likely to occur in humans if
(i) mutation in the gene that codes for an enzyme phenyl alanine hydrolase occurs,
(ii) there is an extra copy of chromosome 21,
(iii) the karyotype is XXY.
Draw a well labelled diagram of L.S. human testis.
The technique which makes use of amniotic fluid for the detection of prenatal disorder is called as ______.
RCH stands for ______.
Reproductive health includes ______.
From the internet, gather information about the chromosome numbers of five animals and five plants. Correlate the number with the size of organism and answer the following questions.
- Do larger organisms have more number of chromosomes/cells?
- Can organism with fewer chromosomes reproduce more easily than organisms with more number of chromosomes?
- More the number of chromosomes/cells greater is the DNA content. Justify.
How are general growth and sexual maturation different from each other?
Select the statement(s) that relate to reproductive health:
Comment on the Reproductive and Child Health Care programme of the government to improve the reproductive health of the people.
Enumerate and describe any five reasons for introducing sex education to school-going children.
In the context of reproductive health, infertility is clinically defined as:
