1. | UNEP - United Nations Environmental Policy |
2. | EPA - Environmental Pollution Agency |
3. | IUCN -International Union for Conservation of Nature and Natural Resources |
4. | IPCC -International Panel for Climate Change |
1. | It shows the energy content of different trophic-level organisms |
2. | It is inverted in shape |
3. | It is upright in shape |
4. | Its base is broad |
Match the source gland with its respective hormone as well as the function.
Source gland |
Hormone | Function | |
(a) | Posterior pituitary |
Vasopressin | Stimulates reabsorption of water in the distal tubules in the nephron |
(b) | Corpus luteum |
Prolactin | Supports pregnancy |
(c) | Thyroid | Thyroxine | Regulates blood calcium level |
(d) | Anterior pituitary |
Oxytocin | Contraction of uterus muscles during childbirth |
1. (a)
2. (b)
3. (c)
4. (d)
1. Twelve weeks
2. Eighteen weeks
3. Six weeks
4. Eight weeks
1. | Insects | 2. | Birds |
3. | Angiosperms | 4. | Fungi |
1. | 100/55 mmHg is considered an ideal blood pressure |
2. | 105/50 mmHg makes one very active |
3. | 190/110 mmHg may harm vital organs like the brain and kidney |
4. | 130/90 mmHg is considered high and requires treatment |
Given ahead is an incomplete table about certain hormones, their source glands and one major effect of each on the body in humans. Identify the correct option for the three blanks A, B and C.
Gland | Secretion | Effect on Body |
A | Oestrogen | Maintenance of secondary sexual characters |
Alpha cells of islets of Langerhans | B | Raises blood sugar level |
Anterior pituitary | C | Oversecretion leads to gigantism |
Options: | A | B | C |
1. | Placenta | Insulin | Vasopressin |
2. | Ovary | Insulin | Calcium |
3. | Placenta | Glucagon | Calcitonin |
4. | Ovary | Glucagon | Growth hormone |
1. | the typhlosole greatly increases the effective absorption area of the digested food in the intestine |
2. | the S-shaped setae embedded in the integument are the defensive weapons used against the enemies |
3. | it has a long dorsal tubular heart |
4. | fertilization of eggs occurs inside the body |