1. 13
2. 17
3. 19
4. 25
13
1. Smoke
2. Industrial waste
3. Ammonia
4. Detergents
Industrial waste
1. Cleavage divisions bring about considerable increase in mass of protoplasm
2. In the second division,one of the two blastomeres usually divides a little sooner than the second
3. With more cleavage division,the resultant blastomers becomes larger and larger
4. Cleavage division result in hollow ball of cells called morula
In the second division,one of the two blastomeres usually divides a little sooner than the second
1. 25,000
2. 20,000
3. 15,000
4. 10,000
25,000
1. Gestation
2. Menopause
3. Lactation
4. Menstruation
Menstruation
1. endangered species
2. vulnerable species
3. rare species
4. All of the above
rare species
1. The menstrual fluid can easily clot
2. During normal menstruation about 40mL blood is lost
3. The beginning of the cycle of menstrucation is called menarche
4. At menopause in the female,there is especially abrupt increase in gonadotropic hormones
The menstrual fluid can easily clot
1. Harvesting of trees for timber and forest products is permitted
2. Only wild fauna are protected
3. Private ownership is allowed
4. All of the above
All of the above
1. Lion,bat,whale,ostrich
2. Platypus,penguin,bat,hippopotamus
3. Shrew,bat,cat,kiwi
4. Kangaroo,hedgehog,dolphin,loris
Kangaroo,hedgehog,dolphin,loris
1. should be buried deep in the soil
2. can be used for production of energy
3. should be treated with chemicals to prevent breeding of organisms
4. should be dumped into the sea
can be used for production of energy