Low tides expose an intertidal zone to air while high tides cover the intertidal zone with ocean water. When exposed to air the intertidal region is directly exposed to the sun and there will be high temperature. 

Thus the animals have to cope up with the extreme heat and also have to face colder environment when under the sea. Since there is change in salinity the organisms have to handle this as well.

Some animals with shells close their shell tightly to seal moisture. Animals like snails and crabs have thick outer covering to prevent water loss by evaporation. 

Organisms like leaf barnacles cluster together to avoid individual exposure. Animals like sea stars cling to the rocks to avoid being washed away by the waves. 

3 0

2 years ago

There are many routes of administration that can deliver drugs directly to the developing fetus. The direct fetal routes of drug

rjkz [21]

Answer:

The correct answer is option - 1. If passage through the placenta is adversely affected by fetal disease. and 4. If rapid drug effects are required.

Explanation:

Normally the drug that is provided and administrated to the fetal is through the placenta of the mother. The direct delivery of medicine can be dangerous. However, with the advancement of the medical technology direct fetal drug administration is possible and it assists in the rapid uptake of the drug by the fetus.

If the fetus requires a rapid drug effect it can be provided by direct drug delivery. Also when the placental is not working properly and affected by the disease it is recommended to provide the fetus with the drug with the help of direct delivery.

Thus, the correct answer is : 1. If passage through the placenta is adversely affected by fetal disease. and 4. If rapid drug effects are required.

3 0

2 years ago

The theory of _______ argues that humans and non-humans produce and change one another through interactions with each other.

-BARSIC- [3]

Theory of co-production

7 0

2 years ago