Answer:
Water pollution may be defined as the contamination of the unwanted substance or pollutant with water that changes the normal characteristics of water. Three main contributors of ground water are as follows:
Chemical farming: The use of pesticides and fertilizers in the fields and its direct run off in river and groundwater causes the water pollution.
Industrial waste: The industrial waste consists of harmful chemicals and heavy metals. The direct discharge of chemical waste in the lakes, ground water and ponds makes the water dirty and causes water pollution.
Effluent from waste water treatment plant: The effluent and the harmful chemical waste release from the waste water treatment plant is the major contributor to the ground water. The effluents mix with the ground water and changes the ground water property.
Answer: The correct options are statement first and fourth that is -
It is synthesized toward the replication fork and it is synthesized in the 5′ to 3′ direction.
Leading strand in DNA is the strand of new DNA being synthesized in the same direction where the replication fork is moving. The movement of replication fork allows the access of template for the new DNA.
The DNA synthesis is continuous in the leading strand. It is synthesized in the 5' to 3' as DNA synthesis always takes place in this direction. This is because dNTP ( deoxyribonucleoside triphosphate) provides free 3' OH group where new dNTP can be added by the enzyme DNA polymerase.
The acronym that is commonly used to remember the elements of a valid and enforceable contract is COAL.
What is the COAL acronym?
- Any contract must contain four basic features in order to be valid.
- In other words, a real estate contract must include these important characteristics in order to be legally binding.
- The abbreviation COAL might help you remember the four important contract elements.
- Consideration is defined as a value exchange. The parties' values exchange could be equal, but it is not needed.
- A proposal must be made. The buyer typically makes the offer in real estate negotiations.
- In a real estate contract, the offeree, who could be the seller or bidder depending on whether there were any counter-offers, will do this.
- The goal of the real estate deal must be legitimate.
To learn more about contracts refer to:
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Answer:
Epinephrine binds to receptors on some smooth muscles (ex: around arterioles) → Ca++ released from ER → intracellular Ca++ up → stimulates contraction. c. Epinephrine binds to receptors on some smooth muscles (ex: around bronchioles) → phosphorylates protein needed for response to Ca++, preventing response.
