Archaeopteryx had "teeth, three claws on each wing" similar to dinosaurs. So, most appropriate answer would be Teeth & Wings
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Answer:
a scientific question is a hypothesis. which has to be testable.
Explanation:
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The concentration gradient will be in the direction from the cell to the outside of the cell .
<h3>What is concentration gradient and how the direction is from inside to the outside ?</h3>
- Concentration gradient will be from inside of the cell to the outside of the cell that is from high concentration to the low concentration.
- The concentration of substances inside the cell if given to be more than the concentration of the substance inside the cell.
- We have always studied that the direction of concentration gradient is from high to low.
- Since the concentration inside is high so the direction will start from the higher concentration.
- To the place where concentration is low that is outside of the cell.
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Answer:
Because fish are their own species.
1. The correct answer is B. Conservation tillage practices help the soil erosion and also maintains soil nutrient levels.
Conservation tillage is termed as the tillage system which helps to conserve energy, soil, water through retention of crop residue and reduction of tillage intensity.
2. Correct answer is A. Aquifers 1 and 3 may result in a reduced river flow. Aquifer is termed as the underground layer of rock fractures, water-bearing permeable rock.
Hydrogeology is termed as study of water flow which is found in aquifers.
3. Correct answer is A. Recycling materials helps decrease the amount of new material which are taken from environment.
Most household can be recycled. Some other examples which are recycled include textiles, plastics, organics, and metals. Metals such as drinking bottles and food cans which are made from steel and aluminium can be recycled.