All food chains and webs have at least two or three trophic levels<span>. Generally, there are a maximum of </span>four tropic levels<span>. Many consumers feed at more than </span>one tropic level<span>. Humans, for example, are primary consumers when they eat plants such as vegetables.</span>
The answer to the first question is B
Answer:
1.33 m/s
Explanation:
The formula for Kinetic Energy is given as:

Where, m is the mass and v is the velocity of the object. In order to tell how fast is the object moving we need to calculate its velocity.
Re-arranging the above equation and isolating v, we get

Putting values in this equation, we get:

Thus, the object is moving with a velocity of 1.33 m/s
Answer:
c latititude
Explanation:
Latitude or distance from the equator – Temperatures drop the further an area is from the equator due to the curvature of the earth. In areas closer to the poles, sunlight has a larger area of atmosphere to pass through and the sun is at a lower angle in the sky.
Answer:
The debate over the use of GM foods started ever since the production of the first GM foods. Supporters of the GM foods tell that the GM foods have been thoroughly tested and approved by the FDA and in the long term they will be the best strategy to overcome malnutrition as the population is rising rapidly. Critics of the GM foods explain the threat that these foods can lead to the natural varieties to become extinct, As a result, there would be no variations among crops which could be a concerning and threatening situation. Also, they are concerned that it might happen that over the long term GM foods might be harmful.
Genetic medicines although properly tested may show differential results when used on people or may give rise to certain other conditions which the humans are unfamiliar for now.