41. This picture shows an enenty pyramid What is an nenu pyramid
42. What are trophic levels?
43. How many trophic levels are seen in this enery pyramid?
44. Based on what you have learned about food chains, what terms can be used to describe each of the
following organisms from the picture?
a) Plants
b) Crickets:
c) Birds
d) Snakes:
e) Owl
45. How much energy from one trophic level is available to be passed up to the next level?
46. Suppose that the plants at the base of this enerzy pyramid contain 450,000 Calories of food
energy. If the crickets eat all the plants, how much energy would be available to the crickets as
first level consumers?
How many Calories are available to the birds?
How many Calories are available to the snakes?
How many Calories are available to the owl?
47. What happens to the number of organisms at each level of the pyramid starting from the base?
Explain why this happens.

i think it is d. e because the next one is igneous.

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.