IF ANSWER I WILL GIVE BRAINLESS Question 9 (4 points)
If the 2nd Level consumers had 10 joules of energy in this food chain, how much energy was at the producer level?

Question 10 (4 points)
Why doesn't the total amount of energy from the producers make it to the owl? What evidence supports your answer?

Answer 9 - 100 joules energy was at the producer level

Answer 10 - Remaining energy is used in metabolism

Explanation:

Answer 9

The energy at each trophic level is only 10% of the energy at its previous trophic level.

The energy at producer level is X

% of Joules

Joules

Answer 10

Because the remaining 90% energy is utilized by the producer for its metabolism

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

i just learnt this recently but i need to look through my notes again