What group of organisms is found at the base of every energy
pyramid?

Answer:

Plants or other photosynthetic organisms (autotrophs) are found on the first trophic level, at the bottom of the pyramid. The next level will be the herbivores, and then the carnivores that eat the herbivores. The energy pyramid (Figure below) shows four levels of a food chain, from producers to carnivores.

Explanation:

I hope I hope

A 3-column table with 2 rows titled Table 2 Diffusion Tests. Column 1 has entries Color of Solution in Dialysis Tube, Color of Solution in Beaker. Column 2 is labeled Step 4: Test for Diffusion Starch with entries Clear initial color and Black after 15 minutes, Yellow initial color and Yellow after 15 minutes. Column 3 is labeled step 7: Test for Diffusion of Glucose with entries Not observed, Light Blue initial color and Red after 15 minutes.
Analysis:
diffused though the semipermeable membrane.

Question 2 Multiple Choice Worth 4 points)
[0.04H] Which of these statements is correct about tidal energy and ocean thermal energy?
A - Tidal energy may increase the fish population.
B - Tidal energy may increase the bird population.
C - Ocean thermal energy may alter the wave heights.
D - Ocean thermal energy may alter the ocean ecosystem.

QUICK ASAP PLS Certain bacteria live and grow on the roots of some plants and produce chemicals that are beneficial to the plants. Which of the following observations best supports the claim that this relationship is beneficial to the plants?



Group of answer choices

Plants with a higher amount of the bacteria on their roots have increased rates of survival and reproduction.

When the bacteria are removed from the plant roots and are grown in a laboratory setting, they fail to survive.

The population size of the bacteria varies greatly depending on the chemistry of the soil and the type of the plant.

The chemical produced by the bacteria can be created by humans and added to the soil where it reaches the roots of the plant.

Which graph represents selection that may lead to reduced variation in a population? A graph has trait value on the horizontal axis and population of individuals on the vertical axis. The original population and population after selection have similar curves, but the original population peaks before the population after selection. A graph has trait value on the horizontal axis and population of individuals on the vertical axis. The population after selection increases, decreases, increases, and then decreases again. The original population increases at the point that the original population drops. A graph has trait value on the horizontal axis and population of individuals on the vertical axis. The original population peaks at the same time as the population after selection but the population after selection peaks higher and at a more rapid speed. A graph has trait value on the horizontal axis and proportion of individuals on the vertical axis. The original population and population after selection have similar curves but the original population is slightly higher at all points. Mark this and return

A mutation in which cell would only affect the organism and not future generations

A. Sperm cell and lung cell
B. Sperm cell and egg cell
C. Nerve cell and brain cell
D. Egg cell and liver cell