Answer:
The ecosystem that consists of a producer and consumer is a decomposer
Explanation:
- The ecosystem comprises a number of producers, ad decomposers. The producers belong to the bottom of the food chain and they are divided into primary and secondary such as plants and herbivorous animals like grass and deer.
- The secondary environment consists of consumers that are also divided into primary and secondary that is wolves and Man.
- The decomposers are the last in the food chain that acts of dead and decaying reasons and converts the nutrient energy into the soil that is take up again by plants.
Average x = (5-1)/2 = 2
<span>average y = (-2+3)/2 = 1/2
</span>so
<span>(2 , 1/2)</span><span>
</span>
Fossils help scientists date rocks: True
Sometimes younger rock layers are found beneath older rock layers: True, because it happens with landslides and other causes.
No fossils from the Precambrian era have been found because there were no organisms at the time: False because there were organisims like algae and bacteria, and there are a very small amout of fossils from that era.
The map of Earth has changed over millions of years, but is now set: False
