AP BIOLOGY

ECOLOGY

ENERGY FLOW AND PRIMARY PRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Plants, animals, and decomposers (which consume dead things) are in a forest ecosystem. Scientists are studying photosynthesis in the forest. Which group or groups of organisms should they study?
A
all organisms in the forest
B
animals and decomposers
C
plants and decomposers
D
plants
Explanation: 

Detailed explanation-1: -But animals, decomposers and other organisms are not capable of doing this because they do not have chlorophyll. Decomposers help in breaking down substances and release carbon dioxide which is then used by plants during this process.

Detailed explanation-2: -Decomposers are like the housekeepers of an ecosystem. Without them, dead plants and animals would keep accumulating the nutrients the soil needs inside them. Decomposers clean up the dead material by processing it and returning the nutrients to the soil for the producers.

Detailed explanation-3: -Fungi that get their nutrients from breaking down decaying organic material are called saprotrophs. Saprotrophs act as decomposers in the forest. They play a big role in breaking down wood and other debris to recycle nutrients back into the soil.

Detailed explanation-4: -There are two main types of organisms that use cellular respiration: autotrophs and heterotrophs. Autotrophs are organisms that can make their own food. The types of organisms that are autotrophs include plants as well as some bacteria and protists (such as algae).

Detailed explanation-5: -Decomposers in ecosystems act as environmental cleaners by decaying dead plants and animals. They aid in the recycling of nutrients. They make room for a new life in the biosphere by decaying the dead.

There is 1 question to complete.