Question

Fill in the blanks
A) Plants are called _____ because they fix carbon dioxide.
B) In an ecosystem dominated by trees, the pyramid (of numbers) is a ___ type.
C) In aquatic ecosystems, the limiting factor for productivity is ____
D) Common detritivores in our ecosystem are____
E) The major reservoir of carbon on earth is _____

Answer 1

“A community of living and nonliving species that interact with one another is defined as an ecosystem.”
Ecosystems are the structural and functional units of ecology in which living species interact with one another and with their surroundings. An ecosystem, in other terms, is a series of interactions between species and their surroundings.

Complete answer:
Part A: Autotrophs
Plants are called autotrophs because they fix carbon dioxide and produce their own food.
Part B: inverted
In an ecosystem dominated by trees, the pyramid (of numbers) is inverted. Because it produces more biomass than trees, it supports a larger number of birds and insects.
Part C: light
In aquatic ecosystems, the limiting factor for productivity is light. Plants and algae are unable to grow without light.
Part D: Earthworms
Common detritivores in our ecosystem are earthworms. They receive their nourishment from organic debris that has decomposed.
Part E: oceans
The major reservoir of carbon on earth is oceans.

Note:
“Autotrophic nutrition is a process in which an organism makes its own food in the presence of sunshine from simple inorganic materials such as water, mineral salts, and carbon dioxide.”
"Autotrophic" is a combination of two words: "auto," which means "self," and "trophic," which means "feeding." This word is literally defined as "self-nutrition."
Chlorophyll is a green pigment present in autotrophic organisms that helps them capture solar energy. Autotrophic nourishment is found in all green plants. They prepare their own food using photosynthesis, which involves the use of solar energy, water, and carbon dioxide. Glucose is formed as a result of this process.