Evolution can be defined as the process of changes in the genetic pool of a population over time. The process of natural selection operates the evolution of any population. Evolution acts upon a whole population instead upon on single individual. A single individual doesn't evolve, instead ratios of the genetic types within a population changes when it is evolving, and eventually, complete evolution occurs.
Hence, the given answer is 'true'.
Answer:
The osprey card and its description should be placed in the heterotrophs group.
Explanation:
Organisms that can synthesize inorganic substances, such as light, and turn it into food according to their own needs are <u>producers</u>, and they are called a<u>utotrophic organisms</u>. These organisms are by excellence all <u>plants</u>, that <u>photosynthesize</u>. Organisms that are incapable of producing their food are called <u>heterotrophic organisms</u>. They <em>depend on other organisms</em> from the trophic chain such as plants or other animals to feed on, so they can get proteins and energy.
In the trophic chain, heterotrophic organisms occupy the <u>first, second or third consumer level</u>, after producers.
There are different types of heterotrophic animals: carnivorous, herbivorous, omnivorous, hematophagous, ichthyophagous, and etcetera. All of them depend on autotrophic organisms.
Answer: The correct answer is D) Some energy in each trophic level is used for life processes.
Food chain represents the flow of energy through various living organisms (which lie at different trophic levels) in an ecosystem. The energy flows from one trophic level to the next and it is decreased with subsequent trophic levels.
As per the law of 10% energy transfer, only 10 % of the energy is transferred from one level to the next as the rest of the energy at every trophic level is utilized in various metabolic processes like respiration, digestion, excretion and also liberated as heat in the surrounding.
Due to this, the energy available at any trophic level is less than the previous trophic level.
B. the complex interactions
and feeding relationships
between organisms within
an ecosystem
Answer:
Plants
Explanation:
Abiotic factors are things in an ecosystem or environment that are not alive.
Temperature, water and rocks are all not living, so they are abiotic factors.
Biotic factors are living things, like animals.
Plants are alive, so they are biotic factors.
Plants are not abiotic, so the correct answer is plants.
