Answer:
Explanation:
A community structure is define by the diverse organism present and the various number of species.
A community requires both biotic and abiotic factor to form a good structure.
Base population is needed - this are the primary producer, that transfer energy to other organism in the environment. The produce their food themselves.
Consumers - consumers feeds on producers, herbivores animals feeds on producer/plant while carnivores feeds on herbivores. Energy is then transfer when they chemical reaction takes place via the food comes
Decomposer - They act on the dead and remains of plant and animal. They help release nutrient back into the soil. Example of decomposer is earth worm.
Answer:
All food chains start with energy the sun, it is captured by plants. food chain always starts with plant life and ends with an animal. Plants are called producers because they are able to use light energy from the sun to produce food (sugar) from carbon dioxide and water.
The answer is <span>A. Decrease in genetic variation
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A founder effect is a result of a geographical separation of a few individuals from the original population. Those few founding individuals will form a new population so they are founders. In this new population, there will be present alleles of the few founding individuals. However, those few founding individuals do not represent a whole genetic variation of the old population, but only some part of it.
Imagine a population of fish in which there are yellow, green, blue, and red colored fish. In the population, there is a genetic variation. But, if a few green-colored and red-colored fish geographically separate from the population and form a new population, in the new population there will be decreased genetic variation (because there are only green and red fish compared to the old population where are fish in 4 different colors).</span>
Mainly by nitrogen-fixing bacteria in the soil and oceans
Answer: three types of neuron are ;sensory,interneuron and motor neurons
Explanation:
The three types of neurons are
Motor neurons
Interneurons
Sensory neurons
Sensory neurons- it receives impulses and carry them from the sense organs to the spinal cord or brain
Interneurons-it connects sensory
Motor neurons-it interprets the impulse only in the brain and spinal cord