Answer:
Explanation:
The cardiac conduction system are specialized cardiac muscle cell that are located in the walls of the heart and sends signals to the heart muscle. These signals cause the heart to contract. The main components of this system are AV node, bundle of His, SA node, bundle branches, and the Purkinje fibers.
The answer would be C physical weathering because heat and the breaking of the rock can be the result of physical weathering, and the other answers would not make sense.
Biological weathering would be the breaking down of the object due to a form of life (incorrect answer),
erosion is the carrying away of something (incorrect answer),
and chemical weathering would be changing the identity of the substance(incorrect answer).
Answer:
c
Explanation:
this letter no change the only that changes is the letter T in RnA A goes with u That's is the only letter
Answer and Explanation:
Organism
↓
Population
↓
Biological community
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Ecosystem
Ecosystem is a natural self-sustaining ecological unit in which the different types of habitats and their flora and fauna interact and influence one another. e.g., forest, grassland,lake
Biological community includes all the species-flora and fauna- that exist and interact in a habitat. For instance, the community in a montane forest includes all the animal species of mammals, reptiles, birds
Population is the total number of individuals of a particular species found in a habitat at a particular time.
Organism is any living thing in an ecosystem that has an organized structure, can respond to stimuli, reproduce, grow and develop.
