Answer:
A
Explanation:
When a wire is connected to battery terminals, electrons flow from negative to positive. Unlike (opposite) charges attract, like (same) charges repel.
Answer:
1. Myocarditis
2. Pericarditis
3. Endocarditis
4. Heart attack/myocardial infarction
5. Vasodilation
6. Thrombophlebitis
7. Varicose veins
Answer:
It can significantly alter the homeostasis of the ecosystem
Explanation:
The trophic level is the position that occupies a given organism/ population/species in the food web. In a food web, the trophic levels are organized into a first category (formed by primary producers, e.g., plants), a second level (primary consumers, e.g., herbivores), and subsequent categories (predators, e.g., carnivores). The abrupt change in the number of organisms belonging to the same trophic level generally has a negative effect on the ecosystem by modifying the trophic structure of communities. For example, decreasing the number of producers will produce a decrease in the number of primary consumers, thereby altering the homeostasis (equilibrium) of the entire ecosystem. On some occasions, it may eventually lead to the extinction of populations and species.
In times of stress the sympathetic nervous system stimulates the adrenal medulla which then secretes catecholamines. The catecholamines includes; Dopamine, epinephrine and norepinephrine. Catecholamines are made by nerve tissue, the brain, and the adrenal glands. They help the body respond to stress or fright and prepare the body for "fight or flight" reactions.
Answer:
The more mass a body has, more force needs to be applied for it to accelerate.
Explanation:
The relation of acceleration of a body to its mass and applied force is discussed in Newton's second law of motion.
Newton's second law of motion states that the more mass a body has, more force needs to be applied for it to accelerate.
