Answer:
Positive and negative feedback differs in that positive feedback loops increase the initial signal, while negative feedback loops decrease the original signal (option d).
Explanation:
Feedback is a process that, applied to biological systems, allows for the changes needed to maintain homeostasis.
- Negative feedback loop occurs when a stimulus is presented, producing a change in the body, so the response is to stop the change that is occurring. It is the most frequent type of feedback and has the greatest impact on homeostasis. An example of negative feedback is a decrease in body temperature through sweating.
- Positive feedback loop occurs when the stimulus produces a change and promotes a response that reinforces that change. The classic example of positive feedback is the secretion of oxytocin, promoted by uterine contractions, whose effect is to increase those contractions, allowing labor.
<em>In summary, </em><u><em>positive feedback loop acts by increasing an action or signal in the body, while the negative feedback loop reduces or stops the action or signal that occurs</em></u><em>.</em>
Answer:
i believe it would be the last one "screens remove solid debris, grits and sand"
Explanation:
I would try to eat more healthily because eating certain foods are a huge magnet to toxic waste and gas. This creates more pollutions and destroys the o-zone. Another thing it to take my bike instead of car or use a hybrid or an electric car if it is to far ( my destination) for a bike. Cooking food in my house with an oven is MUCH better for the clean air as well for the coal and charcoal used for grill, and wood for fires, causes a massive pinpointed area of smoke and destroy the air causing bug leaks of hydrogen in the air molecules.
Answer:
Endoplasmic reticulum: Sac filled with digestive chemicals
Ribosomes: Small structure that synthesizes proteins
Golgi body ( Golgi apparatus): Stack of membranes that packages chemicals
Lysosome: Structure that manufactures ribosomes
Mitochondria: Structures that converts nutrients to energy
Cell membrane: Membrane that surrounds and protects the cell.
Explanation:
I'm learning this too in school so I know this is right!
The answer, though i'm not quite sure' should be sulphate aerosols, though i think that is actually what the clouds are made out of. So the answer might be instead just stratospheric ash clouds
