It is the Mid-Atlantic Ridge.
Answer:
Pentose sugar
Explanation:
phosphate and pentose sugar are the backbone of a dna strand
Answer:
Mechanical barriers — which include the skin , mucous membranes , and fluids such as tears and urine — physically block pathogens from entering the body. Chemical barriers — such as enzymes in sweat , saliva , and semen — kill pathogens on body surfaces.
Answer: Here are all the ways mindfulness can help you manage stress: Nine Ways Mindfulness Helps with Stress. You become more aware of your thoughts. You can then step back from them and not take them so literally. That way, your stress response is not initiated in the first place. You don’t immediately react to a situation. Instead, you have a moment to pause and then use your “wise mind” to come up with the best solution.
Explanation:
B and C are correct - A is incorrect as natural selection affects any generation of species. D is also incorrect as any species population change in an ecosystem inevitably affects another, even if it isn't a predator-prey relationship.