Hi there!
Explanation: Pathogen is an agent that can cause infection and disease.
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Chronic obstructive pulmonarydisease is a respiratory disease caused by nicotine and tobacco use. The correct option is d.
Chronic obstructive pulmonarydisease is actually a lung disease that causes obstructed airflow from the lungs. Breathing difficulties, coughing, mucus production, and wheezing are all symptoms.
Smoking is the leading cause of COPD, accounting for approximately 9 out of every 10cases. Smoke contains harmful chemicals that can harm the lining of the lungs and airways.
Thus, the correct option is d.
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Answer: copd
Explanation: edge 2020
B. Old Stone Age
C. Bronze Age
D. Ice Age
Answer:
It's D, The Ice Age
Explanation:
I just done it on Edge 2020
The concrete operational stage of Piaget's cognitive development theory, occurring from 7 to 11 years old, is when children begin to comprehend the concept of conservation and see the world in simplistic, black and white terms.
The correct answer to this question is B) Concrete operational stage. This stage, according to Piaget's theory of cognitive development, occurs from about 7 to 11 years of age. In this stage, children begin to think logically about real (concrete) events. However, they typically see the world in simplistic, black-and-white terms. Also, they developed an understanding of conservation, the idea that changing the appearance of something does not change its size or volume if nothing is added or removed, albeit they cannot predict outcomes based on this understanding yet.
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Answer:
If you are indoors you should stand under a doorway or if in a classroom you should hid under your desk.
Explanation:
This is because if you are under a doorway nothing can fall on you and the same explanation goes with hiding under the desk.
cavity, posterior to the sternum and
slightly superior to the heart?
Answer: Thymus
Explanation: anterior means in the front part of the body, posterior means towards the back of the body, and superior means above. If you look at a chart of all the glands in the endocrine system, you’ll see the thymus and the thyroid. The thyroid is in the next and the thymus is below that, slightly higher than the heart. Therefore that is your answer.