It impacts aquatic ecosystems and can damage the habitats of aquatic animals by blocking off their food sources with dams and the dams can interfere with mating patterns, hydroelectricity also can damage the flora and fauna by floods drowning and killing various animals and plant life and it can lead to the emissions of greenhouse gasses causing air pollution. I hope this helps.
Answer:
b
Explanation:
the summer solstice is in June and it lasts until September, therefore while it's summer in the Northern hemisphere, its winter in the Southern.
The ileum contains villi that project into the lumen and increase the amount of surface area.
Villi are small finger-like structures that project into the lumen of the small intestine. Villi increase the surface area of the intestinal walls for easy and quick absorption of digested food with the addition of digestive secretions. Villi vary in length from about 0.5 to 1 mm. They are usually found in large numbers at the beginning of the small intestine and they reduce toward the end of the tract.
Answer:
Cartilage rings of trachea have protective role
Explanation:
Trachea is a tube, part of the respiratory system, which allows the passage of the air: from larynx to lungs (primary bronchi). It is enveloped with cartilage rings that prevent collapse of the trachea when there is no air. The cartilage "rings" are C-shaped, except one full ring-shaped - the cricoid cartilage which attaches trachea to the larynx.
