Which term is used to discribe clouds of middle height

Aperson travels 35 km in 0.4hrs, followed by 53 km in 0.6 hr. what is the average speed

You and a group of friends are spending your vacation hiking through the mountains. it is cold in the mountains. you will be expending a lot of energy while hiking and you will need plenty of energy to keep you warm. you should pack foods high in to provide the most energy or kilocalories per gram of food. a) carbohydrates b) lipids (fats) c) proteins d) sugars

Explain how negative feedback caused the changes in plasma glucagon concentration observed during the experiment.