Friction because it is the answer that I know because I am smart
June 21st represents the sun in the sky at noon for the northern hemisphere.
Explanation:
The summer is hotter because the sun's part is higher in the sky. This reason makes the days longer and makes summer sun more intense.
The summer solstice for northern hemisphere occurs in june 21. On this day the sun's position at noon is higher in altitude of the year.
In the summer season , The north pole is tilted towards the sun and this causes the sun's part to be higher in the sky causing the northern hemisphere to receive more light and heat.
Natural selection. They disagree on the rate, inheritance, and whatever c is talking about.
Answer:
<u>Barbara must be suffering from tension headache.</u>
Explanation:
<u>Tension headaches </u>are caused due to stress, here in this case Barbara is stressed because of excess workload and low productivity. Tension headaches are a type of primary headaches and its intensity increases gradually. the pain can travel from head to neck.
(Primary headaches: These headaches are not caused as a result of any other medical problem.)
Answer:
They are able to take up and store more oxygen in their muscles
Explanation:
According to Oxford dictionary, myoglobin is ''a red protein containing haem, which carries and stores oxygen in muscle cells. It is structurally similar to a subunit of haemoglobin.''
The fact that Tibetans have a high level of myoglobin implies that they are able to take up and store more oxygen in their muscles since myoglobin is involved in storage of oxygen in muscle cells. Hence elevated levels of myoglobins enables the muscle cells to work more effectively.
