Answer: magnesium atom
Explanation:
magnesium atom
The chlorophyll molecule consists of a central magnesium atom surrounded by a nitrogen-containing structure called a porphyrin ring; attached to the ring is a long carbon–hydrogen side chain, known as a phytol chain.
Answer:
genetics;the study of heredity and the variation of inherited characteristics.
evolution;evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection
variation;a change or difference in condition, amount, or level, typically with certain limits
Explanation:
Can you please define you question?
In total approximately 70% of incoming radiation is absorbed by the atmosphere and the Earth's surface while around 30% is reflected back to space and does not heat the surface
Answer: False
Explanation:
The patellar tendon attaches the bottom of the kneecap (patella) to the top of the shinbone (tibia). It is actually a ligament that connects to two different bones, the patella and the tibia.The patella is attached to the quadriceps muscles by the quadriceps tendon.The medial and lateral vasti muscles also attach independently to patella to form aponeuroses, the medial and lateral patellar ligament. Working together, the quadriceps muscles, quadriceps tendon and patellar tendon straighten the knee. When the patellor tendon is ruptured, the ability to extend the knee is greatly effected and decreased but its not completely disappears. Thus the quadriceps functions is not entirely compromised.
