Answer:
mineral -
This is any element or inorganic compound. It is a naturally occuring solid chemical compound found in pure form. It is commonly found within rocks.
metal -
an element known for is lustrous, opaque, and malleable properties. Metals are good conductor of heat and electricity.
ore -
This is a natural rock from which minerals, elements or metals can be extracted through mining.
alloy -
An alloy is a group of metals or metals that have one or more other elements. Take for example, red gold is a combination of gold and copper while white gold is a combination of silver and gold.
Answer:
The Knee Flexor Muscles
Explanation: The Hamstrings All three hamstring muscles originate from the ischial tuberosity and run toward the knee. The biceps femoris muscle is inserted into the head of the fibula. It can rotate the lower leg so that the foot points laterally.
Answer:
Explanation:
Crossing over in which alleles are exchanged
Answer:
False
Explanation:
The papillary muscles of both right and left ventricles began to contract shortly before the other ventricular muscles (systole) so that they can take up the slack on the chordae tendineae as the full force of ventricular contractions sends blood against the atrioventricular (AV) valve flaps.
They prevent the backward flow of blood to atria from ventricles. So if they contract after the ventricle systole they would not be able to perform their job.
