<span>C. metric ruler since millimeters are metric</span>
Fatty substances such as cholestrol and saturated fats may be deposited on the inner surface of the coronary arteries. This narrows the lumen of these arteries and increases blood pressure. Such an affected artery develops a rough inner surface. This increases the risk of a blood clot being trapped in the artery. A blood clot that forms in an artery is called a thrombosis. Blood supply to the heart muscles can be greatly reduced due to the blockage of the coronary arteries. This can cause a heart attack. Hope this helps!
If a fox and an eagle eat some of the same organisms in an ecosystem, the relationship between the fox and the eagle could be classified as competition. Competition both within and between species is an important topic in ecology, especially community ecology. It is one of many interacting biotic and abiotic factors that affect community structure. It is a major affecting the availability of resources in an ecosystem is the density of individuals, or the number of organisms living in a certain area.
Answer:
DNA helicase separates the two strands of DNA at a replication fork.
Explanation:
To allow DNA replication, two DNA strands should be separated to serve as a template strand. DNA helicases are the enzymes that separate the two parental DNA strands in an energy-dependent way. DNA helicases move along the DNA and separate the two strands by breaking the hydrogen bonds between the complementary base pairs of two DNA strands. The energy released from ATP hydrolysis is used to break the hydrogen bonds.
