Explanation:
The initiation of DNA replication occurs in two steps. First, a so-called initiator protein unwinds a short stretch of the DNA double helix. Then, a protein known as helicase attaches to and breaks apart the hydrogen bonds between the bases on the DNA strands, thereby pulling apart the two strands.
Answer:
C
Explanation:
I hoped it help u out. Ur welcome :)
Answer:
Adding a catalyst
Explanation:
We know this because :
→ We can see the other options contain 'removing' and' decreasing' and when those words are mentioned, it wouldn't increase the rate of a reaction
→ A catalyst speeds a reaction without being used itself
Answer:
Hi, you probably already submitted but I believe it will be A: All living things use energy to carry out essential life functions.
B. Not all living things have brains. For example, plants are living and they don't have brains. Neither do unicellular organisms.
C. Not all living things have stomachs. Plants eat, but not with a stomach. They absorb nutrients.
D. Phagocytosis is ingestion. Not all living things undergo it. Again, going back to the plants example, they do not, so therefore it isn't all living things.
Answer:
Cancer is caused by accumulated damage to genes. Such changes may be due to chance or to exposure to a cancer causing substance. The substances that cause cancer are called carcinogens. A carcinogen may be a chemical substance, such as certain molecules in tobacco smoke.
Explanation: