The stage that scientists begin to ask questions and attempt to explain observations is A. forming hypotheses. This is because a hypothesis is basically a testable question about observations scientists make.
1. For every action there is an equal and opposite reaction
2. Force = mass times acceleration
3. An object at rest tends to stay at rest and an object in motion tends to stay in motion unless acted on by another force.
3. One example is a rock rolling down a hill. You could use a stick or your foot to stop it, but otherwise it would keep rolling
2. An example for law No.2 is pushing a shopping cart. If you push an empty shopping cart, it will go faster than a full shopping cart because the full shopping cart has more mass.
1. One example is a cup on a table. The cup exerts a force down on the table due to gravity, the table exerts an equal and opposite force on the cup to stop it falling through the table
Answer
The key markers for the identification of bacteria are special RNA polymerase, peptidoglycan in cell walls. ester-linked fatty acids.
Explanation:
Answer:
Generally, the main function of both microphylls and megaphylls is to undergo photosynthesis. In comparison, the main structural feature of megaphylls is the presence of multiple veins. Also, they contain leaf gaps.......
Answer:
A. Helicases
B. Single strand binding proteins
C. Single strand binding protein
D. Topoisomerases
Explanation:
The helicases bind on the replication fork aiding in the unwounding of the DNA helix to allow for replication. The single strange binding proteins attach/bind to the separated single stranded DNA after the replication fork to prevent re-annealing of the single stranded DNA preventing Hydrogen bond formation that reanneals these two strands together. The topoisomerases are found just ahead of the replication fork preventing overwounding/ positive supercoils of the DNA. They do this by introducing breaks into the phosphate backbone of the DNA allowing them rotate forming negative supercoils and attaching the breaks once the DNA strand is relaxed.
