Part A:
A - cell/plasma membrane.
B - Nucleus
C - mitochondrion
Part B:
A - (cell membrane) regulates what enters and leaves the cell.
B - (nucleus) controls cell activities or contains the genetic codes.
C - (mitochondrion) respiration or energy release or production of ATP.
Part C:
Photosynthesis
Production of cellulose
Produces chlorophyll
Producing its own food
Hope this helps you! (:
-PsychoChicken4040
Answer: the three types of freshwater are swamp,bog and marshes
Explanation: similarities between them
They are all covered with shallow layers of water during some or all of the year.surface water comes from streams,rivers,lakes,ponds and oceans and the Earth's surface.
Difference between them
Bogs are found in cooler northern areas,tends to be acidic and contain many mosses
Swamps are many trees and shrubs and are found in the warm and humid southern United State
Marshes are usually grassy
False. Temperate rainforests are not found near the equator
Answer:
C. 3, 2, 1
Explanation:
During a single PCR cycle, the very first step is the heat separation of the double stranded DNA. Primer binds only single stranded DNA/RNA because it has complimentary bases which match single strand of DNA/RNA that is why it is necessary to unwind both the strands of DNA by providing temperature.
As soon as the DNA strands have separated by increasing the temperature to ~ 95 °C, in the next step the primer binds the portion of DNA which is complimentary to the bases of the primer. In order for primer to bind DNA, the temperature is lowered to ~ 72 °C and the process is called as annealing.
Once primer has bound to the DNA, the next step is polymerization i.e. nucleotides which are the monomer units of DNA are added one by one with the help of enzyme named as Taq polymerase. This is how the strand extends ahead of primer and exact copies of the given DNA are produced.
Note: PCR may be considered as in vitro DNA synthesis or replication.
