Answer:
When fresh water reaches lakes and shores , it becomes dirty and less diverse in living organism.
Explanation:
Fresh water originating from a given source is usually cooler at upstream side. Also it has high oxygen content and fresh water fauna such as fishes. In the middle of its course, its width and species diversity increases. With further progression, sediments and dust adds to the water thereby reducing its clarity and hence the penetration of sunlight. By the time this water reaches streams and ponds, it is full of mud, sand, and other sediments.
Answer:
B. Do not need much water, so they prefer soil that drains the water.
Explanation:
Sandy soil is one of the three basic soil types we have in nature (the others being loamy soil and clayey soil). One of the properties of the Sandy soil is its high water draining ability i.e. it has a low water holding capacity. This draining characteristics is due to the large pores that Sandy soils possess.
According to this question, three plants namely: yarrow, bearded iris, and sea oats grow best in sandy soil. This indirectly means that these plants mentioned do not need much water for their growth since they grow best in a soil that drains water efficiently.
Answer: Nucleotides are the monomers used for DNA synthesis. The mix also contains a template, DNA taq polymerase, buffer, reverse and foward primer and magnesium ions.
Explanation:
A PCR master mix is a premixed solution that has all of the components for a Polymerase chain reaction (PCR). This reaction is a laboratory technique that amplifies small fragments of DNA into millions of copies.
The master mix used for that contains dNTPs (nucleotides). In the DNA there are four types of nucleotides that are differentiated by the nitrogen base they have: adenine (A), guanine (G), cytosine (C) and thymine (T).
<u>Since nucleotides are the monomers that make DNA, they are found in the mix because they are the material for DNA synthesis.</u>
The reaction mixture also requires;
- DNA template, the sequence of DNA to be amplified
- DNA taq polymerase, a heat resistant enzyme that assembles nucleotides into a new DNA
- Salt buffer, for an optimum ionic environment and pH
- Oligonucleotide primers (reverse and foward), pieces of DNA complementary to the template. Each hybridizes with one of the DNA chains.
- Magnesium ions, a catalyst required by DNA polymerase to work
Answer:
sperm cell contains the x or y
Explanation:
please give brainliest
I'd say it should be D. Peat. Hope this helps! =^-^=
