Answer:
c . milk
Explanation:
Colloid are those whose particles are larger than the size of molecule.The size of particle is one nano meter.Collide particle range is between 1 to 1,000 nano meter. Every collide particle is consist of two parts colloidal particle and dispersion medium.
Milk is one of them.Collide are made form solid liquid and gas.
milk is the example of liquid collide.
Answer:
a role of a organism in a ecosystem
Explanation:
i hope this helps
Answer:
D
Explanation:
because trees take in carbon dioxide and produce oxygen.
<h2>
<em>True</em></h2>
<em>Explanation:</em>
<em>Some species of fungi do grow better at warm temperatures (70-90°F), but there are some that thrive in very high temperatures of 130-150°F and some that will thrive in very low temperatures below 32°F (below freezing). ... Water: Fungi need lots of water to grow. For most fungi this is true. :)</em>
<h2>Given statement is false</h2>
Explanation:
According to dispersive model of DNA replication,DNA molecules are hybrids of parental and daughter DNA;In this model each individual strand is a combination of original and new DNA
Meselson and Stahl did an experiment on DNA replication using E.coli bacteria
- E.coli was grown in a medium containing heavy isotope of nitrogen,bacteria took up the nitrogen and used to synthesize new biological molecules,including DNA
- It was grown for many generations,the nitrogenous bases of the bacteria's DNA were all labelled with heavy nitrogen
- Bacteria were then switched to light nitrogen isotope and allowed to grow for several generations
- They then measured the density of the DNA using density gradient centrifugation
- This method separates molecules such as DNA into bands by spinning them at high speeds in the presence of another molecule, such as cesium chloride
- Each DNA produced two DNA molecules each with one new strand and one old strand called semi conservative replication(half of the parental DNA conserved in daughter DNA)
- Each DNA strand act as a template for synthesis of new strand
- Hence,dispersive model of DNA was eliminated and semi-conservative model of DNA replication was proved by the above experiment