· Abiotic factors are nonliving, such as temperature, sunlight, and soil in an ecosystem.
· Biotic factors are the living parts of an ecosystem, such as plants and animals.
Given the above, the biotic factor listed is evergreen trees in a coniferous forest.
The other options - soil, precipitation, and temperature - are abiotic.
Answer:
<span>C. evergreen trees present in a coniferous forest
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Answer: Ethidium bromide is the most commonly used dye for DNA and RNA detection in gels. Ethidium bromide is a DNA intercalator, inserting itself between the base pairs in the double helix. Ethidium bromide has UV absorbance maxima at 300 and 360 nm, and an emission maximum at 590 nm.
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B. Facilitated diffusion.
Facilities diffusion is a type of passive transport that invokes a protein. molecules move from an area of high concentration to low concentration as seen in the picture with the help of a protein.
Answer:
C) relative dating gives age compared to other nearby objects while absolute dating always gives a numerical age.
Explanation:
The main difference between absolute and relative dating is that the absolute dating is a technique to determine the numerical age of a rock or a fossil whereas the relative dating is a technique that determines the relative age
Multiple choices;
a.Twelve water (H2O) molecules were used to make it.
b.Twelve hydrogen (H2) molecules were used to make it.
c.Six oxygen (O2) molecules were used to make it.
d. Six carbon dioxide (CO2) molecules were used to make it.
Answer;
A.Twelve water (H2O) molecules were used to make it.
Explanation;
-The reactants that are required for the process of photosynthesis to take place are; carbon dioxide, water and light energy from the sun.
-The photosynthetic process utilizes 12 water molecules, six carbon dioxide molecules and light energy to produce one glucose molecule, six water molecules and six oxygen molecules.
This can be represented by the following chemical equation:
12H20 + 6CO2 + light energy = C6H12O6 + 6H2O + 6O2
