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mart [117]
3 years ago
9

Select all that apply.

Biology
2 answers:
MissTica3 years ago
7 0

Answer:

Genetic variation occurs.

Mutations are not copied over and over again.

Explanation:

Meiosis is a type of cell division that adds genetic variations in the progeny through the process of crossing over. These genetic variations impart a survival advantage to the population and prevent species extinction under unfavorable conditions. Since crossing over during meiosis produces new gene combinations, meiosis does not always allow transmission of mutation to the progeny. In this way, it helps to get rid of harmful mutations.  

Anestetic [448]3 years ago
5 0
Genetic variation occurs.
Mutations are not copied over and over again.
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In photosynthesis, carbon dioxide is reduced and h2o is oxidized. What type of chemical reaction is this?.
Vilka [71]

In photosynthesis, carbon dioxide is reduced and H₂O is oxidized. The type of chemical reaction is an oxidation-reduction reaction.

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Explanation

Oxidation-reduction reaction are reactions that take place in electrochemical processes. Reduction is the reaction of decreasing oxidation number and increasing electrons and it can be said that reduction is the reaction of a substance losing oxygen. Oxidation is the reaction of increasing the oxidation number and decreasing electrons and can be said that oxidation is a reaction where the reaction of a substance binds oxygen.

Photosynthesis is one type of oxidation-reduction reaction that occurs naturally in everyday life. Photosynthesis has a complex process and involves green plants and certain bacteria. In the event of photosynthesis, carbon dioxide is reduced to carbohydrates and water is oxidized to oxygen.

The oxidation-reduction reaction in photosynthesis is:

6CO₂(g) + 6H₂O(l) + energy --> C₆H₁₂O₆(aq) + 6O₂(g)

Learn more about oxidation-reduction reaction on

  • brainly.com/question/13559667
  • brainly.com/question/16867778

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6 0
1 year ago
The ________ plate count (SPC) method involves diluting 1.0m of bacterial culture into a series of water blanks, and then taking
Anna11 [10]

The standard plate count (SPC) method involves diluting 1.0m of bacterial culture into a series of water blanks, and then taking a sample from the water blanks to add to empty petri plates which will be filled with melted agar.

The standard plate count is a method used in microbiology, which is used to gain an insight to estimate the density of bacterial population which is present in a bacterial culture broth. This is done by plating a small concentration of the culture in a petri-dish and then counting the colonies which form in the petri-plate. This method is used mostly in the food industry, to find the density of mesophilic bacteria in food. This method is extremely essential to determine the primary source of the bacterial contaminant.

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3 0
2 years ago
How does global warming lead to succession events?
MissTica

Answer:

Due to increase temperature and drought condition.

Explanation:

Succession refers to the changes occur in the structure of a biological community with the passage of time. Global warming has a great affect on the succession events because the vegetative cover present in that area vanished due to increase in temperature which is unbearable for the vegetation and also drought condition occurs in that area due to no rainfall. Instead of vegetative cover, a new plant specie formed which has the ability to exists in that environment.

6 0
3 years ago
Having an accurate model of an atom is important except
Kay [80]

we use the model to learn about how to create new things

8 0
3 years ago
Read 2 more answers
You were instructed to compare growth on the na and columbia cna plates. why not simply compare the organisms to each other on t
Triss [41]

Answer:

Columbia CNA agar is a type of selective medium employed in culturing gram positive cocci and distincting it from clinical and nonclinical samples made up of a combined flora. Columbia CNA SHOULD NOT BE COMPARED with general culture medium such as the Nutrient agar which provides the necessary nutrients for the growth of diverse species of organisms.

Good growth stands for the growth of organisms picked or needed to culture with the required amount of colonies on Columbia CNA. Poor or no growth infers on the NA availability for the growth of the specimen organism, it is absent in the culture as it lacks the needed amount of colonies.

In conclusion, It may look good to look for the similarities and differences of the organisms to one another on the CNA plate since the NA plate is mainly the control and is used to evaluate the growth quality of the bacteria, contrasting it to the CNA plate is of no use as its main reason would be futile.

4 0
3 years ago
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