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cupoosta [38]
3 years ago
8

Which of the following best describes the role of bacterial decomposition in the ocean?

Biology
1 answer:
Darya [45]3 years ago
6 0

They are pervasive and play many different roles in the marine environment, from being the base of the food chain, controlling much of the flow of marine energy and nutrients, and being essential to the ocean's health.

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What are 4 catalogs of organic molecules which form the base of living things?
katen-ka-za [31]
They are Nucleic Acids, Proteins, Carbohydrates, and Lipids
8 0
3 years ago
In addition to the transmission electron microscope (TEM), there is another type of electron microscope that is frequently used
Veseljchak [2.6K]

Answer:

The basic difference between SEM and TEM is that TEM generates an image with the assistance of radiation that goes through the specimen, while the images generated by the SEM take place with the assistance of electrons getting released from the surface of the specimen.

SEM is primarily used to examine the composition of the surface, with the help of SEM one can study the microbes present in the ecological niche like in the lining of the gut and human skin. Due to its great depth, it is considered the electron microscope analog of a stereo light microscope. It helps in providing complete images of the cells present on the surface, which are not easy to get with the help of TEM. Due to its enhanced functionality, it can also be used for size determination and particle counting, and also for process control.

3 0
2 years ago
10. Researchers observe a large population of birds on a remote island. Birds in the population are found to have either red cre
IgorLugansk [536]
Suppose that the proportion of the white crest alleles (r) is given by w and that of the Red crest allele (R) is given by p. We have that p+w=1. The probability that an individual has 2 r alleles is given by w*w since for each allele position the probability is w. Only these individuals have a White phenotype. Hence, we get that w^2=\frac{1759}{1759+11088}; the right hand side is the proportion of white birds in the total population. Doing the calculations, this yields that w=0.37. From this, we calculate that p=0.63. The possible ways we have heterozygous individuals are the combinations Rr and rR. The probability for each of those is p*w. Thus, the total probability is 2pw. This is equal to 0.466=0.47. This is the fraction of the future population that is going to be heterozygous assuming the conditions of the Handy-Weinberg equilibrium like random reproductive matching etc.
7 0
3 years ago
6. (50 points) EXPLAIN all of the tree trimming steps in order as if you were discussing a job with a
stiks02 [169]

Step one: Travel approximately 18 inches up the underside of the branch you are removing. Cut up about halfway through the branch.

Step two: Move to the top side of the branch. Choose a location an inch further out from your first cut. Carefully cut down until the branch breaks free.

Step three: Find the branch collar on your trunk. This is stem tissue around the base of the branch. . Make a complete cut with a 45-degree angle kicking out from the base of the tree.

(SOURCE Chris Lambton) Add your vocabulary words in along the way if you decide to use my answer.

5 0
3 years ago
The table in Figure 12-2 shows the percentages of bases in a DNA sample. How much Thymine should you expect to find in the sampl
pickupchik [31]

Answer:

22% Thymine

Explanation:

There should be 22% Thymine because of Thymine pairs with Adenine, which on the table is shown to be 22%. (the complementary  base pair are always equal). and the same would apply to Guanine (28%) and cytosine (28%).  

4 0
3 years ago
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