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yaroslaw [1]
3 years ago
11

the variety of organisms at all levels in an ecosystem is __________. genetic diversity conservation biomes biodiversity

Biology
1 answer:
kaheart [24]3 years ago
6 0
Biodiversity is the correct answer
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What is the density of a 75 g cube measuring 4 cm on each side
Tema [17]
D = m/V

m = 75g

V = 4 x 4 x 4 = 64 cm^3

d = 75/64 = 1 11/64 g/cm^3

5 0
3 years ago
The 22 pairs of chromosomes in human somatic cells that are the same in males and females are called
Over [174]

Autosomes. The somatic chromosomes are referred to as autosomes.

3 0
3 years ago
Why do calculated recombination frequencies between pairs of loci that are located far apart underestimate the true genetic dist
den301095 [7]

Answer:

B. As the distance between loci increases, some multiple crossovers go undetected such that the relationship between recombination frequency and map distance ceases to be linear.  

Explanation:

When calculating recombination frequencies, and hence, map distances, we might notice that these distances are not completely additive. They might vary. <em>For example, let us say that we have three genes, A, B, and C, in that order. </em>We calculated that the <em>distance between A and B equals 5.9</em> MU and that <em>B and C are 19.5 MU apart.</em> According to this, we might say that the <em>total distance between A and C is 25.4 MU (5.9 + 19.5). </em>However, after a<em> two-point calculation between A and C, the value equals 23.7 MU. </em>

The recombination frequency between these two genes located in the extremes and far apart underestimate the actual genetic distances between them because there might occur other crossing-overs that were not detected. This is <em>when calculating the distance between A and C, we probably will not detect the occurrence of a double recombinant between them, and hence, we might sub-estimate the real distance.</em>

The relationship between the actual map distance (number of crossing overs) and the recombination frequency between two loci, is not lineal. The farther apart are the two genes, the worse is the distance estimation.  

8 0
3 years ago
Write about how the group of rock layers in record a forme include tilting erosion and folding
neonofarm [45]

Answer:

Most sedimentary rocks are formed in level layers. Therefore, the occurrence of tilted rock layers is evidence of mountain building. ... Tilting can also result when rocks are pushed upward, or uplifted. In some areas of the world, rock layers are so severely tilted that they may be bottom side up. Layered rocks form when particles settle from water or air. Steno's Law of Original Horizontality states that most sediments, when originally formed, were laid down horizontally. ... Rock layers are also called strata (the plural form of the Latin word stratum), and stratigraphy is the science of strata.

6 0
3 years ago
What type of molecule is produced by the ribosome?
-Dominant- [34]

Answer:

The correct answer is - C. protein.

Explanation:

Ribosomes are biological molecules that are made up of RNA and proteins. These molecules produce protein molecules with the help of mRNA by the process of translation. These molecules are called the factory of protein or protein synthesis site.

The RNA that is present in these molecules is ribosomal RNA. These are attached to the other cell organelles called endoplasmic reticulum used the protein to check and modify them.

8 0
3 years ago
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