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Fynjy0 [20]
4 years ago
10

In the 20th century

Biology
1 answer:
Pie4 years ago
5 0

Answer:b. The earth has warmed 10 times faster than it did coming out of the last Ice Age

Explanation: global warming from environmental degredation.

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Consider the allelic frequency of the alleles of the bigmouth gene in a population of 10 people. In this population, 2 have the
yan [13]

Answer:

A. q 0.55

Explanation:

Frequency of genotye "BB" = \frac{2}{10}=0.2

Frequency of genotye "bb" = \frac{3}{10}=0.3

Frequency of genotye "Bb" = \frac{10-(2+3)}{10}=0.5

Frequency of bb is represented as "q^{2}" as per  Hardy Weinberg's principle.

Thus, frequency q of the recessive allele b is represented by

q= \sqrt{q^{2} } \\q = \sqrt{0.3} \\q = 0.547\\q=0.55

Hence, option A is correct.

4 0
4 years ago
The law of segregation explains that * alleles of a gene separate from each other during meiosis. different alleles of a gene ca
Rasek [7]

Answer:

alleles of a gene separate from each other during meiosis.

Explanation:

Mendel observed that the F1 expressed only one of the alternative variants (in this case, only rounded seeds appeared), while the other variant (wrinkle) disappeared. Mendel named "dominant" the expressed variant. Mendel allowed auto pollination and observed that in the second generation, F2, the other disappeared variant reappeared. Both alternative variants were present in the F2. Mendel named "recessive" the second alternative variant.

Mendel thought that hereditary traits determined by discrete factors were the possible explication for these phenotypes. These factors should have been present in the F1 in pairs. One of them came from one parental plant, and the other factor came from the other plant. These factors then separated again when sex cells were produced, giving two types of gametes, each with only one factor.

Mendel concluded that each individual (plant) has a pair of factors (alleles), one for each trait (R and r) and that the pair separates (<u>segregates</u>) during the formation of the gametes. This conclusion is known as the segregation principle (First Mendels´ Low).

3 0
3 years ago
Can someone please help me fill this out?? <br> Thank you :)
forsale [732]

Answer:

Endoplasmic reticulum: Sac filled with digestive chemicals

Ribosomes: Small structure that synthesizes proteins

Golgi body ( Golgi apparatus): Stack of membranes that packages chemicals

Lysosome: Structure that manufactures ribosomes

Mitochondria: Structures that converts nutrients to energy

Cell membrane: Membrane that surrounds and protects the cell.

Explanation:

I'm learning this too in school so I know this is right!

3 0
3 years ago
Please Help!!! Hurry!!!
sleet_krkn [62]
Edwin Hubble used the Doppler effect to determine that the universe is expanding. After years of scientific research and observation of different celestial bodies through a telescope, Hubble found that the light from distant galaxies was shifted towards the red end of the spectrum. This red shift indicates that stars are moving away from us and from each other. This phenomenon is called the 'expansion of the universe', also known as the big band theory.
4 0
3 years ago
Need help pleasee anybody
rjkz [21]

The first one since your doing on the whole neighborhood and not just that one location. You need find the average soil quality and so you need to sample 10 different locations in that neighborhood.

6 0
4 years ago
Read 2 more answers
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