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3 years ago

Help I need help thanks

Biology

1 answer:

Veronika [31]3 years ago

8 0

Answer:

1. Temporal

2. Ecological

3. Mechanical

4. Geographic

Explanation:

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In what direction and how many spaces must you move the decimal point to make the following

Alika [10]

Answer:

Right; 3 spaces

Explanation:

8 0

3 years ago

Two autosomal genes control horn color in dragons. Pure-breedinggold-horned dragons were mated to pure-breeding silver-horneddra

horrorfan [7]

Answer:

The genetically based phenotypic ratio for of Gold: Silver: Bronze = 9:1:6

The expected number of gold-horned dragons is = 144

The expected number of silver-horned dragons is = 16

The expected number of bronze-horned dragons is = 96

Explanation:

Given that; F2 generation consisted of:

147 gold

17 silver

92 bronze.

Total autosomal genes control horn color in dragons = 256

When we conducted the punnet square for the Pure-breedinggold-horned dragons were mated with the pure-breeding silver-horneddragons, then intercrossed them for the F2 generation, It is seen that;

The genetically based phenotypic ratio for of Gold: Silver: Bronze = 9:1:6

∴

The expected number of gold-horned dragon = $256*\frac{9}{16}$

= 144

The expected number of silver- horned dragon = $256*\frac{1}{16}$

= 16

The expected number of Bronze-horned dragon = $256*\frac{6}{16}$

= 96

Null Hypothesis = The observed ratio of Gold:Siver:Bronze

=144:16:96

=9:1:6

Observed Expected (OF - EF)² $\frac{(OF-EF)^2}{EF}$

Frequency Frequency

(OF) (EF)

147 144 9 0.062500

17 16 1 0.062500

92 96 16 0.166667

Total: 0.291667

Since Degree of Freedom = 2

Our P-Value = 0.864

∴ Our P. Value is very high that we accept the null hypothesis

7 0

3 years ago

20 point quick, brainly too

xxMikexx [17]

Answer:

Explanation:

nervous and circulatory

3 0

3 years ago

Read 2 more answers

9. Flower A blooms in June while flower B, a close relative of A, blooms in August. A researcher is raising a population of flow

Bad White [126]

Answer:

In the given case, the flowers A and B are temporally reproductively isolated from each other.

Explanation:

Reproductive isolation takes place when populations cannot mate efficiently with each other. As a consequence, slight genetic differences originate within the populations. With time, the genetic differences gathered in the isolated populations results in the formation of various kinds of different species. In the given case, even though both the flowers A and B are the similar species, the two different flowers bloom at distinct times, resulting in a time-imposed or temporal barrier to reproduction.

5 0

4 years ago

Which of the following best explains why the latitude of a region influences its climate?

Rudik [331]

Answer:

"The latitude of a region determines how much sunlight the area receives" this statement says about why the latitude of a region influences its climate.

Explanation:

The latitude determines the sunlight of the area receives because, the more the latitude the sharper will be angle of the sun's rays which will reach the surface. Means that the rays of the sun are being spread over the broader area. Hence, More the latitude receive will be the less than the lower latitude areas located nearer to the equator. As, we know the sun's ray first strikes over the Earth's surface which is near the equator as these places receive direct solar radiation. At greater latitude the solar radiations gets spread in more area and hence the temperature also reduces.

7 0

3 years ago

Help I need help thanks​

Help I need help thanks