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3 years ago

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Select the correct answer from the drop-down menu.

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const2013 [10]3 years ago

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Answer:

They create a Mountain Peak

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A model of cell division is shown here. A student evaluates the model and makes the claim that the cell division increases genet

loris [4]

Chromosomes exchange genetic material in step 3.

<h3><u>Explanation</u>:</h3>

The meiosis is the type of cell division that takes place for gametogenesis. The meiosis has two phases - meiosis I and meiosis II.

The meiosis I has the events like crossing over and independent assortment which leads to the mixing of genes between homologous chromosome pairs and separation of homologous chromosome pairs. So the two cells that are produced from the meiosis I are genetically different. The step 3 shows the crossing over of prophase 1 of meiosis I. So, it shows the genetic difference between the offsprings and leads to genetic variation.

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3 years ago

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Ratling [72]

i will try to help!

Explanation:

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3 years ago

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When studying animal behavior, the distribution of organisms within a choice chamber can be studied to identify animal preferenc

Komok [63]

Answer:

c

Explanation:

Random distribution of the Isopods should be 50/50 in A and B.

Chi-square = $\frac{(O - E)^2}{E}$ where O = observed frequency and E = expected frequency

Chamber O E Chi-square

A 18 10 $\frac{(18 - 10)^2}{10}$ = 6.4

B 2 10 $\frac{(2 - 10)^2}{10}$ = 6.4

<em>Total Chi-square </em>= 6.4 + 6.4 = 12.8

<em>Degree of freedom</em> = 2 - 1 = 1

<em>Tabulated Chi-square</em> (α = 0.05) = 3.8415

The calculated Chi-square exceeds the critical value, hence, it is significant and not due to random.

<em>The correct option is </em><em>c</em><em>.</em>

4 0

3 years ago

WILL MARK BRAINLIEST!! Which of the following statements best illustrates the image below?

AURORKA [14]

You need to post the image and statements!

4 0

3 years ago

A certain strain of bacteria divides every 2 hours. If a colony is started with 80 bacteria, then the time t (in hours) required

Mamont248 [21]

Answer:

The time required for the colony to grow two million bacteria is 29.22.

Explanation:

Time required for the colony to grow can be calculated by the following equation:

$t=2log(N/80)/log 2.$

Here t is time, N = 2 million (require bacteria population).

$t=2log(2,000,000/80)/log2$

t ≈ 29.22

Time taken by bacteria to grow is 29.22.

4 0

3 years ago