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Naddik [55]
3 years ago
14

Im stuck on the first 2 answers

Biology
1 answer:
Softa [21]3 years ago
8 0

Answer:

Trees in and around Austin are uprooted from heavy wind

Explanation:

Goose island is already on the coast so it's used to salt water.

The birds won't become extinct in one day.

It takes a while for a river to be completely destroyed naturally.

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A pair of mice are bred several times generating the following data table. What are the most likely genotypes of the parents?
Tamiku [17]

Answer:

This question lacks options, the options are:

A) FF and ff

B) FF and Ff

C) Ff and Ff

D) Ff and ff

The answer is D (Ff and ff for parent 1 and 2 respectively)

Explanation:

This question depicts a single gene coding for fur colour in mice. The gene controls two traits, black fur and white fur, encoded by alleles F and f respectively.

According to the question, a pair of mice has been bred several times to generate the same data of 22 black fur and 23 white fur mice. Based on this data, it shows that the phenotypic ratio of black to white mice is 1:1.

To get a 1:1 phenotypic ratio of black fur offspring to white fur offspring, the parents mice must have genotypes Ff (heterozygous) and ff (same recessive alleles).

In a cross between parents Ff × ff (see punnet square), offsprings with the following genotypes will be produced: Ff, Ff, ff and ff. Ff is black furred while ff is white furred.

Ff (2) : ff (2) is equivalent to Ff (1) : ff (1).

Hence, a data of 22 black mice and 23 white mice which represents a 1:1 ratio will only be produced by parents mice with genotypes: Ff and ff.

3 0
3 years ago
What in the human brain do addictive substances like nicotine react with?
Ksju [112]

Nicotine, once in the brain, will work specifically on nicotinic receptors in the brain. However, there is a common "addiction" pathway in the brain that pretty much all addictive substances go through.


4 0
3 years ago
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The highest a tornad speed is <br><br> A 200<br><br> B 500<br><br> C 100
Talja [164]
The highest speed is B

7 0
3 years ago
The _____ is the fluid component of blood.
Allisa [31]

Answer:

Plasma!

Explanation:

8 0
3 years ago
Read 2 more answers
Which of the following statements is FALSE?
Naya [18.7K]

Answer: d. None of the above is false.

Explanation: The reasons are:

Intermolecular forces should be reduced when molecules need to be vaporized, otherwise they will not be converted into vapours.

When the temperature increases, forces of attraction decreases which allows molecules to evaporate because energy will be increased which allows molecule to break bonding between them. Hence increasing temperature has effect on vaporization.

Dispersion forces is the weakest force between molecules and hydrogen bond is strong so molecule having only dispersion force will evaporate at the higher rate.

8 0
3 years ago
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