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JulijaS [17]
3 years ago
9

Human activities can alter an ecosystem and bring about the extinction of a species. Such activities include any of these except

A) hunting a species to extinction. Eliminate B) assuring a habitat remains unaltered. C) introducing toxic compounds into food webs. D) introducing a new species into an environment.
Biology
1 answer:
8090 [49]3 years ago
7 0
B. Assuring a habitat remains unaltered
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Polydactyly is a trait found in cats and humans in which a person (or cat) has 6 digits per
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Answer:

1/2 or 50%

Explanation:

This question involves a single gene coding for the number of digits per paw in cats or humans. The allele for polydactyly i.e six digits (P) is dominant over the allele for normal number of digits i.e 5 (p).

According to this question, If a man who is heterozygous (Pp) for this trait marries a woman with 5 fingers (pp), the following gametes will be produced by each parent:

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Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:

Pp, Pp, pp and pp

The offsprings with genotype Pp will have polydactyl, hence, the chances that they will have a child with polydactyly is 1/2 or 50%.

7 0
3 years ago
Your cookbook says that roast beef is rare at 140°, medium at 160°, and well done at 170°. You like your beef cooked between med
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The temperature that is obtained is 71 degrees Celsius.

<h3>What is a cookbook?</h3>

A cookbook is a book that contains various recipes and how they can be prepared. It is commonly used by chefs and other people who are into the cookery business.

Now we are told that the student likes the meat at medium which is a temperature of 160° Fahrenheit. We have to to convert this given temperature to degree Celsius.

Now using the relation;

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C = (160 - 32) * 5/9

C = 71 degrees Celsius.

Learn more about temperature scales:brainly.com/question/12500590

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2 years ago
The parents of a child diagnosed with attention-deficit syndrome receives a prescription for a central nervous system (cns) stim
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"<span>The presence of a distinct pith and cortex in a dicot stem and an undifferentiated ground tissue monocot stem" is the one among the following features that </span><span>differentiates a dicot stem from a monocot stem. The correct option among all the options that are given in the question is the second option or option "B".</span>
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Which is NOTa process that lifts air
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