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3 years ago

20 overall, around ___________ teenagers contract an sti sexually transmitted infection) each year.

1 answer:

3 0

overall, around twenty million teenagers contract an STI (sexually transmitted infection) each year. (The half of them are from U.S.)

A sexually transmitted infection (STI) is an infection that is transmitted between partners during different forms of sexual intercourse. This infection can lead to an infectious disease, formerly called venereal disease (the name comes from Venus, goddess of love)All sexual practices that involve mutual genital or oro-genital contact with another person, or genital fluids, are considered to carry a risk of transmitting an STI. Each STI has a different risk and severity.

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Which of the following is a limited resource?

stellarik [79]

I'm pretty sure that it's natural gas.

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3 years ago

Read 2 more answers

A city spends $15 million on a beach nourishment project that adds 1.8 million cubic yards of sand to 3 miles of beach. What is

k0ka [10]

Answer:

The answer is $8.33 per cubic yard.

Explanation:

This problem is just a normal math equation. You divide the price by how much space you are covering to get the smallest ratio(15 million divided by 1.8 million). After dividing you get the answer of $8.33 per cubic yard.

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3 years ago

Question 22 (Essay Worth 3 points) (02.01 HC) A prediction of the theory of Plate Tectonics is that new volcanoes can form at th

Darina [25.2K]

Answer:

What would be the expected result of the experiment?

For the drawing of the map part, the scientific will find that effectively, a very large number of volcanoes are located near the meeting points of tectonic plates. The volcanoes that aren't now at the edge of the plate were most probably at the moment of their formation, and were moved away by the movement of the plate.

But I doubt the scientist would be able to identify many new volcanoes, because the creation of a volcano isn't something happening overnight.

How would you interpret the results if the scientist observes no new volcanic activity?

I would say that does NOT invalidate the theory because the observation period is extremely short. 10 years is an insignificant amount of time geologically speaking... the study would have to be conducted over at least 1,000 years to maybe have some results at all. Just imagine how many volcanoes there would be if a new one was created every 10 years along the side of a tectonic plate.

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3 years ago

What is the name given to cell division in eukaryotes

mr_godi [17]

In eukaryotes, there are two distinct types of cell division: a vegetative division, whereby each daughter cell is genetically identical to the parent cell (mitosis), and a reproductive cell division, whereby the number of chromosomes in the daughter cells is reduced by half to produce haploid gametes (meiosis).

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3 years ago

In beetles, the gene for color and the gene for pattern are located on the same chromosome and exhibit recombination. The lined

Pie

Explanation:

The genes that determine color and pattern are linked.

Solid pattern allele (L) is dominant over lined pattern (l)
Blue color allele (B) is dominant over aqua color (b)

<h3>Initial cross</h3>

Homozygous lined aqua beetle has the genotype lb/lb

It can produce only 1 type of gamete: lb

Homozygous solid blue beetle has the genotype LB/LB

It can produce only 1 type of gamete: LB

The F1 is formed by the union of the parents' gametes, so it will have the genotype lb/LB

<h3>F1 test cross</h3>

Test crosses involve a homozygous recessive individual.

The homozygous recessive individual lb/lb can only produce 1 type of gamete:

lb

The F1 individual lb/LB can produce 4 types of gametes:

lb - parental
LB - parental
lB - recombinant
Lb - recombinant

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3 years ago