How might a person use a floating stick to measure the speed at which a river flows?

1 answer:

7 0

A person might use a floating g stick to see how fast a ricer flows because when you put th e stick in the water,the stick moves with the water and goes as fast as it does, so when you look at how fast the stick is, you know how fast the water is.

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What would happen to your dragon if the 10th nucleotide in sequence 3 was changed to a Cytosine? If it already was a Cytosine, w

Scrat [10]

Answer:

A point mutation with occur.

Explanation:

This quesiton might need more info but in general a point mutation will occur.

7 0

2 years ago

The formation of sinkholes has become a fairly common phenomenon in the state of Florida. Most sinkholes are small, but some sin

mezya [45]

Answer:

Sinkholes can occur when<u> excessive water use lowers a water table and weakens the substrate.</u>

Explanation:

There are various causes for sinkholes, but all are related to water and how this can affect the soil. One of the causes of sinkholes is the excessive use of water. Excessive use lowers the volume of water in aquifers. As a consequence, the substrates that are above the aquifer change. They can not support large amounts of weight, leading to a sinkhole and soil with low permeability.

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3 years ago

Joe is color blind. both his mother and his father have normal vision, but his mother's father (joe's maternal grandfather) is c

Arte-miy333 [17]

The answer is x-linked recessive. It is apparent that the color blindness affects the males hence it's caused by a sex-linked recessive gene. Males have XY homologous chromosomes. The X sister chromosome has more genes than the Y sister chromosome, hence most males are hemizygous for sex linked genes. This means that even recessive genes on the X chromosome are likely to be expressed in males.

3 0

3 years ago

Which group of algae is believed to be the ancestor of land plants?

ycow [4]

Answer:

<u>stonewort, and many green algae such as the Spirogyra.</u>

Explanation:

As it was believed that the land algae were believed to be evolved from the stonewort plant and the blue-green algae like the cyanobacteria and the spirogyra that colonized the lands some 500 mn years ago was a freshwater alga.

After which the first land plants occur about 470 million years ago, and they were in the form s of moss and liverworts of the vascular in origin.

7 0

2 years ago

A population of frogs with slightly different coloring is an example of

Julli [10]

A population of frogs with slightly different coloring is an example of microevolution. Microevolution is the changes in the gene pool of a population that can be measured and observed in short periods of time within a population. Microevolution can take place in several ways such as gene flow, genetic drift, mutation and selection.

8 0

2 years ago