BIOLOGY MIDDLE SCHOOL

Rivers that have developed over a long period of time are found in wide valleys with flat, low-lying bottoms. These valleys were created by the removal of rock and soil through the process of _______.

Answers

Answer 1
Answer:

Rivers that have developed over a long period of time are found in wide valleys with flat, low-lying bottoms. These valleys were created by the removal of rock and soil through the process of Erosion.

What is Erosion?

Earthen materials are worn away during erosion, a geological process in which they are moved by wind or water. Weathering, a related process that does not involve movement, dissolves or breaks down rock.

The geological process by which earthen elements are deposited, or built up, on a landform, is called deposition. Erosion is the opposite of deposition.

Erosion occurs when the water or glacier ice is murky, the wind is dusty, or both. The brown tint shows that soil and rock fragments are being transferred from one location to another while suspended in the fluid.

Therefore, Rivers that have developed over a long period of time are found in wide valleys with flat, low-lying bottoms. These valleys were created by the removal of rock and soil through the process of Erosion.

To learn more about Erosion, refer to the link:

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Answer 2
Answer: EROSION sorry for the caps hahahahahahahahahahahahahahahahahahaha

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Organisms with advantageous adaptations are more likely to survive and reproduce than organisms without the advantageous adaptations. This phenomena is known as natural selection.In order for natural selection to occur
A.) organisms within a population must have some genetic variation.
B.) there must be more male organisms than female organisms.
C.) all of the organisms within a population must be exactly the same.
D.) one population must become extinct so another can be created.

Answers

Inorder for natural selection to occur organisms within a population must havesome genetic variation. Naturalselection is when species learn to adapt to their environment. They could (1)differential reproduction, that is, not all organisms are able to reproduce totheir fullest capacity because nature cannot simply sustain it and (2) acquire genes,that is heredity. Certain characteristics of organisms tend to survive if itcontinues to strive. If it survives, this trait is passed down to the nextgenerations forgetting the other traits but only the one who could survive theenvironment. Therefore it is true that natural selection is when‘organisms inherit advantageous traits, and tend to reproduce more successfullythan other organisms’.

A. organisms within a population must have some genetic variation.

Warm moist air rises rapidly from the ocean surface and meets the cooler air above Which of these weather conditions is most likely to follow?blizzard
tornado
hurricane
thunderstorm

Answers

Answer: Hurricane

It's correct! Hope it helps ^^
I think it’s a hurricane because they are usually on the coast for example Florida

Which physical property would not be useful for finding the difference between baking soda and cornstarch?

Answers

Answer:

c. melting point

Explanation:

with the rest of the answer you can find the differences so its c. melting point

:)))))))))_))))))))))))

Final answer:

The taste or smell is not a useful physical property for finding the difference between baking soda and cornstarch.

Explanation:

The physical property that would not be useful for finding the difference between baking soda and cornstarch is taste or smell.

While both baking soda and cornstarch may have different tastes and smells due to impurities or additives, these properties do not provide an objective measure for distinguishing between the two substances.

Instead, other physical properties such as solubility, density, or melting point could be more useful in differentiating baking soda from cornstarch.

Learn more about baking soda and cornstarch here:

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Transgenic organisms can express the foreign genes because all organisms are based on the same

Answers

Answer:

genetic engineering is possible because all organisms are based on the same. genetic code. scientists can study the effect of turning off a gene by using. gene knockout ... a ring of bacterial dna with foreign DNA inserted ... transgenic organisms can express the foreign genes because all organisms are bases on the same.

Explanation:

Garments cannot be made out of coconut fibre.why?

Answers

Garments cannot be made out of coconut fibre because they are very rough and are unable to be sew as it also the break very easily.

The coco fiber or coir is a fiber extracted from the husk of a coconut and is often used to make floor or door mats, mattresses and brushes. It is hard that is only suitable in making upholstery padding and sacking.

In pea plants, purple flowers are dominant over white flowers. The phenotype ratio of purple to white flowers in a population of five plants is 4:1. How many plants have white flowers?1
2
4
5
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In some lizard species, a short tail is recessive and a long tail is dominant. According to the principle of dominance:
a lizard with a TT genotype will have a short tail
a lizard with a tt genotype will have a long tail
a lizard with a Tt genotype will have a short tail
a lizard with a tt genotype will have a short tail

Answers

1. 1
Since the ratio is purple flowers to white flowers, and the ratio is 4:1 out of 5 plants, there is 1 white flower. Remember that, in a ratio, the first number is the first one mentioned, and the second number is the second one mentioned.

2. A lizard with a tt genotype with have a short tail
Since the short tail is recessive, it can be represented with a lowercase letter (t), and since the long tail is dominant, it can be represented with a capital letter (T). Because the long tail gene is dominant, if even one capital T is present in a genotype, the lizard will have a long tail. You can label the different kinds of genotypes if it helps.

TT - long tail, since both genes are for a long tail
Tt - long tail, since one gene is for a long tail, and the long tail is dominant
tt - short tail, since both genes are for a short tail

Hope this helps!
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