BIOLOGY MIDDLE SCHOOL

Describe how terracing reduces soil erosion.

Answers

Answer 1
Answer: terracing prevents erosion by eliminating or at least minimizing the slope of the ground which in turn slows the water run off. This allows plant life to root better which keeps the soil in place.

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Taking big particles inside the cell by using energy is called _______A diffusion B osmosis C exocytosis D endocytosis

describe a day in the life of a chromosome. Please include descriptions of the processes of independent assortment, crossing over, and mutations.

Answers

Well, it is quite a large topic, so you have to resolve it yourself, but I can give you some tips how to organize your essay and how to start. At first, just write it like a diary note, make an introduction with name and add the ''chromosome'' to your name. Then just check on the Internet all the processes you need to include and rewrite it in the informal way, describing each of them like you feel it. To make it easier, divide your text on pharagraphs where each one refers to particular process. Use your imagination!

A student writes in a laboratory notebook: I placed a piece of iron in a beaker of water and the iron sank to the bottom of the beaker. -- What the student wrote in the laboratory notebook is an example of a(n) *1. observation
2. prediction
3. inference
hypothesis

Answers

The student OBSERVED what happend therfor the answer is 1

Answer:

A student writes in a laboratory notebook: I placed a piece of iron in a beaker of water and the iron sank to the bottom of the beaker. -- What the student wrote in the laboratory notebook is an example of a(n) *

Explanation:

A student writes in a laboratory notebook: I placed a piece of iron in a beaker of water and the iron sank to the bottom of the beaker. -- What the student wrote in the laboratory notebook is an example of a(n) *

The Sun appears _______ in the sky and for a _______ period of time each day during summer than it does during winter.A.
lower; shorter
B.
higher; longer
C.
lower; longer
D.
higher; shorter

Answers

The till is the reason of the days are longer in summer and shorter in winter. The answer is B higher; longer.

Answer: The answer is B

Explanation:

Did it on study island

An organism that makes its own food is known as a

Answers

Answer:

An organism that makes its own food is known as a producer.

Let me know if you need anymore help!

Answer:Autotroph

Explanation:

IT'S VERY IMPORTANT PLEASE HELP!In a species of dogs, a black coat is dominant over a white coat. The offspring from a black dog and a white dog all have gray coats. This is an example of _____.
incomplete dominance
complete dominance
codominance
sex-linked genes

Answers

The correct answer is A. Incomplete dominance

Explanation:

Incomplete dominance occurs in genetics when two alleles lead to a new observable trait (phenotype), this occurs because the two alleles (variants of genes) combine or express at the same time, and therefore neither of the alleles shows a complete dominance. This type of dominance differs from codominance because in codominance both alleles express equally without combining or creating a new phenotype.

The case presented is an example of incomplete dominance because the allele that leads to black coat and the one that leads to white coat are combining, and therefore none of the alleles is completely dominating; also, in this case, there is a new phenotype or trait, which is the gray coat of the offspring that results from combining black coat and white coat alleles.
Incomplete dominance

12. Jacks and silversides are a good example of an evolutionary arms race between predators and prey. Describe the predatory adaptations of the jacks, and the defensive adaptations of the silversides

Answers

Answer:

Predators is an organism which can be described as the hunter who hunts for food. An d prey can be described as the organism on which the predator will feed.

Silversides can be described as small fishes which are very thin. They are usually found in fresh water or near the coastal areas.

The adaptation of the Jacks include :

  • They are fast.
  • They attack the prey in herds.

Adaptations of silverside are:

  • They have colour much transparent or like the colour of water which allows them to hide.
  • They travel in groups.
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PLEASE NEED CORRECT ANSWERS ASAP 40 POINTS Gastric juices are secreted by glands which are located in the _____.small intestinemouthstomachpancreasMatch these items.1. absorbs most ultraviolet raysstratosphere 2. lowest layer of the atmospheregreenhouse effect 3. starts seven miles above the earththermosphere 4. layer composed of layers troposphere 5. important for its radiowave reflection ozonosphere 6. trapping of heat by earth's atmosphere ionosphere