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andriy [413]
3 years ago
9

Which diagram correctly describes the changes that occur as a small piece of rock falls from space and hits the Earth?

Biology
2 answers:
umka21 [38]3 years ago
7 0
The answer correct would be c

Ivan3 years ago
3 0

Answer:

Meteoroid, meteor, meteorite

Explanation:

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The _____ is commonly called bark. <br> epidermis<br> periderm<br> cuticle<br> vascular cambium
Gelneren [198K]
The correct answer should be the Periderm.

It is not as simple as this, of course and you would be wise to know that periderm is just a part of the overall concept that is bark, because bark is not a biological term.
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Many human traits, such as blood type, are a result of more than two types of alleles. This inheritance pattern is called A) cod
allochka39001 [22]
The answer is B, multiple alleles. 

Codominant is when the gene pair in a heterozygous are both fully expressed. 

Incomplete dominance is when one allele is not fully expressed over its paired allele. 
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3 years ago
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In your own words describe three key features of a fair test
Ainat [17]

Answer:

In a fair test two or more things are compared. In order for a test to be fair or scientifically sound, children are required to ensure only one thing (this is called a variable) is changed.

For example, if testing which material is the most waterproof by pouring liquid onto a selection of different materials, in a fair test only the type of material (the component you are testing) should be changed. Therefore all other elements (the type of liquid used, the amount of liquid used, the distance the liquid is poured from, the speed at which it is poured and the size of the material) must remain the same each time the test is carried out. It would be unfair or an unscientific test if, for example, 1000ml of water were poured onto a piece of foil and 2ml of milk poured onto a piece of foam – you would not be able to fairly compare the materials. 

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2 years ago
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Muscle cell activity increases and ATP decreases below the set-point, a sensor molecule detects low ATP and activates protein ki
sergeinik [125]

Answer: Feedback mechanism

Explanation:

Feedback mechanism is the body's way of maintaining physiologic processes in the body. These physiologic processes include maintaining homeostasis, production of energy, hormones as well as enzymes required for chemical reactions.

There are 2 types of feedback mechanism:

  1. Positive feedback: The stimulus (message) sent to the brain, produces prolonged increased production or increased activity in the body.
  2. Negative feedback: In negative feedback, the stimulus causes production, secretion or activity till a set point where the body knows it has taken enough. This causes a self termination of the process.

In the increased muscle activity, the increase in activity in turn causes a decrease in energy (ATP) and serves as the stimulus leading to the release of enzymes which in turn lead to increased absorption of glucose which will be used by the body to produce more ATP needed for the muscular activity. At the end of the muscular activity, the body recognizes that it doesn't need an increased absorption of glucose to support increased activity anymore and glucose absorption normalizes.

7 0
3 years ago
Flower color in snapdragons is an example of incompletedominance. When a red-flowered plant is crossed with a white-flowered pla
Mekhanik [1.2K]
You’re answer would be B love!
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