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Llana [10]
3 years ago
8

Where does the magma or melted rock in volcanos originate?

Biology
1 answer:
Umnica [9.8K]3 years ago
7 0

Answer:

b. from the mantle

Explanation:

You might be interested in
Why are antibiotics effective in curing diseases against some pathogens but not others?
Leya [2.2K]

Answer:

The correct answer is "I, II, and III".

Explanation:

The missing options of this question are:

I only

II only

III only

I, II, and III

The correct answer is "I, II, and III".

Antibiotics are of different spectrums of activity depending on the number of pathogens they can kill. They are different reasons for this differences in antibiotic specificity:

I. Antibiotics interrupt processes found in some but not all pathogen cells. For instance, some antibiotics are directed to cell walls that not all bacteria posses.

II. Some pathogens have no metabolic processes to interrupt. The antibiotics that are directed to metabolic reactions of bacteria are not effective in treating viruses because they do not perform this metabolic reactions.

III. Some pathogens have developed genetic resistance to specific antibiotics. Bacteria have a remarkable genetic plasticity having plasmids that can be easily transmitted among them, which give them antibiotic resistance.

7 0
3 years ago
Bart believes that mice exposed to radiowaves will become extra strong (maybe he's been reading too much Radioactive Man). He de
solniwko [45]

1) Mice not radio waved.

2) Radio

3) Strength of mice

4) Maybe inconclusive.

5) Improves strength

Explanation:

  1. Control Group - Mice not radio waved.
  2. Independent Variable - radio.
  3. Dependent Variable - Strength of mice.
  4. What should Bart's conclusion be? Maybe inconclusive.
  5. How could Bart's experiment be improved? Improves strength

Experimental setup

setup that is testing a hypothesis using a variable. In most cases only one variable should be tested at a time.

Control Setup

setup that is identical to the experimental setup, only it does not contain a variable.

Independent Variable

The one factor that is change by the person doing the experiment

Dependent Variable

The factor which is measured in the experiment

Constant

all the factor that stay the same in an experiment.

4 0
3 years ago
Mention four organs of the respiratory system​
Ratling [72]
The respiratory system consists of all the organs involved in breathing. These include the nose, pharynx, larynx, trachea, bronchi and lungs. ... The nose, pharynx, larynx, trachea and bronchi all work like a system of pipes through which the air is funnelled down into our lungs.
3 0
3 years ago
In what part of the cell cycle does chromatin condense and form sister chromatids?​
Gnoma [55]

Answer:

prophase cells, ( ^_^ ) /

Explanation:

" parent cell into two identical daughter cells. During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses. "

5 0
3 years ago
Read 2 more answers
What types of animals are prosimians?
valentina_108 [34]

Prosimians are a group of less-developed primates.

<h3>What are Prosimians?</h3>

They are a group of primates with some less-developed features as compared to other primates.

The more developed primates are referred to as Simians and these include humans, apes, and monkeys.

Prosimians include both living and extinct animals such as the lemur, lorises, and galagos.

More on Prosimians can be found here: brainly.com/question/14521463

#SPJ12

8 0
2 years ago
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