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irina [24]
3 years ago
15

Define each of the following and contrast them with one another 1 mineral 2 metal 3 ore 4 alloy

Biology
1 answer:
LenKa [72]3 years ago
4 0

Answer:

mineral -

This is any element or inorganic compound. It is a naturally occuring solid chemical compound found in pure form. It is commonly found within rocks.

metal -

an element known for is lustrous, opaque, and malleable properties. Metals are good conductor of heat and electricity.

ore -

This is a natural rock from which minerals, elements or metals can be extracted through mining.

alloy -

An alloy is a group of metals or metals that have one or more other elements. Take for example, red gold is a combination of gold and copper while white gold is a combination of silver and gold.

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Transcribe the following strand of DNA: 5' A T T G C G A A C T G C G A G G A C T T C 3'?
Marina86 [1]

Answer:

The correct answer will be-

3'- T U U C G C T T G U C G C T C C T G U U G -5'.

Explanation:

The formation of the mRNA from the template strand or anti-sense strand is known as the transcription.

The nucleotide in the mRNA is added in the same way as the DNA according to the Chargaff rules which states that A will bind to T and G will bind to C but instead of adenine in mRNA will add uracil.

On the basis of this, the mRNA strand will be-

template strand:  5' A T T G C G A A C T G C G A G G A C T T C- 3'

mRNA strand:     3'- T U U C G C T T G U C G C T C C T G U U G-5'.

8 0
4 years ago
Imagine that you take a journey through time, starting in the age of the dinosaurs. You see plants and animals as they turn into
VLD [36.1K]

Answer:

You take any of the "signs of change in populations of organisms and their environments". For imagine, Australopithecus (early man) turning to Homo sapiens. In that way they could tell that you took this journey.

6 0
3 years ago
Muscle tissues are characterized by the presence of elongated cells, often called ____________ , that can contract to create mov
PtichkaEL [24]

Answer:

1. Muscle Fibers

2. Bones

3. Joints

Explanation:

Muscle tissue is made of muscle fibers. The plasma membrane of a muscle fiber is called sarcolemma while its cytoplasm is known as sarcoplasm. Muscle cells are characterized by the presence of specialized endoplasmic reticulum which is called sarcoplasmic reticulum.

Muscle cells exhibit contractility and extensibility. The ability of muscle cells to shorten their length forcibly in response to a stimulus is their contractility. Muscle fibers have the ability to extend and shorten themselves.

Extension and contraction of muscle fibers are responsible for the movement of the human body and its parts.

Muscles are attached to bones via tendons which in turn are the fibrous connective tissues. Muscles are also part of our joints where they assist in the movement by pulling the bones as well as stabilize and strengthen the joints.

7 0
3 years ago
Read 2 more answers
Explain why plants along the road often die after the road is sprayed with a salt solution to melt ice
vovangra [49]

Explanation:

The salt solution is meant to lower the ice melting point hence keep most of the water from turning into ice even at zero degrees temperatures. The salts are dissolved in the water to form a salty solution that percolates the ground and reach plant roots. Because the salty water is hypertonic (more concentrated) to the cell cytoplasm of the plant roots, water is drawn from the plant by osmosis. This is the reversal of normal plant root absorption of water from the soil. This causes the plant root to wither and subsequently the whole plant to die. Remember in osmosis, water moves from the less concentrated solution to the more concentrated solution through a semipermeable membrane.

Learn More:

For more on osmosis check out;

brainly.com/question/6320563

brainly.com/question/13418400

#LearnWithBrainly

5 0
3 years ago
Plate tectonics have caused global climate change in the past. This is because _____.
kupik [55]
The shifting of the plates upset the environment in a negative way and changed the amount of carbon dioxide going into the air.
4 0
3 years ago
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