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andreev551 [17]
3 years ago
14

Describe the difference between a chemical and physical change

Biology
1 answer:
Drupady [299]3 years ago
8 0

Answer:

A physical change effects a substance physically. Examples include cutting, bending, dissolving, freezing, boiling, and melting.

A chemical change effects a substance chemically. Examples include burning, rusting, and digesting.

Hope this helps.

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In holstein cattle, the allele for black hair color (b) is dominant over the allele for red hair color (b), and the allele for p
ELEN [110]

I hope you meant, a cross between BbPp and BbPp, else for bbpp x bbpp, all the progeny will be bbpp.

We need to work out a Punnett square to determine the genotypes resulting from the cross between BbPp and BbPp. The dyhybrid cross results in 16 different genotypes, of which a few have the same phenotypes.

It can be seen that there are 4 different kinds of phenotypes present, in the ratio 9:3:3:1.

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I think the correct answer would be D. In the process of petrification, a tree burning is not included. Petrification is a process that involves organic materials turning into fossils by replacing the original contents of a certain object with minerals.
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3 years ago
Explain how the data from your experiments showed that cyanide was used to poison Jared, and that 2-deoxyglucose, arsenic and ol
Aliun [14]

The question is incomplete as the background of the case and symptoms of Jarod is not provided, however, the missing data required for the question is as follows:

Jared was investigating a drug cartel and ate a meal with one of the suspects. After the meal, he had trouble breathing and felt weak and dizzy. Jared may have been poisoned. He is being taken to the CIA hospital for treatment. You are a medical toxologist working for the CIA. It is your job to find out what poison was given to Jared and try to save his life. Patient: Jared Sondheim Age: 32 Occupation: CIA Agent Symptoms: Muscle Weakness Shortness of Breath Dizziness. Jared has arrived at the hospital! It is your job to find out what toxin was used to poison Jared. You can then give him the correct antidote to save Jared's life.

Answer:

Poisning by 2-deoxyglucose syops the glycolysis process which leads to cardiovascular and respiratory symptoms. Due to property of inhibiting the enzyme reqquired for glycolysis, glucokinase. So, there is no ATP production takes place.

Arsenic poisoning inhibits the second stae of cellular respiration, the Krebs cycle which leads to pyruvate accumalation. The symptoms associated with arsenic are diarrhea, sking tone, abdomunal pain, and muscle cramps.

Oligomycin is used as an antibiotic to inhibit proton ATPase present in mitochondria membrane which blocks ATP formation. Watery eyes, cough, congestion in chest and nose are sysmptopms of oligomycin poisining.

The symptoms cyanide poisoning are dizziness, short breath, nd muscle weakness which matches with the symptoms of jarod.

6 0
3 years ago
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Why did scientist use a classification systems for all living organisms?
liubo4ka [24]
So that scientists all over the world know exactly what organism is being discussed or investigated Classification of organisms is important because it greatly expands researchers' ability to make educated guesses about particular species. For instance, in many cases, a particular organism may be both difficult to study and also threatened or endangered, or even human and ethically incapable of being experimented upon. However, a related organism may be quite similar to the species of interest, yet not threatened or endangered and without ethical concerns. I see this implementation of classification in the field of herpetology all the time, but it is true across the board in biology
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4. What is the scale used to determine the strength of a HURRICANE?
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Answer:

Saffir-Simpson Hurricane scale

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Explanation:

mark me brainlest

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