A chemical change must have occurred in investigation B step 2 because a change in color occurred.
<h3>What is a chemical change?</h3>
A chemical change is said to occur when a new substance has been formed. The markers of the occurrence of a chemical change are signs such as;
- Evolution of a gas
- Appearance of a solid
- Change of color
- Change of temperature
Now a physical change does not involve the formation of a new substance. Physical change would always involve the change of a substance from one form to another such as the melting of ice.
As such, in looking our for the steps in which a chemical change occurred we must look out for the properties of a chemical change as mentioned above.
Now, a chemical change must have occurred in investigation B step 2 because a change in color occurred.
Learn more about chemical change:brainly.com/question/23693316
#SPJ1
Missing parts;
Investigations were carried out in a science lab to explore the topic of chemical and physical changes. Investigation A Step 1. Add 5 tsp. salt to 100 ml warm water and stir until most or all of the salt is no longer visible. Step 2. Heat the salt solution on a burner until only a white solid remains. Investigation B Step 1. Mix 10 tsp. white sugar into 100 ml water and stir until most or all of the sugar is no longer visible. Step 2. Heat the sugar solution on a burner until the solution thickens and turns brown. In which step(s) did a chemical change most likely occur?
Living organisms are made up of organic matter. We as human are made up of nutrients and water and chemicals. While those structures like bridges are made from hard materials, some forged by man and some found in earth like metal and gold. They can heat up and be molded while living organisms die or burn to ashes
Answer;
-For individuals with phenylketonuria
Explanation;
The warning label that appears on products containing NutraSweet (aspartame) is necessary to prevent problems for people with phenylketonuria.
Phenylketonuria is an inherited disorder that increases the levels of a substance called phenylalanine in the blood. Phenylalanine is a building block of proteins (an amino acid) that is obtained through the diet.
Aspartame is one of the most common artificial sweeteners in use today. It is made by joining together the amino acids aspartic acid and phenylalanine. Treatment of phenylketonuria involves a diet that is very low in phenylalanine, particularly when the child is growing.
The type of inversion is Paracentric inversion.
There are two types of inversion at the chromosome level, depending on the centromere:
Paracentric inversions:
the centromere is not included in the inversion.
Pericentric inversions:
The centromere is included in the inversion which can transform a metacentric chromosome into an acrocentric chromosome.
the structure that will form during synapsis is inversion loop.
These inversions are balanced rearrangements but at the moment of meiosis they cause difficulties in pairing. There is most often formation of a pairing loop. The occurrence of recombination in the inverted segment causes the formation of abnormal gametes by duplication / impairment.
Receptors are organs or cells able to respond to light,heat, or other external stimulus and transmit a signal to a sensory nerve. If you accidentally place your hand on the stove then your body wouldn’t be able to react quickly which would cause your skin to burn.