Answer:
This law states that, despite chemical reactions or physical transformations, mass is conserved — that is, it cannot be created or destroyed — within an isolated system. In other words, in a chemical reaction, the mass of the products will always be equal to the mass of the reactants.
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Answer: The correct answer is- B)They are single cells that lack a nucleus and tend to live in extreme conditions.
Archaebacteria are the oldest life forms, which are found on earth. They are unicellular ( made up of one cell) prokaryotes ( lacking nucleus and membrane bound subcellular organelles) belonging to the kindom, Archea. They are found in extremely harsh environmental conditions such as hotsprings, boiling mud surrounding volcanoes.
Example- Methanogens, halophiles.
Thus, option B) is the right answer.
Answer: The killer is C; Karen
Explanation:
After looking at the birdbaths results and Karen's results, you can see that they are the same. This will make Karen the killer. Since the killer washed their hands in the birdbath, the detectives were able to get trace amounts of DNA.
DNA fingerprints are determined by a chemical test. This takes the persons genetic makeup and matches it with other peoples that are in a database. This type of DNA testing can be used in courts, identify bodies, find cures, and also look for missing people.
Answer:
Explanation:
The primary structure of a protein — its amino acid sequence — drives the folding and intramolecular bonding of the linear amino acid chain, which ultimately determines the protein's unique three-dimensional shape.
Nutrition labels diagram1 - Start with the serving information at the top.
This will tell you the size of a single serving and the total number of servings per container (package).
2 - Next, check total calories per serving and container.
Pay attention to the calories per serving and how many calories you’re really consuming if you eat the whole package. If you double the servings you eat, you double the calories and nutrients.
The next section of information on a nutrition label is about the amounts of specific nutrients in the product.
3 - Limit certain nutrients.
Check key nutrients and understand what you’re looking for. Not all fats are bad , and total sugars can include both natural and added sugars. Limit the amounts of added sugars , saturated fat and sodium you eat, and avoid trans fat. When choosing among different brands or similar products, compare labels and choose foods with less of these nutrients when possible..
4 - Get enough of the beneficial nutrients.
Make sure you get enough of the nutrients your body needs, such as: calcium, choline, dietary fiber, iron, magnesium, potassium, and vitamins A, C, D and E.*
5 - Understand % Daily Value.
The % Daily Value (DV) tells you the percentage of each nutrient in a single serving, in terms of the daily recommended amount. If you want to consume less of a nutrient (such as saturated fat or sodium), choose foods with a lower % DV (5 percent or less). If you want to consume more of a nutrient (such as fiber), choose foods with a higher % DV (20 percent or more).
Here are more tips for getting as much health information as possible from the Nutrition Facts label:
Remember that the information shown in the label is based on a diet of 2,000 calories a day. You may need less or more than 2,000 calories depending upon your age, gender, activity level, and whether you’re trying to lose, gain or maintain your weight.
When the Nutrition Facts label says a food contains “0 g” of trans fat, but includes “partially hydrogenated oil” in the ingredient list, it means the food contains some trans fat, but less than 0.5 grams per serving. So, if you eat more than one serving, you could end up eating too much trans fat.
The U.S. Food and Drug Administration (FDA) regulates the Nutrition Facts label seen on packaged foods and drinks. In 2016, the FDA released changes to the label to make it easier to see how many calories and added sugars are in a product and to make serving sizes more realistic. These changes are still being implemented throughout the food industry, so for now you may see the redesigned version shown here or the old original version.
*Source: 2015-2020 Dietary Guidelines for Americans
