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cestrela7 [59]
2 years ago
11

SAQ-1:How do you take care of your own clothes

Biology
2 answers:
In-s [12.5K]2 years ago
6 0
Buy fabrics that are durable.
Wash less frequently.
Fold clothes along the seams,
Let everything air out. The elastic needs to relax. ...
Learn basic repairs. ...
Avoid Ironing.
Empty your pockets. ...
Close zippers and other fasteners to prevent snagging.
liq [111]2 years ago
6 0
These basic personal hygiene habits:
Bathe regularly. Wash your body and your hair often. ...
Trim your nails. ...
Brush and floss. ...
Wash your hands. ...
Sleep tight.
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What is the structure of nucleus
Shalnov [3]
The nucleus is an organelle found ineukaryotic cells. Inside its fully enclosed nuclear membrane, it contains the majority of the cell's genetic material. This material is organized as DNA molecules, along with a variety of proteins, to form chromosomes.

7 0
3 years ago
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A person who is genetically predisposed to be obese cannot improve his or her overall health through moderate lifestyle changes.
serious [3.7K]
Answer: False
<span>Genes do play a role in the development of obesity but a genetically predisposed person can still improve his overall health through moderate lifestyle changes.</span>

<span>Obese people may change their weight slowly by altering lifestyle habits with the support of their family and friends. Even if weight remains unchanged, overall health will improve with moderate lifestyle changes.</span>


3 0
3 years ago
Why would it be expected that a swordfish would exhibit higher methyl mercury levels than a tilapia? (site 2)
kirill [66]

Answer:

Answer is explained below;

Explanation:

Mercury is a liquid metal that is released into the environment by both natural processes such as volcanic activity, weathering of rocks, etc and human activities such as waste materials from factories. The mercury that reaches the ocean and other water sources is converted into methylmercury by bacteria. Methylmercury is a neurotoxin that interferes with the nervous system and is easily absorbed by the human body.

The methylmercury is taken up by planktons. Small fishes consume large quantities of plankton. Tilapia is a small, short-lived freshwater fish. The methylmercury level in tilapia is lower than that of other fish. When large, long-living predatory fishes such as tuna, shark, king mackerel, swordfish, etc consume many smaller fish with low mercury levels, this causes accumulation of methylmercury at extremely high levels in their tissues over time i.e., the amount of mercury in such bigger fish biomagnifies.  

So large, long-lived predators like swordfish and shark often have the highest methyl mercury levels than a small, short-lived tilapia.

3 0
2 years ago
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Maintaining the integrity of the stock reagents is a constant concern in the lab environment. Read the situations and decide if
Anarel [89]

Answer:

Question is incomplete i have added full question at the end of this answer because im not able to add it in ask for detail section.

Answer:

1. Contaminate (Because NaOH is a base while H2SO4 is an acid. If student mix both this will result in chemical reaction.)

2. Contaminate (Because returning regents  are used already id used regents put back in the bottle it will contaminate the fresh reagents.)

3. Contaminate (Using same spatula without sanitation results in mixing of one reagent into other regents which results in failure of experiments.)

4. Does Not Contaminate (It does not have any effect on the reagent because solid reagents are weighted that can be cleaned off when poured into reaction flask.)

5. Does Not Contaminate (Because washing flask after each experiment will wash off the left reagents present in flask.)

6. Contaminate (This will result in contamination because potassium iodide (KI) solution will be mixed with waste)

FULL QUESTION

Maintaining the integrity of the stock reagents is a constant concern in the lab environment. Read the following situations and decide if each represents a valid contamination concern.

1. A student uses a pipet designated for the NaOH solution to pipet the H2SO4 solution.

2. Several students have left-over reagents after the completion of an experiment and decide to return the excess reagents to their original containers.

3. Only one spatula is available to measure out several different white powders.

4.Rather than wasting multiple weigh boats, a student decides to wash and dry a single weigh boat in-between uses.

5. A group of students must use the same 500 mL volumetric flask to make solutions. Between each use they wash and dry the flask.

6. At the end of the day, the waste bottle is so full that a student decides to dump his waste into an almost empty bottle of stock KI solution.

3 0
3 years ago
Cellular respiration
BaLLatris [955]
Cellular respiration is known as <span>a set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate.</span>
3 0
3 years ago
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