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2 years ago

Which of the following is an example of primary waste prevention?

Biology

2 answers:

zmey [24]2 years ago

4 0

The correct option is B, that is, A FAMILY DONATES USED CLOTHING TO A SECOND HAND STORE.

Waste prevention has to do with the process and practice of reducing the amount of wastes products in order to produce a more sustainable environment. Waste prevention can also be called recycling. There are three types of waste prevention, these are primary, secondary and tertiary waste prevention / recycling.

Primary waste prevention refers to a situation in which the material to be disposed is not changed in anyway, before been reused. Such material can be given to friend or donated to a charity organization. The material is always used for the same purpose as the original use.

Secondary waste prevention involves some kind of modifications while tertiary waste prevention usually involves the use of chemicals and heat.

Verdich [7]2 years ago

4 0

Answer:

A factory finds a way to produce 25 percent less packaging waste when it ships materials.

Explanation:

***verified answer***

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Evidence suggests that first, ____________ were acquired when an aerobic bacterium was engulfed by larger cells and became mutua

leonid [27]

Answer:

1. Mitochondria

2. Chloroplast

3. the formation of eukaryotic cells

4. DNA

Explanation:

The theory of endosymbiosis was proposed by the Lynn Margulis in 1967 which suggested that the eukaryotic organelles like the mitochondria and chloroplast evolved when another prokaryotic cell engulfed the prokaryotic bacteria.

The mitochondria were formed when the chemosynthetic bacteria were engulfed by the bacteria and the engulfed bacteria formed a symbiotic relationship. Similarly, the chloroplast was originated in the same way when the photosynthetic bacteria were engulfed by another prokaryote.

The evidence which supports their ar:

1. The same size of the organelles to the bacteria

2. The presence of the circular DNA of the organelles like bacteria

3. The similarity in the 30s and 70s ribosomal subunits.

7 0

2 years ago

Read 2 more answers

Find the mean, median, and mode of the following list of values. Round to the nearest tenth if necessary.

grin007 [14]

Answer:

D.

Mean: 24.8

Median: 26

Mode: 26

Explanation:

The mean is the average. To find the average, add up all the numbers and divide by the amount of numbers there are.

30 + 26 + 25 + 11 + 34 + 20 + 26 + 26 = 198

Now, we divide by how many numbers we started out with (8).

198 divided by 8 = 24.75, rounded would be 24.8

To find the median, you arrange the numbers from smallest to largest, and find the middle number like this:

11, 20, 25, 26, 26, 26, 30, 34

As you can see, the middle number is 26.

To find the mode, you arrange the number from smallest to largest, and find the number that appears more often.

11, 20, 25, 26, 26, 26, 30, 34

As you can see, the number 26 appears the most often.

So, we end up with:

Mean: 24.8

Median: 26

Mode: 26

3 0

1 year ago

Increasing sea surface temperatures should...

konstantin123 [22]

Answer: they are all correct so select all

Explanation:

bc i did it and bc i said so

7 0

2 years ago

A population of 288 cichlids lives in a lake with ample food, oxygen, and shelter. Over the course of one year, 375 new cichlids

zimovet [89]

Answer:588

Explanation:

4 0

3 years ago

The testcross makes it possible to determine the genotype of an individual of unknown genotype who exhibits the dominant version

klio [65]

Answer:

All of the above answer choices are correct.

Explanation:

Test cross is done to find out the genotype of an individual displaying dominant phenotype as it can be homozygous or heterozygous. To find this the individual is crossed with a recessive phenotype individual. For example: a dominant trait tall height can be homozygous TT or heterozygous Tt. If it is TT all the offspring of test cross with tt will be tall. If it is Tt half of the offspring will be tall and half of the offspring will be short.

Multiple offspring are required to come to the final result because offspring production happens in random order and it might take a few tries before another type of phenotype is produced. For example: If a test cross produces an individual with dominant phenotype we can still not surely say if the test individual is homozygous or heterozygous because both can produce dominant phenotype in test cross. We need more offspring to check if the recessive phenotype is produced or not and accordingly decide the genotype of test individual.

Hence all of the above answer choices are correct.

6 0

2 years ago