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4 years ago

Why are fertilizers bad?

1 answer:

6 0

Most fertilizers contains a harmful chemical combination including the elements, phosphorus, nitrogen, and potassium. Although they can shoo or kill harmful insects away, they can also harm humans. You see, if something is strong enough to kill insects, consuming even a small amount of it through careless washing can transmit the chemical from the fertilizer to our body. Unfortunately, many companies nowadays use waste for making fertilizers. Dirty, harmful materials that belongs in the sewers may end up in fertilizers. Although this may be annoying and take more time, it is important to check the ingredients in your fertilizers.

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What are the four types of macromolecules, their bulding blocks, and their main functions?

OleMash [197]

Carbohydrates: Molecules that provide energy/ fuel and build structures in the body. Example: Sugar. Starch, Cellulose. Building Blocks. Monosaccharides

Lipids:Molecules that store energy and regulate the body's metabolic processes. Building Block: Fatty Acids and Glycerol. Examples: Fats, Steroids, Cholesterol

Proteins: Molecules that provide structural support, cell communication, storage transport, movement, and defense. Building Block: Amino Acids Examples: Enzymes, Structural Components

Nucleic Acids: Molecules that enable living organisms to reproduce genetic information and pass them from one generation to another. Building Blocks: Nucleotides. Examples: DNA and RNA Building Blocks:

8 0

3 years ago

Halp meh pleaseeeeeee

ad-work [718]

Answer:

I think it's the third option

Explanation:

3 0

3 years ago

ASAP!! I WILL MARK YOU BRAINLIEST!!! I JUST NEED THE ANSWER!!! How are photosynthesis and cellular respiration related?

nydimaria [60]

The both add CO2 to the atmosphere

5 0

3 years ago

Which of the following organelles can be found in the cytoplasm and in the surface of the ER

sammy [17]

Is there an answer choice of ribosomes? Those are the organelles that make protein that are in the cytoplasm and what makes the Rough ER "rough".

3 0

4 years ago

The cross over frequency between linked genes C and D is 40%; between A and D is 35%; between C and A is 5%; between A and E is

nlexa [21]

Answer: The first line shows the Correct order of genes in the chromosome and the second and third lines show the distances between genes.

C ------------ A ---------------------------------- E -------------------- D (Correct order)

/-----5MU--//---------------25 MU-----------//---------10MU-----/ (Distances)

/------------------------------------40 MU ------------------------------/ (Total distance)

Explanation:

We need to know that 1% of recombination frequency = 1 map unit = 1cm. And that the maximum recombination frequency is always 50%.

The map unit is the distance between the pair of genes for which every 100 meiotic products, one results in a recombinant one.

The recombination frequencies between two genes determine their distance in the chromosome, measured in map units. So, if we know the recombination frequencies, we can calculate distances between the four genes in the problem and we can figure the genes order out. This is:

Recombination frequencies:

1% of recombination frequency = 1 map unit (MU)

C-D = 40% = 40 MU

A-D = 35% = 35 MU

C-A = 5% = 5 MU

A-E = 25% = 25 MU

E-D = 10% = 10 MU

Now that we know the distances between pairs of genes, we need to figure out which is the correct order in the chromosome.

C and D are the genes with the biggest distance between them (40MU), which probably means they are in the extremes. The rest of the genes are in the middle.

C ------------------ (40MU) --------------------------------------- D

A is 5 MU apart from C and 35 MU apart from D, which means it is closer to C.

C------ (5MU)----A------------------------------(35 MU)-------D

E is 25 MU apart from A and only 10 MU apart from D, which means it is between A and D, and closer to D

C--------------------A------- (25 MU)---------E----(10MU)-----D

The sum of C-A distance + A-E distance + E-D distance equals the C-D distance. This is:

C-A 5MU + A-E 25MU + E-D 10MU = C-D 40 MU

5 + 25 + 10 = 40

In conclusion, the correct order of the genes in the chromosome is

C ------------ A ---------------------------------- E -------------------- D

/-----5MU--//---------------25 MU-----------//---------10MU-----/

/------------------------------------40 MU ------------------------------/

8 0

3 years ago