Which substance is harmful in drinking water at any amount?

A) Nitrates
B) Pesticides
C) Charcoal
D) Coliform Bacteria

Answers

Answer 1

Answer:

B

Explanation:

Its a poison stay away from it no matter how much it is

Answer 2
The answer should be a or b .

Related Questions

If the mRNA codon is CCA, what should be the tRNA anticodon be? And Which amino acid does this make?

Answers

Answer:

GGU i think

Explanation:

GGU because it cannot have a T so C pairs with G and A pairs with U in this case

Which feature forms at Earth’s surface from the cooling of lava

Answers

Extrusive rocks form at Earth’s surface from the cooling of lava.

PLZZZ HELP!!! I NEED HELP DESPERATELY!!
What is the gain of FADH₂ per pyruvic acid in the citric acid cycle?

Answers

Three NADH I believe and one FADH2 molecules if this is wrong let me know

Why is there Cholesterol in your cell membrane?

Answers

Answer:

Cholesterol functions to immobilise the outer surface of the membrane, reducing fluidity. It makes the membrane less permeable to very small water-soluble molecules that would otherwise freely cross. It functions to separate phospholipid tails and so prevent crystallisation of the membrane.

Explanation:

Cholesterol functions to immobilise the outer surface of the membrane, reducing fluidity. It makes the membrane less permeable to very small water-soluble molecules that would otherwise freely cross. It functions to separate phospholipid tails and so prevent crystallisation of the membrane.

It helps to restrict the passage of molecules. Since it is small, it can work to fit and block off water soluble molecules from diffusing into the membrane.

what are the 3 major purposes for the cell cycle

Answers

Cell division has three main functions which are reproduction of unicellular organisms and the production of gametes and growth in eukaryotes.

which statement accurately describes bioaccumulation:
1) a substance, such as a pesticide, collects in the body of an organism over time.
2) the concentration of a substance increases as it moves up the food chain
3) a method to get rid of an invasive species in an ecosystem
4) pesticides in the soil, air and water become sources of pollution.

Answers

Answer: 1

Explanation:

I think its the first one because I learned this before and the first one seems reasonable


In your own words, define or describe what you
already know about photosynthesis?

Answers

Answer: Okay so Photosythesis is the process used in most plants (except carnivorus plants) when the plant uses its chroloplasts (cells only plants have) to convert sunlight into sugar which makes food for the plant so it can live without having to hunt for food.

Explanation:

I hope this helps sorry if it doesn't :(

Have a good day :)

Stay motivated :)

Answer:

Photosynthesis is the process used by plants, algae, and certain bacteria to convert the energy from sunlight (or other usable light sources) into chemical energy. Chemical energy is the energy these organisms use for different metabolic processes. During this process, they take in the carbon dioxide produced by all breathing organisms and release oxygen, which we breathe in once again, into the atmosphere.

Which molecule can freely diffuse through the cell membrane?

Oxygen

Nitrogen

Hydrogen

Glucose

Answers

nitrogen



explanation:
It would be nitrogen

On the periodic table, the elements known as noble gases are all found in?

Answers

Answer:

Period 18

Explanation:

It also in group 0

Answer:

Period 18

Explanation:

ik it is trust me

how many codons equal one amino acid

Answers

Explanation:

hope the answer was helpful

Three codons equal one amino acid

CODON:

A codon is a nucleotide sequence consisting of three bases. The genetic code is read in a group of three nucleotide bases at a time, which are called codons.

Each codon encodes an amino acid. For example, codon AUG encodes methionine amino acid.

Each codon is read during translation to form an amino acid sequence. This means that the number of codons in a mRNA (nucleic acid) sequence determines the number of amino acids in a sequence.

Therefore, three codons equal one amino acid.

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Which of the following is a description of trait of a country with a high
carrying capacity?
O A. Food grown on land near homes
B. Spending hours per day collecting water
C. Easy access to safe drinking water
O D. Very little access to refrigeration
SOMEONE PLEASE HELP ME IM STUCK ON THIS PLEASEEEE

Answers

The correct answer is D

Answer:easy access to safe drinking water

Explanation:

What is Cellular Respiration and what is the formula for it?

Answers

Answer:

Summary. Aerobic respiration is the aerobic catabolism of nutrients to carbon dioxide, water, and energy, and involves an electron transport system in which molecular oxygen is the final electron acceptor. The overall reaction is: C6H12O6 + 6O2 yields 6CO2 + 6H2O + energy (as ATP).

Explanation:

i said it first

Cellular respiration is the process in which the cells convert sugars into energy. The formula for cellular respiration is: C6H12O6+6O2>6CO2+6H2O

what is not a characteristic of life?
•obtaining and using energy
•maintaining homesostasis
•having cells
•movement​

Answers

Movement because plants don't move and animals aren't miving constantly

Whitch part of the cells help keep all its pieces together

Answers

Answer:

Cytoplasm

Explanation:

Similarities in Aemoba and Humans

Answers

Answer:

Both Amoeba and human beings are heterotrophs and derive nutrition from other organisms. Dissimilarity: Human beings have a complex digestive system and different nutrients are digested in separate regions. Amoeba does not have a digestive system and all the nutrients are digested in the food vacuole.

enzymes are an example of which main class of organic compounds.
(carbohydrates, lipids, proteins, or nucleic acids

Answers

Answer:

Proteins

Explanation:

Enzymes are an example of a class of organic compounds called proteins.

PROTEINS:

Proteins are one of the four major biological molecules in nature (others being carbohydrates, lipids and nucleic acids).

Proteins play vital roles in living organisms, which includes regulating biochemical reactions, repair of structures etc.

Enzymes are biological catalysts that helps to regulate the rate of a reaction. Enzymes are proteinous in nature i.e. they are made of proteins.

Therefore, enzymes are an example of a class of organic compounds called proteins.

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I will give brainiest to who answer please fast

Answers

Answer:

i dont understand

Explanation:

its too complex i will edit my answer i you tell me more bout dis

Describe the two stage life cycle of plants: the gemetophyte stage and the sopophyte stage

Answers

Plants have what is called an alternation of generations in their life cycle. The two stages are called the sporophyte generation and the gametophyte generation. The sporophyte generation is diploid (has pairs of chromosomes). It produces spores by meiosis (reduction division), so the spores are haploid (contain only one chromosome from each pair). The spores divide by mitosis to produce a multicellular, haploid gametophyte generation. The gametophyte produces gametes (by mitosis) which fuse during fertilization to form a diploid zygote. This then develops into the sporophyte, completing the life cycle.

Please help :( this is a really complicated question

Answers

Answer:

B. exponential growth.

Explanation:

Since the conditions are ideal and the reproducing organisms increase in numbers with every generation this means that it is exponentially growing. It can't be carrying capacity. It is not a logistic growth. And they don't have competition here so it can't be competition.

Nitrogen in the atmosphere exists in the form of _____.


NO2

NO3-

NH4+

N2

NH3

Answers

Answer:

N2

Explanation:

Although the atmosphere is mostly made up of nitrogen, it is in the form of a gas known as dinitrogen N2. Plants cannot use this form. Dinitrogen, or atmospheric nitrogen, can also be found in the soil. In addition to dinitrogen, other inorganic and organic forms exist in the soil as well.

In the atmosphere, nitrogen exists as a gas (N2)

Which of the following is the study of the chemistry of living things?
Biology
Geology
Physics
Organic Chemistry

Answers

Answer:

organic chemistry I believe so

Explanation:

good luck

Answer:

Organic Chemistry

Explanation:

look at the picture for question

Answers

Answer:its the second one mate

Explanation:

which statement about the continental drift theory is untrue ?

Answers

Answer:

your right

Explanation:

Answer:

number 4 or D

Explanation:

the plates still shift to this day

PLEASE HELP!!!! 20 POINTS!!!!
Which event can cause slumps, landslides, and mudflows to occur?

earthquakes
hurricanes
snowfalls
thunderstorms

Answers

Answer:

earthquakes

Explanation:

Answer:

earthquakes

Explanation:

because it is muddy

In mice, there are three options for fur color: black,grey and white. What type of inheritance is shown by these mice?

A. Simple
B. Co-dominance
C. Incomplete dominance
D. Sex linked inheritance

Answers

Answer:

C. Incomplete dominance

Explanation:

Incomplete dominance is a type of non-mendelian inheritance in which one allele does not completely mask the phenotypic expression of the other allele in a gene, hence, the blending of both alleles give rise to an intermediate third phenotype.

According to this question, there are three options for fur color in mice namely: black, grey and white. This is so because the alleles for black and white coloration exhibits INCOMPLETE DOMINANCE, hence, they produce a third phenotype (grey) that is a blend of both parental phenotypes.

Please help
DNA provides

A
storage for cellular waste.
B
a structure for the shape of each cell.
C
nutrients for the cell.
D
the genetic material of living organisms.

Answers

Answer:

D. the genetic material of living organisms

Explanation:

Is the pH of Claire's small intestine below, within, or above the optimal range of each enzymes?

Answers

Answer: Protease is within

Lipase is within

Carbohydrase is within

Explanation:

Because a pH of 9.1 is within the green area for every graph, Claire’s pH is within the optimal range for every enzyme.

Which statement explains a difference between a cell wall and a cell membrane?

Answers

Cell membrane protects a wall, and cell wall doesn’t

How much energy is used by the organism or lost to the environment as heat between trophic levels

10% or 90%

Answers

90% of the energy is lost to the environment as heat and only 10% is transferred per trophic level

Which of these Earth spheres interacts with coral reefs to cause coral bleaching?

Atmosphere
Cryosphere
Geosphere
Hydrosphere

Answers

I think it’s atmosphere but don’t hold me to it I know for sure it’s no Hydrosphere

Answer: Atmosphere

Took the test

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