Answer:
Farmers were adding high nitrate levels from many large corn farms along the river. The farmers spray fertilizers that have ammonia and nitrate onto their crops. During the drought, the farmers used extra fertilizer. As rained, the ammonia and nitrate from the fertilizer were washed into the river.
In the pigs produced 10 pounds of feces that contained ammonia and nitrate. The pit is too small to obtain such large amount. When it rained the waste overflowed in to the river.
Explanation:
The drought from the week before and the large rain fall played a large part in the outcome of the annomia and nitrate exposure to water.
The farms upriver were adding to the high nitrate levels. It was because of the excessive use of fertilizers and inadequate waste disposal techniques.
What are agrochemicals?There are chemicals that are used in agriculture. It includes fertilizers, pesticides, nematicides, insecticides, etc.
How does farm upriver add nitrate?The farms upriver used to apply agrochemicals, especially the ones rich in nitrate and urea. During fewer water conditions they used to apply more. That used to remain in the soil and washed down to the river along with the rain.
The farms did not use adequate waste disposal measures and hence the wastes rich in nitrogen were washed down to the river.
Hence, these practices increase nitrate levels in the river.
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What is the pressure at 4000 km below the earth's surface?
A scientist observed that during the course of a chemical reaction the number of ATP molecules were converted into ADP. What did the scientist most likely learn from the observation? a The reaction caused an output of energy. b The reaction produced water. c The reaction consumed water. d The reaction required an input of energy.
Answer:
a The reaction caused an output of energy
Explanation:
Adenosine triphosphate, commonly known as ADP, is an high-energy storage molecule in living cells. It stores and transfers needed energy for metabolic activities. ATP stores its energy in the bonds that hold the phosphate group in its structure. However, the energy is released for use during metabolic processes when the phosphate bond is broken, leading to the release of ADP molecule.
In this case, a scientist observed that during the course of a chemical reaction the number of ATP molecules were converted into ADP. This means that the reaction has caused ATP molecules to release its stored energy i.e. an energy output.
What is Electron Transport Chain and what happens in that stage of cellular respiration?
The electron transport chain (ETC) is the final step of cellular respiration and takes place in the mitochondrion.
The final step in cellular respiration is the electron transport chain. This is sometimes abbreviated as ETC. ETC needs oxygen, which means aerobic process. It occurs at the edges of the inner lining of mitochondria. These handles are called cristae.
Which structure is correctly paired with its function? (1) testis — produces nutrients for the offspring (2) placenta — allows nutrients to diffuse from the mother to the embryo (3) uterus — produces testosterone used in egg production (4) ovary — provides a place for the internal development of the embryo
Answer:
(2) the placenta allows nutrients to diffuse from the mother to the embryo.
Explanation:
The placenta is a shared organ between the mother and the embryo. It diffuses the necessary nutrients from the mother to the future baby and the residues from this one to the mother, so that she can expel them. The placenta separates the mothers and the embryo blood, but it allows the diffusion of said nutrients and wastes through especial parts of the placenta with thin walls.
what gives sperms motility
Answer:
The tail of the sperm, the flagellum
Explanation:
We find cilia in the human body. They coat the epithelial cells of the upper respiratory tract and play a role in keeping dust particles, smog, and potentially harmful microorganisms from entering the lungs.
Their movements enable the movement of mucus or other substances across the surface of various epithelial cells. The cilia also cover parts of the male and female reproductive tract.
Flagella are found in sperm, whose tail represents the flagellum in its structure. The body wall of the sponge, among others, contains cells with whips that create and maintain the flow of water through the body.
A product that is no longer used is said to be _____.
coexisting
current
emerging
obsolete
Answer:
The correxr answer is obsolete
Answer:
the answer is obsolete
Explanation:
obsolute-no longer produced or used
Amylase is an enzyme found in saliva that helps break down starches into glucose. Which of
these statements best describes how amylase starts this reaction?
A. Amylase binds to the glucose to start the reaction.
B. Amylase provides extra energy to start the reaction.
C. Amylase decreases the energy needed to start the reaction.
D. Amylase changes the shape of the starch to start the reaction.
Answer:
Amylase is not the enzyme found in saliva it is ptyalin
Explanation:
the digestion of starch starts in the mouth.
the ptyalin hydrolysis the starch.
Give two examples of what a living thing can do once it has converted the energy from food into usable forms of energy.
Answer:
When the chemical energy in food is transferred to cells in the body, the energy can be transformed into energy used by the body to do many things like run, ride a bike, do the dishes, pump the heart, and keep the body warm.
The chemical energy, which is needed by the organisms comes from the food. Food comprises organic molecules, which captivates energy in their chemical bonds.
• The organisms generally use two kinds of molecules for chemical energy, ATP and glucose.
• Both the molecules are utilized as fuels all through the living world.
• Energy is the tendency to perform an activity. It is required by all the living species and every living cell to perform the processes of life.
• Energy in the form of chemical energy is utilized to dissociate and form the molecules, and to transport several molecules through the cell membranes.
• The organisms primarily use ATP and glucose for energy.
Thus, the form of energy required by the living species to perform the essential activities of life is obtained from food.
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Which facility relies on a nonrenewable source of energy?
Group of answer choices
a wind farm that uses wind turbines
a solar farm that collects sun light
a dam that uses the power of water
a power station that burns coal
The chaparral biome is best characterized by
A) large, contiguous regions of shrubland
B) small regions interspersed with other biomes
C) large noncontiguous regions interspersed with other biomes
D) the animals dwelling in it
E) the plants that grow in it
Pls help ASAP !
I will give brailiest to the first person who can get this question correct
What mushroom is it?
A) parasol mushrooms
B) Shaggy parasol
C) Browned mushrooms
D) Toadstool rusty brown
Answer:
A
Explanation:
I edited. I first put D if that helpes
Answer:
D
Explanation:
The data table below shows how long it takes each inner planet to make one complete rotation and revolution. The numbers listed are in Earth days (24-hour periods).
On which planet is 1 day longer than 1 year?
Answer:
venus
Explanation:
the time taken to rotate is longer than time taken to revolve
PLZ HELP IM TAKING MY EXAM!! which of the following best explains the impact of mrna being double stranded before translation
Answer:
Impact of double-stranded mRNA before translation would inhibit the binding of tRNA to mRNA ti synthesize protein.
Explanation:
The mRNA is a molecule that, with the exception of viruses with double-stranded RNA, has only one chain. It is in charge of conducting to the ribosomes the sequence of nucleotides that makes possible the translation and the synthesis of proteins.
Once the ribosome translates the information of each codon of the mRNA, a transfer RNA (tRNA) molecule, with a complementary anticodon, provides the amino acid corresponding to the translated codon.
If the mRNA were double-stranded, the translation process would be altered, since binding of the tRNA with the amino acid it carries and mRNA codon would not be possible, as well as the protein synthesis.
WHAT IS GOING ON ??????
Pick all of the benefits of mass transit systems
select all that apply.
a-reduces highway congestion.
b-saves energy.
c-reduces air pollution.
d-limit the loss of land to roadways & parking lots.
what are the reasons for a dogs ability to smell
Dogs can detect cancer cells, explosives, drugs, and track and find lost people or animals - all by using the power of their noses and the part of their brain that analyses and processes those scents.
this is what i looked up and got
which of the following is a scientific question A how many centimeters are in a meter B what is the average length of a white pen needle see C what is a good length for my pant legs D how long should I grow my hair
⚠️⚠️⚠️ help please ⚠️⚠️⚠️
Factors such as a person's age, environment, and
lifestyle may
affect the genotype.
affect the phenotype.
affect both genotype and phenotype
affect neither the genotype nor the
phenotype.
O
Answer:
affect the phenotype.
Which is NOT an example of a vestigial
structure?
A. eyes of a blind salamander
B. pelvic bones in a whale
C. thorns on a rose bush
D. wings on a flightless bird
Which of the following is NOT a nitrogenous base?
adenine
thymine
guanine
alanine
Answer:
Explanation:
Alanine is the correct answer
the lowest layer odnbf
Answer: ;-; wut? i- my brain cells you just killed my brain cells in 1 sec i-
Explanation:
Yo can someone help me out
Answer:
hee hee rog
Explanation:
help please thanks This is for Science
Answer:
no he got banned
Ex
planation:
The expected phenotypic ratio of a dihybrid cross is
9:3:3:1
1:2:2:4:2:2:1:1:1
1:1:1:1:1:2:2 1:4:1:1
8:2:4:1:1
Answer:9:3:3:1
Explanation: Just took the test!
Answer:
9:3:3:1
Explanation:
how to get big and all thing
Answer:
hih
Explanation:
what that means what ur talking bout
Answer:
What I'm confused
What will happen if external factors affect cell division in a group of cells placed in a culture dish
Answer:
The effect of an external physical factor on cell division is clearly seen in density-dependent inhibition, a phenomenon in which crowded cells stop dividing. ... When cells have formed a complete single layer, they stop dividing (density-dependent inhibition).
Explanation:
The light dependent reaction requires energy from the sun. What other reactant does this reaction require
Joan saw a mushroom growing on the stump of a dead tree. What would Joan infer about the role of the mushroom
Is this rock Felsic or Mafic or
In between
Describe the relationship between blood, tissue, fluid and lymph
Answer:
Nutrients such as glucose and amino acids as well as oxygen are pushed out from the blood into the tissue fluid. The rest of the fluid is collected by the lymphatic system. The lymph is similar to the tissue fluid. This is the relationship between tissue fluid and lymph.
Explanation: