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.
To learn more about agrochemicals and fertilizers here,
https://brainly.com/question/16259315
#SPJ2
Can someone please help me this is Biology in 7th Grade
lol pls help i really need help
In the graph below, which letter represents the activation energy of a catalyzed reaction and why?
Choose 1 answer:
(Choice A) Y; the activation energy is reduced in a catalyzed reaction
(Choice B) X; the activation energy is greater in a catalyzed reaction
(Choice C) X; the activation energy is greater in an uncatalyzed reaction
(Choice D) Y; the activation energy is greater in an uncatalyzed reaction
Report a problem
Answer: Choice C) X; the activation energy is greater in an uncatalyzed reaction
Explanation: I got this question on khan academy.
The option that represents the activation energy of a catalyzed reaction is C. X; the activation energy is greater in an uncatalyzed reaction.
Activation energy simply means the minimum amount of energy that should be provided for compounds that'll result in a chemical reaction.
It should be noted that the activation energy for uncatalyzed conversion to the products will be more than that of the catalyzed reaction. In this case, X; the activation energy is greater in an uncatalyzed reaction.
Read related link on:
https://brainly.com/question/19522206
When grey wolves were reintroduced back into Yellowstone
Answer:
1995
Explanation:
Grey wolf packs were reintroduced to Yellowstone National Park and Idaho starting in 1995.
hope it helpful
Fill in the missing mRNA bases sequence that corresponds to the DNA base sequence - CAC GTG GAC TGA
Fill in the missing amino acid sequence that corresponds to the DNA base sequence CAC GTG GAC TGA
Answer:
mRNA: GUG CAC CUG ACU
amino acids: VAL HIS LEU THR
Explanation:
The missing RNA base sequence to the DNA base sequence: CAC GTG GAC TGA is GUG CAC CUG ACU respectively.
The missing amino acids to the DNA base sequence CAC GTG GAC TGA is VAL HIS LEU THR respectively.
What are amino acids?Amino acids are organic compounds made up of amino and carboxylic groups.
Amino acids are the primary building blocks of protein.
There are 20 amino acids are present.
Thus, The missing RNA base sequence to the DNA base sequence: CAC GTG GAC TGA is GUG CAC CUG ACU respectively.
The missing amino acids to the DNA base sequence CAC GTG GAC TGA is VAL HIS LEU THR respectively.
Learn more about amino acids, here:
https://brainly.com/question/15823799
The advantage of having large vertebrae at the base of the vertebral column is having stability in terms of the center of gravity of the person
Answer:
what grade are u in?
Explanation:
list the symbol for lipids
Answer:
Carbon, Hydrogen and Oxygen. So the symbol is CHO.
Explanation:
Large reefs are thousands of years old. True or false identify if it is false
Answer:
True
Explanation:
y e s .
A cross section of a seed is shown.
Which is represented by the letter X?
embryo
seed coat
stored food
leaf
Answer:
Embryo
Explanation:
I took the text
Answer:
embryo
Explanation:
What cellular process does a mitochondrion perform for the cell?
Answer:
Cellular Respiration.
Explanation:
distinguish between a mixture and solution
Answer:
In mixtures substances are mixed. While in Solutions substances are dissolved.
Explanation:
in mixtures substances arent typically dissolved they are combined or mixed. in a solution those substances dissolve.
Why immobilized enzymes are widely used in industry? Explain, please
Answer:
just go with your instincts
Bart thinks mice exposed to microwaves will get stronger (maybe he's been reading too much Radioactive Man). You decide to perform this experiment by placing 10 mice in a microwave for 10 seconds. He compared these 10 mice to 10 other mice that had not been exposed. His test consisted of a heavy block of wood that blocked the mouse's food. found that 8 out of 10 of the microwave mice were able to push the block. 7 out of 10 of the mice without microwaves were able to do the same.
identify
1. control group
2. independent variable
3. dependent variable
4. what are some of the mentioned control variables?
5. what should bart's conclusion be?
Answer:
Control group = mice that had not been exposed
Independent variable = Mice receiving radiation
Dependent variable = Number of mice that are able to push the block of wood.
Control variables = Health of mice, mass of block
Radiation does not have effect on strength of the mice
Explanation:
In an experiment the variable which changes with respect to the other variable is called the dependent variable and the other variable is called the independent variable.
The control group is the group that does not receive treatment which is used to compare the effect of the treatment.
The control variable is another variable that must be held constant when performing the experiment.
Here the
Control group = mice that had not been exposed
Independent variable = Mice receiving radiation
Dependent variable = Number of mice that are able to push the block of wood.
Control variables = Health of mice, mass of block
It was found that 8 out of 10 of the microwave mice were able to push the block. 7 out of 10 of the mice without microwaves were able to do the same. This means that there was no significant difference hence, the conclusion drawn should be that radiation does not have any effect on their strength.
. Which of the following describes the healthiest ecosystem? *
a. An ecosystem that has low biodiversity
b. An ecosystem that has high biodiversity
c. An ecosystem that has many more producers than any other trophic level
d. An ecosystem that has many more herbivores than any other trophic level
e. Answers B and C
Answer:
The Answer is E. Answers B and C
Explanation:
Answer:
e) Answers B and C
Explanation:
aka the 5th option
A cell removes a toxin it has produced through a chemical reaction. Which characteristic of living things is the cell demonstrating?
the ability to maintain homeostasis
the ability to maintain homeostasis
the ability to grow and develop
the ability to grow and develop
the ability to adapt and evolve
the ability to adapt and evolve
the ability to reproduce
Answer:
Sweating helps the human body maintain homeostasis by cooling the body when it starts to overheat so the internal temperature is kept more or less the same. When sweat evaporates from the skin, it uses up some of the excess heat energy on the skin, thus helping to keep the body cool.
According to cell theory, all living things are made of cells, and living cells come only from other living cells. Gene theory states that the characteristics of living things are controlled by genes, which are passed from parents to their offspring.
Sample answer: The concentration of oxygen in the atmosphere is maintained at 21 percent by a balance between two opposing processes: removal of oxygen from the atmosphere by most living things and addition of oxygen to the atmosphere by living things such as plants.
Sample answer: The human ability to sweat is an adaptation that helps maintain homeostasis in a hot environment by removing heat from the body when it evaporates. Like other adaptations, the ability to maintain homeostasis by sweating evolved by natural selection sometime in our evolutionary past.
a. Gene theory
b. Homeostasis
B
An adaptation is a trait that helps a living thing survive and reproduce in a given environment. Sample example. The chameleon’s ability to change color to match their background is an adaptation.
False
False
Humans began life as a single cell because we develop from a fertilized egg cell.
Gene theory states that genes are passed down from parents to their offspring. Genes determine the characteristics or traits of an organism. If these traits are particularly beneficial or adaptive, natural selection will cause the organisms with beneficial traits to produce more offspring compared to those without the beneficial traits. This results in a change in traits over time, which is called evolution.
No. Evolution is defined as a change in the characteristics of living things over time. Evolution through natural selection causes differences in the amount of offspring produced. Having offspring (or not) is, by definition, more than one generation.
Sample answer. I think that when ancestors of chameleons could change their color to match their background, they were less likely to be detected and killed by predators than those that couldn’t change their color. Therefore, the individuals that had the color matching ability were more likely to survive and reproduce than those that didn’t. This is an example of natural selection. Over time, this led to the population evolving the color changing ability, as those that didn’t have the ability died out.
Explanation:
i hope this helped you
Please Help!!! Which two body systems are most affected when a person is participating in a long jump?
A. endocrine and digestive
B. endocrine and muscular
C. skeletal and digestive
D. skeletal and muscular
The two-body systems that are most affected when a person is participating in a long-jump are skeletal and muscular (Option D).
The muscular system is composed of three different types of muscles: smooth muscle, cardiac muscle and skeletal muscle.The skeletal muscles are muscles responsible for controlling voluntary movements (e.g., jump) and they are attached to the skeleton by a type of connective tissue known as tendon.The skeletal system is composed of all bones of the body and they are responsible to provide support and protection to the internal organs.In conclusion, the two-body systems that are most affected when a person is participating in a long-jump are skeletal and muscular (Option D).
Learn more in:
https://brainly.com/question/1283837
Write a paragraph that explains the increase and how technologies that have appeared over
the past 100 years may have contributed to the increase or may have prevented more
significant increases in greenhouse gas levels.
Answer:
Mar 4, 2011 — Past changes in Earth's temperature happened very slowly, over ... Human activities contribute to global warming by increasing the greenhouse effect. ... Emissions of carbon dioxide, the most important greenhouse gas, ... Even slight rises in average global temperatures can have huge effects. ... 100 years.
Explanation:
Which group makes up the largest level of a trophic level pyramid?
Answer:
primary producers
Explanation:
np ;)
Is this rock Felsic or Mafic or
In between
What is the chemical equation that shows the dehydration synthesis that creates the following
triglyceride? Two of the fatty acids are С6H12O2 and the third is C5H8O2.
2CH3-CH2-CH2-CH2-CH2-COOH + CH3-CH=CH-CH2-COOH
+ OH-CH2-CH(OH)-CH2-OH-->
If a pure-bred tall plant is crossed with a pure-bred short plant, the offspring will be:
a. Either tall or short
b. All offspring will be medium sized.
c. Some offspring will be tall, some will be short and some will be medium sized.
how many atp are produced by cellular respiration of one molecule of glucose?
Answer:
38 ATP.
Explanation:
Biology textbooks often state that 38 ATP molecules can be made per oxidized glucose molecule during cellular respiration (2 from glycolysis, 2 from the Krebs cycle, and about 34 from the electron transport system).
How is energy related to the change of state represented by the model?
A. Atoms gain energy as a gas changes in a solid.
B. Atoms gain energy as a gas changes in a liquid.
C. Atoms lose energy as a gas changes in a solid.
D. Atoms lose energy as a gas changes in a liquid.
Answer:
C.
Explanation:
Atoms lose energy as a gas changes in a solid
hope it helps!
What is the answer to this question
Answer:
C
Explanation:
Because chromosomes come in pairs, if they weren't in pairs you'd have 46, but since they arent separated its 23. So, the answer is Homologous pairs
Hope this helps!
Please actually answer the question i need the answer, i'll give brainliest!!!!
A city is located in an area that has experienced 7.5-magnitude earthquakes in the past.
The city is considering building a new skyscraper.
Use the earthquake magnitude scale to predict the amount and type of damage residents should expect from future earthquakes of similar magnitude.
Then suggest a way to minimize the effects of future earthquakes on the skyscraper.
How Fast can you answer how fast can i give you brainliest????? HELP...
Answer:
Explanation:
I think it's b or d may a
Answer:
The answer is C: Pond
Explanation:
its definition is the closest to the question: a small body of still water formed naturally or by hollowing or embanking.
I deeply apologize if this is incorrect.
I hope this helped and if it did I would appreciate it if you marked em Brainliest. Thank you and have a nice day!
BRAINLIEST IF CORRECT I NEED HELP FOR BETTER GRADES 65 POINTS
Which of the following is not a part of a vascular plant?
A.stem
B.roots
C.rhizoids
D.leaf
Answer:
rhizoids are not part of a vascular plant
WILL GIVE BRAINLIEST!!!!!
_?_ are found in all metabolically active cells and are involved primarily in transporting materials within, into, and out of cells.
Vesicles
Ribosomes
Lysosomes
Vacuoles
Answer:
Vesicles
Explanation:
Match the type of metamorphism to its cause.
Answer:
Contact - Heat
Dynamic - Directed Pressure
Impact - Meteorite
Regional - Surrounding
Which of the following is an example of genetic engineering?
The sweetest honeydew melons are selected and the seeds extracted and planted for next year’s crop.
The strongest animals in a population survive and reproduce.
An exact replica of a frog is created from a body cell.
A gene is introduced into salmon to make them grow twice as fast.