1. How has freshwater been threatened around the world?
2. What are ways freshwater is becoming polluted?
3. How does polluted water affect the ecosystem? Describe all ways.
4. What are ways freshwater can be used for besides drinking?

U don’t have to answerrrr all, just help me with whatever u can !! :)

Answers

Answer 1
freshwater has been threatened by human beings a lot of times. humans have thrown oil or trash into freshwater.polluted water for animals could be harmful for them and also trash being thrown into freshwater could make an animal get stuck on it.

Related Questions


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Answers

DNA is a complex molecule that contains all of the information necessary to build and maintain an organism.

Answer:

Deoxyribonucleic Acid [DNA]

Explanation:

DNA, is a complex molecule that contains all of the information necessary to build and maintain an organism.

viruses are a chain between living and nonliving beings . they are obligatory paracites and have either RNA or DNA .

Which level of organization is shown in the diagram?

Answers

Answer:

which diagram, tell

you haven't shown any diagram.

Answer:

Organ

Explanation:

This Is For Edgennuity  Q:10

In non-muscle cells, a small increase in the cytosolic concentration of Ca2 can have a dramatic effect on several physiological processes. The presence of a specific protein in the cytosol, however, activates a Ca2 ATPase that serves to return these elevated cytosolic Ca2 levels back to basal levels, thereby maintaining the cell's normal physiology. Which protein is directly involved in activating this Ca2 ATPase

Answers

Answer:

calmodulin

Explanation:

The calcium-modulated protein (calmodulin) is a calcium-binding receptor protein that modulates contractile proteins (i.e., actin and myosin proteins) of the skeletal muscle and non-muscle cells (e.g., platelets). Calmodulin binds to calcium ions (Ca2+) and subsequently activates a number of Ca2+ dependent enzymes (e.g., kinases or phosphatases), which finally activate/deactivate proteins in the calcium signal transduction pathway. Ca2+-ATPase pumps in the membranes of eukaryotic cells release Ca2+ from the cytoplasm and they are autoinhibited by low Ca2+ levels, while calmodulin-binding releases this autoinhibition and thus activates the pumps. In non-muscle cells such as platelets, calmodulin also mediates Ca2+ control of actin-myosin interaction by phosphorylation of the myosin light chain (MLC).

How do antibodies fight pathogens

Answers

Answer:

1) Antibodies are secreted into the blood and mucosa, where they bind to and inactivate foreign substances such as pathogens and toxins (neutralization).

2) Antibodies activate the complement system to destroy bacterial cells by lysis (punching holes in the cell wall).

Mike has a problem with his testosterone. He is unable to produce enough. Which will most likely be affected by his inability to produce testosterone? Select two options.

Answers

Answer:

Fruits will be a great choice. Such as strawberries.

Explanation:

An epistatic allele in labrador retrievers ensures that ee lab pups are yellow. Two other alleles control coat color, where black is dominant to brown. What portion of yellow pups would you expect from a parental cross where one parent was yellow (Bbee) and the other was heterozygous

Answers

Answer:

1/4

Explanation:

Epistasis is defined as a phenomenon in a genetics where the effect of the gene mutation which dependent on the absence or the presence of the mutation in more than one genes.

In the context, an epistatic allele in the Labrador retrievers which ensures the ee lab pups that are yellow and the two other alleles which control coat color are black that is dominant to the brown.

Thus, 1/4 portion of the yellow pups would expect from the parental cross where one of the parent is yellow (Bbee) and the other is heterozygous.

Thus the answer is 1/4.

Identify two processes that from igneous rocks

Answers

Answer: Igneous rocks are formed by the melting and cooling of molten rock.

Explanation: Extrusive rocks are those that erupt as lava from volcanoes onto the surface. Intrusive rocks, on the other hand, are created when magma cools underneath.

hope this helps best of luck mate! :)

Many functions in the body are controlled by
special compounds. Which statements about
these compounds do you think are true? Check
all that apply.
The body can make all of the compounds it
needs.
.
The body gets energy from some
compounds.
um
Some compounds determine physical
characteristics.

Answers

Answer:

Its either a or b

Explanation:

A say the body can make all of the compound its need

my suggestion compound are made up of water ,mineral protein carbs and fat

our body produce little nutrients so we need to eat to get the nutrients we need

im am going with b

B is the answer

Once mRNA is made it travels

A. out of the cytoplasm, into the nucleus where a ribosome will attach to it.

B. out of the nucleus, into the cytoplasm where a ribosome will attach to it.

Answers

Answer:

B. out of the nucleus, into the cytoplasm where a ribosome will attach to it.

Explanation:

Once mRNA is made, it travels out of the nucleus, into the cytoplasm where a ribosome will attach to it.

Clones (identical copies) are formed in
Meiosis
Mitosis

Answers

Mitosis is the correct answer
Mitosis makes exact copies of DNA whereas in Meiosis it creates all different kinds of cells to create the organism

HELP! What evidence indicates that many psychological disorders, such as schizophrenia and developmental
disorders, are biologically and not environmentally based?

Answers

Answer:

Schizophrenia and developmental disorders are traced genetically, and the gene will be found in the biological parents of the person with either schizophrenia or developmental disorders.

Explanation:

Although Schizophrenia can be triggered by environmental factors, or the 'nurture' of childhood development, a person who is not predisposed genetically to schizophrenia will not get the psychological disorder. The same is to be said about developmental disorders such as Autism and ADHD, it is hereditary.

For citation of evidence, I recommend talking about prenatal development, and how toxic substances can alter the development of a fetus, which is proven to lead to some developmental disorders, such as Fetal Alcohol Syndrome.

Answer:

Schizophrenia and developmental disorders are genetically connected, and the gene will be found in either the individual's biological parents or the person suffering from schizophrenia or developmental abnormalities.

Explanation:

Malaria is a disease that kills over 800 000 people each year. What causes malaria and how is it spread? What drugs are used to treat this disease and why should Canadians be concerned about the spread of malaria worldwide?

Answers

Answer: Usually, people get malaria by being bitten by an infective female Anopheles mosquito. Only Anopheles mosquitoes can transmit malaria and they must have been infected through a previous blood meal taken from an infected person.

where does pollination takes place in the flower

Answers

Answer:

To be pollinated, pollen must be moved from a stamen to the stigma. When pollen from a plant's stamen is transferred to that same plant's stigma, it is called self-pollination. When pollen from a plant's stamen is transferred to a different plant's stigma, it is called cross-pollination.

Explanation:

What are the characteristic of a cell?

Answers

Answer:

All cells have a cell membrane, cytoplasm, and DNA. cells differ in how their genetic information is contained. All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.

hope this helps

have a good day :)

Explanation:

In humans, brown eyes are dominant to
blue eyes. What is the probability
that two heterozygous brown-eyed
parents will have a child with blue
eyes?
J. 25%
K. 50%
L. 75%
M. 100%

Answers

Answer:

j

Explanation:

since brown eyes are more dominant than blue eyes chances of it is 3/4

Answer:

The answer is J. 25%.

Explanation:

In this problem, we know brown eyes are dominant to blue eyes.  We can let the dominant allele for brown eyes be represented by "B" and the recessive allele for blue eyes be represented by "b".  Since it is given that both parents are heterozygous, we know that they must have the genotype Bb.

When two Bb individuals are crossed, the offspring will be 1 BB : 2 Bb : 1 bb, or 3 brown : 1 blue ratio.  Therefore, 1/4 of the offspring will have blue eyes, which represents 25%.  Thus, the correct answer is choice J, 25%.

Hope this helps!

Which process produces haploid cells?
A. Meiosis

B. Mitosis

Answers

Answer:

the answer is: A

meiosis

The right answer is A Meiosis

n guinea pigs, black coat color (B) is dominant to white (b). If both heterozygous black guinea pig mated, what are the F1 genotypes and phenotypes?

Answers

(Genotype ) - (Phenotype)

BB - black coat

Bb - black coat

bb - white coat

when a plant is not strong enough to support its own weight what is most likely the problem

Answers

Answer:

the roots are weak

Explanation:

because it can’t hold its weight

What risk is most likely to happen when using wind as an energy source

Answers

Answer:

As with all energy supply options, wind energy can have adverse environmental impacts, including the potential to reduce, fragment, or degrade habitats for wildlife, fish, and plants. Furthermore, spinning turbine blades can pose a threat to flying wildlife like birds and bats.

wh
which event is part of the exposition in "Cinderella"?

The slipper fits Cinderella’s foot.
A fairy godmother appears to Cinderella.
The prince and Cinderella get married.
An invitation to the prince’s ball arrives.

Answers

Answer:

An invitation to the prince’s ball arrives.

Explanation:

an exposition is in the beginning of the story, leading to the climax. the invitation leads to cinderella meeting the prince.

What does DNA prove about organism ancestry?
A. Plants and animals are not related to one another

B. That all organisms are related to one another

C. DNA and RNA are completely different forms of genetic coding

D. Extraterrestrial life will have DNA as well

Answers

Answer:

B. That all organisms are related to one another

Explanation:

DNA and the genetic code reflect the shared ancestry of life. DNA comparisons can show how related species are. Biogeography. The global distribution of organisms and the unique features of island species reflect the evolution and geological change.

Answer:

B. That all organisms are related to one another

Explanation:

DNA prove about organism ancestry, that all organisms are related to one another.

Organelles are specialized structures that perform important cellular functions; they are structures you can generally see only under a microscrope. Which of the organelles below would you expect to find in all living cells?
A) cell membrane
B) cell wall
C) DNA
D) Cytoplasm
E) Nucleus
F) Chloroplasts

Answers

Answer:

I think D which is the cytoplasm

Explanation:

because it is not specific with cell is this off so cytoplasm is there in both the animal cell and plant cell

What is the role of transport proteins in
active transport?
A. They move molecules against the gradient.
B. They collect molecules of water to assist in the process.
C. They store the ATP needed to power the process.

Answers

I believe it’s A……………………..

Adults produce gametes through a type of cellular reproduction called mitosis. The process of a sperm cell and an egg cell fusing together is called fertilizationand produces a zygote. As a zygote undergoes rapid cell division to develop into an embryo, fetus, and eventually baby, the type of cellular reproduction being used is . As a baby grows into an adult, the type of cellular reproduction used is mitosis.

Answers

Answer:

Mitosis.

Explanation:

Mitosis is the type of cellular reproduction which is used in order to develop an embryo, fetus, and eventually baby. In mitosis type of cell division, the parent and mature cells divides into two daughter cell. This type of cell division occurs in somatic or body cells whereas meiosis type of cell division occurs in the sex cells which produces four daughter cells from a single parent cell.


2. Define biomagnfication.

Answers

Answer:

It is the gradual accumulation of substances

Do you think if the environmental conditions in an area changes that the plants and animals that inhabit that region will change their features to adapt to the changing conditions?

Answers

Answer:

yea

Explanation:

cause our climate conditions changes everyday depends on the atmosphere at that time so if there fire in a forest all the animals there have to adapt to the smoke.

Yes, if the environmental conditions in an area changes that the plants and animals that inhabit that region will change their features to adapt to the changing conditions.

Why plants and animals will change their features?

Plants and animals are fundamentally different in many ways, but one of the most obvious is in how they deal with temperature.The climatic niche of a species reflects where it can live.A species with a wide climatic niche can range widely across many different conditions and may be especially resilient to climate change.Different sets of plant and animal species tend to occur at different elevations, which differ in temperature and precipitation.

Learn more about adaptations below,

https://brainly.com/question/19733892

#SPJ2

Droughts occur due to climate change and elevated temperatures, which in turn may lead to other consequences as well. Imagine that a wildfire happened in the nature reserve. Predict what would happen if such an environmental shift that is so extreme and rapid
hits the nature reserve and the population of deer mice does not have time to adapt. Propose a possible solution for this problem.

Answers

Answer:

Research shows that changes in climate create warmer, drier conditions. Increased drought, and a longer fire season are boosting these increases in wildfire risk. ... Changes in climate add to these factors and are expected to continue to increase the area affected by wildfires in the United States.

does Mars has Oxygen? Can we breath on Mars?​

Answers

Answer:

There is Oxygen in Mars comprising the 0.13% of it's atmosphere. With that, it is still impossible for humans to breathe on the said planet without suits with oxygen supply.

Answer:

yes

Explanation:

Mars atmosphere is dominated by carbon dioxide (CO2) at a concentrated of 96%. Oxygen is only 0.13%.

Lamarck's ideas on evolution were adopted by some Russian scientists, includingLysenko. Russian textbooks printed Lysenko's assertionthat workmen who develop strong muscles from working in the mines would produce children who would be born stronger. Which of the major elements of evolution by natural selection is violated by this assertion

Answers

Answer:

The acquired characteristics are inherited.

Explanation:

Lamarck was a French naturalist and biologist. Lamarck was considered to be the early proponent who occurred the biological evolution. He was will known all over the world as early evolutionists.

Lamarck believed that the living things grow directly in the upward direction from a simple to a more complex form.

In the context, the ideas on the evolution were adopted by the Russian scientist which includes Lysenko. The Russian textbooks printed the assertion of Lysenko assertion that workmen develops a strong muscles those who are working in the mines that would produce strong children.

Bu this assertion, it violated the acquired characteristics that are inherited.

A utility company has proposed building a natural gas power plant next to a lake. The picture below shows the proposed power plant.






The company claims burning natural gas will release only harmless gases such as water vapor (H2O) and carbon dioxide (CO2). Why would environmental scientists disagree with this claim?

A
The emission of carbon dioxide leads to rapid cooling of the Earth’s lakes and oceans.

B
The emission of carbon dioxide leads to an increase in the temperature of the atmosphere.

C
The emission of water vapor leads to a decrease in the humidity of Earth’s atmosphere.

D
The emission of water vapor pollutes the atmosphere, causing harm to plants and animals.

Answers

Answer:  B is right

Explanation: Carbon dioxide is a greenhouse gas which is involved

with increasing temperature of atmosphere

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