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

Which molecule do mammals use to store extra glucose?
O starch
O cellulose
O myosin
O glycogen

Answers

The answer is glycogen
Because glycogen is an large storage molecule of extra glucose
The answer is D. Glycogen

For each group write the # of valence electrons

Answers

Answer:

Explanation:

Bascially just count starting from 1 (skip the transition metals) and put helium at 2 valence. Everything else is just a regular pattern.

What is Homologous evolution and Analogous evolution give its example !

Spam✔️​

Answers

Homologous evolution means divergent evolution.

it is a type of evolution in which different species have common ancestor. for example if we take members of one species and put them in different environments then it is observed that there is some changes in the species according to environment

analogues evolution means convergent evolution

Answer:

Similar traits can be either homologous or analogous. Homologous structures share a similar embryonic origin. Analogous organs have a similar function. For example, the bones in a whale's front flipper are homologous to the bones in the human arm.

Look at the chart comparing the price of graphic T-
shirts to the quantity supplied.
This chart is an example of a
O demand curve.
O demand schedule.
Price Per
Graphic Tee
Quantity
Supplied
O supply curve
O supply schedule.
$5.00
10
$7.50
20
$10.00
30
$12.50
40
$15.00
50

Answers

Answer:

It's D

Explanation:

The asker answered it for me XD

The chart that was used to compare the price of graphic T-shirts to the quantity supplied is a: supply schedule.

What is supply?

Supply can be defined as the total quantity of goods or services that are demanded by consumers at a given price and period of time.

In Economics, there are two main types of chart that are used to illustrate the relationship between the total quantity of goods or services that are demanded by consumers and the total quantity of goods or services that were supplied by a manufacturer or producer and these include:

Demand scheduleSupply schedule

In this scenario, the chart that was used to compare the price of graphic T-shirts to the quantity supplied is called a supply schedule.

Read more on supply here: https://brainly.com/question/11898489


Which of the following describes the relationship between ecosystems and biomes?
O Many biomes are found within an ecosystem.
O Many ecosystems are found within a biome.
O Ecosystems are on land and biome are in the ocean.
O Ecosystems are natural and biomes have been modified by humans

Answers

Answer:

Ecosystems are natural and biomes have been modified by humans

What is the genotype of an organism?

A. The genotype is the DNA sequences of this gene on a homologous pair of chromosomes.

B. How the genes are expressed resulting in the physical appearance of the organism.

Answers

Answer:A. The genotype is the DNA sequences of this gene on a homologous pair of chromosomes.

Explanation:

A. The genotype is the DNA sequences of this gene on a homologous pair of chromosomes.

A muscle cramp is a sudden, painful contraction of a muscle, during which movement is difficult. What is happening at the cellular level during a muscle cramp?

Answers

Answer:

Myosin and actin do not fully detach, so the muscle cannot relax.

which of the samples shown below are photosynthetic

Answers

Option B. Samples ACD Are photosynthetic

What does it mean to be photosynthetic

To be photosynthetic means to possess the ability to carry out photosynthesis, a vital process in which organisms, typically plants, algae, and some bacteria, use sunlight, carbon dioxide, and water to synthesize organic compounds, particularly glucose, and release oxygen as a byproduct.

Photosynthesis occurs in specialized cell structures called chloroplasts, which contain chlorophyll and other pigments that capture light energy. These pigments absorb light, primarily in the visible spectrum, and convert it into chemical energy through a series of biochemical reactions.

Read more on photosynthesis here:https://brainly.com/question/13763348

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can anyone help me with this question? Thank you.

Answers

Answer:

At B part.

Explanation:

At B part the nightfall will happen first because the B part is in the shade and will not present in front of the sun. When the earth rotates its own axis, the shaded part which is B comes in front of sun which means day time is started while on the other hand, the A part is in the shade and will experience nightfall so we can say that the nightfall occurs at B part of the earth.

Scientists recently discovered that three different types of squid, a marine animal, previously thought to be three different species, were actually all members of one species. Their earlier ideas were based on using squid carcasses (dead bodies). The new, more accepted classification is most probably based on an analysis of
A. a greater number of squid carcasses
B. the feeding habits of the three different species
C. a number of newly found squid fossils
D. the DNA present in the cells of squid

Answers

Answer:

D: The DNA present in the cells of the squid.

1: Which two parts of the taxa do we use to name organisms?
2: List and describe each of the three Domains.
3 List and describe the four kingdoms in the Eukarya Domain. ​

Answers

2.) list and describe each of the three domains

during which phase of mitosis do nuclear membranes form around 2
sets of chromosomes

Answers

Answer:

Telephase

Explanation:

Cellular respiration definition ?

Answers

Answer:

cellular Respiration is that cells use oxygen in mitochondria to make ATP and GTP for cells

Answer:

Cellular respiration occurs when cells utilize oxygen in their mitochondria to produce ATP and GTP.

Cellular respiration is a series of reactions that occur under aerobic conditions and result in the production of large amounts of ATP.

Explanation:

Glucose, the basic building block for starch and many sugars are one of the main sources of energy in our diet. Its oxidation can be divided into three phases in the respiration of the cells: glycolysis, the cancer cycle, and the electron transport system.

Aerobic breathing uses eukaryotes to generate energy, including all multicellular organisms and some single-cell organisms. Aerobic breathing uses oxygen – a powerful, in-kind electron acceptor.

Aerobic breathing is an extraordinarily effective process that enables eukaryotes to have complicated life and active lifestyles. It also means however that they need a continuous supply of oxygen or that they cannot get the energy to stay alive.

Other forms of respiration, which are slightly less efficient, can be used by procharian organizations such as bacteria and archaebacteria. They can therefore live in environments in which eukaryotic organisms cannot live because they do not need oxygen.

help plsssssss will give brainliest

Answers

Answer:

C

Explanation:

Common sense

The answer is C Revolution of Earth around the Sun.

How human health is affected by contaminated food​

Answers

Answer:

Foodborne pathogens can cause severe diarrhoea or debilitating infections including meningitis. Chemical contamination can lead to acute poisoning or long-term diseases, such as cancer. Foodborne diseases may lead to long-lasting disability and death

Explanation:

i hope it will help you

Which of the following describes a property control experiment
A. 15 turtles are fed iceberg lettuce environment for another 15 turtles only for iceberg lettuce
B. A poll is taken to Turman the most popular website ever
C. 20 mice are fed donuts every day and their weight is measured after two months
D. Five radish seeds are planted in an out door garden to get lots of sun and water

Answers

I’d say D but I’m not 100% sure

Adrenergic receptors Select one: a. can be activated by the release of epinephrine. b. have two structural forms - muscarinic and nicotinic. c. when activated stimulate skeletal muscles to contract. d. can be found in both the sympathetic and parasympathetic divisions. e. are activated by the release of acetylcholine.

Answers

Answer:

The correct answer is  a. can be activated by the release of epinephrine.

Explanation:

Epinephrine is a hormone and neurotransmitter naturally secreted by the body through the adrenal glands, synthesized and stored in the adrenal medulla and released into the systemic circulation. Epinephrine is a non-selective adrenergic agonist, stimulating alpha1-, alpha2, beta1, and beta2-adrenergic receptors. The systemic actions of catecholamines are mediated by the binding of these compounds to plasma membrane receptors, of the GPCR type widely distributed throughout the body and known as adrenergic receptors, which are activated by the catecholamines adrenaline (epinephrine) and noradrenaline . These receptors cause different effects depending on the G protein subtypes to which they are associated and the signal transduction mechanism linked to the specific G protein.

The size of pupils changes when moving from dim to very bright light. Explain how this change occurs?

Answers

Answer:

In dim light, your pupil expands to allow more light to enter your eye. In bright light, it contracts. Your pupil can range in diameter from 1/16 inch (1.5 mm) to more than 1/3 inch (8 mm). Light detected by the retina of your eye is converted to nerve impulses that travel down the optic nerve.

Explanation:

All of the species of sugar maple trees (Acer saccharum) found in the [town] make up a:
1. population
2. community
3. ecosystem
4. biome

Answers

Answer:biome

Explanation:

Because biome means where they are from

Answer:

C

I think it's correct unless any objections

Which of the following best describes the function of the human nervous system? ​

Answers

Answer:

The nervous system gathers, interprets, and responds to information about the body's internal and external environment.


Early in mitosis, the nucleus, nucleolus, and nuclear envelope begin to dissolve in preparation for cell division. In
which stage of the cell cycle is this process reversed?

Answers

Answer:

Telophase

Explanation:

During telophase, a nuclear envelope becomes apparent around the nucleolus of each sister chromatid, forming their nucleus before separation/cytokinesis.

If this helped you, I'd appreciate Brainliest <3 TY

The hypothesis that whales evolved from land-dwelling ancestors is supported by __________. ANSWER Unselected molecular comparisons of whales and fish Unselected historical accounts of walking whales Unselected the ability of captive whales to be trained to walk Unselected fossils of extinct whales that had increasingly reduced hind limbs Unselected evidence from the current biogeographic distribution of whales Unselected I DON'T KNOW YET

Answers

Answer:

The answer is "Third choice".

Explanation:

Fossils are a great source of evidence about whales' forebears. It demonstrates, for instance, that a land mammal lived 50 million to 700 years ago. Whales evolved from such marine residents were thought by scientists. Scientists. This and more cells from a fossil can be said, so the concept that whales evolved from ancestors of land is reinforced by an extinct whale which has shortened the hind limbs evermore.

Which part of the neuron below is indicated by the arrow, and what is its function?
The long section of a neuron that includes structures that wrap around the neuron are indicated by the arrow.

- The myelin sheath releases neurotransmitters so that electrical impulses can be transferred.
- The myelin sheath protects and transmits electrical impulses faster.
- The node of Ranvier transmits electrical impulses faster.
- The node of Ranvier transfers information across a gap.

Answers

Answer:

the arrow points to an axon

Explanation:

Each neuron in your brain has one long cable that snakes away from the main part of the cell. This cable, several times thinner than a human hair, is called an axon, and it is where electrical impulses from the neuron travel away to be received by other neurons.

Answer:

B: The myelin sheath protects and transmits electrical impulses faster.

Explanation:

i just took the test and its B

Describe movement of molecules to maintain a healthy cell environment. Explain in details

Answers

Answer:

Very necessary for its survival.

Explanation:

Movement of molecules is very important to maintain a healthy cell environment because some molecules are required by the cell for its growth and development. Some molecules moves inside the cell environment through a semi-permeable membrane such as glucose, oxygen, potassium etc while on the other hand, some molecules are removed from the cell which are waste materials such as carbondioxide etc. If these waste materials are not removed from the cell, it greatly damaged the cell.


Which three statements are true about the energy flow in an ecosystem?

Answers

Answer:

main source of energy for an ecosystem is the sun producers convert radiant energy to chemical energy the maximum amount of biomass is at the lowest trophic level

Answer:

A,B and E

Explanation: hope it helps you :)

What can you infer from this graph?

Answers

Answer: you can infer that I don’t give a uriruru

A. The graph is an example of a density-dependent limiting factor
B. The graph is an example of a density-independent limiting factor
C. The population of P. caudatum decreases while the population of
P. Aurelia increases when they are grown together
D. The graph shows that an increase in population of the protist P. aurelia
causes a decrease in the population of P. caudatum when they are
grown
together.

Crossing-over takes place between...
A. sister chromatids

B. analogous chromosomes

C. homologous chromosomes

Answers

Answer:

C. homologous chromosomes

Explanation:

Crossing over occurs between prophase I and metaphase I and is the process where two homologous non-sister chromatids pair up with each other and exchange different segments of genetic material to form two recombinant chromosome sister chromatids.

Answer:

C. homologous chromosomes

Explanation:

Crossing-over takes place between homologous chromosomes.

Use the diagram below to answer Q2 and Q3.
Q2.
Which stage of meiosis is illustrated above?

Answers

It would be Metaphase 1

what is the all year round climate present in the philipines

Answers

The average year-round temperature measured from all the weather stations in the Philippines, except Baguio, is 26.6 °C (79.9 °F). Cooler days are usually felt in the month of January with temperature averaging at 25.5 °C (77.9 °F) and the warmest days, in the month of May with a mean of 28.3 °C (82.9 °F).

What does biodiversity mean?
O
same organisms at each level
different organisms at all levels
O differences within one species
similarities within one species

Answers

Answer:

Biodiversity is a kind of variation of animals, or plant species within a given habitat

Explanation:

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