What is the cause of the toxic algae overgrowth in Prospect Park lake?

Phosphorus in the NYC tap water that feeds the lake. Phosphorus is put in the water to prevent lead from leaching into NYC's tap water.

Nitrogen from all of the dog poop surrounding the lake.

Combined sewage outfalls.

(This is 7th grade science).

Answers

Answer 1

Answer:

Harmful Algal Blooms (HABs) are produced by naturally occurring cyanobacteria in lakes and ponds, including the Prospect Park Lake and other bodies of water in the NYC area.

Explanation:

there is non


Related Questions

The way an organism appears is called the

Answers

Answer:

phenotype

Explanation:

Michael loves playing his clarinet and believes it attracts more rabbits than any other instrument he
has played. In order to test his hypothesis, Michael played a song on his clarinet for a total of 5
minutes and counted the number of rabbits he saw in his front yard. He played the song a total of 3
times on his clarinet and repeated the experiment using a flute and a guitar. He also recorded the
number of rabbits he observed when he was not playing an instrument. The results are shown in the
chart.
Number of Rabbits
TRIAL
NO MUSIC
CLARINET
FLUTE
GUITAR
15
1
2
3
5
3
2
10
12
5
8
9
12
18
7
1) What is the independent variable?
2) What is the dependent variable?
3) What is the experimental group?
4) What is the control group?
5) What is one constant from the experiment above??

Answers

Answer:

Independent variable: type of instrument

Dependent variable: Number of rabbits attracted

Experimental group: The group when he played an instrument

Control group: The group when not playing an instrument

Constant: Same song

Explanation:

1. Independent variable is the variable that the experimenter changes or manipulates in an experiment. In this experiment, the variable that is changed is the TYPE OF INSTRUMENT used (clarinet, flute, guitar), hence, it is the independent variable.

2. Dependent variable is the variable that is measured in an experiment. It is the variable that responds to the changes made to the independent variable. In this experiment, the dependent variable is the "NUMBER OF RABBITS ATTRACTED" by the instrument played.

3. Experimental group is the group of an experiment that receives experiment treatment, which is the independent variable. In this case, the experimental group is the GROUP IN WHICH INSTRUMENT WAS PLAYED.

4. Control group is the group that does not receive the experimental treatment. In this case, the control group is the group in which INSTRUMENT WAS NOT PLAYED.

5. Constants are those variables that remains unchanged for all groups throughout the experiment. In this case, one constant is the SAME SONG played.

6) Pamela went to the doctor for her yearly check-up. They discovered that she had decreased
estrogen and progesterone levels. After a few months of medication, her levels returned to
normal. She stressed to her doctor that she wanted a child. Her doctor said that with the
hormonal supplements, she should be able to conceive a child.
What systems are affected?
Why?

Answers

Answer:

strogen and progesterone levels

Explanation:

she stressed to her doctor

Is a chicken egg biotic (living) or abiotic (non-living)? *
biotic (living)
abiotic (non-living)

Answers

Answer:

its biotic

Explanation:

Chicken egg is biotic.

What are biotic or abiotic components?

Biotic components are living organisms while abiotic components are nonliving organisms. All biotic components are living components of ecosystem. Bacteria and birds, animals  are living components.

Abiotic components are non living components. sunlight, water and temperature are the non living components. Biotic factors are producers, herbivores and omnivores.

Abiotic components are physical and chemical components that act on the living components. In chicken cell the yolk which is living cells.

Biotic components also include the waste from living things and dead organisms. Earth have many biotic components. The surface of Mars has no biotic components.

Therefore, Chicken egg is biotic.

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Can you share some interesting information about HIV?​

Answers

HIV CAME FROM CHIMPS

Answer:

yes HIV can  be  transmitted  through  sex or already chewed food like your mom did for you when you were a baby it can also your mothers breast so i hope u drank out of a bottle

Explanation:

Explain how geography influences genetics

Answers

Answer: Environmental variables can influence the movement of gametes, individuals and groups of individuals among natural populations to affect gene flow patterns, which may have a profound influence on the spatial and temporal distribution of genetic variation and further, evolutionary progress of natural populations.

What kind of bacteria are able to change pure nitrogen into ammonia compounds?
Group of answer choices

nitrifying

decomposing

nitrogen-fixing

denitrifying

Answers

Answer:

the anwer is nitrifying fixing as given in your text .

Explanation:

Decomposers also produce ammonia by converting animal waste and dead plants and animals into organic and inorganic materials, including ammonia.

Nitrifying I hope this helps

Select all the correct answers.
When people run quickly, they can sweat profusely. Their muscles undergo movement, and the loss of energy takes place. Based on this
description, in which two ways is energy conserved when people run?
-Heat energy is released from the body to the surroundings.
-Heat energy is taken from the surroundings to the body.
-Chemical energy is converted to mechanical energy that's used for muscle movements.
-Radiant energy is converted to mechanical energy that's used for muscle movements.
-Heat energy is converted to mechanical energy that's used for muscle movements.

Answers

Heat energy is released from the body to the surroundings and Chemical energy is converted to mechanical energy that's used for muscle movements are the  two ways in which energy is conserved when people run.

To do the things you do every day, you need energy. When you eat food, your body can use the chemical energy in the food to move your muscles, allowing you to breathe, walk, run, jump, lift things, and do everything else necessary for survival.

The chemical energy in food is converted into mechanical energy by moving muscles.

Chemical energy in the form of glucose in our food is converted into mechanical energy in the human body during movements such as running or lifting heavy objects. The muscles act as a transducer, converting chemical energy to mechanical energy through muscle contraction.

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Which best describes the progress of science

Answers

Answer:

Scientific ideas are changed when better ones are found.

Explanation:

which of the following is an object used in relative dating

A-Carbon 14
B-Daughter Isotope
C-Index Fossil
D-Parent Isotope

i know for sure it’s not A

Answers

option C!!

Using index fossils for age estimates of rock layers is not a new idea. For example..
1) if you have a fossil trilobite and it was found in the Wheeler Formation.
2) Ammonites were common during the Mesozoic Era. They were not found after the Cretaceous period

The object that is used in relative dating is Index Fossil. Thus, option C is correct.

What is Fossil records?

Fossil records are described as the position of found fossils all through the surface or the layers of the earth. The older the fossils are, the deeper it is found. Fossil records are also considered to be gathered information about the total number of the discovered fossils and the data obtained from them.

Fossil records are important guides to determine how life existed before. If you are to assemble a fossil, you will be able to see and tell the evolutionary changes that happened over the past years. Fossil records are evidences pointing out that life before is totally different from now.

Index fossils are fossils that are common yet were only present for a brief time. By comparing a rock layer to other rock layers, index fossils enable scientists to determine the relative age of a rock layer. Organisms that are still alive today yet have undergone little alteration over millions of years are known as living fossils.

Therefore, The object that is used in relative dating is Index Fossil. Thus, option C is correct.

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Rivers that have developed over a long period of time are found in wide valleys with flat, low-lying bottoms. These valleys were
created by the removal of rock and soil through the process of _____.
OA. deposition
B
C. erosion
•D. weathering
glaciation

Answers

Option C i thinkkkkk

PLEASE HELP ME ITS MY FINALE !!!
The chart below shows the gravitational force between each pair of objects.
0.0000025 N
588 N
0.000358 N
0.000000067 N
Which pair of objects is experiencing the least gravitational force?
PREVIOUS

Answers

Answer:The answer is the person and the tennis ball :)

Explanation:

The cell membrane is a lipid bilayer but a cell has only one membrane. which organelles in this lesson have a double membrane?
((chapter 16 lesson 2) Miller & Levine Experience biology the living earth founations workbook)

Answers

Answer:

The mitochondria have a double membrane. They help in respiration.

Explanation:

Identify a control group for the analysis shown in Figure 3. Justify analyzing SIRT3 protein level in four different cancer cell lines, as shown in Figure 1. Based on Figures 1 and 3, describe the relationship between SIRT3 expression and cytoplasmic ATP levels. Calculate the percent change in cytoplasmic ATP levels by SC+RNA cells compared with SC+plasmid cells.

Answers

Answer:

the control group is NS (normal stomach cells). the different cells can react different ways based on the specific cell because each cell in different people codes for different traits in each person therefore they are likely to react differently. the higher the SIRT3 expression the higher the cytoplasmic ATP levels. the difference is about 1 difference.

Explanation:

What is antibiotic resistance and why should we be
worried?

Answers

Answer: Antibiotic resistance is when bacteria develops a resistance or an immunity against antibiotics. If this evolution/adaptation becomes widespread, our healthcare system could see a mass rise in deaths due to us not being be able to effectively treat the bacteria which is causing harm.

Explanation:

I learned about this

what is reduced soil?

Answers

Answer:

A chain of reactions is initiated upon soil flooding leading to reduced (low) soil redox potential (Eh, mV) conditions. These reactions include physical, chemical and biological processes that have significant implications for wetland plants.


Physical processes include restriction of atmospheric gas diffusion in the soil leading to depletion of soil oxygen and accumulation of carbon dioxide [4,5]. ... This process leads to oxygen depletion and reduction in soil oxidation reduction potential (Eh) followed by a chain of soil chemical changes.

Which is the source of energy, which drives the water cycle?

Answers

Answer:

it's the sun

Explanation:

the water cycle is driven primarily by the energy from the sun

We will be looking at the amount of glucose in Shawn's blood today.
What would you expect to see if his digestive system was not properly breaking down food?
Would there be too much, too little or the right amount of glucose in his blood? Explain your answer.
Pr

Answers

Answer: It would most likely be little amounts of glucose. Because, the digestive system is not working properly

Explanation:


Can anyone help me please

Answers

What are the vocab words?

how do you think the idea of sustainability influences the work of foresters?



help me

Answers

It’s funny because the concept of sustainability is thought to come from field of forestry. Around the year 1700, Carl von Carlowitz described the concept of sustainable forestry.

Which natural resource is nonrenewable?

sunlight


sugarcane


oil or petroleum


corn​

Answers

Answer:

There are four major types of nonrenewable resources: oil, natural gas, coal, and nuclear energy. Oil, natural gas, and coal are collectively called fossil fuels.

The natural resource is nonrenewable oil or petroleum is a carbon primarily based totally gasoline .

What are nonrenewable resources?

There are 4 essential varieties of nonrenewable resources: oil, herbal gas, coal, and nuclear energy.

Oil is a carbon primarily based totally gasoline that bureaucracy while plant and animal stays are uncovered to intense situations which include excessive pressure (eg below a dust layer on the sea floor.) for hundreds of years. Therefore the oil we use these days took millennia to form.

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Mutations that are passed to offspring must
OCcur
in

Answers

Answer: Gametes

Explanation:

what is the meaning of biosphere​

Answers

Answer:

The biosphere is a global ecosystem composed of living organisms (biota) and the abiotic (nonliving) factors from which they derive energy and nutrients. Earth's environmental spheres. Earth's environment includes the atmosphere, the hydrosphere, the lithosphere, and the biosphere.

Explanation:

''.''

Biosphere, relatively thin life-supporting stratum of Earth's surface, extending from a few kilometres into the atmosphere to the deep-sea vents of the ocean. The biosphere is a global ecosystem composed of living organisms (biota) and the abiotic (nonliving) factors from which they derive energy and nutrients.

why does the temp of the air increase with the height of the stratosphere?

Answers

Answer:

The hot air rises and the cool air falls

Explanation:

What is the term for traits an organism possesses that help it survive better?

a.
Permutations


b.
Mutations


c.
Generations


d.
Adaptations

Answers

Answer:

d. adaptations

Explanation:

Which cell type has organelles that are NOT membrane-bound, eukaryotic or prokaryotic? PLEASE HELP

Answers

The answer is prokaryotic

What is the most common molecule in living things?
OA. CO,
O B. CO
OC. Hy
OD. Hz0
Helppp

Answers

Answer:

Explanation:

Ao

Your answer is C: H2O

Living things composed of many molecules. Which are water , fats , carbohydrates , proteins. Gases include oxygen , carbon dioxide , carbon monoxide , hydrogen etc. Body also contains ions such as sodium , phosphate , potassium etc.

Water is body's main component. The amount of Water in human body is around 55- 60 percent. The percent of water in infants is high around 75-85 percent.

Students are given data from an investigation that identified some of the chemical elements present in four different samples
Elements Present in Samples
Sample
Elements
1
2
Hydrogen, phosphorus, and nitrogen
Aluminum, silicon, and copper
Calcium, potassium, and nitrogen
Iron, oxygen, and magnesium
3
4
Which sample was most likely DNA?
Sample 1
Sample 2
Sample 3
Sample 4

Answers

Answer:

sample 1

Explanation:

has phosphorus, main chemical compund

Students are given data from an investigation that identified some of the chemical elements present in four different sample correct sample is sample 1.

What defines a chemical element?

Chemical element, also called Part, any substance that cannot be decay into simpler subsnces by normal chemical processes.

Thus, sample 1 is correct.

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Explain how autotrophs need both cellular respiration and photosynthesis

Answers

Answer:

They get energy from food. Autotrophs make their own food through the process of photosynthesis, in which light energy from the sun is changed to chemical energy that is stored in glucose. And as for cellular respiration, all organisms use it to break down glucose, release its energy, and make ATP.

Explanation:

_____________

Which of the following processes is NOT a physical or chemical change?
a. crushing
b. weighing
c. melting
d. passing electric current

Answers

B. Weighing , because all its checking is the weight.

Answer:

b

Explanation:

doesn't change anything

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