A scientist hypothesizes that increasing the amount of salt in a body of water will decrease the number of plants that can live in the water. What is the independent variable?
Group of answer choices

Amount of salt

Amount of water

Temperature of the water

Number of plants in the water

Answers

Answer 1

Dependent and Independent variables are regarded as variables in mathematical and statistical modeling and of course in some other aspects.

The independent variable is this case is the amount of salt.

In this kind of scenario, one can think of independent and dependent variables in terms of cause and effect.  An independent variable is the variable we assume to be the cause, while a dependent variable is assumed as the effect. Therefore, with this case, the amount of salt would cause a decrease in the number of plants. While the effect of increasing the amount of salt would be seen in the number of plants.

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Related Questions

what are the tools or equipment used by manicurist or pedicurist
1
2
3
4
5​

Answers

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Nail CutterCuticle PusherCuticle NipperNipperNail Buffer Nail File

The epicenter of an earthquake is located 6,500 kilometers away from a seismic station. If the first S-wave arrived at this seismic station at 1:30 p.m., at what time did the first P-wave arrive?

Answers

Based on the epicenter and the time of the arrival of the first S-wave, the first P-wave will arrive at 1:22 pm.

From the information given, it was stated that the epicenter of an earthquake is located 6,500 kilometers away from a seismic station and that the first S-wave arrived at this seismic station at 1:30 p.m.

Therefore, it should be noted that the first P-wave will have arrived 8 minutes earlier. This will be:

= 1:30 pm - 8 minutes

= 1:22 pm.

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Multiple choice please help!

Answers

Answer:

A=T is the answer ..............

Answer:

The correct answer is A) A=T

Explanation:

A DNA molecule is shaped like a twisted ladder, a shape that is called a(n) __________?​

Answers

Answer: Its just called a twisted ladder. If you could give me the options i can answer!!

Explanation:

Answer:

a twisted ladder (DNA) is called double helix

7) Check the terms that fit into the science category "Biology". Select all that apply. air light solar system water animals sound land plants

Answers

i would say water, animals and plant
pls make me brainliest a
I would say all the above. Besides sound or sound land you are not putting comas so I don’t know if those two go together.

Explain what is wrong with the cells shown in the image below.

Answers

Answer:

wrong answer

Explanation:

it doesn't show any thing that why its wrong

Megan observes four cells under a microscope and makes sketches of them as shown. Identify whether the cells are prokaryotic or eukaryotic.

Answers

Prokaryotes don’t have nucleus
Eukaryotic have nucleus

The purpose of the light-dependent reactions of photosynthesis is to -

a
split water to form oxygen
b
produce sugars
c
join glucose molecules to form starch
d
uses energy molecules like ATP

Answers

I think the correct answer is B.

We need to recycle our waste because Earth is a closed system with respect to
matter, and new matter does not enter the environment. Agree or disagree

Answers

I disagree because although recycling is good, Earth firstly is not a closed system and new matter enters the environment all the time, such as comets.

In terms of matter, the Earth is often referred to as a closed system. In other words, the total amount of matter on Earth neither changes nor becomes more or less; Instead, it can take on different forms due to different processes.  So, I am agree with this statement.

Although the Sun provides the world with continuous energy, most of the actual matter on Earth is recycled and used in various cycles. Recycling of waste is important because it enables us to recover useful materials and resources, reducing the need for mining new raw materials from the earth. Recycling helps us to reduce the environmental damage caused by the extraction and disposal of waste as well as the depletion of natural resources. It helps maintain long-term equilibrium inside a closed system of matter on Earth.

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Which are two molecular groups that distinguish proteins from carbohydrates?​

Answers

Proteins are different from carbohydrates due to the presence of

NitrogenCarbonHydrogenOxygen

what does thermohaline circulation have in common with coastal upwelling

Answers

Answer:

Coastal upwelling is the process by which strong winds blow down the coasts of continents and, in conjunction with the earth's rotation, cause the surface waters to be pushed offshore. Water from the ocean depths is then pulled up - or upwelled - to the surface to take its place

Kaya had an organ transplant. She went to the doctor a week later, and the doctor did a blood test. Her lymphocyte count had increased. She went to the doctor a month later for the same test, and her lymphocyte count was higher. What is the best explanation as to why her lymphocyte levels were increasing

Answers

Answer:

Kaya was not tissue typed prior to her surgery, and her body is mounting an immune response.

How did scientists bring back she Spanish Flu?​

Answers

Answer:

By replacing the genes for either the 1918 virus’s surface protein

Explanation:

A snail moves 1.1 cm/min how far could it travel in 48 min

Answers

Answer:

52.8 centimeters

Explanation:

1.1 times 48 minutes is 52.8

Answer:

52.8 cm

Explanation:

1.1 cm/min multiplied by 48 equals 52.8

Darwin observed that there were finches on Galapagos Islands that had different foods and beaks but it turns out that they were related genetically to an original mainland finch. What evolutionary mechanism is responsible for these birds having evolved different beaks

Answers

Natural selection. Only the birds who had desirable traits for their food sources survived, meaning these were the only finches to reproduce.

HELPPPPP!!!!!
The following are true of DDAVP or desmopressin except
D. it helps to stimulate the urinary bladder to produce more urine.

C. it is administered by injection

A. it is a form of vasopressin

B. it is used to take the place of ADH

Answers

Answer:

i think its B

Explanation:

How much of Earth's land is currently used to grow food?

1/4
1/2
1/3
3/4

Answers

1/2

Explanation:

found an .org site that says so. tried to find a .gov but I'm lazy sorry. still, .or sites are pretty reliable.

PLZ HELP BRO its about environmental systems​

Answers

The answer should be B

what hormone do the c-cells secrete, and what is the function of this hormone?

Answers

Answer:

Calcitonin is one of those critical hormones. Calcitonin is a hormone that the C-cells in the thyroid gland produce and release. It opposes the action of the parathyroid hormone, helping to regulate the blood's calcium and phosphate levels. How does calcitonin work?

The hormone that the c-cell secrete is calcitonin. The function of calcitonin is a hormone that regulates the amount of calcium in your blood by decreasing it.

What are hormones?

The important hormone is calcitonin. Calcitonin is a hormone produced and released by the thyroid gland's C-cells. It works in opposition to the activity of the parathyroid hormone, assisting in the regulation of calcium and phosphate levels in the blood.

Calcitonin is a hormone produced by the thyroid gland, which is a tiny, butterfly-shaped gland found near the throat. Calcitonin regulates how the body uses calcium.

Calcitonin is a cancer marker. Tumor markers are substances produced in the body by cancer cells or normal cells in response to cancer.

Thus, calcitonin is the hormone secreted by c-cells. Calcitonin is a hormone that controls the quantity of calcium in your blood by reducing it.

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The organelles that break down lipids, carbohydrates, and proteins into
small molecules that can be used by the cell are called *
A. vacuoles
B. lysosomes
C. ribosomes
D. microfilaments

Answers

Answer: B
Explanation: Lysosomes are membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers—proteins, nucleic acids, carbohydrates, and lipids.

can someone explains (summarize) what photoperiodism is? And if it’s the same as photoperiodism

Answers

Answer: photoperiodism means the response of an organism to seasonal changes in day length. Photoperiodism isn't the same as Photoperiod because Photoperiodism merely refers to the potential of the plant to incite flowering relative to the changes in the photoperiod. Thus, photoperiod is a light duration or the length of day and night, while photoperiodism is the effect of light duration on the plant’s growth.

Explanation:

1.3.1 Project - Semester 1 Honors Biology Project, Part 1 (Project) PLEASE DONT KNOW WHAT IT TOPICS IT MEANS TO CHOOSE FOR THIS PROJECT

Answers

Answer:

This is very vague. I am pretty sure that there are other instructions.

_____ cannot be digested by human digestive enzymes. Group of answer choices Starch Fiber Maltose Glycogen

Answers

Answer: Fiber cannot be digested by human digestive enzymes.

Since the body can't break down fiber into sugar molecules, like most carbohydrates, it ends undigested.

What must be present for a compound to be organic

Answers

Answer:

any large amount of chemical in which one or more atom are found

The body has a number of systems that protect against infection.
Which of the following correctly orders four of these systems from most to least foundational?
Choose 1 answer:

A. B cell lymphatic tissue, lymph node, lymphatic system

B. B cell, lymphatic tissue, lymphatic system, lymph node

C. lymphatic tissue, B cell, lymph node, lymphatic system

Answers

Th appropriate ordering of the body system from least to most foundation in which they protect the body against infection is as follows.

 cell lymphatic tissue, lymph node, lymphatic system, option A is correct.

The body has levels of organisation that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs

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explain the interaction between geological events, human population, and the environment

Answers

The relationship between the environment, human population and geological events is complex and multidimensional. While human activities can also have significant effects on geological processes, geological events such as earthquakes, volcanic eruptions and climate change can have significant effects on the environment and human populations.

What is an Environment?

The conditions and forces that surround an organism, population or community are called its environment. It includes all elements of the Earth, both living and non-living, such as the atmosphere, hydrosphere, lithosphere, and biosphere.

The environment is a complex system that living things interact with and influence how they survive, develop and thrive. This includes biological elements such as plants, animals, microorganisms and their interactions, as well as physical elements such as temperature, light, water, soil, wind and topography.

Therefore, the relationship between the environment, human population and geological events is complex and multidimensional.

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what is the natural rate of nitrogen fixation in earth’s ecosystems?

Answers

Answer:

A reasonable upper bound for the rate of natural nitrogen fixation on land is thus about 140 Tg of N per year.

The environment can be arranged into different levels of organization. Which of the following shows a correct sequence (order) that proceeds from a smaller level of organization to a higher level

Answers

Organism

Population

biological community

ecosystem

biome

biosphere

_________________________________

Population is a group of organisms of d same species

A biological community is the population of organisms living together and interacting in a given area

Ecosystem is the interaction between living and non living organism in a community

Biomes are biological communities that are formed in response to a shared physical environment

Biosphere is the part of the earth that contains living organism

regulation of internal environment​

Answers

Answer:

The regulation of an internal environment is called homeostasis.

Explanation:

Homeostasis is when you can maintain a stable inner environment.

Answer:

interrnal environment

Which of the following best describes an antigen?

Answers

d.a protein that attacks foreign molecules

B. A recognition molecule on the surface of the cells.

What is antigen?

An antigen is a substance that is capable of triggering an immune response in the body. It is typically a foreign substance, such as a pathogen (e.g. a virus or bacterium), a toxin, or a non-infectious particle (e.g. pollen or dust), that is recognized by the immune system as being foreign and potentially harmful.

When an antigen enters the body, it is recognized by immune cells called B cells and T cells, which produce proteins called antibodies to help neutralize and remove the antigen. The antigen-antibody interaction is a key part of the body's immune response and helps to protect us against infectious diseases.

Antigens can also be present on the surface of our own cells, such as cancer cells or transplanted organs, and can trigger an immune response if they are recognized as foreign by the immune system.

Overall, antigens are important components of the body's immune system and play a critical role in protecting us against infectious diseases and other threats.

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