Read the scenario.

A biologist is studying golden frogs that live in cool streams running through the rain forests of Central America. The biologist conducts a survey of the population and counts over 100 frogs in one mile of stream. The biologist returns to the same location one year later and counts only 20 frogs in that same stretch of stream. The biologist wonders why there are suddenly so few golden frogs.

The biologist also observes that a mining company has set up a copper mine only a few miles from the stream. By reading studies on copper mining operations in other parts of the world, the biologist learns that the wastewater runoff from the mines is highly acidic and contains potentially toxic compounds.

Which question most closely relates to the biologist's observations and collected data?

Are the golden frogs succumbing to a fungal infection?

Did the golden frogs migrate to a new habitat?

Why was a copper mine built so close to the stream?

Is the runoff from the copper mine contaminating the golden frogs' stream and killing the frogs?

Answers

Answer 1

Answer:

The most likely answer would be D, Is the runoff from the copper mine contaminating the golden frogs' stream and killing the frogs?

Explanation:

The golden frogs live either close to the stream or in it, which means the acidity and toxicity could kill them.

Hope this helps, my apologies if I am uncorrect.


Related Questions

What is the major evidence for the punctuated equilibrium model of evolution?.

Answers

In evolutionary biology, punctuated equilibrium (also called punctuated equilibria) is a theory that proposes that once a species appears in the fossil record, the population will become stable, showing little evolutionary change for most of its geological history.

What is the most common symptom of amygdala lesions in humans?.

Answers

Answer:

Inability to recognize the facial expression of fear

Explanation:

Some common signs and symptoms following amygdala damage include: Inability to visually recognize surrounding objects. The tendency to inspect surrounding objects by smelling or chewing them. Irresistible need to explore the surrounding space and excessive reactions to visual stimuli

How can cells from the same organism have such different shapes and functions?

Answers

Answer:

As each cell differentiates, the DNA changes so that each type of cell has different DNA once it reaches maturity. B Mutations in the cells' nuclei lead to new combinations of DNA, resulting in different shapes and functions in the different types of cells.

Explanation:

Answer:

Because cells are not only characterized by by their genetic material and other interior components, but also by the genes they express. Cells have to fulfill multiple different functions to be able to build complex multicellular organisms. Differently expressed genes lead to different proteins made in the cell, which leads to different morphology, shape or function. For example melanocytes in the skin are highly specialized cells which mostly make the pigment melanin. Plasma cells on the other are highly specialised for making antibodies.

In photosynthesis, plants use chlorophyll to produce.

Answers

Answer:

carbohydrate also glucose known as the food for the plant and oxygen

Which process helps replace damaged skin cells?

meiosis

mitosis

fertilization
fusion

Answers

Answer:

1) growth and development

2) to heal wounds,cuts,etc.and  replace damage cells

3) to maintain the ideal surface area to volume ratio

                     ❕♥️HOPE IT HELP'S♥️❕

Answer:

Mitosis

Explanation:

Mitosis is a process of cell division that results in the formation of two new daughter cells. It plays a crucial role in living organisms. It helps to maintain the genetic stability and helps in increasing number of cells in body thus leading to growth.

Replacement of damaged cells is carried out by mitosis. Mitosis helps in the production of identical copies of the cells this helps in repairing the damages tissue or worn out cells. It creates new skin cells to replace read skin cells.

When charged particles of __________________ pass through the southern or northern
hemispheres of Earth they form Auroras.
A. coronal mass ejections B. solar flares
C. prominence D. solar winds

Answers

B. Solar flares

The auroras are caused by space dust particles reflecting and mixing with earth’s atmosphere

Neutrons are neutral. This means that
A.
neutrons are not involved in chemical reactions.
B.
neutrons do not have a charge.
C.
neutrons are neither acidic nor basic.
D.
neutrons do not have mass.

Answers

Answer:

The ansow is B: Netrons do not have a charge.

Answer:

its b

Explanation:

Biodiversity is described as Group of answer choices The influence of physical factors on an environment The range of different species in an environment The seasonal and daily changes in an environment The way species differ from one another

Answers

Answer:

the range of different species in an environment

Explanation:

hope this helps

Which biological process has genetic variation as a natural advantage?

budding
as_xual reproduction

s_xual reproduction

binary fission

Answers

Answer:

S**ual reproduction

Explanation:

mixing of DNA from two different germ cells

Which of these chemicals affect everyone differently?
Your answer:
O Carcinogens
O Teratogens
O Neurotoxins
O Allergens

Answers

Allergens because everyone has different reactions to them

Describe how urban development can increase flooding.

Answers

Answer:The changes in land use associated with urban development affect flooding in many ways. Removing vegetation and soil, grading the land surface, and constructing drainage networks increase runoff to streams from rainfall and snowmelt.

Explanation:

37) Most of Oxygen resource is from
photosynthesis that happen
in ..........
A.
rainforests
B.
soil
C.
ocean
D.
river and lakes

Answers

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Scientists estimate that 50-80% of the oxygen production on Earth comes from the ocean.

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37) most of oxygen resource is from photosynthesis that happens in..?

A. Rainforests
B. Soil
C. Ocean
D. Rivers and lakes

Answer: letter C

What type of physical weathering is caused by the expansion of water?

Answers

Answer:

Frost wedging

Explanation:

Is a natural result of the fact that water expands when it freezes.

frost wedging should be the answer

During which phase of meiosis do the sister chromatids line up across from each other in the center of the cell?.

Answers

Sister chromatids line up across from each other in the center of the cell in the metaphase II stage of meiosis.

What is meiosis?

Meiosis is the type of cell division that involves the formation of four daughter cells that are genetically different from one another.

The stages involved in meiosis are as follows:

Prophase I and IIMetaphase I and IIAnaphase I and IITelophase I and II

Chromosomes align at the equator of the cell at the metaphase stage. However, sister chromatids specifically line up at the cell equator at metaphase II of meiosis.

Learn more about meiosis at: https://brainly.com/question/16992029

Part C
When only one color of light reflects from a piece of paper, what happens to the other colors of light? Remember that
light is energy, and energy cannot be created or destroyed.

Answers

Answer:

they are absorbed

Explanation:

when one color is reflected on something, the rest of the colors are absorbed by it.

PLEASE HELP ME IM TIMED

Answers

Answer:

A. codominance

Explanation:

Codominance is in which at least two characteristics are involved together of a particular feature get expressed into an offspring.

Both the mother and father's type are expressed. The offspring with alleles A and B for blood type has type AB blood. The alleles are codominant -- neither one alone determines the blood type.

The rest of the choices do not fit the phenomena.

hope this helps!

All enzymes are examples of which type of organic molecule?.

Answers

Enzymes belong in the category of proteins
Answer: proteins

which of the following prosessies take a place in a cell nucles

Answers

Answer:

There are no given options, however the research I have done shows that the processes that take place within the nucleus of a cell are: DNA Replication (The creation of new DNA in preparation for cell division), and transcription (the creation of RNA copies of parts of a DNA sequence).

Explanation:

Hope this helps you :)

Within the ANS, the effects of the ______ division are often general and widespread, while in the _______ division the effects are more specific and local.

Answers

Answer:

I guess-

Sympathetic

Parasympathetic

Explanation:

The autonomic nervous system(ANS) has two main divisions: Sympathetic. Parasympathetic.

The above diagram illustrates how nature recycles what natural resources?

Answers

The diagram illustrates how nature recycles carbon through the various spheres of the globe.

Carbon cycle

The diagram illustrates the cycling of carbon.

Carbon is an important element in nature and cycles through various spheres of the globe.

One of the reservoirs of carbon is the atmosphere - it exists as carbon dioxide. The supply in the atmosphere is maintained by burning, respiration  and decay of living organisms, volcanic eruption etc.

Carbon is fixed into living organisms (the biosphere) via photosynthesis.

More on the carbon cycle can be found here:  https://brainly.com/question/1627609

Lifeforms have changed throughout Earth's geologic history. Scientists learn about these changes by studying the fossil record. For example, scientists have learned when different groups of organisms first appeared. These events can be placed within specific periods on the geologic time scale, which is shown below.


Fishes with jaws first appeared during the Silurian period, and dinosaurs first appeared during the Triassic period. Large mammals first appeared after both dinosaurs and fishes with jaws.

Using this information and the geologic time scale above, choose the period in which large mammals first appeared.
A.
Permian
B.
Ordovician
C.
Tertiary
D.
Cambrian

Answers

Answer:

C. Tertiary

Explanation:

mammals have fur unlike the others period animals

Tertiary is the period in which large mammals first appeared.

What is Tertiary period?

The Cenozoic era's initial geological phase is the tertiary, which is also known as the Paleogene and Neogene periods. Between 66 million and 2.6 million years ago, there was a geological epoch called the Tertiary.

The Cretaceous-Paleogene extinction catastrophe at the beginning of the Cenozoic Era marked the start of the Tertiary Geological Period, which lasted until the Quaternary Glaciation at the end of the Pliocene Epoch.

The tertiary period began approximately 66 million years ago with the extinction of the dinosaurs, and it ended when the Quaternary Period's ice ages started, or roughly 2.6 million years ago.

Therefore, Tertiary is the period in which large mammals first appeared.

To learn more about Tertiary period, refer to the link:https://brainly.com/question/8132166

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Do animals have more traits in common as adults, or as developing embryos? Explain your
answer.

Answers

Answer:

they do have a lot of traits in common as adult.

Wood project

Is this slime mold?

Answers

Yes, that is slime mold.

Answer:

Affirmative, that is slime mold.

In a mammalian visual system, visual information is integrated at ________.

Answers

Answer:

In a mammalian visual system, visual information is integrated at the lens

Explanation:

Why does fossil fuel use in the united states make the u.s. vulnerable to the political wishes of foreign countries? a. the us is a net exporter of fossil fuels. b. fossil fuels lead to global climate change. c. the us imports much of its petroleum from foreign countries which set the prices. d. all of the above. please select the best answer from the choices provided a b c d

Answers

The  US imports much of its petroleum from foreign countries which set the prices.

What are fossil fuels?

The trem fossil fuels refers to those fuels that are obtain from carbon by mining sucg as coal, crude oil and natural gas. The US often imports a large quantity of these fossil fuels friom other countries.

Hence, the US is  vulnerable to the political wishes of foreign countries because,  the  US imports much of its petroleum from foreign countries which set the prices.

Learn more about fossil fuels: https://brainly.com/question/22766730

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Answer:

C

Explanation:

look at the pic :)

Cellular ______ is all of the chemical reactions in cells.
Activity
metabolism
enzymes

Answers

Cellular Metabolism is all of the chemical reactions in cells.

Definition: Cell metabolism is the series of processes that take place in living organisms to sustain those organisms.

Hope that helps!

Answer:

metabolism

Explanation:

the sum of the chemical reactions that take place within each cell of a living organism and that provide energy for vital processes and for synthesizing new organic material.

You discover a new type of marine organism that has the kidneys of a fish but no gills. Based on what you know about other aquatic organisms, the newly discovered organism is _____ compared to the surrounding water.

Answers

Based on an understanding of other aquatic organism, the newly discovered organism is hypertonic compared to the surrounding water.

What is tonicity?

Tonicity refers to the ability of a solution to exert an osmotic pressure upon a membrane.

A tonic solution can either be;

Hypertonic solutionHypotonic solutionIsotonic solution

A hypertonic solution is a solution that has a high concentration of solute compared to its surrounding environment while hypotonic solution has a lower concentration of a solute compared to its surrounding environment.

According to this question, a new type of marine organism has kidneys of a fish but no gills. This means that the newly discovered organism is hypertonic compared to the surrounding water.

Learn more about hypertonic solution at: https://brainly.com/question/13886457

A chicken has 39 pairs of chromosomes and a human has 23 pairs of chromosomes. The four nitrogen bases (adenine, thymine, guanine & cytosine) are the same for both the chicken and human. What makes chicken DNA different from human DNA?

Answers

The amount of chromosomes the chicken has is different from the amount of chromosomes the human has ! Hope this helped

Richard Pyle turned to Bill Stone when he wanted to learn more about rebreathers and other diving technology.

OA. True
OB. False

Answers

Answer:

True

Explanation:

Evaluate your understanding with the following question: 4. Which statement best describes cell theory? a. Cells are part of complex organisms that work together to produce new cells. b. Cells perform a single life function, and most cells come from existing cells. c. Cells use energy from food to be able to perform life functions and work together to produce new cells. d. Cells are the basic unit of structure for all organisms, and all cells come from existing cells.​

Answers

Answer:

d. Cells are the basic unit of structure for all organisms, and all cells come from existing cells.

Cells are the basic unit of structure for all organisms, and all cells come from existing cells.​

Describes cell theory?

The cell theory states that all living organisms are composed of cells which are the basic unit of life and all life come from preexisting life. All living organisms are made up of cells i.e. unicellular and multicellular

So we can conclude that option D is the correct answer.

Learn more about cell here: https://brainly.com/question/13123319

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