PLS HELP A student has four snails, four sprigs of Elodea, eight test tubes of bromothymol blue, and two rooms (light and dark). The student wants to know what gases are produced by the snails and Elodea in light and dark conditions. Assuming the student only has time for one experiment, what setup will yield the most complete data? All test tubes contain bromothymol blue. Experiment 1: Light room with test tubes A to D. A contains 1 snail. B contains Elodea. C is empty. D contains 1 snail and Elodea. Dark room with test tubes E to H. E contains 1 snail. F contains Elodea. G is empty. H contains 1 snail and Elodea. Experiment 2: Light room with test tubes A to D. Each test tube contains 1 snail. Dark room with test tubes E to H. Each test tube contains Elodea. Experiment 3: Light room with test tubes A to D. Each test tube contains 1 snail and Elodea. Dark room with test tubes E to H. Each test tube is empty. Experiment 4: Light room with test tubes A to D. A contains 2 snails and Elodea. B contains 1 snail. C and D are empty. Dark room with test tubes E to H. E contains Elodea. F contains 1 snail and Elodea. G and H are empty. a. Experiment 1 b. Experiment 2 c. Experiment 3 d. Experiment 4

Answers

Answer 1
I have no clue I can’t even read all of that
Answer 2

Answer:

Its A Experiment 1

Explanation:


Related Questions

Explain what happens at each of the following boundaries: ocean/ocean
convergent, bcean/continental convergent, continental/continental
convergent, divergent and transform plate boundaries.

Answers

Answer:

The particularly severe winter of 1777-1778 proved to be a great trial for the American army, and of the 11,000 soldiers stationed at Valley Forge, hundreds died from disease. However, the suffering troops were held together by loyalty to the Patriot cause and to General Washington, who stayed with his men.

Explanation:

Explanation:oceanic plates are formed at divergent boundaries mainly at mid ocean ridges. The material that is poured out are basaltic lave in nature. Basalt is denser and heavier than the granite that makes up continental plates.

Oceanic plates are much thinner than the continental plates. When an oceanic plate meets a continental plate at a convergent boundary the oceanic plate is forced under the continental plate and destroyed. The convergent boundaries between ocean and continental plates create subduction zones. The oceanic plate is pushed under the continental plate and melted. This melted material becomes magma that may reach the surface as volcanos, or solidify under the surface as granite.

Continental plates are much thicker that Oceanic plates. At the convergent boundaries the continental plates are pushed upward and gain thickness. The rocks and geological layers are much older on continental plates than in the oceanic plates. The Continental plates are much less dense than the Oceanic plates. The Granite and recycled material are much lighter than the heavy basalt layers of the ocean plates.

If pharmaceutical researchers want to learn how to keep cancer cells from dividing uncontrollably, which
approach are they most likely to try?

Interrupt some stage of the cell cycle, such as the formation of the spindle that separates chromatids.

Develop strong dyes that will be able to color the chromosomes for good visualization.

Provide dangerous levels of radiation to irradiate the
cancer cells in a human being.

Starve the cancer cells by starving the patients, thereby reducing chances of cell division.

Answers

Answer:

c

Explanation:

Chemotherapy i.e. use of drugs to destroy the cancer cells by inhibiting their growth and division. Therefore, option (A) of interrupting stages in cell cycle is correct.

What do you  understand by chemotherapy?

Chemotherapy is a medication that employs strong chemicals to destroy rapidly developing cells in your body. Chemotherapy is most commonly used to treat cancer because cancer cells grow and proliferate significantly faster than the rest of the body's cells. There are several chemotherapy medicines available.

Taxol (Paclitaxel) and other drugs that poison microtubules and impede the mitotic spindle have been used extremely efficiently in chemotherapy. This prevents cancer cells from proliferating and kills them.

Therefore, pharmaceutical researchers uses drugs to learn cancer treatment. Option (A) is correct.

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Which type of microscope allows you to look at 3D objects? *

compound
stereoscope
magnifying
simple

Answers

Answer:

Stereoscope

Explanation:

Stereo Microscopes enable 3D viewing of specimens visible to the naked eye.

Please HELP ASAP!!! I NEED HELP ON THESE TWO QUESTIONS

Answers

Answer:

Number 4, and number 5 are C.

Explanation:

The amount of water affects the mass and height as shown on the table. The graph clearly shows that plant 1 goes up at a constant rate, while plant 2 grows a little at first, but then stops.

As seen from Earth, what causes the Moon to change its apparent shape throughout the month?​

Answers

Answer:

The Moon doesn't emit (give off) light itself, the 'moonlight' we see is actually the Sun's light reflected off the lunar surface. So, as the Moon orbits the Earth, the Sun lights up different parts of it, making it seem as if the Moon is changing shape.

Explanation:

How do I set up and collect data in a data table and identify trends?

Answers

Answer:

Explanation:

To collect information you need to read and understand why it works and make an analysis of what you understood about the information in the table

and this is how you find the trends. A trends can often be found by establishing a line chart. A trendline is the line formed between a high and a low. If that line is going up, the trend is up. If the trendline is sloping downward, the trend is down.

What is the most basic unit of life?

Answers

Answer:

cell

Explanation:

cell is the basic unit of life

Which organic compound is not found in the cell membrane?

Answers

Answer: Lignin

Explanation:

What is one way that matter moves from the atmosphere to the geosphere

Answers

Answer:

Energy is transferred through the oceans, the atmosphere, and the geosphere by convection. Energy is transferred between the geosphere and the atmosphere by conduction.

Plz Help!

Which is an example of a trace fossil?

A) animal burrow
B) skin of organism
C) preserved bone
D) petrified wood

Answers

C preserved bone because none of the others were enough

Answer:

a

Explanation:

Which cards are nucleic acids?

Answers

Answer:

Card 33

Explanation:

I hope this helps you :)

20. What would happen to a paramecium that is placed in a jar of syrup?

Answers

Answer:

It will shrink.

Explanation:

When  a solution contains more solute than the surrounding environment  where ,it  is located,it is said to be hyper tonic.Such a solution is of higher concentration,and therefore contains little water.

Syrup is an example of an hype tonic solution.Corn syrup  as an example  contains more solute in it,

Paramecium is unicellular organisms which is aquatic in habitat,therefore compare to the syrup of high solute it is hypo tonic.

Thus when placed in syrup,Paramecium loses water by osmosis,since water from the Paramecium at lower concentration would move out through the paramecium membrane ,as semipermeable membrane,into the syrup,of higher concentration

The paramecium will eventually shrink,and die,due to dehydration.

OW Dia Planets Form?
Question 7 of 10
A rock falling through Earth's atmosphere from outer space is called a
Answer here
SUBMIT

Answers

Answer:

asteroid

Explanation:

it is called asteroid andThe various planets are thought to have formed from the solar nebula, the disc-shaped cloud of gas and dust left over from the Sun's formation. The currently accepted method by which the planets formed is accretion, in which the planets began as dust grains in orbit around the central protostar

How does diagnosis explain why 1 ml of liquid from her small intestine digested protein slowly but 1 mg of her pure protease protein normally?

Answers

Answer:

Due to the absence of proteolytic enzymes.

Explanation:

The study diagnosis that small intestine digested protein slowly due to the absence or decrease quantity of proteolytic enzymes in the small intestine. Proteolytic enzymes are responsible to speed up the digestion process and after digestion amino acid is produced which is directly injected into the blood that is used by the body for the formation of muscles.

Which feature of a bacterial cell is attacked by many antibiotics?
cell membrane
cell wall
plasmids
cytoplasm

Answers

Answer:

cell wall

Explanation:

How can we apply population models to real world data?

Answers

Answer:

use mathmatical representation to support explanation of factors that efect carrying capacity of ecosystems at different scales as support and revise evidence about factors affecting bio-diversity and populations in ecosystems of  different scales

Explanation:

Population models have been used to analyze and study population dynamics. It can be applied to real-world data to understand the carrying capacity of the ecosystem and factors affecting biodiversity.

What is carrying capacity?

The carrying capacity of the ecosystem is defined by the number of individuals or the population that can be entertained in a specific geographical area at a particular time.

The carrying capacity, population dynamics, biological invasions, conversation, and biodiversity can be explained by the population model.

The model describes the mechanistic and mathematical representation that allows a better understanding of dynamics and statistics. This is applied in the real world to understand the carrying capacity of the ecosystem.

Therefore, the population model can be used to analyze the carrying capacity.

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dividing tissues are also called
1. meristematic tissue
2. epithelial tissue
3. both a and b
4. all of the above
pls answer quickly ....

Answers

Answer:

1. meristematic tissue

Explanation:

they are cells that have the ability to divide

what dose it mean when we say water molecules break apart

Answers

answer: A water molecule consists of two atoms of hydrogen linked by covalent bonds to the same atom of oxygen. H2O molecules connect with from one hydrogen to another molecule.

explanation: This bond is very weak. Hydrogen bonds are formed easily when two water molecules come close together, but are easily broken when the water molecules move apart again.

atoms in covalent bonds___their electrons​

Answers

Answer:

gain there electrons that they didn't have before

Can you help me with the question listed in the pictures below? Please and thank you. Will mark BRAINLIEST!!!

Answers

Answer:

1. Recycle

2. Plant trees

3. Save water and electricity

Explanation:

Hope this helps!

Answer:

Three ways you can help the environment while at school are put paper and plastic in recycling bin, turn off lights in rooms not being occupied or use half the lights in a room instead of all on at once, and turning off sinks that may be left on in restroom.

Explanation:

Which of these plant cell structures is also found in a prokaryote?

Answers

Answer:

D. Cell wall

Explanation:

Cell wall is also present in prokaryotes it is made of peptidoglycan layer.

What are two abiotic and two biotic conditions in a coral reef that provide the conditions necessary for it to have high biodiversity?

Answers

Answer:

vbfxb

Explanation:

vgjjg


What is the main function of endoplasmic reticulum in a cell

Answers

Answer: The endoplasmic reticulum (ER) is a large, dynamic structure that serves many roles in the cell including calcium storage, protein synthesis and lipid metabolism

Explanation: Hope this helped !

¿Que aspecto debemos considerar para desidir el uso mas adecuado de lagunos materiales en la satisfacción de necesidades humanas sin afectar la salud y el medio ambiente?

Answers

Answer:

El efecto del material sobre el medio ambiente es el aspecto a considerar.

Explicación:

Se debe verificar la estructura química del material o de qué elementos se forma un material para conocer el efecto de estos materiales en la salud y el medio ambiente de las personas. Si los materiales no afectan el medio ambiente y la salud humana, el ser humano puede utilizarlos para satisfacer sus necesidades. Si el material se forma a partir de elementos tóxicos o elementos que no se descomponen por microbios, entonces este tipo de materiales son peligrosos tanto para la salud humana como para el medio ambiente porque estos materiales contaminan el medio ambiente y debido a esta contaminación la salud humana se ve gravemente afectada.

15 points+ brainliest!! please help i need this done asap :(!

Answers

independent variable is when u have a variable and it stands alone, and is changed or controlled in a experiment. (the liquid used to measure a plant) The dependent variable is the what u are measuring(height, time) . The dependent caribe is depending on the independent variable! The difference is that fact that independent variable dosent need anything to determine the correct answer and dependent dose. they also stand for different things.

it’s important for scientist to publish a description of procedures along with results because it shows how the scientist came up with the results, and shows they were just saying what they thought was right , they have proof, and can go back and explain how the procedures correlate with the data/ results.

What makes it possible for us to be able to live on the earth?

Answers

Answer:

oxygen and H20

Explanation:

...AIR AND WATER

Answer: homeostasis

Explanation: homeostasis is the regulation and maintenance of out internal environment, this also includes gas exchange, (oxygen to carbon dioxide) which enables the ability to breathe. If our body would not be able to maintain homeostasis, every system in the human body would not be balanced, resulting in a disabled environment.

Which of the following are health issues related to algal blooms?
i. rashes
ii. allergic reactions
iii. intestinal problems
A. i only
B. ii and iii only
C. i, ii, and iii
D. i and iii only

Answers

Answer:

C. i, ii, and iii

what causes a population to reach is carrying capacity

Answers

Answer:

Good well fare taxes and pricing

Explanation: not only that but benefits with health and cost for homes and the environment

Yeah exactly what that boy or girl said^^

QUICK CHECK
Choose the correct measuring device for gathering
data from the list of tools in the drop-down menu.
temperature of the water
heartbeats per minute
volume of liquid
time
DONE
distance across the pond

Answers

Answer:heart monitor

Stopwatch

Digital tape measure

Thermometer

Graduated cylinder

Explanation:

Measuring devices are used as follows -1. Thermometer, 2. Heart monitor, 3. Measuring cylinder, 4. Clock, 5. Tape measure

What are measuring devices?

The instruments that are used for the measurements of various specific items based on the laws and the theories of measurement are called measuring devices.

Specific measurements have specific measurement devices. These measure the value based on the specific unit of the measurement.

For example, an inch tape measures the length of something in inches. It also has scales of centimetres and meters.

For the measurement of length, scales and tape measures are used.

For the measurement of time, clocks are used.

For the measurement of volumes, graduated cylinders are used.

For the measurement of temperature, thermometers are used.

Therefore, the measuring devices vary according to the function it needs to perform. In this case, 1. Thermometer, 2. Heart monitor, 3. Measuring cylinder, 4. Clock, 5. Tape measure.

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3. The table below lists three characteristics of an atom of an element. An
atom of which element is described by the data in the table? *
Characteristics of an Element
Number of
Protons
Number of
Neutrons
Number of
Valence Electrons
37
48

Answers

Answer:the answer is Rubidium

Explanation: quizzzzzlm app thing also my teacher told me. I got you fa

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