Researchers propose a model to explain variation in phytoplankton cell sizes in a marine
environment. They base their model on the idea that smaller cells absorb nutrients more
efficiently. The researchers predict that the mean diameter of phytoplankton cells will
change by 50 micrometers for every 5-kilometer increase in distance from the shore
because of a gradual decrease in nutrient availability. To test their model, the researchers
determine that the phytoplankton cells found closest to shore have a mean diameter of
900 micrometers.
Based on the model, what will be the mean diameter of the phytoplankton cells that are
found 25 kilometers from shore?

Answers

Answer 1

Answer:

650 micrometers

Explanation:


Related Questions

I need help with this so hard emt class

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Answer:

I can give u a advice

Ctrl + U

Click this and go to da bottom of page u can see da answers there

If u have any questions ask me

Which distance is the greatest

Answers

Answer:

you have to be more specific we don't know what you are talking about.

Explanation:

members of the animal and plant kingdoms are eukaryotic and multicellular. What is one way you can differentiate between a plant cell and an animal cell

Answers

Answer:

Plant cells have cell walls.

Explanation:

While both plant cells and animal cells have cell membranes, only plant cells have a cell wall, the hard outer shell of the cell.

Answer:

plant cells have cell walls and chlorophyll

Explanation:

animals do not have cell walls or chlorophyll so if the cell has either those two things, you know it's a plant cell.

What is the Richter Scale?

Answers

Answer:

The Richter scale is a numerical scale for expressing the magnitude of an earthquake on the basis of seismograph oscillations. The more destructive earthquakes typically have magnitudes between about 5.5 and 8.9; the scale is logarithmic and a difference of one represents an approximate thirtyfold difference in magnitude.

Explanation:

Answer:

a numerical scale for expressing the magnitude of an earthquake

Explanation:

Ancient Greek philosophers spent lots of time thinking about science and imaging explanations for the natural world. What part of the scientific process did they need to do

Answers

Answer:

Experiments

Explanation:

The ancient Greek philosophers spent more time philosophising and thinking about scientific explanations to phenomena in the natural world.

How ever, they relied solely on reasoning while attempting to explain scientific observations. Contemporarily, science is highly empirical. The scientific process can only be complete when scientific observations are subjects to rigorous experiments in order go determine the actual relationship between variables and provide better explanation for scientific observations.

Hence the ancient Greek philosophers should have used experiments rather than sole reason in proffering scientific explanations to natural phenomena.

Answer:

Experiments

Explanation:


The ancient Greek philosophers spent more time philosophising and thinking about scientific explanations to phenomena in the natural world.

4. Which level of organization is made of similar cells working together?
For example, many muscle cells working together.

Answers

The level of organization would be a tissue. Tissues are the second level of organization made up of many cells working towards a common goal/ function.
Tissues are the body cells that work together

Which list below correctly shows the levels of organization in an organism from left to right? organs, tissues, systems, cells, organisms tissues, cells, systems, organs, organisms organisms, cells, tissues, organs, systems cells, tissues, organs, systems, organism​

Answers

Answer:

Cell-tissue-organ-organ system and finally an organism

Explanation:

The list that correctly shows the levels of organization in an organism is from left to right is  :

Cell --> Tissue ---> Organ ----> System -- > Organism

The cell is the basic unit of life, a group of similar cells performing similar functions make up a Tissue. While tissues perform more specialized functions when compared to cells.

Tissues make up an organ while a system like Digestive system , respiratory system, reproductive system are made up of a group of organs performing similar functions. The collection of all  systems make up an organism.

Hence we can conclude that the  list that correctly shows the levels of organization in an organism is from left to right is  Cell --> Tissue ---> Organ ----> System -- > Organism

Learn more : https://brainly.com/question/20203167

Hummingbirds can hover in midair by flapping their wings 15-80 times per second depending on the species. Which organelle would you find an abundance of in the muscles of their wings?

Answers

Answer:

Mitochondria

Explanation:

This vigorous activity is powered by organelles known as mitochondria.

Which statement describes a similarity between asexual reproduction and sexual reproduction? Both processes involve fertilization. Both processes involve cell division. Both processes produce genetically identical offspring. Both processes require two parents.

Answers

Answer:

The correct answer is B. Both processes involve cell division.

Explanation:

Both asexual and sexual reproduction involve cell division; they are means of creating offspring.

Only sexual reproduction involves fertilization, so we know that choice A is incorrect.  Only asexual reproduction produces genetically identical offspring, so choice C is also incorrect.  Finally, only sexual reproduction requires two parents, so choice D is not correct either.

This leaves us with choice B as the correct answer.

Hope this helps!

Answer:

Answer is B

Explanation:

I got 92%, so there's a 2/25 chance that this answer is wrong, pls tell me if it's wrong

Viruses use host cells to replicate. How do viruses "recognize" host cells?

Answers

Answer:

Enveloped eukaryotic viruses recognize host cells through specific interactions between viral envelope proteins and host cell surface receptors.

What is a disadvantage of a 2D model of the digestive system?

Answers

Answer:

The disadvantage of 2D model of the digestive system is that it decreases cell to cell interaction and it is not a very important biological model.

Explanation:

The 2D model does not show quality similarity and resemblance to the main digestive system and also fail to reveal the interaction of cell surfaces of each other, it does not provide the quality detail of biological systems in digestive systems and this model is not very important or relevant biological model because It does not provide quality detail.

Which of the following substances would you expect to find in a cell that uses active transport?

a. many mitochondria near plasma membrane
b. many lysosomes throughout the cell
c. a higher concentration of sodium ions in the cell
d. an extensive rough E.R. throughout the cell
e. filled with ribosomes

Answers

Answer:

a. many mitochondria near plasma membrane

Explanation:

What happens to blood once oxygen hits and why?

Answers

Answer:it changes colour

Explanation:

When blood passes through the lungs, the hemoglobin absorbs oxygen from the air we breathe and turns bright red. Our heart then pumps this blood all over the body. When it reaches its destination, the oxygen is released from the hemoglobin, and the hemoglobin turns a darker red-brown.

Describe two examples of non-living things that have one or more of these characteristics of life. ​

Answers

Air: it moves, but is not alive
Thermometer: responds to stimuli (temperature), but isn’t alive
A vehicle - moving and works on energyThermometer - responds to temperature (stimulus)

What are the characteristics of living organisms?

Living organisms are distinguished from non-living things as they have the property of life.

Living organisms have important features that differs them from non-living things. For example., growth, reproduction, movement, sensitivity and death are few among many.

Growth is the unique property where a living organisms grows in size and volume.

Reproduction is another important characteristic where a living organism reproduces one of its own kind.

Living organisms move from one place to another which is not observed in non-living things.

Living organisms are sensitive to stimulus from the outer environment and respond accordingly. The stimulus can be touch, smell, temperature etc.

Living organisms have the characteristics of aging and senescence. They  ultimately die.

Therefore, living organisms are different non-living things in many distinct ways.

Learn more about living organisms, here:

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Classification systems:
Can somebody help me please

Are all the same

Are all different

May vary with the taxonomists

None of these


Answers

Explanation:

Classification system are system with distribution of classes created according to common relations or affinities.

1) A class collected water samples from a nearby pond and wants to observe the samples for
microorganisms. Which microscope would be the most appropriate for the students to use?
A. Dissecting microscope
B. Compound light microscope
I
C. Transmission electron microscope
D. Scanning electron microscope

Answers

Answer:

Compound light microscope

Explanation:

This is the ideal microscope because it requires the passage of  harmless beam of light through the specimen.Since the pond contain living creatures this is best to use.

C and D both require the transmission of beam of electrons through a sample. D depends on the reflection of the electron  after scanning the specimen surfaces and sent this to the lenses of the observer.(C)involved the  passing of the beam of electrons through the specimen the interaction of the electrons with the atoms in the specimen(,therefore in both cases  these specimens can not be wet and living.

The specimen should be dry in both cases and therefore non -living ,because the chamber for the specimen must be a vacuum,and living organism can not survive in the vacuum. Thus pond water can not be used as specimen because the specimen in the water but me be living.

What is lost to the environment at each of the trophic levels of this ecosystem?

Answers

Answer:

90% of energy

Explanation:

only 10% of energy is passed on to the next trophic level.

Review what you know about the Activation Energy Graph for enzyme reactivity:
summarize in 3 statements in the space to the right of the graph.
Pls answer ill give brainliest if its on top of your account tag

Answers

Energy is greater when a enzyme is not used when a enzyme is stimulated uses less energy for same task and gets to overall energy release faster

A molecule of
is shaped like a double helix, which
makes it look like a spiral staircase,

Answers

Answer:

DNA

Explanation:

dna has a double helix structure. making it look like a spiral staircase

BRAINLIEST!! Are frogs amphibians or reptiles?

Answers

Answer:

amphibians

Explanation:

amphibians are organisms that can survive both in and out of water

Answer:AmphibiansHope this helps, have a great day, stay safe, and positive!!:)

As a scuba diver descends toward the bottom of the ocean, she experiences the sensation of her ears "popping." Based on your observations from the Can Crush Lab, why would this happen?
A. Decreased pressure inside the diver's oxygen tank causes pressure on the diver's ears.
B. Increased pressure inside the diver's oxygen tank causes pressure on the diver's ears.
C. Pressure increases on the diver as the diver descends deeper underwater.
D. Pressure decreases on the diver as the diver descends deeper underwater.

Answers

Answer:

C. Pressure increases on the diver as the diver descends deeper in the water.

Explanation:

Due to the pressure of the water on the diver she feels the pressure on her ears. Just like the same feel of going up a steep hill.

Answer:

C. Pressure increases on the diver as the diver descends deeper in the water.

Explanation:

in eukaryotic cells, dna replication occurs in the

Answers

dna replication occurs inside the nucleus :)

Answer:

inside the nucleus

Explanation:

dna replication in eukaryotic cells occurs in the nucleus

A scientific observation is different from a inference. An inference involves a degree of probability that an scientific observation does not. Elaborate on this statement.
A) An inference is a statement that goes beyond what can be observed.
B) An inference provides the closest approach to certainty without actual observation.
C) An inference is a prediction based on new knowledge that you acquire from research.
Eliminate
D) An inference is the result of running one or more tests about what you believe to be true.

Answers

Answer:

C) An inference is a prediction based on new knowledge that you acquire from research.

Eliminate.

Explanation:

ikk..........

Answer:

A) An inference is a statement that goes beyond what can be observed

The first step of the scientific process is
A. Making an observation
B. Testing a hypothesis
C. Communicating your findings in a journal

Answers

Answer:

A. Making an observation

Explanation:

Before you can communicate findings, you first need to have findings. And before you can test a hypothesis, you first need to come up with a hypothesis, which can be done by first making an observation.

A student performed a lab investigation to determine the effect of temperature on the heart rate of a water flea. What is the independent variable in the investigation? * o specie of flea O temperature O heart rate N O size of flea answer​

Answers

Answer:

B. Temperature

Explanation:

The heart rate depends on the temperature so the heart rate is dependant and the one that changes is independant

Where would Igneous rocks that have crystals that are small, like "salt and pepper" have
cooled?

Answers

Igneous rocks and crystallizes at the surface of the earth.

What's the independent and the dependent variable ??

Answers

Answer:

ruler

Explanation:

The independent variable is the temperature and the dependent variable is the bacterial growth

Which of the following pairs is not a correct monomer/polymer pairing?
A. Monosaccharide/polysaccharide.
B. Amino acid/protein.
C. Triglyceride/cellulose.
D. Nucleotide/DNA.
E. Nucleotide/RNA.

Answers

C, triglyceride and cellulose

triglycerides make up lipids. cellulose is not a lipid, but a carbohydrate. carbohydrates are made from sugars :)

Answer:

He is right i took the test

Explanation:

Anabolic steroids are used to build muscle mass quickly. Why are they called “anabolic?”

Answers

Answer:

Anabolic steroids are synthetic, or human-made, variations of the male sex hormone testosterone. The proper term for these compounds is anabolic-androgenic steroids. "Anabolic" refers to muscle building, and "androgenic" refers to increased male sex characteristics. Some common names for anabolic steroids are Gear, Juice, Roids, and Stackers.

80 POINTS
What does Eureka mean, and who is famous for using the word and why?
What was so clever about what Archimedes did?

Answers

Archimedes has gone down in history as the guy who ran naked through the streets of Syracuse shouting "Eureka!" — or "I have it!" in Greek. The story behind that event was that Archimedes was charged with proving that a new crown made for Hieron, the king of Syracuse, was not pure gold as the goldsmith had claimed.hopes this helps

Answer:

Explanation:hhjnj

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