Answer:
A marine biologist study organisms from minute phytoplanktons to huge and gigantic blue whale. A marine ecosystem contains thousands of species of organisms that are study topic of a marine biologist.
Marine biologists study the interaction of these species with their environment. The non-living things that scientific study is about the effect of change in temperature, pH, oxygen quantity, light, acidity, salinity on marine species.
Some questions that biologist ask about living things they study are :
- how many marine species are in the endangered list?
- what is the role of a species in its ecosystem?
-how the extinction of a species affects the food chain in the ecosystem?
Explain how the data answered the essential question. Use the following questions to guide your thinking and your answer.
Answer:
There is not enough detail or material to make my answer, i'ts unfortunate but i am unable to answer this question
Explanation:
Answering scientific questions with data involves justifying the relevance of the data collected, making decisions based on patterns observed, and stating conclusions clearly. Discrepancies between expected results and actual findings can lead to discussions on experimental design and data reliability.
To analyze the data and answer how it addressed the essential question, we begin by looking at the types of data collected. Justifying the selection of data involves discussing why this data is appropriate for answering the scientific question at hand. For instance, in an experimental context, quantitative data from measurements or qualitative observations may be gathered to test a hypothesis.
After collecting and graphing the data in an experiment, you then make decisions and conclusions. To state your decision, you must determine whether the data supports or refutes your initial hypothesis based on the patterns observed. Then, to state your conclusion, craft a complete sentence summarizing these findings. This conclusion may confirm or differ from expected results, prompting discussion on possible reasons, such as experimental error, assumptions, or the robustness of the data.
In making your profile and examining the data, it's essential to engage in discussions, whether with a partner or in a group. By doing so, you ensure varied perspectives and a thorough understanding of the data's implications. This collaborative analysis culminates in sharing results with the class, fostering a deeper knowledge of the importance of data interpretation in scientific inquiry.
What tests were able to determine when continental crust was formed? A. Potassium-argon dating and half-life isotopes B. Relative dating and carbon-prototyping C. Stratigraphic measurement and argon-aluminum dating D. Stratigraphic measurement and strontium-rubidium dating
Stratigraphic measurement and strontium-rubidium dating are the tests that can determine when continental crust was formed.
Explanation:The correct answer is D. Stratigraphic measurement and strontium-rubidium dating. Stratigraphic measurement is the study of rock layers and the sequence in which they were formed. It can provide information about the relative ages of rocks. Strontium-rubidium dating is a radiometric dating technique that uses the decay of rubidium-87 into strontium-87 to determine the age of rocks and minerals.
Stratigraphic Measurement: This method involves studying the sequence and layering of rocks (strata) in a particular area. It relies on the principle of superposition, which states that in an undisturbed sequence of rock layers, the oldest rocks are at the bottom, and the youngest are at the top. By analyzing the relative positions of different rock layers and the fossils contained within them (biostratigraphy), geologists can establish a relative timeline of when these layers were formed. It helps determine the relative order of events without providing specific numerical ages.
Final answer:
Potassium-argon dating and half-life isotopes (A) are methods used to determine the age of continental crust, especially effective in dating volcanic rocks and older formations.
Explanation:
The formation age of continental crust can be determined through various radiometric dating techniques. The correct answer to the student's question is A. Potassium-argon dating and half-life isotopes. These methods are based on the principle that some radioactive isotopes decay at a constant rate over time. Potassium-argon dating is particularly useful for dating volcanic rocks, as potassium-40 decays into argon-40 with a known half-life. Another key method mentioned, the rubidium-strontium dating, which uses the decay of rubidium-87 to strontium-87, is also effective in dating older rock formations.
Rubidium-strontium dating is not explicitly listed in the options, but it's within the spirit of the given data, illustrating that these techniques measure the age of rocks by analyzing isotope ratios. The data collected on rubidium and strontium isotopes from the Isua region in Greenland, for example, can be used to date the rocks by examining the decay of these isotopes.
What is the difference between being a night person and a morning person
A night person is more active and awake at night whilst a morning person is the opposite.
Answer:
Night owls tend to stay up later at night (given the name) and it is harder for them to wake in the morning or early in the morning.
Explanation:
During the past 150 years in the United States, how did energy
consumption compare to population growth?
Answer:
Cause the more we made engery and find oil we made a huge population growth cause of what we could do.
Explanation:
Answer: Energy consumption has outpaced the population growth because of helpful inventions like bulb and automobiles.
Explanation:
During the past 150 years the in the United states the energy consumption has increased a lot. As global population grew from about 500 million to 7 billion.
The energy consumption has outpaced the population the population growth. This has increased the carrying capacity and allowed the population to grow exponentially.
There has been many invention like bulbs and automobiles that helped in population growth.
The change that occurred in peppered moths is an example of
a. overproduction
b. natural selection
c. migration
d. isolation
Answer:
I think it's D, but it could be B.
Explanation:
Answer:
B. natural selection
Explanation:
when a species needs to breed the males often compete and the stronger of them usually prospers, causing them to be more likely to breed.
What is emigration?
A. when animals move into an ecosystem
B. when animals die in an ecosystem
C. When animals leave an ecosystem
D. When animals are born in an ecosystem
When animals leave an ecosystem is emigration. thus, option C is correct.
What is emigration?The permanent change of residence by an individual or group is called as emigration.
Permanent emigration represents a loss of population in the place of origin. Whether this loss translates into a long-run reduction in population size depends on the age and gender composition of emigrant flows, and whether birth and survival rates rise in response to the loss of population.
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Photosynthesis converts light energy to chemical
energy.
Which molecules are the end product of this
transformation of energy in this reaction?
Answer:
Glucose, 2 oxygen
what are some possible consequences of preventing prescribed burns and natural wildfires
Answer:
Just to name a few...
- The soil around the forest may start to erode
- Lose its mineral wealth and resources
- If not controlled, plant life can take over buildings or homes.
Explanation:
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Preventing prescribed burns and natural wildfires can lead to increased risk of catastrophic wildfires, ecological disruptions, and affect public safety and resource management decisions.
Possible consequences of preventing prescribed burns and natural wildfires:
Increased risk of catastrophic wildfires: Suppressing fires can lead to a buildup of flammable material, making forests more vulnerable to destructive fires in the long term.Ecological changes: Fire exclusion can disrupt forest ecosystems, affecting forest structure and function.Public safety and resource management: Decisions on fire management can impact personal liability, career implications, and long-term risks to ecosystems and communities.Which statements describe continental crust? Select the three correct answers (apex)
A. It is formed at some of volcanic activity on the ocean floor
B. It is between 25 and 70 km thick
C. It is made of all types of rocks
D. It contains silicate minerals high in sodium, potassium, aluminum and calcium
E. It is relatively young (less than 180 million years old)
Answer:
B, C, D
Explanation:
The following statements are true regarding the continental crust;
It is between 25 and 70 km thick
Its made of all types of rocks
It contains silicate minerals high in sodium, potassium, aluminum, and calcium
Answer: Option (B), (C) and (D)
Explanation: Continental crust is a thick plate that comprises of sedimentary, metamorphic and igneous types of rocks. They are less denser compared to the oceanic crust and usually have a thickness of about 35-40 km, and increases upto 75-80 km at the mountain ranges. It often contains silicate minerals, that are mainly enriched in sodium, aluminium, calcium and potassium.
Thus, the correct options are mentioned above.
What’s the role of oxygen in cellular respiration?
Answer:
if oxygen is present aerobic respiration takes place and pyruvate produced in glycolysis in cytosol enters into mitochondrion for further oxidation through kreb's cycle
Cellular respiration is the process through which cells generate energy. Although other species, such as yeast or bacteria, don't necessarily require it, our body cells require oxygen to carry out this activity.
What oxygen role in cellular respiration?They can produce energy in different ways. However, since the main topic of this lesson is the function of oxygen, we'll stick with animal cells, such as those found in human body.
Cellular respiration takes place within every body cell. They transform carbon dioxide and glucose, a substance that is present in meals, into ATP (adenosine triphosphate), or cellular energy.
Despite the fact that this process can be described by a single equation, there are really a number of minor processes that must be completed before we may use oxygen to produce ATP.
Therefore, Aerobic respiration occurs if oxygen is present, and pyruvate produced during glycolysis in the cytosol enters the mitochondrion for further oxidation through the Kreb's cycle.
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Which organism is not limited by size because of its structures and life cycle? firefly octopus tree frog orca
Answer:
The correct answer is an orca.
Explanation:
Have a nice day! :)
Orca organism is not limited by size because of its structures and life cycle. So, the correct option is D.
What is Life cycle?Life cycle is defined as the biological life cycle which is a series of changes that an organism undergoes which returns to the initial state. The concept is closely related to life history, development, and ontology, but differs from them in its emphasis on renewal.
A life cycle is also known as circle of life because animals and plants are born, grow into adults, reproduce and then die but their children then continue their life cycle where the pattern is repeated again and again. Repeats, sometimes for millions of years which shows the pattern as a circle helps us see how it repeats. Organism depends on life cycle along with structure due to limitation of its size such as firefly, octopus, etc,
Therefore, the correct option is D.
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Which of these is a process during which the hydrosphere interacts with the exosphere?
A. Solidification of water into ice
B. Absorption of rainwater by soil
C. Absorption of heat in lakes and oceans
D. Condensation of water vapor into water
Answer:
The correct answer is C, absorption of heat in lakes and oceans.
Explanation:
The hydrosphere represents all water on earth, while the exosphere represents the outer-shell of our atmosphere(pretty much space). With the sun coming from space, and the water (lakes and oceans) on earth absorbing that heat, it would create an interaction between the exosphere and hydrosphere.
Between the given options, condensation of water vapour into water is the best example of a process during which the hydrosphere interacts with the exosphere. The hydrosphere is mainly ground-level water, and the exosphere is the outermost atmospheric layer.
Explanation:The hydrosphere mainly refers to liquid and solid water on Earth's surface, and the exosphere represents the outermost layer of the Earth's atmosphere. None of the options (A-D) truly exemplify an interaction between the hydrosphere and the exosphere because they mostly involve interactions between the hydrosphere and other parts of the Earth's system.
However, if we had to choose one, the best fit might be D. Condensation of water vapour into the water as this involves water in the atmosphere, possibly extending to the exosphere, transforming into a form that interacts with the surface hydrosphere.
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a rational expression has been simplified below. (x-5) (x+1)/3(x+1) = x-5/3 for what values of x are the two expressions equal
Answer:
All real numbers except -1
Explanation:
apex
All are real numbers except -1.
Why is it referred to as a rational expression?
An algebraic expression wherein each the numerator and the denominator are polynomials e.g. is referred to as a rational expression. for the reason that denominator can't be 0 there are values of x that can be excluded from the rational expression.
What is the real number?Real numbers are numbers that include each rational and irrational numbers. Rational numbers such as integers (-2, zero, 1), fractions(1/2, 2.5) and irrational numbers together with √three, π(22/7), and so on., are all actual numbers.
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Match the following. 1. an act of fertilization involving the transfer of cell contents to another cell; usually occurs in simpler organisms diploid 2. having chromosomes in homologous pairs conjugation 3. a type of mating pattern in which eggs and sperm are released into the water after the mating partners come near one another; occurs outside the body of the female external fertilization 4. the fusion of gametes to produce a new cell or zygote; often said to be the union of egg and sperm fertilization 5. having a single, complete set of chromosomes, or one half of each pair of homologous chromosomes haploid
Answer:
1. Conjugation
2. Diploid
3. External fertilization
4. Fertilization
5. Haploid
Explanation:
Conjugation is a cell-to-cell encounter between bacteria cells. The bacteria come close to each other and DNA is then transferred through a tube-;ike structure called pilius.
The difference between diploid and haploid is that diploid organisms have chromosomes that come in pairs. The chromosomes are paired up with another chromosome that is similar in shape and size and that is why they are called homologous pairs. Haploid on the other hand do not come in pairs. In human beings for example, the egg cell and sperm cell are haploid, only having one homologous chromosome. When they join together during fertlization, they form a diploid.
Fertilization is the union of gamete cells, male and female, which result in the formation of a zygote. There are two types of fertilization, internal and external. Internal fertilization occurs when the union of the sex cells (gametes) occur inside the organism. You would see this in humans, where fertilization occurs in the womb. External fertilization occurs when the union occurs outside the organism and a good example of this would be fish. The female expels it's eggs into the water and the male would release its own sex cells as well, and they would join in the water.
Although cellular respiration involves many steps, the whole process can be represented by a single equation. A + B → C + D + E Which substances would complete the equation that models the overall process of cellular respiration? A: B: C: D: E:
Answer:
A: glucose
B: oxygen
C: carbon dioxide
D: water
E: ATP
I just took the test and it was right
In the equation; A + B → C + D + E
A = glucose (C6H12O6)B = oxygen (O2)C = carbon dioxide (CO2)D = water (H2O)E = energy (ATP)CELLULAR RESPIRATION:
Cellular respiration is a general process by which living organisms obtain energy needed for metabolic activities by breaking down food molecules in their cells. Cellular respiration involves series of internal processes but can be summarized by the chemical combination of glucose and oxygen to form carbon dioxide and water. The chemical equation of cellular respiration is as follows:C6H12O6 + 6O2 → 6CO2 + 6H2O
Therefore; the substances represented by the letter is as follows:
A = glucose (C6H12O6)B = oxygen (O2)C = carbon dioxide (CO2)D = water (H2O)E = energy (ATP)Learn more at: https://brainly.com/question/13721588?referrer=searchResults
Cells have receptors on their surfaces to sense their environment and to communicate with other cells. Viruses use these cell receptors to
A. cause the cell to move to an area well suited for viral replication.
B. cause the cell to disintegrate, or lyse.
C. insert their genetic material into the cellular genetic material.
D. enter the cell.
Viruses use the cell receptors to enter the cell.
Option D.
Explanation:
Viruses are the small intracellular pathogens which cannot reproduce on their own. A viral particle can make other virus particles only when it is inside the host. To gain entry inside the host, viral particles interact with the cell receptors of the host through which they are either endocytosed or inject their genetic material inside the host cell.
Once the viral genetic material RNA or DNA is inside the host it takes over the host replication machinery to replicate viral genome and to transcribe the viral proteins to produce more viral particles which rupture the cell and released to invade other cells.
You're moving into a new apartment and trying to fit your large chair through the doorway. Your friend, who is helping you move, suggests rotating the chair a different way and seeing if it fits. However, you remember that the last time you moved the chair, it must first be reclined in order to fit through the doorway. Which choice below correctly identifies the learning strategies that you each are using in this example?
A. Your friend is demonstrating trial-and-error, and you're demonstrating imprinting.
B. Your friend is demonstrating insight, and you're demonstrating trial-and-error.
C. Your friend is demonstrating trial-and-error, and you're demonstrating insight.
D. Your friend is demonstrating insight, and you're demonstrating imprinting.
3. How does a renewable resource differ from a nonrenewable resource?
Answer: a nonrenewable resource takes years to be replaced or never is once it is used up, while a renewable resource takes little time to be replaced.
what is a gamete?????
Answer:
an organisms reproductive cells
Explanation:
A gamete is a reproductive cell produced during meiosis carrying a haploid number of chromosomes. In humans, the male gamete is sperm and the female gamete is an oocyte; these gametes are essential for sexual reproduction and combine during fertilization to create a new organism.
A gamete is a reproductive cell that is produced during the process of meiosis and carries a haploid set of chromosomes. In human reproduction, there are two types of gametes: the male gamete, known as sperm (or spermatozoon), and the female gamete, called an oocyte (usually referred to as an egg).
These gametes are critical for sexual reproduction because during fertilization, one sperm fuses with one oocyte, thereby combining their haploid sets of chromosomes to form a diploid zygote, which then develops into an embryo. In the context of assisted reproductive technology, there is a procedure called gamete intrafallopian tube transfer which involves placing both sperm and ova (eggs) into the fallopian tubes of the female, allowing natural fertilization to occur.
Which of the following is an example of gene flow? A forest fire kills 50% of red-spotted chipmunks in a forest community. Pollen from a yellow daisy travels across a stream and pollinates an orange daisy. A bird with blue feathers is less camouflaged in the rainforest than a bird with green feathers. Mice with heavy coats are able to survive the winter better than mice with thin coats.
Answer:
Pollen from a yellow daisy travels across a stream and pollinates an orange daisy.
Explanation:
Gene flow refers to the movement of genes from one population to another population of the same kind.
From the alternatives given, Pollen movement from a yellow daisy across a stream to pollinate an orange daisy is an example of gene flow
Answer: Pollen from a yellow daisy travels across a stream and pollinates an orange daisy.
Explanation:
The gene flow can be define as the transfer of the genetic variation typically from one population to the other. If the rate of flow of gene is high enough, the two population in which the gene flow has occurred will become equivalent in allele frequencies and therefore will become the single population.
Pollen from a yellow daisy travels across a stream and pollinates an orange daisy. is the correct option, this is because of the fact that through pollen which is the male gamete the genetic variations are passing from one population to another population of the same species of daisy. Thus the allelic frequencies will become the equivalent in the two populations of the same species. Thus this will result in the formation of the single population.
what is similar in size and shape to bacteria
Answer:
Archaea
Explanation:
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according to cell theory; which structures carry out the basic function of living things?
a. atoms
b. organs
c. cells
b. nuclei
According to cell theory, cells carry out the basic function of living things.
What is cell theory?The cell theory is a scientific theory that states that,
All organisms are made up of cells.All new cells are produced by pre-existing cells.The cell theory states that the cell is the fundamental structure and functional unit of living matter.
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Some plants require fire in order to release their seeds. True False
This statement is true!
Sunny~ ☺
Giraffes with short necks tend to be unable to access enough food, while giraffes with long necks can reach more food at the tops of trees. This causes an advantage for giraffes with long necks. How would you explain this?
A. This is an example of a stabilizing selection in which the intermediate form of a trait is advantageous compared to the extreme forms of the trait.
B. This is an example of a disruptive selection in which the population of cacti is divided and well-defined.
C. This is an example of directional selection in which one end of the bell curve is better adapted to its environment than the other end.
D. This is an example of bidirectional selection in which evolutionary pressures from multiple sources encourage an organism to adapt
Answer:
C
Explanation:
Directional selection is one that favors one extreme ends of a trait of a population. In this case the length of the neck in the giraffe population is the trait and the longest necks have an advantage –they gather more food hence have more chances of reaching reproductive age and passing their genes to next generation- and are, therefore, favored best by natural selection pressures that power evolution.
This is an example of directional selection in which one end of the bell curve is better adapted to its environment than the other end.
2.
Found that bacterial cells contain a molecule (now known as DNA) that transfers genetic material from one cell to another:
Walter Sutton
Gregor Mendel
Frederick Griffith
Thomas Hunt Morgan
Frederick Griffith found that bacterial cells contain a molecule (now known as DNA) that transfers genetic material from one cell to another. Hence option C is correct.
Griffith was researching two strains of the pneumonia-causing bacteria Streptococcus pneumoniae in 1928. While one strain proved lethal, the other was safe.
Griffith discovered that a mouse would perish if it was injected with a combination of the dangerous strain and the innocuous strain that had been heat-killed.
Griffith came to the conclusion that the innocuous strain had acquired certain characteristics from the heat-killed lethal strain. This chemical is a "transforming principle," he said.
Oswald Avery, Colin MacLeod, and Maclyn McCarty discovered DNA in 1944 and used it to extract the transforming principle. Their research established DNA as the genetic constituent of cells.
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Which part of the spine is likely to cause a nerve signal to travel faster?
A. Backbones
B. White matter
C. Nuclei
D. Gray matter
A population of white, grey, and black lizards lives on a volcanic island, and each phenotypic color has an equal chance of survival. However, after the latest
volcanic eruption, 75 percent of the island was covered with volcanic ash and hardened lava flows. This event caused the black lizards to be naturally selected
over the white and grey lizards. This change is an example of what type of microevolution?
A) stabilizing selection
B) normal distribution
C) directional selection
D) disruptive selection
I would say disruptive selection, because the sudden eruption of the volcano disrupted the circumstances of the lizards, allowing the black ones to survive better because of camouflage against the black rock.
Hope this helps!
The change in the lizard population after the volcanic eruption is an example of directional selection, where the environment favors one extreme phenotype, leading to a genetic shift.
The scenario where a volcanic eruption on an island causes the environment to change in a way that favors black lizards over white and grey lizards for survival is an example of directional selection. This type of natural selection happens when environmental changes favor phenotypes at one extreme of the existing variation within a population. In this case, the black lizards are naturally selected because they are better camouflaged in the environment covered with volcanic ash and hardened lava flows, thereby increasing their chances of survival and reproduction. This results in a shift in the population's genetic variance toward the darker, fit phenotype.
the study of interaction between living organisms and their enviroment is called (a) phytogeography (b) ecology (c) phytosociology (d) ecosystem
Answer:
Ecology.
Explanation:
It's the study of the interaction between organisms with eachother and their environment.
Ecology is the scientific study of how living organisms interact with each other and their environment, spanning levels from individual organisms to complete ecosystems.
The study of the interaction between living organisms and their environment is called ecology. This branch of biology deals with the relationships that living organisms have with one another as well as with their physical surroundings. Ecologists explore these complex interactions at various levels, including organismal, population, community, and ecosystem levels. At the most inclusive level, they study ecosystems, which consist of both the biotic (living) and abiotic (nonliving) components of an environment. An ecosystem can be as small as a drop of water or as large as a forest and includes both aquatic and terrestrial types.
Understanding ecology is vital to address many issues facing our world today, such as climate change, biodiversity conservation, and sustainable development. The field overlaps with other disciplines like geography, geology, climatology, and environmental science, illustrating its broad relevance to our understanding of life on Earth.
At what point on a roller coaster is the gravitational potential energy (GPE) the lowest?
Question 7 options:
at the top of the highest drop
at the lowest point of the roller coaster
while on the decline
while on the incline
Answer:
at the lowest point
Explanation:
highest at the highest point lowest at the lowest point
Lisa had 20 grams of water. She poured out 15 grams. Which of the following physical properties of the water changes? (4 points)
Boiling point
Density
Electrical conductivity
Volume
Answer:
Volume
Explanation:
The boiling point and density of water never changes, no matter how much you add
So the answer CAN'T be Boiling point or Density
Electrical Conductivity changes only when the number of ions in a solution changes
So it CAN'T be Electrical Conductivity
It has to be VOLUME because volume is the only physical property that changes when you add or take away liquid from a liquidous mixture