Ecocide hypothesis One of them is the ecocide speculation, mentioning that the populace as soon as suffered a huge disintegrate due to the fact they overexploited the herbal assets at the island. The different speculation is that a disintegrate happened after the Europeans got here to the island.
Five meters (16.five feet) in almost 10 years - "The soil on Easter Island may be very poor, there are not any minerals. So we want fertilizer for reforestation." But this Polynesian outpost wasn't constantly barren and denuded. Scientists have verified that the island become blanketed through forests till the seventeenth century.
Rapa Nui (or Easter Island, as it's miles normally known) is domestic to the enigmatic Moai, stone monoliths which have stood watch over the island panorama for masses of years. Their lifestyles is a surprise of human ingenuity — and their that means a supply of a few mystery.
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I don’t understand this can you please help me
Answer: Option C should be the best answer
Explanation: If you look at option A it can be ruled out because when population 1 temp, on the graph, changes from 15C to 20C there is a decline according to the arch.
Option B is similar in that population 1 continues to decrease on it's arch with temps from 20C to 25C.
Option C is not incorrect, as population 1 arch has a pinnacle of 15C and population 2 has a pinnacle of 25C respectively.
Option D can also be ruled out because neither populations reach those numbers for their arched graphs.
Therefore option C is correct
The procurement of Henrietta Lack's cells brings up many ethical issues surrounding both informed consent and the ownership of genetic and biologic materials.
In what way was informed consent breached in this case?
Explain Dr. George Gey's role in the creation of the HeLa cell line. Did he benefit? If so, explain how.
Which ethical theory best describes his actions?
Many human genes have been patented and the resulting 2013 supreme court ruling left some gray areas in this regard. What are your thoughts about research and patents when it comes to biologic materials?
Should Henrietta Lacks' family receive money for the HeLa cells?
Should companies profit in general from genes or other biologic materials?
If not, do you think it will impact companies' willingness to do biomedical research? If yes, how could that impact healthcare?
The procurement of Henrietta Lacks cells brings up many issues including informed consent, medical records privacy, and communication with tissue donors and research participants.
What are HeLa cells?Black lady Henrietta Lacks was a 31-year-old mother of five who passed away from cervical cancer in 1951. She leaves a stunning legacy of ever reproducing cells that have effectively attained "immortality," carrying her name and memories with them. In laboratories all across the world, her cancerous cells have survived long after she passed away and have multiplied so rapidly that if put end to end, they could wrap the globe three times.
Little did Henrietta know when she went to a cancer clinic at Johns Hopkins in Baltimore in January 1951—the only hospital in the region at the time that treated African Americans—that she would eventually reach a type of immortality.
Without her consent or knowledge, her surgeon, Howard Jones, removed a tissue sample from her diseased womb. This sample was sent to George Otto Gey, a doctor and cancer researcher at the same Baltimore hospital, who was astounded by the cells' capacity to proliferate in lab culture.
Therefore, the procurement of her cells brings up many issues including informed consent, medical records privacy, and communication with tissue donors and research participants.
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Who plays a role in preserving the environment?
A drop of water can contain an entire ecosystem.
True
False
+11 points
Answer: yes, an ecosystem can be as small as a drop of water or as large as a forest.
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What is the gel-like substance inside the cell membrane?
Answer:
Cytoplasm is the jelly-like substance present between the cell membrane and nucleus and centriole is a cylinder shaped structure present in the cytoplasm.
Answer:
Cytoplasym
Explanation:
4. Critical Thinking How would Mendel's observations and conclusions have been different if
many of the characteristics he studied, such as seed color and seed texture, had been controlled
by genes located close together on the same chromosome?
If following that would have happened in Mendel's observations and conclusions then there wouldn't be independent assortment.
What was Mendel's original experiment?Mendel started out by testing out a single pea plant trait at a time. He began with the hue of flowers. Mendel crossed-pollinated parent plants with purple and white flowers, as seen in the illustration below. The P (for parent)generation in the experiments stands for the parent plants. Mendel proposed three laws of inheritance, which are as follows.
The segregation of the two alleles of a particular gene into the gametes is described by Mendel's first law.In a heterozygote, one trait will mask the presence of another trait for the same characteristic, according to Mendel's law of dominance.According to Mendel's law of independent assortment, the alleles of two or more distinct genes are independently sorted into gametes.To know more about heterozygous :
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Anyone who get the answer correctly will be mark as brainliest.
One of the primary advantages of cell culture is the ability to isolate a single type of cell from a multicellular organism. How has this advance changed the study of biology?
Single-type cultures are easier and cheaper to maintain than cultures made of mixed cell types.
Scientists can completely avoid using animal or human test subjects during their experiments.
Cultures with single cell types behave in culture exactly as they would behave in a tissue or organ.
Scientists know that any response during an experiment is associated only with that cell type.
Answer:
Scientist know that any response during an experiment is associated only with that cell type.
Explanation:
Anjuli performed an experiment to determine the respiration rate of yeast. She determined this by measuring the amount of carbon dioxide (CO2) that was produced. Then, she created the following graph.
She should redraw her graph as a line graph because she was measuring a rate of change and is therefore denoted as option B.
What is Graph?This is referred to as a pictorial representation of data or variable in an organized or definite manner.
A line graph is a type of graph comprises of points which are usually connected by a straight line and it is used to show how different types of variables change over a given period of time. The slope of the line graph provides information about the rate involved.
Anjuli was told to redraw her graph as a line graph because the rate of respiration of yeast is what is to be determined and will provide sufficient information about it which is therefore the reason why option B was chosen as the most appropriate choice.
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The full question is:
Anjuli performed an experiment to determine the respiration rate of yeast. She determined this by measuring the amount of carbon dioxide (CO2) that was produced. Then, she created the following graph. Her teacher suggested that she redraw her graph as a line graph. Why should she redraw the graph?
A line graph looks better in a scientific report.She was measuring a rate of change.She had graphed the wrong relationship. Her experiment had many different variables.Which of the four labeled bonds in figure one could be broken to remove and replace the cytosine nucleotide without affecting the biological information coded in the dna molecule
Which disease has probably infected Elizabeth's chickens in the following scenario?
Elizabeth has noticed that several of her chickens have stopped laying eggs. Upon further investigation, she sees that white spots have
formed on the exposed skin beneath the wings, and their vocals seem strained.
O mycoplasmosis
O Newcastle disease
O external parasites
O avian pox
Answer: Avian Pox
Explanation:
Question 1 of 5
Prove: If two angles are supplementary, then one of the
angles must be obtuse.
Which image provides a counterexample to this
statement?
If two angles are supplementary then one of it must be obtuse. Because supplementary angles are those two angles whose sum is 180. If either of the two is acute then the other must be obtuse to satisfy the condition.
When two angles formed on a line and they adjacent to each other, then their sum is equal to 180°. Such two angles are called supplementary angles.
In the figure A,
Two angles are drawn, one of 40° and another of 140°. Sum of these two angles are 180°, so these two angles are supplementary.
Now, for any general case,
Let us assume that an acute angle of x° is is drawn on a line. Let the adjacent angle on that y° angle will,
x° + y° = 180°
y° = 180° - x°
the value of x can take place between,
0° < x° < 90°
So,
y° = 180°-x°
Y becomes,
90° < y° ≤ 180°
Hence Y is an obtuse angle.
It is proved that If two angles are supplementary, then one of the
angles must be obtuse.
There is no counterexample to this statement except the case referred in Image B.
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Erosion typically wears the Hawaiian volcano Mono Loa down about 20 cm in 5 years. Lava flows build the volcano up about 10 cm every time there is an eruption. Mono Loa erupts about once every 2 years. Is the volcano growing or wearing down?
Answer: The Volcano is growing little by little
Explanation:
it goes down 4cm every year so in 2 years it will have gone down by 8cm then it erupts and goes up by 10cm gaining back to 8cm it lost, plus the extra 2cm.
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Which organelle is responsible for making proteins (Worksite)?
Answer:
The ribosomes
Explanation:
Answer: ribosomes
Explanation:
ribosomes are the organelles responsible for protein synthesis.
Which equation shows how cells use the energy stored in an energy carrier?
A. ADP + H+ → ATP
B. NADPH →NADP+ + H+
C. NADP+ + P→ ATP
D. ATP → ADP + NADPH
The equation that shows how cells use the energy stored in an energy carrier is as follows: ATP → ADP + NADPH (option D).
How is energy used in the cell?Energy is the capacity to do work and a very important criterion for every metabolic activity that occurs in living cells.
The energy currency in the cells of living organisms is Adenosine triphosphate (ATP). ATP is a biomolecule that is used as a source of energy in cellular reactions.
Energy is stored in the cell when a phosphate group is added to ADP while the energy is dispensed for use when phosphate group is lost from ATP to become ADP.
This means that the equation that portrays how cells use the energy stored in an energy carrier is as follows: ATP → ADP + NADPH.
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Answer is B.
how much mass would you need to make 40.0 grams of a 5.0% KOH solution
2grams of KOH are needed.
Here we have to find the mass of KOH to be used to make 40.0grams of 5.0% KOH solution.
Total weight of the solvent = 40 g
Therefore,
(weigh of KOH)/( Total weight of the solvent) × 100 = 5
(Weight of KOH / 40 )× 100 = 5
Weight of KOH =( 5×40)/100
= 200/100
= 2grams
Therefore the mass of KOH to be used is 2grams.
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Check the box of the macromolecule that each statement is describing. Some statements may describe more than one category
Proteins–large complex molecules–are major building blocks of all living organisms. Discuss the chemical composition and levels of structure of proteins.
Amino acids are the building blocks of all proteins, no matter their function. Proteins are typically a chain of 20 amino acids. The human body can use combinations of these same 20 amino acids to make any protein it needs.
The roughly 20 canonical amino acids can be categorized based on their characteristics. Charge, hydrophilicity or hydrophobicity, size, and functional groups are significant variables. Protein structure and protein-protein interactions are influenced by these characteristics. Leu, Ile, Val, Phe, and Trp are hydrophobic residues that are frequently buried in the center of water-soluble proteins, whereas hydrophilic side chains are exposed to the aqueous solvent.To know more about Amino acids, visit:
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Describe structure and function of lipids
Answer:
The main function of lipids is storing energy as it can be broken down to yield large amount of energy. It is essential as it also forms the structural components of cell membranes. The structure of lipid is: glycerol backbone, 2 fatty acid tails (hydrophobic), and a phosphate group (hydrophilic).
Explanation:
Explain why degrees of freedom equals sample size minus one.
Answer:
The degrees of freedom formula for a 1-sample t-test equals N – 1 because you’re estimating one parameter, the mean.
Explanation:
May the carbon cycle be altered after large scale reforestation effort. select all the correct answers
Answer:
bhrhrhhrbrbrbrbbrbrjfjfjjf
explain what dissociation is in biology??
Answer: Being separated or moved apart.
Explanation: Separation of a cell into two separate parts, dissociation.
Felsic rocks melt at a temperature that is….
Answer:
"Felsic minerals have the lowest melting points (600 to 750 °C) and mafic minerals have higher melting points (1000 to 1200 °C). Bowen's Reaction Series can be thought of as an idealized order of crystallization of a cooling magma."
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How does osmosis help cells to maintain homeostasis?
A-Through the movement of water molecules osmosis helps maintain an equilibrium of substances inside and
outside a cell.
B-Osmosis uses energy to move water through the cell.
C-Osmosis keeps the number of oxygen molecules the same both inside the cell and outside the cell.
D-Osmosis keeps the balance of energy the same both inside and outside the cell.
Osmosis is a process that helps cells maintain homeostasis by regulating the movement of water molecules across their membranes. Option A is the correct.
Through the movement of water molecules, osmosis helps maintain an equilibrium of substances inside and outside a cell. When there is a difference in the concentration of solutes (substances dissolved in water) on either side of a cell membrane, water molecules will move from an area of lower solute concentration to an area of higher solute concentration. This movement of water helps to equalize the concentration of solutes on both sides of the membrane, maintaining a balance and preventing the cell from becoming too dilute or too concentrated.
For example, if a cell has a higher concentration of solutes inside compared to the outside, water molecules will move into the cell through osmosis, increasing the volume and preventing the cell from shrinking. On the other hand, if the concentration of solutes outside the cell is higher, water molecules will move out of the cell, preventing it from bursting.
In summary, osmosis helps cells maintain homeostasis by regulating the movement of water molecules to achieve an equilibrium of substances inside and outside the cell.
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Describe a controlled experiment you could perform to determine whether ants are more attracted to butter or to honey. (100 points will mark BRAINLIEST!!!)
Answer:
Ants could be placed in a container with butter and the same amount of ants in another container with honey. These could be observed to see how many ants in each container are attracted to the substance and how quickly they respond.
or
Put a number of ants on a baking tray with butter at one end and honey at the other. Count how many go to each. Repeat experiment at least 3 times. Which is the most attractive to ants?
Explanation:
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You want to develop an herbicide that affects ATP synthesis in plants but not animals. What would you target to prevent ATP synthesis?
Herbicides are compounds that are used to eliminate undesirable weeds without damaging desired plants or crops.
A few herbicides have a broad spectrum of action and destroy weeds without targeting any particular weed species. A herbicide that interferes with ATP synthase will cause a decrease in ATP production since this enzyme uses a proton gradient to catalyse the synthesis of ATP. The herbicide triazine is an illustration of this class. A proton gradient that is formed in the thylakoid lumen, through the thylakoid membrane, and into the chloroplast stroma is used by ATP synthase to produce ATP during photosynthesis in plants.
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9. What is meant by semiconservative replication? Sketch this process below.
Explanation:
relating to or being genetic replication in which a double-stranded molecule of nucleic acid separates into two single strands each of which serves as a template for the formation of a complementary strand that together with the template forms a complete molecule.
What are you doing when you make a decision at the margin? reviewing several options of how to use one additional unit of a resource examining two primary options and their trade-offs before making a decision refusing to make a choice taking an all or nothing approach to a problem
You are examining two primary options and their trade-offs before making a decision at the margin.
The margin represents the activity's current level. Consider it as the vantage point from which to make a decision. A decision to do something a little bit more or a little bit less is referred to as a margin choice. Making decisions at the margin can reveal very insightful information. Virtually almost all choices, are made at the margin. Individuals do not make choices about whether they should or should not consume something or not. Rather, they decide whether to consume a little more or a little less of it.
You are examining two primary options and their trade-offs before making a decision at the margin.
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1. Population ecologists follow the fate of same-age cohorts to
(A) determine a population's carrying capacity.
(B) determine the birth rate and death rate of each group in a population.
(C) determine if a population is regulated by density-dependent processes.
(D) determine the factors that affect the size of a population.
Population ecologists follow the fate of same-age cohorts to determine the birth rate and death rate of each group in a population. Option B
This is further explained below.
What are ecologists?Generally, Ecologists are concerned with the study of the connections that exist between the environment, plants, and animals.
They investigate the ways in which animals and plants are adapted to a certain ecosystem and then report on how any planned building activities are likely to affect those adaptations.
In conclusion, In order to establish the birth rate and mortality rate of each segment of a population, population ecologists track the outcomes of groups of individuals of the same age. Alternative B
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Who says the following and why? "We do our best to preserve the amenities of civilization here. Please forgive any lapses. We are well off the beaten track, you know. Do you think the champagne has suffered from its long ocean trip?" Mrs. Sappleton is trying to make Framton calm down. Zarloff is dining Rainsford before the hunt. Della and Jim are pretending they're rich. The child from "The Open Window" is pretending she is grown-up.
General Zarloff is dining Rainsford before the hunt is the correct option for the question given.
What is civilization?A civilization can be any complex society characterized by development of the state, social stratification, urbanization, and symbolic systems of communication beyond natural spoken language.
From the expression given below, General Zarloff is dining with Rainsford before the hunt is the correct option for the question given.
The excerpt above was taken from the book titled "The most dangerous game " authored by Richard Connell.
Civilization is term applied to any society that has developed a writing system, a government, produces food in surplus, has a division of labor, and urbanization.
The first civilizations include:
Indus Valley Civilization: c. 7000 to c. 600 BCEMesopotamia's Sumerian civilization: c. 6000-1750 BCEEgyptian civilization: c. 6000-30 BCELearn more about civilization at: https://brainly.com/question/870459
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why do we need to follow lab safety rules
Answer:
If we don't follow lab safety rules, someone could end up seriously hurt or lab equipment could get broken
Answer:
to ensure our safety when dealing with dangerous chemicals