Answers
Answer:
1. 1.00(1/2)^151/30.2= 31.3 g
2. 24g-->1.4 g = 4 half-lives, so 4*5730= 22920 years
3. 64g-->2.0g = 5 half-lives, so 12.5/5= 2.5 hours
Related Questions
Explain how specialized structures found in multiflora rose support its reproduction and spreading/dispersal throughout ecosystems in the United States. Use evidence and scientific reasoning to support your response.
Answers
Answer:
Presence of thorn stems, invasive nature and strong scent of of multi rose plant.
Explanation:
The presence of thorn stems, invasive nature and strong scent of of multi rose plant are the specialized structures found in multiflora rose support its reproduction and spreading and dispersal throughout ecosystems in the United States. The presence of thorn stems prevent animals to feed on the multi rose plant while on the other hand, strong scent of of multi rose flower attract pollinators that increase its pollination and increase occur in its population.
Should people be allowed to use gene therapy to enhance basic human traits such as height intelligence or athletic ability?
Answers
Answer:
no, of course not
Explanation:
Would you use drugs to gain a competitive advantage in sports? No, its against the rules and also unethical. It's not healthy. You've seen Jurassic Park right? It would lead to ruin.
Help me plsssss!!!!!
Answers
Answer:
b
Explanation:
what is the essence of setting up experiments in replicates?
Answers
Answer: Importance of replication in experiments
Explanation: Getting the same result when an experiment is repeated is called replication. ... Replication is important in science so scientists can “check their work.” The result of an investigation is not likely to be well accepted unless the investigation is repeated many times and the same result is always obtained.
The picture above shows onion root cells in various stages of mitosis.
The arrow is pointing to a cell in -
Answers
Answer:
Anaphase.
Explanation:
You can see the separation happening. This is anaphase.
Hope this is correct, good luck on your studies.
Why is there a higher rate of skin cancer in Australia than in other
parts of the world?
Answers
Answer:
In Austrailia there is the highest rate of skin cancer because there is so much sunlight and most austalians have the wrong skin type for thier environment meaning people with pale skin get burnt more easily
Explanation:
Australia has a high rate of skin cancer because there's something different about the sunlight in Australia, and most people in Australia have skin that is easily damaged by light from the sun. Light carries energy that can make materials change. Therefore, Australia has a high rate of skin cancer because the ozone layer is damaged by the energy carried from the UV Light, being absorbed by the ozone and damaging allowing that light to transmit through and damage the genetic material of those individuals with lower levels of melanin.
A biology teacher asks his class to make models of a plant cell, an animal cell, and a bacterial cell. Aside from cytoplasm and the cell membrane which other cell structure will the students need to make all three models?
A. Ribosome
B. Nucleus
C. Golgi Apparatus
D. Chloroplast
E. Cell wall
Answers
An allele whose trait only shows up when no dominant allele is present
hidden allele
dominant allele
present allele
recessive allele

Answers
Although nondairy coffee lighteners made with coconut oil contain 2 grams of saturated fat per tablespoon, or 7 times more than does whole milk, those lighteners usually contain no cholesterol. Yet one tablespoon of such lighteners causes the consumers blood cholesterol to rise to a higher level than does an identical amount of whole milk, which contains 2 milligrams of cholesterol per tablespoon.
Manufacturers of coffee lighteners based on coconut oil claim that their products usually cause the typical consumer’s blood cholesterol to rise to a lower level than does the use of whole milk as a lightener.
Which one of the following, if true, provides the most support for the manufacturers’ claim?
(A) Consumers of lighteners made with coconut oil who avoid other high-cholesterol foods and exercise more than average tend to have lower-than-average blood cholesterol levels.
(B) Coffee is frequently consumed with pastries and other rich desserts that themselves result in high blood cholesterol levels.
(C) One popular nondairy coffee lightener that is not based on coconut oil has reduced its fat content by 20 percent while keeping its cholesterol content at zero.
(D) Consumers typically add to their coffee substantially smaller quantities of coconut oil-based lighteners than of whole milk.
(E) Most consumers are convinced that whole dairy products increase blood cholesterol and that nondairy coffee lighteners do not.
Answers
Answer:
The correct option that, if true, provides the most support for the manufacturers’ claim is (D) Consumers typically add to their coffee substantially smaller quantities of coconut oil-based lighteners than of whole milk.
Explanation:
This can be explained by analysisng each of the options as follows:
(A) Consumers of lighteners made with coconut oil who avoid other high-cholesterol foods and exercise more than average tend to have lower-than-average blood cholesterol levels.
We're looking for something that backs up the manufacturer's assertion. This option refers to a subset of people who share particular features that make them healthier than the general public. Therefore, this option is not relevant.
(B) Coffee is frequently consumed with pastries and other rich desserts that themselves result in high blood cholesterol levels.
What we are doing is a comparison of Coffee Lighteners to Whole Milk, and we're seeking for proof that the Coffee Lightener is better for cholesterol. Therefore, this option is not relevant.
C) One popular nondairy coffee lightener that is not based on coconut oil has reduced its fat content by 20 percent while keeping its cholesterol content at zero.
Other products are not important to us outside the one we are discussing. Therefore, this option is not relevant.
(D) Consumers typically add to their coffee substantially smaller quantities of coconut oil-based lighteners than of whole milk.
The impact of the cholesterol can be overlooked (important word here is “substantially”) if consumers use significantly less coffee lightener, which cannot be true for whole milk. If this is the case, the manufacturer's claim should be taken seriously and we should believe it. This is therefore the correct option.
(E) Most consumers are convinced that whole dairy products increase blood cholesterol and that nondairy coffee lighteners do not.
It does not make any difference whether consumers are convicted or not. What we are seeking for is actual evidence to back up our claims. Therefore, this option is not relevant.
where are 70s type of ribosomes found in eukaryotic cells.
Answers
Which graph represents selection that may lead to reduced variation
in a population?
Answers
The frequency graph represents selection that may lead to reduced variation in a population.
fungi and bacteria are_____.
-plants -producers -decomposers
Answers
Answer:
decomposers
Explanation:
Answer:
decomposer
Explanation:
Fungi and bacteria are the most common decomposers.
The pancreas is an organ connected to the digestive tract of humans by a
duct (tube) through which digestive enzymes flow. These enzymes are
important to the digestive system because they
Answers
Answer: The enzymes are important to the digestive system because they help in BREAKING DOWN of food substances that contains fat, carbohydrates and proteins.
Explanation:
In the process of digestion, several substances are secreted into the duodenum which is the first part of the small intestine. The pancreas, through the pancreatic duct, secretes pancreatic juice. This juice contains several digestive enzymes which include:
--> Amylopsin- This helps in the breaking down of starch( CARBOHYDRATES) to maltose.
--> trypsin: this is a protease that helps in the breaking down of PROTEIN into polypeptide.
--> Lipase: This helps in the breaking down of FAT to carboxylic acids and glycerol.
All the above enzymes of the pancreatic juice require an alkaline medium to work in. This is provided by the bile which is secreted in the fall bladder.
What are the raw materials that are needed for photosynthesis?
A. glucose and oxygen
B. water and glucose
C. carbon dioxide and water
Answers
Answer:
C. carbon dioxide and water
Explanation:
The raw materials that are needed for photosynthesis are carbon dioxide and water. So, option (C) is correct answer.
Describe how the lizard population is changing
Answers
Answer:
Each time lizards colonized an island, they evolved into many of the same forms. .Other lizards adapted to life among the thin branches lower down on the trees, evolving short legs that help them hug their narrow perches. Still other lizards adapted to living in grass and shrubs, evolving long tails and slender trunks.Lizards are low on the food chain. Providing protection from their natural predators ensures their continued existence. Plant bushy perennials, create a rock or brush pile or use man-made items like stacks of bricks or pipes.
The variable your measuring during an experiment would be the?
Answers
manipulated variable is equal to the independent variable. it's like the "cause" of your outcome, which is your dependent or responding variable that you have to measure the results of.
what allows for differences between individuals due to differences in inherited DNA?
a. genetic variation
b. meiosis
c. interphase
d. mitosis
Answers
please answer this for me
Answers
the answer is D !!!!!!!
Answer:
maco shark
Explanation:
It is a fast speed-swimming shark that has been called “the peregrine falcon of the sharks” in allusion to the fastest bird in the world. It is considered an animal dangerous to humans because of the speed which can attack and its ability to jump into the fishing boats.
Describe the flow of energy between the ant and antlion.
A. The energy flows from the ant to the antlion
B. There is no energy being exchanged
C. The energy flows from the antlion to the ant
Answers
Answer:
A. The energy flows from the ant to the antlion
Explanation:
Secondary Consumer
The option that describe the flow of energy between the ant and antlion is A which is that the energy flows from the ant to the antlion.
The food chain shows the transfer (flow) of energy and nutrients from organisms to organisms in a feeding pathway.
The flow of energy in a food chain of an ecosystem occurs in the following direction:
from the primary producerto the primary consumerto the secondary consumer andlastly to the decomposers.Primary producers are the green plants which obtains energy through the food they produced during the process of photosynthesis.
The primary consumers, for example the ants, feed on the plant saps thereby obtaning energy from it.
The secondary consumer, for example the antlion, feeds on the primary consumers (the ants) and energy flows from the ant to the antlion.
Learn more here:
https://brainly.com/question/4584182
Photosynthesis is the process where the sun's energy is converted in to
chemical energy
*
True
False
Answers
Answer:
True
Explanation:
The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.
John is in his forties and his blood pressure reading shows consistently 160/100 mm of Hg. Name the disease. Mention any four reasons for such a condition?
Answers
Answer:
Stage 2 hypertension
Explanation:
Hypertension is a body circulatory system condition whereby the pressure of the blood vessels are raised persistently. The heart pumps blood to the different organs of the body through the blood vessels, each time it beats
The normal blood pressure in the vessel = 90/60 mmHg to 120/80 mmHg
The blood pressure of a prehypertension person or person at risk of having hypertension = 120-139/80-89 mmHg
The blood pressure at Stage 1 hypertension = 140/90-99 mmHg
The blood pressure at Stage 2 hypertension = 160/100 mmHg.
Based on the trends you observed in the laboratory exercise, which objects would you expect to be attracted to a bar magnet? Check all that apply.
a metal hammer
a wooden ruler
a plastic car
the metal frame of your chair
the paper in your notebook
the screws and nails that hold your desk together
Answers
Answer:
The correct answer is - 1. a metal hammer
4. the metal frame of your chair
6. the screws and nails that hold your desk together.
Explanation:
Bar magnets are rectangular objects made up of ferromagnetic objects or substances and must carry the north and south pole ends. These objects show ferromagnetism and attract any ferromagnetic metal such as iron, steel or ferromagnetic composite.
In the case of the same ends, for instance, the north-north pole of two magnets repulse and opposite attract to one another. From the given options the correct answer is a metal hammer, the metal frame of chair and screws and nails that hold the desk.
Answer:
A.)
D.)
F.)
Explanation:
The person above me is correct, please say thanks to them
5. Explain the difference between science and technology
Answers
Answer:
Science refers to the process of exploring new knowledge methodically through observation and experiments. Technology refers to the process of applying scientific knowledge in practical applications for various purposes.
Explanation:
Hope this helps
Science refers to the process of exploring new knowledge methodically through observation and experiments.
Technology :
Technology refers to the process of applying scientific knowledge in practical applications for various purposes.
¿Qué rama de la morfología estudia la forma y la estructura de los huesos?
Answers
Which question can be answered by science?

A. Should we conserve water?
B. Does this medicine reduce fevers?
C. Which projects should be funded?
D. Is it right to recycle?
Answers
Answer: B. Does this medicine reduce fevers?
Explanation: This is because you can run experiments and use the scientific method to answer your question.
Answer:
B
Explanation:
I think A, B and D can be answered in terms of science but I would say B is the answer because B only can be answered in terms of science. You can't give another answer for it like A and D
Identify the statement that describes the imperfection of natural selection. Identify the statement that describes the imperfection of natural selection. Natural selection has not had sufficient time to create the optimal design in each case but will do so given enough time. Natural selection is generally limited to modifying structures that were present in previous generations and in previous species. In many cases, phenotype is not merely determined by genotype but by the environment as well. Though we may not consider the fit between the current skeletal arrangements and their functions excellent, we should not doubt that natural selection ultimately produces the best design.
Answers
Answer:
Variability was seen as imperfection, so natural selection could only eliminate the inferior and imperfect, not giving rise to new things, new species.
:
which of the following is the best definition of a saturated fatty acid
Answers
Answer:
A saturated fatty acid is a basic unit of lipid that consists of only single carbon to carbon bonds. ... Saturated fatty acids are solid in room temperature(animal fats) and unsaturated fatty acids are liquid in room temperature(oils/plant fats)
Explanation:
Have a nice day :)
Which list shows organization of living things from the simplest to most complex?
A organ system, organ, tissue, cell
B tissue, cell, organ, organ system
C organ, organ system, cell, tissue
D cell, tissue, organ, organ system
Answers
Answer:
d
Explanation:
Because you need the cell to become tissue then the tissue Becomes organs then a bunch of organs become a organ system
Mendel crossed yellow-seeded and green-seeded pea plants and then allowed the offspring to self-pollinate to produce an F2 generation. The results were as follows: 6,022 yellow and 2,001 green (8,023 total). Which of the following statements correctly describes the relationship of the allele for green soods to the allele for yellow seeds? A. The green allele is dominant to the yellow allele B. The two alleles exhibit incomplete dominance C. The green alicle is recessive to the yellow allele D. The two alleles are codominant
Answers
Answer:
C. The green allele is recessive to the yellow allele
Explanation:
Complete dominance occurs when one gene variant or allele referred to as the 'dominant allele' completely masks the expression of another allele referred to as the 'recessive allele' in heterozygous individuals, i.e., in individuals carrying one copy of the dominant allele and one copy of the recessive allele for a particular locus/gene (whereas homo-zygous individuals carry the same alleles for a given locus/gene). Mendel crossed pure lines of pea plants, i.e., homo-zygous lines for different traits such as seed color (yellow and green) and seed shape (round and wrinkled). In this case, the parental cross was YY x yy, where the 'Y' allele is dominant and encodes for yellow seed color, and the 'y' allele is recessive and encodes for green seed color. From this cross, Mendel obtained a hybrid F1 (i.e., all progeny was heterozygous with genotype Yy). An expected 3:1 ratio as observed in this case (6,022 yellow and 2,001 green seed >> 3:1 ratio) is characteristic of the progeny that results from mating between F1 heterozygous parents, where each parent has one dominant allele and one recessive allele, i.e., F1 parental cross: Yy x Yy >> F2: 1/4 YY (yellow color); 1/2 Yy (yellow color); 1/4 (green color) >> 3:1 ratio of yellow to green seeds.
los derechos sexuales son iguales a los reproductivos? porfa help
