Answer:
Objects appear different colours because they absorb some colours (wavelengths) and reflected or transmit other colours. ... For example, a red shirt looks red because the dye molecules in the fabric have absorbed the wavelengths of light from the violet/blue end of the spectrum.
Explanation:
"Whenever two objects come into contact, there is always a transfer of material demonstrates which
principle?
a. Daubert principle
b. Frey principle
Locard's principle
d. Holmes principle
c.
Answer: It is the Locard's principle.
:)
I need help plz help me
Answer:
T and A are together
G and C are together
Explanation:
these pairs will always connect to each other
Complete the sentence using the correct term.
-blank- technology allows us to create combinations of genes from two different species.
Answer:
Cloning technology
Explanation:
With cloning technology we can replicate and combine different genes to study, save lives, and create new species
Please hurry I need the right answer and I will give brainliest for the right answer no alien talk or file
Answer:
grasshopper
The organisms that eat the producers are the primary consumers. ... The primary consumers are herbivores (vegetarians
Give three examples of what happens with unbalanced forces? I give Brainly
A scientist wants to determine whether a mutant phenotype is due to the loss of gene C or gene D, which are both deleted in a mutant fly with abnormal eyes. Mutant flies with that have a transgenic gene C have wild-type eyes, whereas mutant flies that have a transgenic gene D have abnormal eyes. What can be concluded from these results
Answer:
a transgenic copy of the gene C is sufficient to restore normal eye development
Explanation:
In genetics, there are diverse approaches to determining a gene's function. For example, it is possible to use a complementation test to determine loss-of-function recessive mutations when it is unknown if such mutations fall in the same or in different genes. Similarly to the generation of loss-of-function phenotypes, it is possible to insert a gene and thus produce a gain-of-function mutation that restores normal gene function (i.e., to restore the wild phenotype). Moreover, transgenic organisms refer to genetic engineering techniques by which any foreign or modified gene is inserted in the genome of an organism, which can also be used to study gene function. In this case, the restoration of the normal phenotype (wild-type eyes) is associated with the expression of the transgenic gene C, thereby evidencing that the gene C is required for normal eye development. In the last years, transgenic models have shed light on developmental pathways and on gene function.
To become or stay physically fit, you should exercise and eat healthy.
O A. True
B. False
Please help I’ll mark you as brainliest if correct! #2
Answer:
Tt
Explanation:
Hello. I believe that you are only referring to question 2, since question 3 does not present all the answer options. As such, the offspring of a cross between a tall pea plant (TT) and a low pea plant (tt) would be completely "Tt."
To achieve this result, you must make a Punnett Square, which is a frame that allows you to combine the alleles of the parents in a cross to project the alleles of the offspring.
Alleles are those characterized by the letters associated with characteristics. As you saw in the question above, tall pea plants have "TT" alleles that are dominant alleles, while low pea plants have "tt" alleles that are recessive alleles. In this case, to use Punnett Square, you must put the alleles of one parent in the first row and the allele of the other parent in the first column. Then just combine each allele, as shown below:
T T
t Tt Tt
t Tt Tt
As you can see all the offspring will have the "Tt" alleles. This means that the entire offspring will be tall pea plants. This is because the recessive allele "t", which is related to pea plants, can only be expressed in the presence of another recessive allele. However, the dominant "T" allele, which is associated with tall pea plants, can be expressed in any situation.
Protists are
A. the simplest of eukaryotes
B. members of a single kingdom
C. the simplest of eukaryotes, and are generally aquatic
D. the simplest of eukaryotes, generally aquatic, and members of a single kingdom
E. generally aquatic
Answer:
D
Explanation:
that is the answer 101010101010101001
how can a brick wall model as a group of plant cells
Answer:Like a brick wall, your body is composed of basic building blocks, and the building blocks of your body are cells.For example, epithelial cells protect the outside surface of the body as part of the skin and cover the organs and body cavities within. Bone cells build up bones to provide support for the body.
Explanation:
wrote an essay on it
Which list shows the steps by which surface water can become groundwater?
A. Zone of saturation → zone of aeration → precipitation
B. Precipitation → zone of aeration → zone of saturation
C. Zone of aeration → zone of saturation → precipitation
D. Zone of saturation → precipitation → zone of aeration
The steps by which surface water can become groundwater
B. Precipitation → zone of aeration → zone of saturation.
What is Groundwater?
Groundwater is the reservoir of water this water accumulates in the ground surface or subsurface of the earth's crust through tiny pores and fractures in the rocks.
The source of water are streams of rivers, oceans, lakes and large depositing is because of water from the rain and melting of the snow. It is a source of freshwater in nature.
Thus, option "B" is correct.
To learn more about groundwater click here:
https://brainly.com/question/12136682
#SPJ1
Can you guys help me
The original source of new alleles, upon which selection operates, is mutation, a random event that occurs without regard to selectional value in the organism. Although many model organisms have been used to study mutational events in populations, some investigators have developed abiotic molecular models. Soll et al. (2006. Genetics 175: 267-275) examined one such model to study the relationship between both deleterious and advantageous mutations and population size in a ligase molecule composed of RNA (a ribozyme). Soll found that the smaller the population of molecules, the more likely it was that not only deleterious mutations but also advantageous mutations would disappear. Why would population size influence the survival of both types of mutations (deleterious and advantageous) in populations
Answer:
Sampling error may allow fixation of one form and the elimination of others in a small population.
Explanation:
It can be seen that in case of a small population size, there are high chances of the elimination or the fixation of the allele in the population when compared to the large population size. Also sampling errors are found in case of small population size that leads to the enhancement of the chances for fixation and also for the elimination of the allele. This large size population doe not have much effect. The random fixation of the either selective allele or the elimination of the disadvantageous allele occurs due to the genetic drift.
SO in order for the population size influenced the survival of both types of mutations , the sampling error may be allowed for the fixation of one of the form and the elimination of the other forms in the small population size.
I’m struggling with this practice problem help
Answer:
it think it C ^^^^^^^^^^^^
Phenylketonuria causes a severe cognitive disability due to the inability to metabolize phenylalanine. It is an autosomal recessive disorder. About one in 12,000 newborns in Massachusetts are afflicted with the disease, skewed higher than the general US population due to more Irish-Americans. Assuming the gene is in Hardy-Weinberg equilibrium, the frequency of the carriers (heterozygotes) in Massachusetts would be calculated to be...
Answer:
The frequency of the carriers (heterozygotes) in Massachusetts is 0.018
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
Soooo... anyone have an essay on the impact of climate change on the oceans they’d like to share?? :)
I need ideas!!!
Answer:
Here's a paragraph that you can add !
Explanation:
When greenhouse gases capture more solar radiation, the oceans consume more heat, resulting in higher sea surface temperatures and increasing sea level. Changes in water temperatures and tides caused by climate change will cause changes in global climate patterns.
why might patients who go into remission get a different type of cancer?
Answer:
Remission can be partial or complete. In a complete remission, all signs and symptoms of cancer have disappeared. If you remain in complete remission for 5 years or more, some doctors may say that you are cured. Still, some cancer cells can remain in your body for many years after treatment.
Please and thank you!
Answer:
A gene mutation
Explanation:
DNA nucleotide sequence is unique
Prisms produce the colors of the rainbow through?
A. Reflection.
B. Refraction.
C. Scattering.
D. Absorption.
Answer:
It should be B
Explanation:
I hope this helps
Design an experiment to test the role of thyroxine in helping the body adjust to cold temperatures. Describe the overall investigation to be done, the variables to be changed, the variables to be kept constant, the subjects to be used, the control and experimental conditions to be used, the type of data collected, and how the data will be collected. Explain how these data can be used to justify the conclusion that thyroxine is involved in adjusting body temperature in response to cold. (9 points)
Answer:
- Hypothesis: thyroxine gene is responsive to low temperatures, thereby its transcript level is higher in cold climates
- Subjects of study: gene expression data collected from individuals from countries with different climates
- Experiment: to determine thyroxin gene expression level by Real-Time PCR (RT-PCR) in individuals living in cold climates (e.g., Iceland) versus individuals living in warmer climates (e.g., Puerto Rico)
- Independent variable: temperature
- Dependent variable: thyroxin transcript level
- N sample: 500 individuals of each population
- Control group: individuals living in the same climate conditions but from different countries. It can be done by collecting gene expression data from individuals living in another country. For example, both Fairbanks (Alaska) in the USA and Reykjavik in Iceland are at 64 degrees N latitude, and thereby these cities have similar climates
- Constant variable: all data collected from individuals of adult age (age range: 20-30 years)
Explanation:
The scientific method is a sequential process that consists of making hypotheses in order to explain observations from the real world, make predictions based on the working hypotheses, carrying out experiments based on those predictions, test the predictions and draw conclusions based on the results obtained. In an experiment, the independent variable isn't changed by the other variables, while the dependent variable is the variable being measured in the experiment. A constant variable does not change during the experiment. Moreover, a control group is a particular group to which comparisons are made during the experiment (the control group isn't exposed to the independent variable, and therefore any change in the experimental groups can be compared with the control). In this case, it is expected to measure thyroxine expression levels in 500 individuals from each country by RT-PCR (RT-PCR technique is used to measure the amount of mRNA of a target gene of interest). Subsequently, it is possible to determine if the differences in the thyroxin gene expression levels between populations (i.e., individuals living in Iceland vs individuals living in Puerto Rico) are statistically significant to confirm that thyroxin gene activity is increased in response to cold exposure. Finally, the control group can be used to determine if observed differences in gene expression are irrefutably correlated with cold conditions.
Imagine two populations of penguins live in the same ecosystem. One population begins to exchange stones as a mating ritual while the other population begins to dance by shifting from one foot to the other. Individuals from each population will only mate with individuals that display the appropriate mating ritual. Which type of reproductive isolation mechanism does this scenario describe?(1 point)
Behavioral Isolation
Geographic Isolation
Temporal Isolation
Habitat Isolation
Answer:
i think its behavioral
Explanation:
Answer:
The answer would be Behavioral Isolation.
Explanation:
I did the Connections Academy Quick Check and it said it was correct.
Which nutrients do plants need in larger quantities?
micronutrients
or
macronutrients
Answer:
macronutrients
Explanation:
macronutrients are important for growing plants. the main macronutrients are nitrogen, Potassium, and phosphorus.
Answer:
The second answer.
Explanation:
identify Whether the flu is a viral or bacterial in nature.
Are viruses living or non-living?
Would antibiotics be helpful towards the influenze virus structure.
No Links Pleaseoduce by the process of
Answer:
Viruses are Non- living they can't keep themselves in a stable state, they don't grow, and they can't make their own energy. Antibiotics won't help, and their side effects could cause harm. Because flu is a viral illness, antibiotics won't help to treat it.
Explanation:
You burn a log on a fire. You use the fire to warm yourself and to light up the
room to read a book. Which energy transformation is taking place?
A. Chemical energy is transformed to nuclear energy and thermal
energy
B. Chemical energy is transformed to light energy and thermal
energy
C. Thermal energy is transformed to light energy and chemical
energy
D. Nuclear energy is transformed to potential energy and thermal
energy.
Answer:
b) is the the answer
Explanation:
hope it helps
which two processes indicate that water is gaining thermal energy
A. evaporating
B. condensing
C. freezing
D. boiling
Answer:
A. evaporating, D. boiling
Explanation:
Condensation, deposition, and freezing are processes that occur as a result of a decrease in the heat energy of water particles.
What hormones stimulate the cycle of egg or sperm production?
Answer: The main reproductive hormones are estrogen and testosterone. Once a girl enters puberty, estrogen matures the eggs in the ovaries. These are then released at regular intervals during the menstrual cycle. Testosterone stimulates the production of sperm in men.
Explanation:
Plants have structures which affect reproduction rates in plants.
A. True
B. False
Answer:
i think it is false
Explanation:
i could be wrong
I really need help please somebody...
Answer:
first choice: 25%
Explanation:
when crossing Aa x aa, there is a 25% chance that the outcome will be Aa, giving the resulting cattle offspring horns. Hope this helps!
Why is global warning considered a controversial issue?
answer: The global warming controversy concerns the public debate over whether global warming is occurring, how much has occurred in modern times, what has caused it, what its effects will be, whether any action can or should be taken to curb it, and if so what that action should be. In the scientific literature, there is a strong consensus that global surface temperatures have increased in recent decades and that the trend is caused by human-induced emissions of greenhouse gases.[1][2][3][4][5][6] No scientific body of national or international standing disagrees with this view,[7] though a few organizations with members in extractive industries hold non-committal positions,[8] and some have attempted to convince the public that climate change is not happening, or if the climate is changing it is not because of human influence,[9] attempting to sow doubt in the scientific consensus.
Individuals in a population of purple people earters are polymorphic at a single locus that leads to variation in purple people eater pup viability. 45% of the pups with genotype PP are viable, 54% of pups with genotype Pp are viable, but only 4% of pups with genotype pp are viable. What model of natural selection best fits these data
Answer:
The correct answer is - overdominance.
Explanation:
In the given question, genotype Pp is a heterozygote condition that has a 54% survival rate or fitness thus these individual people get more chance of mating and increase in number as compared to the other two conditions of PP or pp traits where PP has 45% survivability, less than heterozygous condition and more than pp that has only 4% rate.
It results in a normalizing selection model of natural selection as a moderate trait, that is heterozygote, is selected. Thus, the selection of overdominance which means heterozygote condition produces a better phenotype than PP or pp parents is heterosis.