Answer:
alleles of a gene separate from each other during meiosis.
Explanation:
Mendel observed that the F1 expressed only one of the alternative variants (in this case, only rounded seeds appeared), while the other variant (wrinkle) disappeared. Mendel named "dominant" the expressed variant. Mendel allowed auto pollination and observed that in the second generation, F2, the other disappeared variant reappeared. Both alternative variants were present in the F2. Mendel named "recessive" the second alternative variant.
Mendel thought that hereditary traits determined by discrete factors were the possible explication for these phenotypes. These factors should have been present in the F1 in pairs. One of them came from one parental plant, and the other factor came from the other plant. These factors then separated again when sex cells were produced, giving two types of gametes, each with only one factor.
Mendel concluded that each individual (plant) has a pair of factors (alleles), one for each trait (R and r) and that the pair separates (segregates) during the formation of the gametes. This conclusion is known as the segregation principle (First Mendels´ Low).
You are touring several ecosystems, including an icy coastline in the Arctic, and a dry desert in the southwest United States. Do you predict that you will observe equal numbers of ectotherms and endotherms in all ecosystems? Explain your prediction.
Answer:
No.
Explanation:
No, we observe different number of ectotherms and endotherms in Arctic, and a dry desert ecosystems because there is difference in the temperature of both the environment. Due to difference in temperature of the external environment, the number of ectotherms and endotherms are present in that ecosystem. More number of ectoderms are present in the desert ecosystem where the ectoderms survive better than endotherms so we can say that number or population is different.
I need help I WILL GIVE BRAINLIEST!
Answer:
Its Mars
Explanation:
8. TRUE FALSE Stimuli may include sights, sounds, tastes, and smells. plz answer thanks
Answer:
True
Explanation:
Our senses include both exteroception (stimuli that occur outside of our body) and interoception (stimuli occurring inside of our bodies). Our primary senses are considered to be sight, hearing, taste, smell, and touch
Answer:
True!
Explanation:
Stimuli is a thing or event that evokes a specific functional reaction in an organ or tissue. Like for example, you see a snake! That is using your sight. And since you see that snake, you run away.
Hope this helps!
Disease that can be pass from one organism to another are considered
Answer:
They are considered infectious or contagious :)
When the population of ant (prey) increases, what would you predict the population of the ant-lion (predator) would do?
Answer: Because there is more food available to them.
Explanation: if the ant ( prey ) were to instead decrease then the ant - lion ( predator ) would decrease instead due to lack of food population at some certain point of time.
HOPE THIS HELPS
Answer:
B. Because there is more food available to them. Explanation: if the ant ( prey ) were to instead decrease then the ant - lion ( predator ) would decrease instead due to lack of food population at some certain point of time.
Explanation:
Which of the following lists the eight levels of classification in the correct order?
A)domain, kingdom, class, phylum, family, order, genus, species
B)kingdom, domain, phylum, order, class, family, genus, species
C)domain, kingdom, phylum, class, order, family, genus, species
D)kingdom, domain, phylum, class, order, family, genus, species
Answer:
D
Explanation:
kingdom,domain,phylum,class,order,family,genus,speciedWhat is the underground portion of the mushroom called?
mycellium
hyphae
stalk
spores
Answer:
mycellium
Explanation:
Can you please help me?
Answer:
The Answers are beneficial effect on the protein and harmful effect on the protein
DNA contains instructions for making the different molecules, such as proteins, that a cell needs to grow and function. To use these instructions, the DNA must first be _______ into _______.
A.
translated; amino acids
B.
translated; mRNA
C.
transcribed, mRNA
D.
transcribed; amino acids
Answer:
C. transcribed, mRNA
Explanation:
DNA, also known as deoxyribonucleic acid, is a molecule that holds genetic information needed to make other molecules in living organisms. However, before this genetic information can be harnessed, it needs to be expressed via two processes called transcription and translation.
Transcription is the first of the two processes that take place during genetic expression. It involves the synthesis of mRNA molecule from a DNA template. In other words, the DNA must first be TRANSCRIBED into mRNA.
using the cladogram, who is the closest relative to the bird ?
- rabbit
- shark
- ray-finned fish
- crocodile
Answer:
Crocidile
Explanation:
what are the names of the tree domains
A.bacteria,archaea,eukaryotic
B.bacteria,archaea,animalia
C.archaea,plantista,animalia
D. Life,animals,plants
An enhancer consists of a group of control elements controlling the same gene.
True
False
Answer:
True
Explanation:
¿En que proceso de reproducción bacteriana no se produce la recombinación?
Answer:
Puesto que las bacterias "hijas" son geneticamente idénticas a la célula madre, la fisión binaria no da oportunidad a la recombinación o diversidad genética (más allá de la mutación aleatoria ocasional). Esto contrasta con la reproducción sexual.
hrips are insects that feed on rose pollen. Scientists noted that the thrips population increased in the spring and decreased dramatically during the summer. The researchers hypothesized that food abundance was the limiting factor for the population. Which of the following types of data would be most useful for the scientists to collect at regular intervals on a designated test plot of rose plants?
A. Amount of sunlight (hours/day)
B. Mean temperature (°C)
C. Density of rose pollen produced (g/m2)
D. Amount of pollen produced by each flower (g/flower)
Answer: Density of rose pollen produced (g/m2)
Explanation:
The data that would be most useful for the scientists to collect at regular intervals on a designated test plot of rose plants is the density of rose pollen produced (g/m2).
It should be noted that the amount if sunlight or the mean temperature isn't the appropriate data that's useful in this case. Therefore, the correct option is D.
Suppose you had a paper cut on your finger. Although the cut may have bled and stung a little, after a few days, the cut may have completely healed. Since you don’t actually have a cut on your finger, answer the following questions:
1. How do you think the body repairs an injury, such as a cut on a finger?
please help
2. What advantages help the peppered moth stay alive from birth to adulthood?
Natural Selection
1. Explain the impact of the industrial revolution on the environment in England.
2.
3. What evidence led scientists to believe that moth color was genetic and passed from parent to offspring?
4. Explain how natural selection influenced the species of moths to change over time.
5. What is industrial melanism?
6. Since the industrial revolution, there have been improved environmental standards and reduced pollution. Explain why the number of light colored moths is increasing.
Dr. Kettlewell
1. Kettlewell tested whether dark colored moths lived in polluted forests and light colored moths lived in clean forests? Explain his test.
2.
3. How did Kettlewell test bird predation on moths?
4. How did Kettlewell test if dark moths lived longer in dark forests?
5. What did Kettlewell conclude based on his results?
Work through the How to Play and then Play the game by working through simulations for both light and dark forests.
After each simulation record how the moth population in your forest changed. Include the percents of both light and dark moth populations.
(table below)
Percent of Light Moths Remaining Percent of Dark Moths Remaining
Light Forest
Dark Forest
1. Explain the theory of Natural Selection in your own words. How did the moth population change over time?
2. What selective pressure drove the moth population to change during the industrial revolution?
Answer:
Explanation: 2. the environment, its genetics
1. the industrial revolution, by carrying steam engines polluted the air
3. the change that they were having from parents to children in the colors, and the variation that they had
4. the moths were changing to better survive their environment
5. is the change of the wings of flying species due to pollution
6. Because there is little pollution, industrial melanism is reduced, which allows the moths to change to light colors
I did not understand the rest, but I hope this helps you
Conduct research to learn more about your proposed solutions. Be sure to look up information about cost, safety, reliability, and social or cultural implications when applicable. What are the pros of each solution? What are the cons of each solution?
The proposed solution depends on the problem to be solved and it takes into account different sources of information.
What is a proposed solution?A proposed solution can be defined as a type of explanation to solve a given problem, which has pros and cons that must be considered prior to take it.
The different sources of information to reach a solution may include cost, reliability, safety, etc.In conclusion, the proposed solution depends on the problem to be solved and it takes into account different sources of information.
Learn more about problem-solving here:
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Dental caries are most effectively controlled by: a. fluoride treatment b. bacteriophage treatment c. all of the above d. none of the above
Answer:
Flouride treatment
Explanation:
Dental caries refer to a tooth decay that lead to permanent holes in the teeth. It is more controlled by flouride treatment because flouride is a powerful mineral Fluoride help to make teeth develop resistant acid attacks contain in sugars and also bacteria thereby preventing tooth decay and also reverses it.
A mass grave has been found and you are called to help identify the victims. The victims are not readily identifiable, but you have information on possible missing people. You can ask their families to provide you with one thing for each missing person. Using this item, you will use it to try to identify the people in the mass grave. What item of the missing people should you ask for?
The person's cell phone
Some clean clothing that the victim would have worn
The person's passport or driver's license
The person's hairbrush with hair attached
Answer:
c
Explanation:
hair in the brush may have hair follicles attached which can provide enough DNA to identify someone.
Answer:
c
Explanation:
What cell organelle makes turgor pressure in a plant cell possible? Describe the role of this organelle in this process.
Answer:
Explanation: The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress. It also allows cells to develop turgor pressure, which is the pressure of the cell contents against the cell wall.
The predator-prey relationship is a key factor in balancing the resources in the ecosystem. Population size can be affected if this relationship is not balanced. How does the predator-prey relationship affect population size?
Answer:
a predator kills off the pray, take the predator away and u get too much prey so they eat all the grass or berries and die of starvation
What caused an increase in the coronavirus's genetic variation?
Answer:
The structure in coronavirus has no rewriting ability which leads to many errors during replication and high genetic variation. i think :)
Explanation:
When the stoma is closed what two plant processes cannot occur?
Answer:
They cannot take up carbon dioxide.
Explanation:
Hw many bones make up the axial skeleton
Explanation:
80 bones
SEER Training: Axial Skeleton (80 bones)
Melanie is asked to list the complementary base pairings of a DNA sample in her lab. What is the MOST appropriate response she can give? Group of answer choices ST, RJ, CO, DI, SE RFLP and PCR chromosomes and genes AT, CG, CG, AT, CG
Answer:
AT, CG, CG, AT, CG
Explanation:
Deoxyribonucleic acid, known as DNA, is a double-stranded molecule that constitutes the genetic information of a cell. DNA is a nucleic acid made up of monomeric units called NUCLEOTIDE. In other words, DNA is a long chain of nucleotides. The nucleotides are four bases namely; Adenine (A), Thymine (T), Cytosine (C) and Guanine (G).
In the DNA molecule, one strand made up of nucleotides is paired to another strand containing complementary nucleotides. This means that the nucleotide bases of one strand of a DNA molecule is complementary to the bases of the other strand.
In this question, Melanie is asked to list the complementary base pairings of a DNA sample in her lab. Her best response will be the following: A-T, C-G, C-G, A-T, C-G. Note that, Adenine pairs with Thymine while Guanine pairs with Cytosine.
Identify the definition of biomagnification.
1.the accumulation over time of a chemical in a living organism.
2.the process of energy increasing in amount as you move up through the trophic levels in a food chain.
3.the accumulation of a chemical from food exposure that results in a concentration that is greater in higher trophic levels.
4.the process of using a microscope to inspect a living organism.
Answer:
3
Explanation:
basically biomagnification describes how toxins get in the body of a trophic level and increase over time as larger quantity of that trophic level are needed since only 10% of energy is transferred form one trophic level to the other.
How many and what type of people are likely to have the disorder?
Answer:
PTSD is a condition of the mind and brain that are in shock. What causes it will not matter in the end only understanding exactly in what manner are you in disorder and it’s important to realize it is you not your mine and not your brain as all is one sole integrated being. Your mind and your brain are you and there is no you with them as well.
The problem is that there are different kinds of PTSD, that’s one of the reasons people find it so hard to solve. What can work for one individual will not work for another as each case can be unique although they may all have something in common, in all cases the mind and the brain are being affected.
All psychological and emotional characteristics of human beings are associated with our mind and our brain. I am using words to simply convey an understanding so I say the mine and the brain but I am simply referring to people, human beings.
what is the most famous comet called?
Halley's Comet is the most well-known comet. It's a "periodic" comet that comes close to Earth once in 75 years, allowing a person to see it twice in his or her lifetime. It was last seen on Earth in 1986, and it is expected to appear in the year 2061.
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Which of the following is released during cellular respiration?
A. Carbon dioxide
B. Glucose
C. Mitochondria
D. Oxygen
Answer:
A.) Carbon Dioxide
Explanation:
The main purpose of cellular respiration is to produce ATP. However, one of the byproducts is carbon dioxide. We use the process of cellular respiration when we take in oxygen (so oxygen isn't the answer) and breathe out CO2. Cellular respiration takes place in the mitochondria, but that's not what's released.
Hope this helps!
Answer:
Carbon Dioxide
Explanation:
I took the test
Plsssss answer this for meeee
Answer:
ABC
Explanation:
air contains water vapor, lake has liquid H2O, clouds contain water in liquid or ice form.
I do not see snow in this pic, but if you see snow then pick D as well.