Answer:
The population of peppered moths thrived, because they camouflaged with the bark of the trees, thereby they were not easily seen by predators. Black moths were easily seen by predators and they were eaten as a result. Because the black moths did not survive, they were unable to reproduce offspring with those traits. However, peppered moths were able to reproduce offspring that were also peppered. During the industrial revolution, the colour of the bark darkened. This meant the peppered moths were easily seen by predators, so they were eaten. Black moths camouflaged with the bark, so now they weren't easily seen by predators. Now that the black moths survived, they could reproduce more black moths. But peppered moths weren't able to reproduce more peppered moths because most didn't survive. This is an example of how an abiotic factor, such as bark can affect a population of a species. Because the bark influenced the survival of the moths, some moths with the desirable traits survived, and others with the undesirable traits died.
Explanation:
Which of the following is a property of water? (4 points)
It can dissolve only acids.
It expands when it melts.
It exists naturally in only in two states.
It has a low surface tension.
It stores heat energy well.
Answer:
QUESTION NUMBER THREE DONEE YA BOIIIIIIIIII
Explanation:
Difference between phagocytes and red blood cells
New alleles can arise in both asexual and sexual reproduction.
Which of the following statements is TRUE based on the disadvantages of sexual and asexual reproduction.
A- Gametogenesis is the only source of genetic variation for sexual reproduction
B- This answer choice is wrong
C- Mutations are the only source of genetic variation for asexual reproduction
D- Meiosis is the only source of genetic variation for sexual reproduction
Answer:
C - Mutations are the only source of genetic variation for asexual reproduction
Mutations are the only source of genetic variation for asexual reproduction.
What is mutation?
A mutation is a change in the DNA sequence of an organism. Mutations can result from errors in DNA replication during cell division, exposure to mutagens or a viral infection.
Germline mutations (that occur in eggs and sperm) can be passed on to offspring, while somatic mutations (that occur in body cells) are not passed on.
A mutation is never so advantageous in real life that it makes someone a superhero or does anything strange like give them wings. There are numerous explanations for why mutations typically don't have significant effects.
Therefore, Mutations are the only source of genetic variation for asexual reproduction.
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What was the problem is Redi's experiment
a. How do maggots appear in meats?
b. How do worms appear in wood?
c. Is spontaneous generation a valid explanation for maggots in meats?
O d. All of the above are examples of problems.
HURRY PLEASE
Answer: c. Is spontaneous generation a valid explanation for maggots in meats?
Explanation:
What delivers oxygen around your body to different organs and tissues
Answer:
The blood circulatory system (cardiovascular system) delivers nutrients and oxygen to all cells in the body. It consists of the heart and the blood vessels running through the entire body. The arteries carry blood away from the heart; the veins carry it back to the heart.
Explanation:
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Researchers used DNA sequencing techniques to find similarities of Hox genes in roundworms, arthropods, mollusks, echinoderms, cephalochordates, and vertebrates. What did they find out about these genes? Select all that apply. A. Hox genes provide information about evolutionary relationships. B. Similarities among Hox genes suggest that they all arose from a single ancestral gene that duplicated many times. C. Hox genes are regulatory genes that determine body plans of animals. D. Only some animals that have been tested have Hox genes, suggesting that Hox genes have no function and only evolved recently.
Answer:
(B) Similarities among Hox genes suggest that they all arose from a single ancestral gene that duplicated many times.
Explanation:
Hox genes are arranged in clusters and their order on the chromosome is the same as the order in which they are expressed along the body during development.
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ASAP Arizona deserts have been transformed by: chemical fertilizers use of pesticides irrigation canals recycling plants
this is all the points i have 88
Answer:
irrigation canals
Explanation:
Answer:
irrigation canals
Explanation:
Which of the following invertebrates is most closely related to the vertebrates? Select all that apply.
1. echinoderms
2. cnidarians
3. arthropods
4. chordates
Answer:
I would say chordates. (Not absolutely sure so double check)
Explanation:
Chordates have a dorsal nerve cord, which is super close to a spinal cord. (Which vertebrates have.)
Answer: Echinoderms
Explanation:
The Echinoderms deuterosomes mouth development and bilateral symmetry in the larval stage lead some scientists to believe that they are the closest to vertebrates.
HELP ! can someone please explain to me on how to set it up ?
Answer:
The correct answer is -
4/4
100%
Explanation:
In this question, it is given that allele B (blue) is dominant over allele b (purple) and both Randal and cell have the same genotype of recessive alleles that is bb and bb.
The offspring of these two will be the same as the due to gametes Randall and cella produce are same which is b and b.
b b
b bb bb
b bb bb
here all four out of four have the same purple skin with 100% chances.
Which food preservation technique is Paul using?
Paul uses____ technique, which is the most modern technique of food processing and preservation. This technique uses____ rays to kills Insects, mlcrobes, bacteria, and fungi In food.
1. Freeze drying
2. Irradiation
3. Dehydration
__________
1. Alpha
2. Beta
3. Gamma
Answer:
Paul uses Irradiation. The technique uses gamma rays
Explanation:
Answer:
Agreed.
irradiation
gamma
Explanation:
Why do we not see the colors of the other pigments, such as yellow?
Answer:
there is so much chlorophyll in the leaves we simply cannot see the other pigments. But as the daylight shortens, the tree does not make as much chlorophyll. As the chlorophyll starts to fade away, we are able to see the other colors (pigments) in the leaf, mostly yellow ones.
Explanation:
Answer:
Subtractive color mixing occurs when light is reflected off a surface or is filtered through a translucent object. For example, a red pigment or filter only appears red because it absorbs (subtracts) all of the light that is not red and only reflects or allows the red light. if you mix blue with red light, you get magenta light. When you mix (add) all the colors of light together, you get white light. This is why it is referred to as additive color. With subtractive color, you see color because some wavelengths are being reflected and others are being absorbed ( subtracted ).
Explanation:
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Blood types;
A man with type O marries a woman with type AB.
Several children were born.
1. What is the genotype of the man?
2. What is the genotype of the woman?
3. True or false? the mother of the man had type AB blood.
4. Could the mother of the woman have type O blood?
5. what fraction of offspring would have type B blood?
6. what fraction of the children would have type AB blood?
7.Could this couple have a child with type O blood?
Answer:
A genotype is an organism's complete set of genetic material. Often though, genotype is used to ... If she mated with a man with haemophilia (another carrier) there would be a 75% chance of passing on the gene. A punnett square showing a ...
Explanation:
i just need these three labeled and i’m good lol
7. How is parasitism different from other types of symbiosis?
Products that we get from our ecosystems that we can use, buy, or sell; are which type of ecosystem service? Group of answer choices, Provisioning services, Supporting services, Cultural services, or Regulating services.
Answer:
Provision Services
Explanation:
A provisioning service is any type of benefit to people that can be extracted from nature. Along with food, other types of provisioning services include drinking water, timber, wood fuel, natural gas, oils, plants that can be made into clothes and other materials, and medicinal benefits.
What is NOT a solid waste ? A.Methane B.Grass clipping and leaves C.old cell phones
Answer:
A. Methane
Explanation:
Methane is a gas not a solid. Every other answer choice is a solid.
What ratio of plants in the offspring would you predict from a Yy x Yy cross?
Answer:
The correct answer is -
The genotype of offspring - 1:2:1 (YY:Yy:yy)
The phenotype of offspring - 3:1 (dominant trait: recessive trait)
Explanation:
In this question, it is stated that there is a cross between Yy and Yy. By the genotype of the parents, we can say that Y is dominant for a particular trait and y is recessive and the parents are in the heterozygous condition in this cross. The gametes these parents will produce are - Y and y and Y and y
then the cross of Yy and Yy would be -
Y y
Y YY Yy
y Yy yy
Offspring from this cross are YY, Yy, Yy, and yy which means the genotypic ratio is - 1:2:1 and the phenotypic ratio is - 3:1 as three out of four are dominant.
Help me please with both of them
Answer:
Routine
neglegted
Explanation:
that is my answer
Question 8
How can humans help to reduce ocean acidification?
a
Eat more fish so they will not breath so much carbon dioxide into the sea water.
b
Add chemicals to the ocean which will help to change the pH.
c
Reduce the amounts of fossil fuels used in industry and transportation.
d
Stop throwing plastics in the ocean.
Answer:
D
Explanation:
Because I learned this in Harvard
Answer:
C, Reduce the amounts of fossil fuels used in industry and transportation.
Explanation:
A makes no sense, B the chemcials can kill certain speices living in the ocean, and D plastic is oil, and oil isn't acidic (it's neutral- it isn't a base of an acid).
Tsunami waves are caused by earthquakes in the ocean floor. As the waves approach the shore, they usually grow in height. When this occurs, which aspect of the wave is changing?
A.
amplitude
B.
direction
C.
frequency
D.
speed
E.
wavelength
Answer:
LETTER A. AMPLITUDE
Explanation:
Got it right on the test
The diameter of a circle is 6 miles. What is the circle's circumference?
Answer: C=18.85
Explanation: c/circle, hope this helped
What is the MAIN difference between prokaryotic (bacteria) cells and eukaryotic cells?
A. Presence of Cell membrane
B. Presence of Nucleus
C. Presence of Cell Wall
D. Single-Cell vs Multicellular organisms
Answer:
Single cell vs Multicellular organisms
Explanation:
A prokaryote is a single celled organism such as bacteria, whereas eukaryotes are multicellular beings, such as humans and other forms of life made up of multiple cells.
Which is a valid claim about how meiosis I differs from meiosis II?
Answer:
Homologous pairs of cells are present in meiosis I and separate into chromosomes before meiosis II. In meiosis II, these chromosomes are further separated into sister chromatids. Meiosis I includes crossing over or recombination of genetic material between chromosome pairs, while meiosis II does not.
Explanation:
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Describe the role that the protein INSULIN plays in a red blood cell
Answer:
helps maintain blood sugar
:)
Explanation:
The beta cells of the pancreas produce a peptide hormone called insulin. It is an anabolic hormone that regulates the activity of proteins, fats and carbohydrates in the body.
In blood cells insulin helps to:
Keep blood glucose levels
The role can be explained as:
Insulin is the anabolic protein that helps in breaking down carbohydrates, fats and proteins consumed in food. They signal the muscle and liver cells to absorb the glucose molecules present in the blood.They help the cells and tissues to regulate the glucose uptake for energy and also to store the excess glucose as a glycogen molecule.When there is an increased glucose concentration in blood cells then insulin cues liver cells to convert it into glycogen for future use.In the case of insufficient blood glucose it alerts liver cells to split the glycogen molecule into glucose for furnishing power and to counteract out the equilibrium in the body.Therefore, insulin regulates blood glucose levels.
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How can two physically healthy parents produce a child with Down syndrome and a second child with Klinefelter syndrome?
Why is the pituitary gland called the master gland?
O It is the largest gland in the body.
It regulates the work of many glands in the body.
O It helps the brain master higher-level thinking processes.
It controls the heart, which is the master pumping organ in the body.
Answer:
THE CORRECT ANSWER IS B(It regulates the work of many glands in the body.)
Explanation:
Pituitary gland is known as the master gland because it influences the functioning of other glands like thyroid, testes, ovary etc for it's functioning as endocrine gland.
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The pituitary gland called the master gland because it regulates the work of many glands in the body.
Why is the pituitary gland called the master gland?The pituitary gland is also called the "master" gland of the endocrine system because it controls the functions of other endocrine glands. The pituitary gland is located at the base of the brain.
So we can conclude that the pituitary gland called the master gland because it regulates the work of many glands in the body.
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What are some warming behaviors an animal might perform to warm its body temperature up?
Why is taxonomy important to scientists?
Si tu masa corporal fuera 10 kg, ¿qué peso tendrías aquí en la tierra al
nivel del mar?
Answer: 98.1 N
Explanation:
En física, la masa es una magnitud y una propiedad que se mide en unidades, como kilogramos. Por otro lado, el peso es una magnitud vectorial o fuerza que se mide en netown (N). El cuerpo experimenta una atracción hacia la tierra, llamada gravedad, la cual es un fenómenos en donde dos objetos o cuerpos son atraídos entre sí. En este caso, la masa del cuerpo de 10 kg es muy inferior a la masa de la Tierra. Por lo que la atracción del cuerpo hacia la tierra es despreciable, y solo vamos a tomar en cuenta la atracción de la Tierra hacia el cuerpo.
La fuerza de gravedad a nivel del mar es de 9,81 metros/segundos^2. Reemplazando los datos en la ecuación de fuerza, la cual es:
Fuerza = masa x aceleración
obtenemos que:
Fuerza= 10 kg x 9,81 m/s^2 = 98.1 N
Por lo que el peso a nivel del mar es de 98.1 N.
Why do ionic compounds conduct electric current when they are dissolved in water?