the gypsy moth is a pest species whose larvae feed on the leaves of hardwood trees. the population size of gypsy moths naturally changes in cycles. as a result, the amount of defoliation caused by the moths also fluctuates. which statement describes how the change in size of the gypsy moth population from 1972 to 1981 most likely affected the ecosystems represented by the maps?
Answer:
where are the choices?
Explanation:
What is a base-pair substitution?
(gene mutation)
Answer:
noun, plural: base pair substitutions. A type of mutation involving replacement or substitution of a single nucleotide base with another in DNA or RNA molecule. Supplement. This type of mutation occurring in noncoding sequences often does not result in an altered amino acid sequence during translation.
Explanation:
hope that helps:)
:-) :-) :-) :-) :-) :-) :-) :-) :-)
WILL GIVE 30 POINTS IF YOU GET THE RIGHT ANSWER
Answer:
3. Spiral galaxies revolve around a single point and gas spinning arms of stars extending from the center
4. Star 4 will stay on the main sequence for the longest time.
Explanation:
A galaxy is a system of gases, dust, and billions of stars and their solar systems, and dark matter which are bound together by gravity. Types of galaxies based on structure are elliptical, spiral, irregular and barred spiral.
Spiral galaxies have a spiral shape consisting of a central bulge, a halo, a disk, and spiral arms. At the center of revolution of the galaxy is the bulge which contains older stars. The disk contains gas, dust and younger stars which extend as spiral arms. The halo is found around the bulge and contains old cluster of stars. Ab example of a spiral galaxy is our Milky Way galaxy.
4. The mass of a star is related to its luminosity as well as its position on the main sequence. High solar mass stars have high luminosity and therefore spend the least time on the main sequence whereas low solar mass stars have low luminosity and spend the most time on the main sequence.
Therefore, Star 4 having the lowest solar mass will spend the most time on the main sequence.
3.The human body has many cells that are deep inside the body. For this
reason, the human body requires (1) a transport system and other organs (2) carbon dioxide from the air (3) the breakdown of glucose by the digestive system
Answer:
a transport system an other organs
Most air pollution results from ____.
a. the burning of fossil fuels
b. nuclear energy use
c. volcanic eruptions
d. the evaporation of chemicals such as paints and dry-cleaning fluid
Answer:
a
Explanation:
mostly lot of pollutants are from fosills therefore it is true that most of pollusions are from fossil fuels
Which of these statements about enzymes is true? Select
all correct answers.
a. Enzymes can help break chemical bonds.
b. Enzymes always change their shape when they bind
to a molecule.
c. Enzymes can break down a variety of different
substances.
d. An enzyme’s shape is related to the shape of the
substrate it binds to.
Answer:
b. Enzymes always change their shape when they bind to a molecule.
d. An enzyme’s shape is related to the shape of the substrate it binds to.
Explanation:
Enzymes are proteins that are secreted by special cells in living organisms. They are the organic catalysts of biochemical reactions.
The role of the enzyme in the enzyme catalyzed reaction is to bring reactants together on its surface so as to have better interactions.
Enzymes have the capability to fit the substrate into an induced fit position.
The process by which enzymes change shape in a reaction is called the induced fit.
This way an enzyme holds the substrate tightly for the reactions to occur.
What differentiates passive transport from active transport?
A. Proteins have a role in passive transport.
B. Molecules move down a concentration gradient during passive transport.
C. Passive transport involves molecules moving across the cell membrane.
D. ATP is needed for passive transport to occur.
Answer:b
Explanation:
name the animals that the small fish eat
Answer:
Some creatures, including cnidarians, octopuses, squid, spiders, sharks, cetaceans, grizzly bears, jaguars, wolves, Sea lion, snakes, turtles, and sea gulls, may have fish as significant if not dominant portions of their diets. The ecological effects of piscivores can extend to other food chains.
Explanation:
For a particular trait, the allele C is dominant over the allele c. The Punnett square shows the genetic cross of two parents, each with genotype Cc. What percentage of the offspring will show the phenotypes of the dominant allele and the recessive allele
Answer:
There is no punnet square in this question but it can still be answered based on the information provided.
Phenotypes of the dominant allele= 75%
Phenotypes of the recessive allele= 25%
Explanation:
This question involves a single gene that encodes a particular trait. The allele C is dominant over the allele c. This means an heterozygous (Cc) will have the phenotype encoded by allele C. A dominant allele is the allele that masks the phenotypic expression of another allele. The allele being masked is the recessive allele.
According to this question, two parents, each with genotype Cc were crossed. This means that each parent will produce the gametes: C and c. Using these gametes in a punnet square (see attached image), the following genotype of offsprings will be produced:
CC, Cc, Cc and cc.
- Offsprings with genotypes CC, Cc, Cc will show the phenotypes of the dominant allele (C) because allele C is dominant. Hence, the percentage is 3/4 × 100 = 75%.
- Offsprings with genotypes cc will show the phenotypes of the recessive allele (c). Hence, the percentage is 1/4 × 100 = 25%.
Which of the following is NOT a product of anaerobic respiration (fermentation)?
A.CO2
B.Ethanol
C.O2
D.Lactic Acid
Answer: C.O2
..............
Answer:
B) Ethanol ..hope this helped.
Explanation:
how do daily activities impact the environment?
Answer:
Daily activities like going to work is impacting the environment by polluting the air and killing and hurting plants, trees, and animals. When that happens the population of that animal or plant starts dying and eventually they start going extinct.
Explanation:
Hope this helps!
In the experiment to obtain pure water from ink , what colour will be steam be ?
Answer:
It should be just normal cloudy if the boiling point of water is less compared to ink if not then blue cause its evaporating.
Explanation:
Chronic traumatic encephalopathy (CTE) is caused by a single blow to the head.
Which codon is the start signal for translation?
AUG
UAA
ATG
UGA
Answer:
UGA is the start signal for a translation.
the most common form of fossilization is
a. preserved remains
b. perminerialization
c. molds
d. replacement
Answer:
permineralization
Explanation:
Which species has a higher reproduction potential?
A. Humans
B. Butterflies
C. Dogs
PLEASE HELP ME
Answer:
B
Explanation:
i dont really know but i guess this?
Answer:
I´m pretty sure dogs
Explanation:
because they are PrObAbLy the easiest to get to copy you. hope this helped. and forgive me if im wrong because im only in 6th grade (,:
2. A high tide occurred at 6:00 a.m. at a
beach on Long Island. The next high tide at
this same beach would occur at
approximately
(1) 12:15 p.m. on the same day
(2) 6:30 p.m. on the same day
(3) 12:45 p.m. on the following day
(4) 7:00 a.m. on the following day
Answer:
B-6:30p.m. on the same day
Explanation:
Smallpox is caused by a virus that infects people causing painful sores. Jenner performed his smallpox vaccine experiment in 1796. Using your knowledge of the immune system and vaccines explain how humans were able to get rid of this disease in the human population by 1980.
Answer:
Vaccines are samples of a specific virus. This sample gets the immune system ready and weary of the virus. Jenner used fluid from a smallpox patient and added it to a wound of another person. The person recieving the vaccination did not get the virus. Of course, vaccination technology has improved greatly. By continuosly vaccinating, the small pox virus had no vessels to infect and eventually, died off.
Explanation:
True or False: The Ocean looks blue because it absorbs blue wavelengths from the sky more slowly than it does the other colors. which means it only appears blue to us when in reality it is every color
Answer:
true-ish
Explanation:
the blue of the ocean is a reflection of the sky which is why you see the reflection of the clouds if you look into the ocean. therfore the water does appear blue. it is not every color though.for example you poor a glass of water. it is clear not every color.
A leaf cell has a very low concentration of salt. What would happen to a leaf cell if it were placed in a highly concentrated salt solution?
A) The cell would lose water and the membrane would shrink slightly
B) The cell would gain water and break the cell wall
C) The cell would gain water and stretch the cell wall
D) The cell would lose water and the membrane would collapse
Answer: D if I am correct
Answer:
D) The cell would lose water and the membrane would collapse
Explanation:
what are the group of individuals that interbreed and produce offspring
Answer:
Specie
Explanation:
They are a group that interbreed with each other, only, since they cannot produce fertile offspring with those of another species.
Answer:a species is a group of individual organisms that interbreed and produce fertile,viable offspring. According to this infection,one species is distinguished from another when in nature, it is not possible for matings between individuals form eahh gn species produce fertile offspring
Explanation:
Having extra fingers (polydactyly) is a dominant trait. Having just 10 fingers is a recessive trait. How can you explain that almost (if not everyone) you know has the "normal" number of fingers? Look at the list of dominant vs recessive genes and give another example of a recessive gene being more common than a dominant one and explain why you think that dominance or recessiveness is not related to how often a trait occurs in a population
Answer:
Explanation:
Polydactyly is a mutation, it is a sudden change that can be heritable that occurs.
Because mutation does not always occur the chances of having large number of people having the traits in a dominant form is low, hence more people will have normal finger.
Dominance is not the number of time a traits occur, it is the ability of a allele to be expressed over another. The expressed allele i.e that is seen in the phenotype of such individual is the dominant allele while recessive allele are the one whose effect are mask.
Having a round eye is an example of a recessive traits that people posses but are expressed in some individual.
1. Explain how immunizations work to protect the body against pathogens and antigens. Refer to B-cells and T-cells in your answer. Discuss how and why science would need to find a way to discourage thymus atrophy if human life is ever to expand beyond around 120 years.
2. Describe the sources of antibodies in humans from pre-birth to old age, including how our bodies change over time as we age.
3. You suspect a patient is suffering from a systemic inflammatory response. What two things could you check relatively easily to detect signs of such a response, and which one of those two symptoms may on its own require emergency intervention?
4. A running joke among viewers of the medical drama House was that “it’s never lupus,” even though it frequently came up as a possible diagnosis to the patient-of-the-week’s symptoms. Why is lupus sometimes a difficult disease to diagnose but would often come up as doctors discuss a patient’s symptoms? What is the treatment regimen for Lupus?
5. Compare and contrast passive and active immunity, covering at least four functions, components, or mechanisms related to immune response. Include at least one way in which they are similar and one way in which they are different.
!!!WILL MAKE BRAINLIEST AND GIVE OUT ALL MY POINTS TO WHOEVER ANSWERS THESE QUESTIONS CORRECTLY!!! PLEASE HELP ME
In this exercise we have to use the knowledge of immunization, in this way we will be able to answer the questions on this topic. So we find that:
1)The invulnerable system, that happen integrated into all concerning living organisms arrangement, protects the body against contamination and different external and within insults by make use of three distinct tier, contingent upon the nature of the danger.
2)Neonates happen physiologically immunodeficient, signification both their native and adjusting immunological reaction are considerably hold in check. In fact, many of the infections gained without special exertion by neonates exist bring about by low-resentment living thing like staphylococcus and pseudomonas.
3)Clinically, the Systemic Inflammatory Response Syndrome (SIRS) exist label by two or more sign of illness or problem containing state of high temperature or agitation.
4) If human growth search out at any time extend beyond 120 old age, methodical study of part of material world give need to guide physically to discourage organ meat disintegration.
5)Active exemption occurs when our own invulnerable method is responsible for guard from harm us from a bacterium. Passive exemption occurs when we exist protected from a bacterium by exemption gained from other person.
In this way we can answer immunization questions such as:
1)The invulnerable system, that happen integrated into all concerning living organisms arrangement, protects the body against contamination and different external and within insults by make use of three distinct tier, contingent upon the nature of the danger: concerning the body and biochemical hurdle, abundant different invulnerable container, and antibodies.
2)Neonates happen physiologically immunodeficient, signification both their native and adjusting immunological reaction are considerably hold in check. Once innate, a child’s immune scheme responds genially to protein antigens and less so to glycoproteins and polysaccharides.
3) Clinically, the Systemic Inflammatory Response Syndrome (SIRS) exist label by two or more sign of illness or problem containing state of high temperature or agitation or hypothermia, heart attack, tachypnoea and change fashionable red body fluid leucocyte count.
4)One habit the physique protects against pathogens and antigens is through humoral exemption. White blood cells produce antibodies that flow through the material’s red body fluid and lymph, also known as the bulk’s humors.
They follow and devastate the pathogens fashionable the humoral systems. T-smallest living organism enhance supply instructions to label a different type of bacterium or irritant. If the invulnerable system doesn’t test T-smallest living organism to be in a dispute or fight a bacterium or antigen, it will initiate something B-small room. These small room identify the pathogen and demolish it through the creating of goods of an antitoxin. They not only produce one type of microscopic organism, but they bear the skill to produce antibodies that exist required to devastate particular ailment.They use up their data banks try to find the often causing illness that will fit accompanying the trespasser, and if one doesn’t be living, they will produce individual over time.If human growth search out at any time extend beyond 120 old age, methodical study of part of material world give need to guide physically to discourage organ meat disintegration.
5)Active exemption occurs when our own invulnerable method is responsible for guard from harm us from a bacterium. Passive exemption occurs when we exist protected from a bacterium by exemption gained from other person.
See more about immunization at brainly.com/question/8189807
When economic conditions are favorable, more effort can be put into synthetic materials that satisfy desires and not just needs.
O True
O False
Answer:
True
Explanation:
The correct answer would be true.
A favorable economic condition in an area means that a large percentage of the population of the people in the area already have their basic needs met. According to Abraham Maslow, when basic needs are met, human needs graduate from basics to more sophisticated ones. Consequently, production efforts can be put into producing material that satisfies desires and not just needs.
What cell organelle conducts cell respiration
Answer: Mitochondria
Explanation:
Why would an enginner not chooese material such as concrete when designing an earthquake proof
builing?
Answer:
Materials like concrete can absorb very little energy, making them very suseptible to minor earthquakes.
HELP NEED THIS ASAP!! I WILL GIVE YOU BRAINLYEST!!
What is the simplest level of organization?
Answer: Atoms
Explanation:
hope this helps
A scientist discovers what he thinks is a cell. Which question about this new discovery should the scientist answer first to determine if
it is a cell?
A) How long does it live?
B) Can it reproduce itself?
C) How large can it grow?
D) Does it contain DNA?
Answer: B
Explanation:
When science alters or clones genes and inserts them into an existing strand of DNA to make a new trait is know as:
O selective breeding
O genetic engineering
O natural selection
O gene therapy
In your own words how would you define a prokaryotic cell versus a eukaryotic cell?
Answer:
ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
Explanation:
The main difference between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus,while prokaryotic cell do not. On the other hand, prokaryotic have no membrane-bound organelles. Another important difference is the structure of DNA