Answer:
C.
Explanation:
Answer:
a
Explanation:
i looked it up (brainliest pls)
Dr. Kettlewell predicted that clean forests would have___________ colored moths, and polluted forests would have ____________ colored moths.
Moth type: Peppered moths.
Answer:
Dr. Kettlebell predicted that clean forests would have light peppered colored moths, and polluted forest would have dark peppered colored moths.
Explanation:
Kettlewell thought that if natural selection caused the change in moth population.
Dark moths resting on light trees were more likely to be eaten by birds then light moths.
Dr predicted the clean forest should have light-peppered and polluted forest have dark peppered.
Role of natural selection:At the time when Dr predicted the clean forest should have light-peppered and polluted forest have dark peppered.
So here the doctor think that the natural selection leads the change in the moth population. Also, the dark moth should be rested on the light trees that eaten by the birds as compared to the light moth.
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An animal jaw that has small incisors and canines but wide premolars and molars may belong to a _____. a. beaver c. horse b. dolphin d. wolf
There is less need for canines and incisors in herbivorous animals as it is mainly used to tear the flesh. Herbivorous animals mainly have developed premolars and molars to grind the grass properly. Horse has small incisors and canines but wide premolars and molars.
What are the different types of teeth?Teeth are usually covered with a hard substance called enamel which helps them to be strong. Its color is slightly yellow.
Teeth are of four types. Namely:
Incisor: These are located at the front and are used to cut the food.Canine: These are at the sides of incisors and are generally used for tearing the flesh. pre-molars: These are present near the corner of the jaw before molars and are used to grind.Molars: these are at the corner of the jaw and are also used for grinding food.Canines are well developed in carnivorous animals as they need to tear the flesh. But in the case of herbivores, these are comparatively smaller.
Thus, an animal jaw that has small incisors and canines but wide premolars and molars may belong to a horse.
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Which of the following describes a mutual relationship?
A pack of hyenas hunt together so they can attack larger animals.
Ants drink nectar from an acacia tree and protect the tree from harmful insects.
A flock of seagulls fly together to reduce the amount of air resistance they feel.
A grasshopper and a rabbit eat different types of plants to avoid competition.
Answer:
b
Explanation:
Volcanos or the Earth's crust. Which came first and why?
Answer:
Earths Crust
Explanation:
Earth was made before any kind of landscape.
Valcanoes were formed after a pit of lava was filled up.
Answer:
The earths crust came first because the movement of the plates that make up the earths crust create volcanos.
Explanation:
Viruses are often confused with living things. This is because
Viruses are composed of proteins and genetic material; they maintain
homeostasis
Viruses are composed of proteins and genetic material; they possess the ability
to produce proteins
O Viruses are composed of proteins and genetic material; they possess a
metabolism and ability to produce proteins
Viruses are composed of proteins and genetic material; and may be classified
(sorted) by their amino acid sequences
Answer:
*
Explanation:
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea
A farmer uses genetic engineering to inject dairy cows with a genetically altered hormone (GAH) to result in the production of more milk. What might be a risk of using this technology to produce milk?
A.
Use of the GAH may increase the availability of milk.
B.
Use of the GAH may increase the amount of hormones in the milk.
C.
Use of the GAH may provide extra milk to feed the poor.
D.
Use of the GAH may allow the farmer to reduce milk prices.
Answer:
B
Explanation:
A farmer uses genetic engineering to inject dairy cows with a genetically altered hormone (GAH) to result in the production of more milk, and the use of the GAH may increase the amount of hormones in the milk, which is a risk that is present in Option B.
What is a genetically altered hormone(GAH)?The GAHs that are used in dairy farming can result in an increase in the levels of hormones such as insulin-like growth factor 1 (IGF-1) in the milk, and these hormones can be harmful to human health and are also associated with an increased risk of certain cancers, such as breast cancer and In addition to concerns about the health effects of GAHs, there are also environmental concerns. The increased milk production resulting from GAH use can lead to overproduction, and animals get harmed by these genetically altered hormones.
Hence, the use of the GAH may increase the amount of hormones in the milk, which is a risk that is present in Option B.
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To produce a valid test, the survey questions do not have to relate to the subject of the study?
Match the clue with the correct answer
Answer:
1 is rivulets I think or something like that
why is the coral reef more important than the ocean ?
Answer:
Coral reefs provide an important ecosystem for life underwater, protect coastal areas by reducing the power of waves hitting the coast, and provide a crucial source of income for millions of people. Coral reefs teem with diverse life. Thousands of spec
Hope it helps!!!
Explain how cell division allows changes in the DNA of a zygote to be inherited by future generations
Answer:
Explanation:
When cell divides, the DNA will replicate in the parent cell or make copies of itself and this will make the chromatics to split or divide in order to create a new cell or daughter cell which contain the exact same DNA. The daughter cell then pass these DNA to subsequent generations, when it also undergo cell division and the dna is been replicated
If water is being extracted from an underground aquifer at a lower rate than precipitation is replenishing the aquifer, then the aquifer will eventually fill beyond
capacity.
True
False
Answer:
True
Explanation:
If precipitation occurs more frequently and it precipitates more than what is being extracted, it will eventually fill beyond capacity.
A single elephant is an example of a(n)
Answer: organism
Explanation:
An organism because that means a single living thing.
It wouldn't be a biome because that is a certain place for example a forest, the desert etc.
It wouldn't be a population because that is more than one and we just want one elephant.
And it wouldn't be a community because that is still more than one.
Hope this helps :)
Answer:
population
Explanation:
well it's population because population that is a an example of a n
Based on your hypothesis, which population(s) would be hurt if bears were added?
Answer:
The correct answer would be - plants, and small animals like moose, rodents, deer and others as bears are omnivorous animals.
Explanation:
In any forest ecosystem, mostly in the forest ecosystem, beers depend on various kinds of animals and plants for their nutrition and energy. They depend on plants that are rich in berries, fruits, and flesh roots. Beers also eat small animals such as rodents, fishes, and hoofed animals.
Therefore, an increase in the number of beers in any ecosystem will lead to a decrease in the population of these organisms and their population including plants.
Question 7
Which equation correctly represents a change in population density?
Change in Population Density = (Births + Immigration) - (Deaths + Emigration)
B.
Change in Population Density = (Births + Emigration) - (Deaths + Immigration)
С
Change in Population Density = (Births - Immigration) + (Deaths + Emigration)
D
Change in Population Density = (Births + Immigration) + (Deaths - Emigration)
Answer:
Its D. I hope this helps!
The equation that correctly represents a change in population density is as follows: Change in Population Density = (Births + Immigration) - (Deaths + Emigration).
What is population density?Population density refers to average population per unit area; especially, the average number of organism living on each km² of land.
A change in the population density is affected by the following factors:
Death rateBirth rateEmigrationImmigrationHowever, the equation that correctly represents a change in population density is as follows: Change in Population Density = (Births + Immigration) - (Deaths + Emigration).
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How do the different types of mutations affect the amino acid sequence of a polypeptide?
Answer:
the mutation changes one codon for an amino acid into another codon for that same amino acid. ... Silent substitutions never alter the amino acid sequence of the polypeptide chain. The severity of the effect of missense and nonsense mutations on the polypeptide will differ on a case-by-case basis.
3. How do genes
support the
evidence for
evolution?
The DNA sequence of gene molecules show similarities and differences which can be used to determine species' relatedness.
anyone down to be friends? :3
Answer:
sure , me :)
Explanation:
Which statement is true about prokaryotic cells?
I NEED HELP ASAP PLEASE
Answer:
A. They contain a single circular DNA molecule.
Explanation:
How does longitudinal binary fission differ from other forms of binary fission?
A. It creates four daughter cells instead of two.
B. It creates daughter cells that are mirror images of each other.
C. It only occurs in amoebas and paramecium.
D. Daughter cells are created, but over a longer period of time
SCIENCE
Why is the nervous system in the human body a system?
A. It is made of tissues that can conduct electricity, a required function in a system.
B. Like all systems, the nervous system is contained within a living organism.
C. It is made of several components that act interdependently to perform a function as a whole.
D. The nervous system acts together with other systems to control a larger organism
Answer:
The nervous system acts together with other systems to control a larger organism.
Explanation:
Moreover, it is formed by organs which are also formed by specific tissues.
Answer: C ( it is made of several components that act interdependently to perform a function as a whole)
Explanation: It's C because I took it for summer school and I got it correct (score: 3/3) : )
O Heat is the energy needed to change the temperature of 1 gota substance by to
O Heat is the average kinetic energy of the particles of a substance
O Heat is the total energy of a substance due to the movement of is partides.
O Heat is the energy that thows between buvo substances of different temperatures
IS MY FINAL EXAM I NEED HELP!
The base pairs in a DNA strand are held together with hydrogen bonds. In what way would a cell be most affected if these were covalent bonds Instead?
A) The cell would need to make new DNA each time the strand was opened
B) The cell would only be able to open and close the DNA strand when it replicated.
C)The would have to take in and use more energy in order to break the covalent bonds.
D)The cell would need to replace the nitrogenous bases each time the DNA strand opened.d
Answer:
I think C)The would have to take in and use more energy in order to break the covalent bonds.
Explanation:
Since hydrogen bonds are weaker than covalent bonds.
Is human development best characterized as a slow, gradual process, or is it best viewed as one of more abrupt change?
Answer:
Heyya!
Human development is a slow and gradual process. There seems to be slow and gradual change that becomes abrupt change. The mind has many connections and works according to past habits. A person who seeks to improve themselves will gradually change specific areas within their life. After a while there is a cascade effect that causes linked areas to be altered. Skills and methods that required practice and habit forming transition to being a natural part of life. When the personality suddenly changes, I use the term evolution. Whenever one occurs, the person will probably see their past self as problematic.
The human development is best characterized as the gradual change.
What is human development?Human development is explained as the method of increasing people's liberties and opportunities while also improving their well-being.
Human development is about the genuine freedom that ordinary people have to choose who they are, what they do, and how they live.
Cognitive theory is concerned with how a person's thought processes develop.
It also investigates how these thought processes affect how we perceive and interact with the world. One of the most influential theories of cognitive development was proposed by theorist Jean Piaget.
According to proponents of the continuity viewpoint, development is a continuous, gradual, and cumulative process. A child, for example, learns to crawl, then stand, and finally walk. They are slowly learning to walk.
Thus, the human development process is gradual.
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explain how the population of octopuses and seaweed in this ecosystem might be affected if a disease reduced the crab population
Answer:
Seaweed might start to grow out of control withough crabs eating it, octopuses on the other hand would struggle to find food and start to die off because they relie on crabs to be their food source.
Without crabs to consume it, seaweed would start to grow out of control; octopuses, on the other hand, might struggle to find food and begin to disappear because they depend on crabs as a food supply.
What is the role of seaweed and octopus in ecosystem?
Seaweeds are important components of marine ecosystems. They serve as the primary source of nutrients and energy for marine organisms.
Either directly when fronds are consumed or indirectly when decomposing sections break down into small particles that are ingested by filter-feeding species.
No other creature has a predatory function as significant as that played by octopuses in forming communities.
Therefore, the population of octopuses and seaweed in this ecosystem might be affected if a disease reduced the crab population.
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Question 3
As compared to developing countries, developed countries have a
A higher average income, a higher rate of population growth, and produce more waste.
B.
lower average income, a higher rate of population growth, and produce less waste.
С
higher average income, a lower rate of population growth, and produce more waste.
D
lower average income, a lower rate of population growth, and produce less waste.
Answer:
A
Explanation:
A
Which of the following would NOT be an example of Genetic
Engineering?
A.Gene Therapy
B.Natural Selection
C.Genetically Modified Organisms
D.Cloning
Answer:
B. Natural Selection, others are some what related to genetic engineering.
What makes two isotopes of the same element different from each other?
A. the electric charge of the atom
B. the number of electrons in the atom
c. the number of protons in the atomized nucleus
D. the number of neutrons in the atomic nucleus
Answer:
An isotope is one of two or more forms of the same chemical element. Different isotopes of an element have the same number of protons in the nucleus, giving them the same atomic number, but a different number of neutrons giving each elemental isotope a different atomic weight.
Explanation:
pretty sure its D
Hi I’m a 13 year old boy who’s underweight and short I am 4 foot 5 and 73 pounds how many calories should I eat to gain atleast 0.25 pounds of lean muscle mass a week
Answer:
i think your fine if you love your body then your good no need to change
Explanation:
A laboratory experiment requires 250 milliliters of water for boiling. It also requires 100 milliliters ofw
process.
horms the experiment three times, how much total water will the student need? Give your answerin
Answer:
550 milliliters of water is needed.
Explanation:
the student will need 550 milliliters of water for completing the whole experiment. 250 milliliters of water is needed for boiling purpose while on the other hand, 100 milliliters of water is needed for one process which can be repeated three times so the process needs 300 milliliters of water so by combining the 250 milliliters and 300 550 milliliters of water we get 550 milliliters of water for the whole experiment so we can say that the student needs 550 milliliters of water for the experiment.
DNA evidence is NOT used in court cases to
(A) identify and confirm genetic diseases.
(B) identify and confirm criminal suspects.
(C) determine paternity of individuals.
(D) free wrongfully convicted individuals.
DNA profiling is a forensic technique in criminal investigations, comparing criminal suspects' profiles to DNA evidence so as to assess the likelihood of their involvement in the crime. It is also used in parentage testing, to establish immigration eligibility, and in genealogical and medical research. DNA profiling has also been used in the study of animal and plant populations in the fields of zoology, botany, and agriculture.
Answer: A
Explanation: The majority of diseases are spread by bodily contact, microbes, and items. While it is true that some diseases are passed down through heredity, this fact is not used in court.
