Making an observation and asking a question is a part of the scientific method that is best illustrated by the biologist wondering why there were so few frogs in the second year compared to the first. Thus, the correct option is A.
What is the Scientific method?The scientific method may be defined as the procedure of objectively confirming attributes through testing and experimentation. It includes observation, hypothesis, prediction, operating an experiment, and finally investigating the results.
A biologist collected the data on the frog population before industrialization, but after a year there should be a considerable reduction in the population of frogs observed by a biologist. The cause of it is also determined by the biologist very well.
Therefore, the correct option for this question is A.
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what is cross breeding.write the types of breeding of goats.
Answer:
Cross Breeding is defined as mating two purebred organisms to produce offspring known as a Hybrid. The most common goat breeds include:
Boer goatAmerican PygmySaanen goatDamascus goatAngora goatBeetalSpanish goatWhat is Animalia Kingdom
[tex]{\huge \underline{{ \fbox \color{red}{A}}{\fbox \color{green}{n}}{\fbox \color{purple}{s}}{\fbox \color{brown}{w}}{\fbox \color{yellow}{e}}{\fbox \color{gray}{r } }}}[/tex]
It is composed of multicellular, eukaryotic, heterotrophic, aerobic, and immotile organisms that reproduce through spores, either sexually or asexually.
I hope I've helped : )
Answer:It is composed of multicellular, eukaryotic, heterotrophic, aerobic, and immotile organisms that reproduce through spores, either sexually or asexually.Explanation:
[tex]\sf XD [/tex]
according to newtons laws of motion, what causes an object to change its state of motion
Answer:
Newton's first law of motion states that there must be a cause which is a net external force for there to be any change in velocity, either a change in magnitude or direction.
The final products of meiosis are O A. muscle cells B. reproductive cells O c. homologous cells O D. skin cells
Answer:
B. Reproductive cells
Explanation:
Meiosis is a reduction cell division that is observed in germ cells or reproductive cells.
Based on your knowledge of immunological memory explain to your patient the physiological mechanisms that underlie active immunity and how it protects you from infections. Be sure to include a description of primary and secondary immune responses in terms that she will understand.
Immunological memory refers to the ability of the immune system to react previous antigen infections.
What are primary and secondary immune responses?The primary immune response refers to the initial interaction between the immune system with pathogenic microorganisms (e.g., bacteria).
The secondary immune responses refer to the second contact with the same pathogenic organism, which enables to the organism create specific antibodies against this pathogen through a process called immunological memory.
Active Immunity is a term used to refer to a type of acquired immunity caused by previous exposure to a pathogenic microorganism and/or vaccine inoculation.
Immunological memory leads to a faster and better response of the immune system against pathogen reinfection.
In conclusion, immunological memory refers to the ability of the immune system to react previous antigen infections.
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Which of the following is NOT true about steroid hormones?
Select one:
A. All of the choices are true.
B. They bind on cell membrane receptors.
C. The cannot be made in advance.
D. They have a long half-life.
E. They are derived from cholesterol.
For Physiology
Genes express themselves at different times because
A. this saves time
B. this saves space
C. this saves energy
D. Only b and c are correct
Answer:
D
Hope this helps!
Question 4 of 32
How does surface-to-volume ratio relate to the size of a cell?
O A. Small cells have a smaller surface-to-volume ratio than
larger cells.
OB. There is no relationship between surface-to-volume ratio
and cell size.
O c. Small cells have a greater surface-to-volume ratio than
larger cells.
O D. Surface-to-volume ratio remains constant as cells increase
in size.
Answer:
Small cells have a smaller surface-to-volume ratio than
larger cells.
How many moles
are in a bag of CaCl₂ that weighs 18.14kg
HELP PLS FOR BRAINLIEST AND THANKS
see attached image
Answer:
none of the other answer
Explanation:
because the chance of CF in child depends in having disease both father and mother if one of them have the disease then its maybe 1 in 1000 or more
Answer:
your answer is correct 1/4
Explanation:
since both parents are heterogeneous so the percentage that their new child will have this disease is 1/4 and this disease needs two alleles of cftr since it is recessive
name the cell organelle which is abundant in muscle cells
Answer:
Mitochondria is the cell organelle abundant in muscles cells.
Answer:
Mitochondria
Explanation:
Mitochondria is the power house of a cell as we know so as aerobic respiration takes place the mitochondria is always actively ready to release ATP(Adenosine triphosphate) also as energy
A template strand of DNA contains nucleotides in the following proportions: 14% adenine
(A), 33% thymine (T), 21% cytosine (C), and 32% guanine (G). What can you expect
the proportions of the nucleotides to be in the newly formed complementary strand?
Answer:
The proportions of nucleotides in the newly formed complimentary strand will be:
14% Thymine (T), 33% Adenine (A), 21% Guanine (G), 32% Cytosine (C).
Explanation:
In a double stranded DNA, the nucleotides of one strand binds with nucleotides of another strand through hydrogen bonds.
Adenine binds with thymine by two hydrogen bonds (A=T) and guanine binds with cytosine by three hydrogen bonds (G≡C).
So, the complimentary strand must have
thymine equal to the amount of adenine in template strand.adenine equal to the amount of thymine in template strand.guanine equal to the amount of cytosine in template strand.cytosine equal to the amount of guanine in template strand.A population of Poison dart frogs can be red (RR), orange (Rr) or yellow (rr). The allele frequency of the mainland is R: 0.5 r. 0.5. A small
group of the frogs moves to an island off the mainland. If the group is composed of 4 red and one orange frog, what would you expect to
happen to the allele frequency?
A. Increase towards the R allele
B. Increase towards the r allele
C. Stay the same as the mainland
D. Frequency of both alleles would decrease
Answer:
A
Explanation:
it will increase with a 4:1 ratio
As per the given scenario, the allele frequency will increase towards R allele. The correct option is A.
What is allele frequency?The number of times the allele of interest is observed in a population is divided by the overall number of copies of all the alleles at that particular genetic locus in the population to calculate the allele frequency.
In the given scenario, as group of the frogs moves to an island off the mainland, the allele frequency of R will increase.
Thus, the correct option is A.
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All of the following are factors affecting the rate of photosynthesis except.
1. temperature
2. ultraviolet radiation
3. light intensity 4. carbon dioxide presence.
Answer:
Ultraviolet radiation does not influence photosynthesis
Answer:
Ultraviolet Radiation
Explanation:
The correct answer is ultraviolet radiation. Temperature, carbon dioxide presence, and light intensity are all critical factors in determining the rate of photosynthesis.
Look at the following diagram
Which part of the car cycles were presented by A and C
Answer:
D. Photosynthesis
Explanation:
There is carbon dioxide from the atmosphere going to the tree from arrow C.
There is sunlight from the sun going to the tree from arrow A.
Carbon dioxide and sunlight and 2 of the reactants in the photosynthesis equation.
Photosynthesis:
6CO2 + 6H2O → C₆H₁₂O₆ + 6O₂
This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.
This food web is for a community near a small lake.
rabbit
fern
fox
squirrel
hawk
If the squirrels in this community died out, how would this change be most
likely to affect another organism in the community?
A. The rabbits would lose their food source.
B. The hawks would leave or find another food source.
C. The ferns would invade other ecosystems.
D. The foxes would have more space and food.
The squirrel dying out will lead to the hawks leaving or finding another food source and is denoted as option B.
What is Food web?
This is a series of interconnection of food chain and shows the feeding relationship between organisms in the ecosystem.
The squirrel is a food source for eagle which when unavailable will make the eagle to leave that area or look for alternatives.
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Answer: B. The hawks would leave or find another food source.
Explanation: I just took the test
Which short-term environmental change is
to directly affect a population of egrets along the coast
of Florida?
O drought
O earthquake
O forest fire
Answer:
The answer to your question is O drought
Explanation:
Birds live in place surrounded by water. Therefore meaning that if there was a drought they could be in danger.
I hope this helps and have a great day!
A recessive gene located on the X chromosome is the cause of one type of colorblindness (denoted by Xc). Let the genotype for normal vision be denoted by X+. Suppose a mother with normal vision (X+Xc) and a father with normal vision (X+Y) reproduce. Their child's possible genotypes can be illustrated with the following Punnett square. Punnett square If they have a daughter, her chance of having this type of colorblindness is %.
The scenario will be Son: 25% colorblind daughter: 25% colorblind son: 25% of carrier daughters with normal vision: 25% normal son
What is color blindness?The condition is frequently inherited. Certain eye diseases and medications are also possible causes. Men are more affected than women.
Color blindness is characterized by the inability to distinguish between red and green shades.
A colorblind man's genotype is XcY, and a heterozygous carrier female's genotype is XcX. A cross between XcY and XcX would result in progeny with the following ratio=
Son: 25% colorblind daughter: 25% colorblind son: 25% of carrier daughters with normal vision: 25% normal son.
Thus, the couple is likely to have a son who is half normal and half affected. Similarly, the couple is likely to have 50% normal daughters and 50% colorblind daughters.
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Which organism does a virus infect?
animals
bacteria
plants
fungi
A virus can infect animals, bacteria, plants, and fungi.
A virus can infect a range of organisms, including animals, bacteria, plants, and fungi. Viruses are unique infectious agents that require a host cell to replicate and complete their life cycle. They possess specific mechanisms to infect and hijack the cellular machinery of their host organisms.
In animals, viruses can cause a variety of diseases, ranging from the common cold to more severe conditions such as influenza, HIV/AIDS, and COVID-19. Bacteriophages, a type of virus, infect bacteria and can play a crucial role in regulating bacterial populations in various environments.
Plant viruses can impact agricultural crops, causing diseases that affect crop yield and quality. They can be transmitted through vectors such as insects or through infected seeds.
Fungal viruses, known as mycoviruses, infect fungi and can have diverse effects on their host fungi, including alterations in growth, pathogenicity, and reproduction.
Overall, viruses have evolved to exploit a wide range of organisms, adapting to specific host cells and causing various outcomes depending on the virus-host interaction.
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13C and 14C are isotopes of 12C, which has 6 electrons, 6 protons, and 6 neutrons. What is the arrangement of subatomic particles in 14C?
A.
6 electrons, 7 protons, and 6 neutrons
B.
6 electrons, 7 protons, and 8 neutrons
C.
6 electrons, 6 protons, and 8 neutrons
A forested area contains deer, wolves, blue jays, squirrels, and many plant species including the staple diet of the deer. Alfalfa. During
the construction of a mall nearby, humans have changed the flow of water in the area, drying up a stream that feeds the major patches of
Alfalfa. What will likely happen in this environment?
1. The deer population will shrink
II. The wolf population will shrink
III. The blue jay population will increase
IV. The squirrel population will migrate to a new location
A. I, II and IV
B. Just IV
C. I and III
D. I and II
Answer:
The Answer tothe questioN should be D
Explanation:
its is D because if the deer decrease that affects the wolves as well because its their food source. One affects the other
As per the given scenario, deer population will shrink as well as wolf population will shrink. The correct option is D.
What is competition?Competition is most commonly determined by the interaction of individuals competing for a small quantity of a shared resource.
It can also be characterized more broadly as the indirect or direct interactions of organisms that results in a change in fitness when the organisms share the same resource.
When members of multiple species start competing for the same resource, this is known as interspecific competition.
Woodpeckers and squirrels frequently end up competing for nesting rights in the very same holes and spaces in trees, while African savanna lions and cheetahs compete for the same antelope and gazelle prey.
As in the given case, the water supply is being limited by the humans, it will most likely to cause the competition for the resource. It will lead to shrinkage of deer population along with wolf population.
Thus, the correct option is D.
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In DNA replication, continuously synthesis occurs on the leading strand
Answer:
I think the answer is A. toward the origin of replication.
Explanation:
I hope this helps! Correct me if I am wrong.
In DNA replication, continuous synthesis occurs on the leading strand toward the origin of replication. Therefore option A is correct.
In DNA replication, continuous synthesis occurs on the leading strand, which is the template strand that runs in the 3' to 5' direction.
DNA polymerase synthesizes the leading strand in the 5' to 3' direction, moving toward the replication fork's origin. The replication fork is the point where the DNA strands are unwound and replication begins.
As the replication fork opens, DNA polymerase adds nucleotides in the direction of the origin of replication, continuously elongating the leading strand.
The lagging strand, on the other hand, is synthesized discontinuously in the opposite direction, creating Okazaki fragments, which are later joined together by DNA ligase.
Therefore option A is correct.
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Your question is incomplete, but most probably your full question was,
In DNA replication, continuously synthesis occurs on the leading strand Multiple choice question.
A. toward the origin of replication.
B. without RNA primers.
C. In the 5' to 3' direction.
D. Creates Okazaki fragments.
As of January 1, 2010 what is a legal requirement for a person born on or after january 1, 1988 to operate a vessel powered by a motor of 10 horsepower or greater in Florida waters
Florida law requirements are as follow.
What are the Florida law requirements?Florida law requires a person born on or after January 1, 1988, to use a vessel powered by a motor of 10 horsepower or more prominent on Florida waters to meet the following:
Successful realisation of an approved boating safety course.Possession of a Boating Safety Education Identification Card issued by the FWC.Thus, a legal requirement for an individual born on or after January 1, 1988, to use a container powered by a motor of 10 horsepower or more wonderful on Florida waters is possession of a Boating Safety Education Identification Card issued by the Florida Fish and Wildlife Conservation Commission (FWC) after the triumphant completion of an approved boating safety course.Learn more about the Florida Fish and Wildlife Conservation Commission at
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Which sentence best explains how a river forms
A. Water from rain, spring, or melting ice Runs along earths surface
B. Water covers a large area of land for most of the year
C.water from rain, springs, or melting ice fills large depressions
D. Water sinks into the ground through a crack in earths surface
The sentence that best explains how a river form is a water from rain, springs, or melting ice that fills large depressions. Thus, the correct option is C.
What is River?A river may be defined as a gathering of water that naturally flows across the earth's surface, usually freshwater, drifting towards an ocean, sea, lake or another river.
A source point of water flow is known as headwater. It can come along with rain, spring, melting of ice, etc from mountains and reaches the ground area in a definite path that fills in the large depressions.
Therefore, the correct option is C.
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please put the answer letter by the number :)
Answer:
1 - e
2 - c
3 - a
4 - d
5 - b
Explanation:
Match the structural formula to the chemical formula for this substance
Answer:
D.) HOCOOH
Explanation:
Structural formulas identify where the atoms/bonds within a molecule are located. Therefore, the atoms need to be listed in order of appearance (left to right). This makes the best answer D.) HOCOOH.
What geological change and event occurs at a convergent boundary?
Plates collide, and a mountain is formed.
Plates collide, and a rift valley is formed.
Plates move apart, and a trench is formed.
Plates move apart, and a volcano is formed.
Answer:
Plates collide, and a mountain is formed
Explanation:
if plates are of equal densites when they collide they will push up and create a mountain chain
A movement that keeps the distal end of the body segment fixed in one location describes what type of kinetic chain moveme
Answer:
Closed Chain
Explanation:
A closed chain refers to a position where the most distal aspects of a given extremity are fixed to the earth or another solid object. This fixed position alters the movement of the joints and surrounding musculature up the chain.
In experiments intended to measure conformity it was found that
In experiments designed to measure compliance, observed participants were found to tend to obey authorities, even if their orders contradict individual common sense.
What does the Milgram experiment say?The Milgram Experiment (or Milgram Experiment) was a scientific experiment developed by psychologist Stanley Milgram. The experiment aimed to answer the question of how observed participants tend to obey authorities, even if their orders contradict individual common sense.
With this information, we can conclude that Milgram wanted to investigate what circumstances led men to commit barbarism and observe how far they would be able to go if there was a superior responsible for their actions or if he gave them instructions to violate integrity and infer pain to the other.
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Suppose, there are two identical planets just like Earth. On planet P, only exhaustible fuels are used while on planet Q only inexhaustible fuels are used. Which among the two planets will have no issues of global warming and pollution?
(A) Planet P
(B) Planet Q
(C) Both planet will face these problems
(D) Cannot say
