The concept of evolution by way of natural selection is a central tenet in biology that has been tested in numerous ways by many scientists. Evolution by way of natural selection is most likely which type of concept?

A. an explanation of phenomena that can be accepted as true because it is supported by repeated observations and experimentation

B. a likelihood based on the chance that a particular event will or will not occur during an experiment

C. a testable explanation or answer to a scientific question based on prior knowledge or research

D. a statement of fact that is accepted as true because it has always been observed to be true through observations and experimentation

Answers

Answer 1

Answer:

I know I am too late to help you, but I couldn't find an answer when looking for this question. I got it right and it is A. an explanation of phenomena that can be accepted as true because it is supported by repeated observations and experimentation.

Explanation:

The Concept Of Evolution By Way Of Natural Selection Is A Central Tenet In Biology That Has Been Tested
Answer 2

Evolution by way of natural selection is most likely an explanation of phenomena that can be accepted as true because it is supported by repeated observations and experimentation. The correct option is A.

What is natural selection?

Natural selection is the process through which organisms that are more adapted to their environment tend to survive and reproduce more than those that are not. Tree frogs, for example, are occasionally eaten by snakes and birds.

Evolution is a process in which living things or other evolve or change over time. Natural selection is also a reason for evolution, which takes a large amount of time.

Therefore, the correct option is A. an explanation of phenomena that can be accepted as true because it is supported by repeated observations and experimentation

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Related Questions

what are the similarities between this activity and actual mitosis

Answers

Mitosis and meiosis both involve duplication of a cell's DNA content. Each strand of DNA, or chromosome, is replicated and remains joined, resulting in two sister chromatids for each chromosome. A common goal of mitosis and meiosis is to split the nucleus and its DNA content between two daughter cells.

The DNA within a cell is duplicated during both meiosis and mitosis. Two sister chromatids are produced for each chromosome as a result of the replication and continued joining of each DNA strand, or chromosome.

What is mitosis?

Mitosis is defined as the cell-division process in which the chromosomes multiply and are equally distributed between the two daughter cells. Prophase, Prometaphase, Metaphase, Anaphase, and Telophase are the five stages that make up mitosis. Meiosis is defined as a process by which a single cell undergoes two divisions, resulting in four cells with half the original genetic material.

Cell division occurs during meiosis as well as mitosis. The M-phase of the cell cycle is where both processes take place. The prophase, metaphase, anaphase, and telophase stages are typical for both cycles. DNA synthesis occurs during both cycles. A common goal of meiosis and mitosis is the division of the nucleus and its DNA into two daughter cells.

Thus, the DNA within a cell is duplicated during both meiosis and mitosis. Two sister chromatids are produced for each chromosome as a result of the replication and continued joining of each DNA strand, or chromosome.

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Your best friend confides that recently she's been having dental problems. You ask her if it's because she eats a lot of sweets and she denies it, reminding you that she's on the cheerleading squad and has to be very careful about her weight. She says she mostly eats salads and snacks on carrot sticks or other raw vegetables. You have noticed that she has lost a lot of weight over the past six months and that her usually shiny hair is dull. You're concerned because you think your friend may: ________

a. have some type of hormonal problem.
b. be abusing drugs.
c. have developed anorexia nervosa.
d. be binge drinking.

Answers

Answer:

c be binge drinking c is the answer

Can someone help me please?

Answers

Answer:

The second arrow (the middle one)

If I'm on an elevator that breaks loose and plummets down the shaft, can I avoid harm by jumping at the last second?

Answers

Answer:

It sounds like it would work but it wont. you need to lay down for the safest

Explanation:

Which of these is a product of anaerobic rrespiration

Answers

The products of anaerobic respiration are lactic acid, carbon dioxide, and water.

A female mouse is trying to decide if she will leave her natal nest to reproduce alone. If she leaves, she will be able to produce 45 offspring whereas she would only have 7 reproductive units if she stayed. But if she stays, she will help her mother produce 175 offspring vs the 85 she could produce without her. Should she stay

Answers

Answer:

142 is the answer whe you add 45 7 and 85

A female mouse is trying to decide if she will leave her natal nest to reproduce alone. She will produce 142 offspring.

What is reproduction?

Reproduction is the production of offspring. There are two main forms: sexual and asexual reproduction. In sexual reproduction, an organism combines the genetic information from each of its parents and is genetically unique.

In asexual reproduction, one parent copies itself to form a genetically identical offspring. Sea turtles are an example of an animal that reproduces sexually, a volvox (green algae) is an example of an organism that reproduces asexually, and a brittle star can reproduce in either way.

Reproduction is the process by which new organisms (offsprings) are produced from organisms of the same kind.

Therefore, A female mouse is trying to decide if she will leave her natal nest to reproduce alone. She will produce 142 offspring.

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How does the mantle differ from Earth’s crust?

Im doing stemscopess HELPPP.

Answers

This layered structure can be compared to that of a boiled egg. The crust, the outermost layer, is rigid and very thin compared with the other two. ... The mantle, which contains more iron, magnesium, and calcium than the crust, is hotter and denser because temperature and pressure inside the Earth increase with depth.

which tarsal bone articulates with the tibia and fibula

Answers

Answer:

the talus bone

Explanation:

hope it helps<3

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as a microbiologist you have been asked to investigate the regulation of a novel gene in a bacterial species. given what is known about bacteria, the logical place to begin your investigation is

Answers

The logical place to begin your investigation is TRANSCRIPTIONAL CONTROL. This field investigates the differential expression of genes.

Transcriptional control refers to the study of how genes are differentially expressed in the genome of cells.

In prokaryotic organisms (e.g., bacteria), genes are expressed in clusters known as operons.

An operon is a group of genes under the control of a single promoter sequence.

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HELPPPPPPPPPPPPPPPPPP
A: equilateral and right
B: equilateral and isosceles
C: isosceles and scalene
D: isosceles and right

Answers

Answer:

D, Isosceles and right

Explanation:

you already know it's right bc of the little 90 degrees box so the only two right answers could be A and D but its not A bc all the sides aren't the same length so its D. Hope this helped! :)

How did mendel prove the law of segregation.

Answers

Mendel proposed the Law of Segregation after observing that pea plants with two different traits produced offspring that all expressed the dominant trait

3) When two atoms bond chemically it is because of the interaction between

A) the nuclei of each atom.

B) the protons in each atoms.

C) all electrons in the atoms.

D) the valence electrons in each atom​

Answers

Answer:

C - All electrons in the atoms

Explanation:

It depends on the bonding for an explanation.

If one atom is a metal and one is a non metal it will be ionic. This is because one atom transfers its electron to the other atom giving them both a charge. They will then be bonded due to opposite forces of attraction.

If both atoms are non metals it will be covalent. Electrons pair together in the center of two atoms that have merged together and they share their electrons.

(Makes more sense with diagrams)

Hope this helps you!

A generalist predator does which of the following

Answers

Answer:

Predators are an important part of a healthy ecosystem. Predators remove vulnerable prey, such as the old, injured, sick, or very young, leaving more food for the survival and success of healthy prey animals. Also, by controlling the size of prey populations, predators help slow down the spread of disease.

Which of the following is(are) NOT (an) output(s) for cellular respiration? Select all that apply.

ATP

solar energy

water

oxygen

carbon dioxide

Answers

Answer:

oxygen te digo por qué ya Ise esa bro

When is passive transport used.

Answers

Answer:

When a molecule moves down its concentration gradient is it participating in passive transport

a cell or nucleus that contains half a set of chromosomes.

Answers

Answer:

the haploid contains half a set of chromosomes

How does lack of water conservation affect the hydrological cycle

Answers

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Human activity such as the burning of fossil fuels has an effect on the overall increase of the Earth's temperature. Raising the Earth's temperature means that there is an increase of evaporation, melting of land and sea ice, and impacts on other processes of the water cycle that adversely affect the climate on Earth.

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30 points!!!!!!!!!
Scientists study anaerobic fermentation in yeast cells incubated at different
temperatures. The amount of carbon dioxide (CO2) detected at each temperature in
two trials is shown in the table above.

Check the 2 products of fermentation below

Ethanol

Pyruvate

Glucose

CO2

H2O

O2

Answers

Answer:

Ethanol CO2

Explanation:

Robert Hooke was the first person to observe cells. He observed these cells in
(a) a piece of cork.
(b) a slice of honeycomb.
(c) human blood.
(d) plaque from his own teeth.

Answers

Robert Hooke was the first person to observe cells. He observed these cells in (a) a piece of cork.

I hope this helps!

Robert Hooke was the first person to observe cells. He observed these cells in a piece of cork. Thus, option A is correct.

What is cell cycle?

Cell cycle is defined as cycle in which cell produces, grows and divides. The cell cycle has mainly three steps the first one is G1 phase in which the size of cell increases, S phase synthesis of DNA takes place and the third step is G2 phase in which cell ready to divide.

Cell is defined as the base of life as it is the structural as well as functional unit of life. Cell is made up of pre existing cells and the cell contain various cell organelles such as mitochondria, endoplasmic reticulum, ribosomes, golgi appratus, nucleus, and cytoplasm.

Basically, cell is of two type one in prokaryotic and another one is eukaryotic. The prokaryotic cell is known as pre mature cells as they do not contain cell organelles and eukaryotic cell are known as advanced and developed cells as they contain several cell organelles.

Therefore, Robert Hooke was the first person to observe cells. He observed these cells in a piece of cork. Thus, option A is correct.

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what causes genetic variation in meiosis?
A. chromosomes lining up
B. separation of chromosomes
C. crossing over chromosomes
D. chromosomes pulling apart​

Answers

Answer:

C. crossing over chromosomes

Explanation:

Process of Meiosis. A man produces sperm and a woman produces eggs because their reproductive cells undergo meiosis.which cause Crossing Over.

[EARTH SCIENCE NOT BIOLOGY]
Hello everyone can y'all help me please? Thanks!

What are the three main types of rock and how do they form? Quick explanation please

Answers

Answer: igneous, sedimentary, and metamorphic.

Explanation: Igneous rocks form when molten rock

Sedimentary rocks form  when particles settle out of water or air, or by precipitation of minerals from water

Metamorphic rocks form under extreme heat or pressure

what organelle of a cell connect the nucleus and cell membrane of the cell?​

Answers

Answer:

Endoplasmic Reticulum

Explanation:

I hope this helps!

Answer:

Endoplasmic Reticulum

Explanation:

have a nice day

If annual rainfall decreases and causes ponds in this habitat to become shallower, after many generations, how might the traits of these water lilies change?.

Answers

The water lilies may adapt to needing less water, both to drink and to live. The flowers will try to adjust to their new habitat by needing less water as there is less available.

The water lilies might adjust to requiring less water overall, even for drinking.

What is adaptation?

According to the idea of evolution, adaptation is the biological mechanism that allows organisms to adjust to new settings or to changes in the environment in which they are already living.

It is absolutely necessary for living things to be able to adapt in order to stay alive. Animals who are unable to adjust to the shifting conditions of their habitat ultimately perish. These alterations are the product of shifts in genetic make-up. The mutant genes are passed down from the animals that make it through the ordeal to the next generation.

Therefore, the water lilies might adjust to requiring less water overall, even for drinking.

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Homeostasis is an organism's ability to _______. a. obtain energy from food b. interact with its specific environment c. maintain a constant internal environment d. survive without water for long periods of time

Answers

Answer:

C. Maintain a constant internal environment

Explanation:

Homeostasis is keeping an internal environment stable.

a group consisting of only the wood, american, cave, and desert cockroaches is a monophyletic group. true or false?

Answers

I think the answer is true

A group consisting of only the wood, american, cave, and desert

cockroaches being a monophyletic group is True.

What is a Monophyletic group?

This is the type of groups which consists of organisms which have a

common ancestor.

The organisms mentioned above are all types of cockroaches which

means they emanated from a common ancestor and makes it valid.

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In the general population, 1 in 300 individuals is a carrier for Tay-Sachs disease, while 1 in 30 individuals of Ashkenazi Jew descent are carriers. Tay-Sachs also affects 1 in 30 individuals with French-Canadian ancestry, although two completely unique mutations are responsible for the Ashkenazi and French-Canadian mutations.
A) What are the chances of two individuals having a child with Tay-Sachs if both individuals are not of Ashkenazi or Franch-Canadian descent?
B) What are the chances of two Individuals having a ¢hild with Tay-Sachs lf one Individual Is of Ashkenazi descent and one ls not?

Answers

No I don’t know this question

In the general population where  1 in 300 individuals is a carrier for Tay-Sachs disease, while 1 in 30 individuals of Ashkenazi Jew descent are carriers. Tay-Sachs also affects 1 in 30 individuals with French-Canadian ancestry then in this condition , 1 in 2 will get the disease that is there is 50% possibility.

What type of disease is discussed in the question ?

It is an autosomal recessive disorder.

The chances where the two two individuals having a child with Tay-Sachs if both individuals are not of Ashkenazi or Franch-Canadian descent is 25 % that is the child will not have any disease.

The chance where  the child inherits a mutated one  from one parent and becomes a carrier, but will not have  the condition themselves. 1 in 4 (25%) chance that means  the child inherits a faulty gene from both parents and develops Tay-Sachs disease.

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Which molecule is needed for photosynthesis to occur?

glucose

oxygen

carbon dioxide

nitrogen

Answers

Glucose is what photosynthesis make

Carbon dioxide is what the trees use for in order for us to breath

Nitrogen theres not a lot left its at 1% or less so the only reasonable answer is

Oxygen

Answer:

The answer is Carbon Dioxide/co2

Explanation:

For a clearer response, carbon dioxide is one of the substances needed for the process of photosynthesis. Oxygen is not essential because that molecule is what is being released. Glucose is the molecule being produced.

Genes which are expressed all the time.

Answers

Genes that are expressed all the time are dominant ones. They can also be seen all the time if it is a genotype(ie. eye color, hair color, etc.)

Which of the following help to break down fats?

Answers

Answer:

c. Bile and lipase

Explanation: is correct

Blood vessel diameter fluctuates between being constricted and being dilated. This is the primary contributor to blood pressure. In order for blood vessels (arterioles) to maintain a steady pressure, there must be a prolonged presence of what ion in the smooth muscle cell's cytosol

Answers

In order for blood vessels to maintain a steady pressure, there must be a prolonged presence of CALCIUM ions in the smooth muscle cell's cytosol. This ion initiates smooth muscle contraction.

Arterioles are blood vessels that have muscular walls consisting of one or two layers of smooth muscle cells.

Calcium (Ca2+) ions start the contraction of the smooth muscle cells by binding to calmodulin protein and thereby activating myosin.

In consequence, Ca2+ ions act as a secondary messenger that activates calmodulin, stimulating the phosphorylation of the myosin light chain and thus triggering muscle contraction.

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But how could she tell when a cat was deaf? How did she know which cats needed love and attention? Regardless of how she did it, Ginny rescued hundreds of cats in her life and set an example we all can follow.What is the main purpose of including the story of Ginny wanting to care for blind or deaf cats? To create awareness of the need to give to animal shelters To explain the owner's role in training Ginny To show that Ginny was aware of cats with special needs. To suggest more attention be given to special-needs pets