El origen de las especies, cuya primera edición apareció en 1859, es el libro más conocido de El biólogo británico Charles Darwin. En el libro, Darwin expone su teoría de la evolución:
Afirma que toda la vida en la Tierra tiene un ancestro común. Que la selección natural es el mecanismo principal para la evolución de las especies.El libro está considerado como una de las obras científicas más importantes de la historia. Causó revuelo en el momento de su publicación porque atribuyó la riqueza de la forma de vida en la Tierra a un proceso mecánico más que a una inteligencia sobrenatural. Es cierto que otros habían sugerido previamente que podría haber cosas como la evolución o la selección natural, pero "El origen de las especies" es el primer trabajo que extrae la mayor consecuencia de estos conceptos.
Aprende más acerca de este tema en https://brainly.com/question/16994577.
Kenneth and Catherine Lohmann of the University of North Carolina explored the orientation or direction-finding abilities of loggerhead sea turtle hatchlings under varying magnetic conditions. Hatchlings were placed in a tank of water in a laboratory either in the natural magnetic field of the earth OR in a reversed magnetic field in which north and south were flipped. The researchers then measured the direction that the hatchlings swam. The experiments were carried out in the dark and at night since that is when most newly hatched turtles migrate from their sandy nests into the ocean. The results of the Lohmanns' experiments are most likely to be considered credible if Group of answer choices a great deal of time had been spent collecting hatchlings and running experiments. the experiments were funded by a government grant. the results were published in a peer-reviewed journal. the Lohmanns are famous scientists.
Answer:
the results were published in a peer-reviewed journal.
Explanation:
When the results of any study or a research is published in a well renowned and a peer reviewed journal, then the study is considered to be credible and authentic and is accepted by the intellectual society.
In the context, two young scientists are performing an experiment on the direction finding or the orientation finding abilities of the loggerhead sea turtle which are hatching under the varying magnetic fields.
The finding of these experiment or the result will be considered credible only when the results of the experiment will be published in a peer reviewed journal.
Gina is studying a cell under a powerful microscope. The cell does not contain membrane-bound organelles.
Which cell is Gina most likely studying?
The cell that Gina is studying under the powerful microscope does not contain membrane-bound organelles. Hence, it is most likely a prokaryotic cell.
Prokaryotic cells differ from their eukaryotic counterparts in that:
they lack nucleusthey are smaller in sizethey lack membrane-bound organelles such as mitochondrion, chloroplast, etc.Prokaryotic cells lack nucleus and as a result, their genetic materials lie freely within the cytoplasm. They are also smaller in size when compared to eukaryotic cells with the former's size ranging from 0.1 to 5 micrometers and the latter ranging from 10 to 100 micrometers. Specialized organelles such as mitochondrion and chloroplasts are lacking in prokaryotic cells due to their primitive nature.
Therefore, once a cell is known to lack membrane-bound organelle, it will most likely be a prokaryotic cell.
More on prokaryotic cell can be found here: https://brainly.com/question/7153285
What is the standard deviation of a group of individuals' BMIs (round to 2 decimal places)? Their BMIs are 20.58, 22.00, 23.42, 23.47, 25.68, and 33.1.
**25 POINTS **
the diagram shows a shell fossil, which type of fossil is shown ?
i picked one but im not sure , pls hurry i have a time limit and i need help
Answer:
mold is right answer go for it quickly
Answer:
A. Mold
Explanation:
Molds preserve a three-dimensional impression of remains buried in sediment.
What is a scientific explanation for evolution
Answer:
the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.
Explanation:
What is the main difference between a taxon and a clade?
Answer:
A Taxon is a rank or group in a biological classification into which taxonomists classify related organisms. A clade is a group of organisms that are monophyletic and is composed of a common ancestor and all its lineal Descendants
Explanation:
The other guy didn't add a Copy and Paste thing, so here.
is scientific inquiry the same as the scientific method
Answer:
Scientific inquiry is different from the scientific method.
Explanation:
The scientific method follows a linear step-by-step process in order to answer a question, while scientific inquiry does not follow a linear step-by-step process. Scientific inquiry helps you think outside the box to understand the natural world.
Suzanne has a cat and uses a pet carrier to take her cat to the veterinarian. After a few years, the cat runs away
and hides every time Suzanne gets the carrier out
Which best describes the cat's behavior?
instinct
O reflex
O conditioned
O imprinting
Save and Exit
Mark this and return
Next
Submit
Answer: Conditioned
Explanation:
the cat realizes that the carrier will cause her pain so her brain will associate pain with carrier and then will be scared of it
Which of the following newborns has the lowest chance of having health problems?
A. Rosalind- 6 lbs
B. Charles- 11 lbs
C. Nikola- 7.5 lbs
D. Marie- 5 lbs
Answer:
C Nikola
Explanation:
7.5 ibs is the most average and ideal weight for newborns.
Rosalind is the newborn who the lowest chance of having health problems. Thus, the correct option is A.
What are health problems?Health problems may be defined as a situation of disease or medical ailment or an environmental condition that poses the threat of disease or medical ailment practically.
Rosalind weighs 6lbs which is equal to 2.72 kilograms. The most ideal and normal weight of newborns should be ranging in between 2.5 to 3 kilograms.
Therefore, Rosalind is the newborn who the lowest chance of having health problems. Thus, the correct option is A.
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The pun nett square is for a test cross of two mice That were purebred
Hitchhikers thumb (H) is dominant to no hitchhikers thumb (h). A woman who does not have hitchhiker some marries a man who is Carretera genus for hitchhikers thumb. What is the probable genotypic of their children?
Complete question:
3. Hitchhiker’s thumb (H) is dominant to no hitchhiker’s thumb (h). A woman who does not have hitchhiker’s thumb marries a man who is heterozygous for hitchhiker’s thumb. What is the probable genotypic ratio of their children? What is the probable genotypic of their children?
Answer and Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
can someone help me?
Answer:
I believe it's A, commencualism.
Explanation:
Because it means that one type of animal pairs itself with another to provide a service or perk, while the other maybe offers protection or something similar, improving the species.
I hope it's correct tho, sorry if it's not. ♥
3. What is spontaneous generation? a. the idea that microorganisms have the ability to sterilize lie b. the idea that microorganisms need intense heat to reproduc c. the idea that substances produce germs only when microon d. the idea that substances can produce germs on their own
Answer:
The correct answer is - d. the idea that substances can produce germs on their own.
Explanation:
Spontaneous generation is an obsolete theory or idea that supports the production of living things and substances from non-living substances and things.
This purpose is that the living creatures could arise from nonliving matter. In microbiology, it is an idea that says that substances can produce germs on their own even if the substances are not similar.
Try to find out why (what the root word is and where it comes from), and report your findings here. Why do you think the root word is contained in all these words?
prokaryote:
eukaryote:
karyotype:
Are the structures that unicellular and multicellular beings have developed to perform nutrition the same or different? Why?
Explanation:
Cells function differently in unicellular and multicellular organisms, but in every organism, each cell has specialized cell structures, or organelles, of which there are many. These organelles are responsible for a variety of cellular functions, such as obtaining nutrients, producing energy, and making proteins.
hope this helps you
have a nice day:)
Please help me answer this. Thank you ♡´･ᴗ･`♡
Answer:
i need help too
Explanation:
i need it today
Answer:
1. 23.5 degrees
2. 24 hours
3. 365 days
10. Earth's axis is tilted
Explanation: those are the only ones I know good luck :D!
The fluid inside the mitochondria is called the _______________.
The fluid inside the mitochondria is called the matrix.
Answer:
Matrix
Explanation:
It is called Matrix
I have an atomic mass of 20 and I’m a gas what am i?
Answer:
Neon
Explanation:
Neon has atomic number of 10 and atomic mass 20.
Advocates for organic farming claim that their methods result in a number of benefits to farmers, consumers, and the environment. Scientists now plan to study the claims that organic farming advocates make by developing testable hypotheses about the economic and environmental benefits of growing organic foods. The scientists plan to collect data from farmers and other producers. Which hypothesis should the scientists use
Answer:
''Organic farming reduces the cost of farming that benefits the farmers economically and also better the environment.''
Explanation:
The hypothesis i.e. ''Organic farming reduces the cost of farming that benefits the farmers economically and also better the environment.'' This hypothesis can be tested by the scientists by taking two fields in different location having same environmental conditions. One field they apply conventional farming whereas other field apply only organic materials and no chemicals. We can see that the cost on expensive fertilizers, pesticides and weedicides can't used in organic farming so it is economically benefitted to the farmers as well as no pollution occurs which happens due to the use of chemicals. Moreover, the price of organic food is 3 times higher due to its non-hazardous nature.
Which is a function of the cell structure that is labeled X
Answer:
the function of cell structure that is x is that it provides support.
Answer: C) it provides support
Why people get cholera in our community
Answer:
Search Results
Featured snippet from the web
A person can get cholera by drinking water or eating food contaminated with cholera bacteria. In an epidemic, the source of the contamination is usually the feces of an infected person that contaminates water or food. The disease can spread rapidly in areas with inadequate treatment of sewage and drinking water.
Explanation:
The mode of transmission of Cholera is through fecal contamination of food or water. Transmission is therefore closely associated to poor environmental management due water and sanitation issues
Which of the following best describes the difference between a cation and an anion?
Answer:
An anion is a negatively charged ion that has gained more electrons than protons and added them to it's energy levels. A cation is a positively charged ion that has lost electrons from it's energy levels. It also has more protons than neutrons.
Explanation:
Some scientists contend that many species of dinosaur had a metabolism more like a warm-blooded mammal's than a cold-blooded reptile's. that many species of dinosaur had a metabolism more like that the metabolism of many dinosaur species were more like that the metabolisms of many species of dinosaurs were more like those of there were many species of dinosaurs that had metabolisms more like those of there were many dinosaur species that had a metabolism more like that of
Answer: that many species of dinosaur had a metabolism more like
Explanation:
From the question given, the correct use of tense occured in option A "that many species of dinosaur had a metabolism more like".
In option B, a wrong verb was used in this case. The wrong verb was "were" It should also be noted that the use of "that" and "than those" for options C, D and E aren't necessary.
Therefore, the correct option is A.
Please help me with this *picture included
Explanation:
sorry but the picture is not clear plus its kind of blankHow are ions transported around the plant
PLEASE HELP Calculate the volume of the block using the formula
Answer:
21.553125
Explanation:
You can round to whatever you feel, but this is the answer when you multiply 2.75 x 2.75 x 2.85
:D
Que porcentaje de la energía disponible en un nivel trafico puede ser transferido al siguiente nivel trafico
Answer:
Aproximadamente 10 centesimo.
Explanation:
En cada trófico nivel solo a pequeño proporción de energía (aproximadamente 10 centesimo) es trasladado a el siquente a nivel.
Pardon my spanish im not fluent. sorry
Which is a part of interphase?
A. Prophase
B. Telophase
C. G, phase
D. Cytokinesis
Answer:
G phase
Explanation:
Prophase, Telophase are part of Mitosis.
Cytokinesis is the last phase of cell cycle.
Answer:
G phase
Explanation:
The statements on the left are incorrect
Write the correct statement.
Incorrect statements
1. Breathing produces carbon
dioxide from glucose
2. Only animals carry out
respiration. If someone can help with this it’d be greatly appreciated
Answer:
Carbon dioxide creates oxygen so we can breathe and seperates it from glucose
All species and humans breathe fish have gills to breathe underwater so not just animals have respiration.
Explanation:
Which is a part of interphase?
A. Telophase
B. Cytokinesis
C. Prophase
D. G, phase
Answer:
D. G1 phaseExplanation:
Interphase is a stage of the cell cycle that occurs between the G1, S, and G2 phases. The first gap phase is also known as the G1 phase. During this phase, the cell expands in size. It duplicates cell organelles and synthesizes molecular components necessary for mitotic division's later stages.
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