es la A
Hace aproximadamente 250 millones de años ocurrió la extinción masiva del Pérmico-Triásico, un evento en el cual murieron hasta el 96 por ciento de las especies marinas y un porcentaje similar de las terrestres. Cerca de tres millones de años después se produjo la separación, a partir de un ancestro en común, de los linajes que con el tiempo darían origen a las aves y los cocodrilos. El grupo que incluye tanto a cocodrilos como aves se lo denomina Archosauria, que significa ‘reptiles dominantes’.
espero y te ayude
determining the order of events and the relative age of rocks by examining the position of rocks in a sequence is called___.
A) absolute dating
B) radiometric dating
C) relative dating
D) radiocarbon dating
Answer:
C) relative dating
The directions for making a protein
a. result in DNA.
b. are carried by DNA.
c. result in amino acids.
d. are carried by amino acids.
The directions for making a protein are carried by DNA. Option B.
How proteins are madeGenes are usually expressed in form of proteins and proteins are sequences of different amino acids. The amino acids are synthesized from genetic codes present in mRNA. mRNA is synthesized during transcription from DNA templates.
In other words, the sequence of amino acids in proteins is dictated by the sequence of nucleotides on mRNA. Whereas, the sequence of nucleotides on mRNA is dictated by the sequence of nucleotides on the coding strand of DNA that serves as the templates for the synthesis of the mRNA.
In summary, DNA is indirectly responsible for the sequence of amino acids present in proteins.
More on protein synthesis can be found here: https://brainly.com/question/16305501
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A lipid is composed of a glycerol molecule and how many fatty acid chains?
Please help me. The question is “ Which Tube will experience the greatest loss of water? Claim: Tube #___ will have the greatest amount of water loss. the options are Tube 1, Tube 2 & Tube 3.
The second section of the question is. Reasoning and evidence: Tube ___ will have the greatest amount of water loss because ___________ (give evidence from date above and explain it). (Hint:Osmosis).
I will give brainliest to whoever helps me answer this question.
Answer:
It is Tube 3
Explanation:
This is because the beaker has a lower water potential then the others. Since the dialysis tube holds 100% water and the beaker holds 40% of water, water will move out of the bag to the beaker. Because of the low water potential on the beaker
plz help me on science due today
Answer:
A
Explanation:
Wind is caused by inequal heating. As you should have learned, things expand when they get hot and contract when they get cold. So, the high pressure hot air flows into the low pressure cold air via wind.
When you are rating evidence by its value, weigh the benefits of one good fingerprint versus hair and fiber evidence. Fully explain your answer
Answer: Conviction based on the support of the physical fingerprint is a more reliable evidence over hair and fiber evidences.
Explanation:
Physical fingerprint has more value than hair and fiber evidences. As no two fingers can have exactly alike fingerprints belonging to the same person. The fingerprints of two identical twins cannot be alike but DNA evidence obtained from hair, fiber, or any other biological evidences can show similarity. Thus physical fingerprint have more value over DNA fingerprint it can directly related to a suspect to whom it belongs to depending upon the uniqueness of the minutiae characteristics.
(PLEASE HELP!! AND NO LINKS OR I WILL REPOT YOU!) True or False: Organisms evolve because they desire to be more fit for their environment in order to survive.
A population ecologist wished to determine the size of a population of white-footed deer mice, Peromyscus leucopus, in a 1-hectare field. Her first trapping yielded 80 mice, all of which were marked with a dab of purple hair dye on the back of the neck. Two weeks later, the trapping was repeated. This time 75 mice were trapped, out of which 48 of the mice were marked. Using the formula below, what is the population of mice in the field
Answer: 125
Explanation:
Population size is the number of individuals in a population. First, the trapping yielded 80 mice that were marked. Two weeks later, 75 mice were trapped and 48 of them had the mark.
The formula used for this question is:
N=mn/x
N= population size in the 1-hectare field. m= number of individuals marked and released the first time. n= number of individuals captured the second time. x= number of marked individuals that are recaptured.
The experiment consist on a randome collect sample of individuals which are then marked and released. Next, take a sample again.
So, replacing the values we get:
N=(80)(75)/48
N=125 individuals.
The enzyme pepsin is produced in the cells of the stomach but not in the cells of the small intestine. The small intestine produces a different enzyme, trypsin. The reason that the stomach and small intestine produce different enzymes is that the gene that codes for pepsin is A) in the cells of the stomach, but not in the cells of the small intestine B) mutated in the small intestine C) digested by the trypsin in the small intestine D) expressed in the stomach but not expressed in the small intestine
Answer:
D) Expressed in the stomach, but not in the cells of the small intestine
Explanation:
The stomach and small intestine produce different enzymes is gene codes for pepsin is expressed in the stomach but not expressed in small intestine.
What is the function of trypsin?Trypsin is an enzyme that helps us digest protein. In the small intestine, trypsin breaks down proteins, the process of digestion that formed in the stomach.
Is a proteolytic enzyme produced by the pancreas in an inactive form called trypsinogen.
Thus, option "D" is correct as trypsin is expressed in stomach for protein breakdown.
To learn more about the protein click here:
https://brainly.com/question/17095120
Mediterranean forests, dry woodlands, and shrublands often have plants called sclerophytes living in them. What adaptation do these plants have that help them survive in this biome?
Answer:
he special characteristics that enable plants and animals to be successful in a particular environment are called adaptations. Camouflage, as in a toad's ability to blend in with its surroundings, is a common example of an adaptation. The spines on cycad leaves, keep animals from eating them.
Explanation:
Plants adapt to their environment from necessity. Plants may also adapt by growing lower and closer to the ground to shield themselves from wind and cold. Desert environments may have some of the following adaptations, these help the plant to conserve food, energy and water and still be able to reproduce effectively.
What would you eat for the rest of your life and why
Answer:
I would eat organic food or natural food
Explanation:
Because these type of food does not contain chemicals or are not artificial or are not even genetically modified which can be not good for our health but the organic foods are the best for our health.
How is your body temperature held constant despite different weather temperatures
outside?
Answer:
Core body temperature The body can only stay at a constant temperature if the heat generated is balanced and equal to the heat lost. Although the core temperature must be close to 37°C, fingers and toes can be colder. This is because energy is transferred from the blood as it travels to the fingers and toes.
Answer: When heat activates sweat glands, these glands bring that water, along with the body's salt, to the surface of the skin as sweat. Water evaporating from the skin cools the body, keeping its temperature in a healthy range.
Explanation:
HELP PLEASE I GIVE YOU BRAINLIEST I NEED HELP WITH 2
Answer:
C. makes the most sense so I hope I'm right
Explanation:
If this isn't correct I am so so so sorry!
What do you think the color of the pea plants has to do with genes?
Answer:
According to Mendel Gregor, he analyzed two plants can make a different offspring. It depends on the alleles. I hope this helped!
Explanation:
Answer:
The instructions for making a pea plant are found in its genes. Each gene has the instructions for one small part of the pea plant. There is a gene that determines the color of the peas the plant will produce. These genes can come in all different versions.
Describe digestion in humans
Answer:
A mass of nutrients enters a stomach full of strong, hydrochloric acid. The acid gets rid of all of the waste material, which is then expelled.
Explanation:
Answer:
A mass of nutrients enters a stomach full of strong, hydrochloric acid. The acid gets rid of all of the waste material, which is then expelled.Explanation:
How do biotic and abiotic factors affect the characteristics of an ecosystem
Explanation:
Biotic factors such as the presence of autotrophs or self-nourishing organisms such as plants, and the diversity of consumers also affect an entire ecosystem. Abiotic factors affect the ability of organisms to survive and reproduce. Abiotic limiting factors restrict the growth of populations.
help plss !! really need help
Answer:
am too young
Explanation:
hope it helps
Maps are important tools that help us to..............
Answer:
to find our way
EaSY
Explanation:
Organisms that are members of the family Coccinellidae are heterotrophic, reproduce sexually, and are multicellular. Knowing this, we can be certain they belong to which kingdom? А Animalia B Plantae C Eubacteria D Protista
Answer:
they belong to kingdom (A). Animalia.
Which letter in the image shows the alluvial fan
Answer:
its z
Explanation:
i got it right
How does carbon move from the nonliving (abiotic) environment into the living (biotic) environment?
A.) fossil fuels take carbon dioxide out of the air
B.) plants take carbon dioxide from the air
C.) animals take carbon dioxide from the air
D.) carbon dioxide moves from the air into water
Plz help soon i'll mark brainliest
Answer:
b plants take carbon dioxide from the air
How is antibiotic resistance related to Natural selection?
Answer:
Antibiotic resistance is a consequence of evolution via natural selection. The antibiotic action is an environmental pressure; those bacteria which have a mutation allowing them to survive will live on to reproduce. They will then pass this trait to their offspring, which will be a fully resistant generation.
Explanation:
where is the protein on a DNA?
Answer:
Explanation:
The type of RNA that contains the information for making a protein is called messenger RNA (mRNA) because it carries the information, or message, from the DNA out of the nucleus into the cytoplasm. Translation, the second step in getting from a gene to a protein, takes place in the cytoplasm.
The removal of the predator populations from an ecosystem would most likely result in?
O a decrease in all the prey populations
O an increase in all the producer populations
O an increase in ecosystem biodiversity
O a decrease in ecosystem biodiversity
Answer:
A decrease in all the prey populations.
Answer:
a decrease in all the prey populations
Explanation:
I Watched a video thing
which one is a lie? someone pls answer I need help
Answer:
I'm pretty sure number two is the lie. I'm not 100% sure tho
Compare comets, meteors and steroids
Write a short answer for the question
Answer:
Asteroids are smaller than a planet, but they are larger than, A meteor is what happens when a small piece of an asteroid or comet burns up upon entering Earth's atmosphere.
Which ocean is warmest because most of it lies in the tropics?
Question 5 options:
Atlantic
Artic
Indian
Pacific
Southern
Answer:
southern is warmest .
Explanation:
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Watch the seven minute video on the "Mystery of the Buffalo boom" on you tube. Write a reflection on how scientists used their reasoning skills to make a claim about causes of the "buffalo boom".
Answer:
In the "Mystery of the Buffalo boom" scientists first try to find the answer in the two most common things that can affect a population of animals. Food and predators.
First, they studied the buffalos' food supply, grass. They found that there has not been an increase in it so that the number of buffalos multiplied.
Then they studied the predator's population, and they found that there was not a decrease in the number of them that could affect the buffalos increasing numbers.
As the two main things that controlled a population were not affected, they had to find other causes. The next thing that they studied were historical facts about buffalos and diseases. Scientists discovered that a virus that affected cows had impacted these animals too, which was the cause of a considerable decrease in the buffalo's population many years back.
Due to the drastic impact that the rinderpest had on cows, a vaccination plan was implemented. As the cows now were protected against this virus, the virus could not reproduce as it did, ending the spreading of this disease in cows. As a consequence, the buffalos were no longer infected, and their population grew thanks to the vaccination plan.
In conclusion, when the most common things that can affect a population are not the cause, we have to look into the past and find what has changed and how it impacted the animals. It is using logical thinking skills to determine what has changed and what that change made.
Explanation:
In the video "Mystery of the Buffalo boom" the ecologist Tony Sinclair found an abnormal buffalos' number in Tanzania. As the increase in the buffalos' population was something unusual, he knew that something had changed, but he did not know what. Sinclair, with other scientists, used their reasoning skills and thought that the two most logical things that can affect a population are food and predators. When they studied these two variables, they found out that they were not the problem. The next step was to look for past events that impacted buffalos. They found out that a virus, which directly affected cows but also buffalos, had been erased from the Earth thanks to a vaccination plan. As a result, the disease spreading between cows stopped, and as a consequence, it also stopped between buffalos.
We can see that everything is connected and that by using reasoning skills and logic, scientists could determine what happened.
Which of the following activities is likely to have the highest impact on biodiversity? A. Copper mining in Chile. B. Large-scale deforestation of the Amazon and Congo basin tropical forests. c. Soil erosion on the slopes of the Rocky Mountains. D. Increased use of ethanol fuels in the United States.
Answer:
B
Explanation:
I need help 1 more time How does the Sun manage to maintain an environment in its core that is conducive to nuclear fusion? I'll mark 1 more Brainliest so plz I really need this done before Monday
Answer:
Gravitational equilibrium helps maintain the environment in the Sun's core that is conducive to nuclear fusion. The Sun's gravitational equilibrium balances the gravity pulling inward and the pressure pushing outward. It keeps the Sun's size, denseness, and hotness stable, thus making nuclear fusion possible.
Answer:
Gravitational equilibrium helps maintain the environment in the sun's core that is conducive to nuclear fusion. the sun's gravitational equilibrium balances the gravity pulling innards and the pressure pushing outward . it keeps the sun's size, denseness, and hotness stable, thus making nuclear fusion possible.