Answer: B. Earth's atmosphere
Explanation: You may think that it's the magnetic field because it talks about harmful UV rays. The field doesn't stop them. It only stops solar wind. The atmosphere scatters the UV rays to protect us. It also burns up meteors that attempt to hit Earth.
[ B. Earths atmosphere. ]
The atmosphere regulates the temperatures on Earth and protects it from harmful UV rays and meteors. In the stratosphere, it is heated by the ultraviolet radiation of the sun. If it weren't for the stratosphere, the rays from the sun would be deadly. In the troposphere, all of Earths weather occurs in it. The air in the troposphere is the densest as it contains 3/4 of all mass in the entire atmosphere.
Best of Luck!
Which of the following gases is NOT a significant component of
the planet's atmosphere?
a Oxygen
b Nitrogen
C Neon
d None of the above
Option C. Neon is the gas among the options provided that is not a significant component of Earth's atmosphere, unlike Nitrogen and Oxygen, which are the two most abundant gases.
The gas that is not a significant component of the Earth's atmosphere among the choices provided is Neon (c). While Nitrogen and Oxygen are the two most abundant gases in the atmosphere, Neon is considered a minor component. Nitrogen makes up approximately 78.1% of the atmosphere, and Oxygen is about 21%. In contrast, Neon is much less abundant.
Regarding the other questions mentioned, Oxygen (d) is not considered a significant contributor to global warming as opposed to Carbon dioxide, Methane, and Nitric oxide. In terms of human body composition, Hydrogen is one of the most abundant elements. Moreover, among the compounds listed, Water vapor (H₂O), Carbon dioxide (CO₂), and Chlorofluorocarbons (CFCs) are known greenhouse gases.
Why do organisms make different proteins?
I NEED THE ANSWER ASAP
Q: Why do organisms make different proteins?
You need the answer ASAP, huh? Don't worry, friend. I gotchu.
Proteins are important working molecules, or "building blocks", in all cells. They are produced in a two-step process in all organisms. DNA gets transcribed into RNA, then RNA is made into protein.
Now to get to your question, organisms make different proteins because cells come in all different shapes and sizes. Different types of cells make different types of proteins based on the jobs they have to do.
Hope this helped you out!
-Namira
All organisms have one or more chromosomes in which different fragments of DNA called genes are used to encode different proteins.
Chromosomes are linear double-helix DNA molecules consisting of two long chains of nucleotides held together by hydrogen bonds.During gene transcription, specific fragments of a chromosome called genes are used as templates to create complementary RNAs called messenger RNAs (mRNAs).Subsequently, these mRNAs are then used as templates to synthesize different proteins in the ribosomes by a process called translation. Each mRNA contains a unique linear sequence of triplets of nucleotides or codons that specify different amino acids during translation, thereby synthesizing different proteins from distinct genes.In conclusion, organisms have one or more chromosomes in which different fragments of DNA called genes are used to encode different proteins.
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Which of the statements is true
A. A hypothesis is supported by perdictions, not tested
B. A hypothesis is considered false until proven true.
C. A theory is so strong that it can never change.
D. A theory is supported by many experiments
What is the significance of plasmids to bacteria?
A) They allow bacteria to move in the habitat.
B)They allow bacteria to attach to a host cell.
C)They allow bacteria to adapt to conditions.
D)They allow bacteria to reproduce and grow.
Answer:
Explanation:
They allow bacteria to adapt in condition
Answer:
C) They allow bacteria to adapt to conditions.
Explanation:
This is because plasmids, which are small, double-stranded, and circular, are in fact what we call extra-chromosomal DNA. A) is false because plasmids play no role in allowing bacteria to move. B) is false because plasmids are not what allow bacteria to attach to host cells. C) is true because this is indeed the role of plasmids, which can contain genes for antibiotic resistance. D) is false because while it is true that without DNA, the bacteria cannot reproduce, then grow, whether by binary fission, conjugation, or transformation, the plasmids are not necessary for this, as they are extra-chromosomal. The chromosomal ones are, instead.
Answer the question. Show all your work.
3. In guinea pigs, black (B) is dominant to white (b). If a homozygous black is mated with a white guinea pig, predict the genotypic and phenotypic ratios for the F1 and F2 generations.
Answer:
F1- 100% Bb and 100% black guinea pigs
F2- 50% Bb, 25% BB, 25% bb or 75% black guinea pigs and 25% white guinea pig
Crossing a homozygous black guinea pig (BB) with a white guinea pig (bb) results in all F1 offspring being heterozygous black (Bb). The F2 generation from crossing two Bb individuals will have a genotypic ratio of 1 BB to 2 Bb to 1 bb and a phenotypic ratio of 3 black to 1 white.
When a homozygous black guinea pig with the genotype BB is mated with a white guinea pig with the genotype bb, the F1 generation will comprise entirely of Bb offspring because each parent contributes one allele to their offspring. Since black (B) is dominant to white (b), all F1 offspring will have a black phenotype.
In the F2 generation resulting from a cross between two Bb heterozygotes, we can use a Punnett square to predict the genotypic and phenotypic ratios. The Punnett square for this cross is Bb x Bb. You will find that genotypically there will be a 1:2:1 ratio (1 BB : 2 Bb : 1 bb), and phenotypically there will be a 3:1 ratio, with approximately 75% of the offspring displaying the black phenotype and 25% the white phenotype.
In 1883, a catastrophic event caused climate change, a massive tidal wave, and violently red sunsets. Which event below would be the most likely to have caused the listed effects in 1883?
A. a volcanic eruption
B. a typhoon
C. a hurricane
D. an earthquake
For a codominant trait, do the offspring of identical parents always look like the parents? Explain your answer.
pls help
Answer:
Sometimes, but it depends, some of the offspring can look different because of other relatives. For example: An offspring has green eyes but the parents don’t have any green eyes, but the uncle does, so sometimes the offspring inherits from other family members like the alien before.
Sorry if i am 2 days behind.
No, the offspring of identical parents will not always look like the parents if the trait in question is codominant. Instead, they will exhibit a combination of the traits from both parents.
Explanation:A codominant trait is a trait where both alleles are fully expressed in the phenotype of a heterozygous individual. In other words, the traits displayed by the offspring will show characteristics of both parents. This means that the offspring of identical parents will not always look like the parents if the trait in question is codominant. Instead, they will exhibit a combination of the traits from both parents.
For example, in the case of blood type, if both parents have type A blood, their offspring could have type A blood or type B blood, depending on the genotype of each parent. The child could be heterozygous with an A allele from one parent and a B allele from the other, resulting in AB blood type, which is codominant.
Therefore, for codominant traits, the offspring of identical parents will not always look like the parents, but rather exhibit a blend or combination of the traits from both parents.
Check the items you included in your response.
A caterpillar eats from a tree, and then is eaten by a bird. The bird is eaten by an owl.
A rabbit eats grass and is eaten by a fox. A flea eats off of the fox.
A caterpillar eats grass and is then eaten by a mouse. The mouse dies and is decomposed by mushrooms.
A caterpillar eats grass and is then eaten by a mouse. A hawk eats the mouse, then dies and is decomposed by mushrooms.
Answer:
this depends on what you put in your answer before that is how you determine the answer to this "question"
Explanation:
Answer:
All of them
Explanation:
at what phase of cell division or cell do the nuclear and cytoplasmic contents duplicate?
Answer:The cell cycle has two major phases: interphase and the mitotic phase. During interphase, the cell grows and DNA is replicated. During the mitotic phase, the replicated DNA and cytoplasmic contents are separated and the cell divides.
Explanation:
What is the primary source of nitrogen and phosphorus for a secondary consumer? *
Answer:
Remains of living organisms
Explanation:
Secondary consumers get their nitrogen and phosphorus from the remains (decayed bodies) of living organisms.
When plants and animals die and decay, microorganisms feed on their dead bodies, the activities of microorganisms (such as bacteria) on the remains of living organisms leads to the production of nitrogen and phosphorus for secondary consumers.
Therefore, the source of nitrogen and phosphorus for secondary producers is the remains of living things(e.g plants and animals).
Which correctly distinguishes between a pine tree and an apple tree?
The pine tree bears flowers, the apple tree does not have any flowers,
The pine tree has unprotected seeds, the apple tree has seeds in fruit.
The pine tree is vascular, the apple tree is a seedless, nonvascular plant.
The pine tree thrives in warm climates, the apple tree thrives in cold climates,
Which organism would be classified as an introduced species?
A.an organism that occurred naturally in an area
B. An organism that evolved recently
C. An organism that was bright to an area by humans many centuries ago
D. An organism that used to be endangered but whose numbers recently increased
Answer:
C. An organism that was brought to an area by humans many centuries ago
Answer: C, an organism that was brought to an area by humans many centuries ago
pls mark brainiest ❤
How do organisms in a food web interact?
Read the following passage. Click on the incorrectly used words and type the correct words to replace them.
Estuaries and wetlands support important ecosystems and can also protect surrounding areas from foods and tidal storm surges. When flooding does occur,
estuaries and wetlands soak up excess pollution and then niter the water through sand and other sediments into the groundwater or river system. They also
control erosion with water that holds soll in place. Following a food, the plant matter from wetlands feeds many species further down the river
system. Estuaries contain species that are tolerant to changes in the amount of salt in the water. Tidal wetlands form downstream from estuaries and are
considered nurseries for birds, fish, and shellfish.
Estuaries are biomes where fresh water meets the ocean, creating a diluted saltwater environment. These areas provide habitats for various species and are influenced by salinity. Wetlands are water-saturated environments that contribute to water filtration and protect coastal lands.
Explanation:Estuaries are biomes where fresh water meets the ocean, resulting in a diluted saltwater mixture. These areas provide habitats for the offspring of crustaceans, mollusks, and fish and are influenced by salinity, which is based on the flow rate of freshwater sources. The mixing of fresh and salt water in estuaries creates challenges for plants and animals, but some are able to adapt to these conditions by tolerating salty conditions or removing salt from their roots. Wetlands, on the other hand, are environments saturated with water that help filter it and protect coastal lands from storms and floods. They consist of different types, including marshes, swamps, bogs, mudflats, and salt marshes. Wetlands are characterized by their hydrology, hydrophytic vegetation, and hydric soils.
In the equation below, identify which side has more entropy and why.
CaCO3→CaO+CO2
Answer:Product side
Explanation:
The number of molecules is increasing
HELP PLEASE. If coal production remained constant, coal consumption______
A: Increased
B: Stayed the same
C: Fluctuated
D: Decreased
Not a multiple choice question. Please help! 20 Points!
Answer: your answer is B.) stayed the same
Explanation:
plz mark brainliest
Answer:
temporary fix come and take a sip oh yeah e ye if you can't relate to me we gon all get through this hhhhh oh yeah yeah tell me something I don't know show me something nice to my mark she say I should get out more answer is b
onion contain cells just like humans do true or false
Answer:
True
Explanation:
All living things contain cells. Both humans and onions are living things.
Answer:
True
Explanation:
All living things contain cells, even plants like onions. Interestingly, we share many of the same cells with onions.
what about water gives it all the special properties?
Water's special properties arise primarily from its molecular structure and the hydrogen bonding between its molecules.
Polarity: Water molecules are polar, meaning they have a partial positive charge on the hydrogen atoms and a partial negative charge on the oxygen atom. This polarity allows water molecules to form hydrogen bonds with each other and with other polar substances.
Hydrogen Bonding: The hydrogen bonds between water molecules are responsible for many of water's unique properties. Each water molecule can form up to four hydrogen bonds with neighboring molecules, creating a strong cohesive force.
Cohesion and Adhesion: Cohesion refers to water molecules sticking to each other, which is due to hydrogen bonding. This results in high surface tension, allowing insects to walk on water and water droplets to form. Adhesion is the tendency of water molecules to stick to other substances, which helps water climb up plant roots and stems in a process called capillary action.
Does anyone in the third generation have cystic fibrosis
yes people in the third generation have cystic fibrosis .
What is cystic fibrosis?
"Cystic fibrosis is an inherited disease characterized by the buildup of thick, sticky mucus that can damage many of the body's organs".
What is probability for third generation to have cystic fibrosis?
People with only one copy of the defective CF gene are called carriers, but they do not have the disease. Each time two CF carriers have a child, the chances are: 25 percent (1 in 4) the child will have CF.
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About one quarter of drugs prescribed in the U.S. comes from
A. plants
B. protists
C.animals
D.fungi
Which of the following accurately describes a cause for a change in blood flow?
Answer:
a clot would
Explanation:
I dont know the options
Answer:
The walls of blood vessels lose elasticity causing resistance which increases blood pressure.
Explanation:
Please, someone, help me!
Answer: There is a download application/pdf and no picture
Explanation:
What is the source of Earth's magnetic field?
A) Earth's orbital motion
B) Liquid iron moving within Earth
C) Charged particles from the
Sun
D) Friction between ocean waves and land
Answer: here`s your answer
Explanation: the movement of iron and nickle in the earths outer core creates the magnetic field
i hope you like my answer
Imagine a patient came into your medical practice. What are symptoms that, collectively, would indicate a possible respiratory problem? Describe at least three symptoms, and include at least one objective measure and one subjective measure.
(For Anatomy, please help!!)
Symptoms indicating a potential respiratory problem may involve shortness of breath, chest pain, and persistent coughing. Shortness of breath allows for an objective measure, while chest pain is a subjective measure reported by the patient.
Explanation:A patient exhibiting symptoms indicative of a potential respiratory problem might demonstrate several key signs. Three of these could include shortness of breath (an objective measure that can be observed and quantified), chest pain (a subjective measure reported by the patient), and persistent coughing. A healthcare provider can assess the severity of shortness of breath by asking the patient to perform simple physical tasks, such as walking a set distance, and observing their responses. Chest pain associated with respiratory issues often has a distinctive character; it may be sharp and worsen with deep inhales. Persistent coughing, especially if it produces unusual sputum or occurs over a longer period, could also signal respiratory trouble.
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Which processes occur in a plant embryo before it pushes out of the soil
What is it that determines whether or not a tossed coin will land on heads
Answer:
The three-way is a determiner.
Explanation: there is a 75% chance to get heads or tails, rather than 50% if it was tossed once or twice
Which of the following is a limitation of using a model to study a natural event?
A.
The results of a model event are often much more accurate than those of the actual event.
The model and the results it generates will have no relation at all to the actual event.
The results of a model event may not be similar enough to the results of the actual event.
D.
The size and design of the model will be too similar to the actual event.
Answer:
The results of a model event may not be similar enough to the results of the actual event.
Explanation:
Final answer:
The limitation of using a model to study a natural event is that it may not replicate the actual event closely enough, leading to erroneous predictions. Models are simplified representations with limited validity but are still essential for making predictions and organizing scientific studies.
Explanation:
One limitation of using a model to study a natural event is that the results of a model event may not be similar enough to the results of the actual event. Models are simplifications of real systems and as such, they cannot completely capture all the nuances and variables present in the actual system. While models can provide predictions quickly, a major disadvantage is that they could make erroneous predictions due to oversimplification or missing parameters.
It's important to understand that models are built around the results of scientific studies and can be used to make predictions about the system under study. However, all models have limited validity, and their reliability can vary. For instance, a physically based model or a computer-based model may have different degrees of accuracy and application because of these limitations.
Despite these limitations, models are essential tools in scientific research. They help to organize results and establish boundaries for studies, although they must be continually tested and compared with real-world observations to ensure their accuracy and relevance.
WILL MARK BRAINLIEST!! 20 POINTS! thank you
Answer:
1. Flower ( Pollination )
2. Leaf ( For photosynthesis to occur )
3. Stem ( Holds the flower/structure )
4. Roots ( To provide nutrients and stability )
Hope this help :)
Have a great day
5INGH
Explanation:
what does this mean about the relationship between an allele’s frequency and it’s likelihood of being dominant ?
When two pea plants with Tt genotypes are cross-bred how many short (tt) plants will there most likely be in the new generation
Answer:
25%
Explanation:
Tt will cross with Tt resulting in 25% TT, 50% Tt, and 25% tt
When two pea plants with Tt genotypes are cross-bred. 25% of short (tt) plants will there most likely be in the new generation.
What do you mean by genotypes?The genotype of an organism is its complete set of genetic material. Genotype can also be used to refer to the alleles or variants an individual carries in a particular gene or genetic location.
A genotype is a scoring of the type of variant present at a given location (i.e., a locus) in the genome. It can be represented by symbols. For example, BB, Bb, bb could be used to represent a given variant in a gene.
The different types of genotypes are- homozygous recessive (pp), homozygous dominant (PP), and heterozygous (Pp). The homozygous dominant and the heterozygous genotypes show the same phenotypes.
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