Answer:
Option B and D are correct as the Carbon dioxide levels in the Earth’s atmosphere have been steadily increasing and other greenhouse gases amplify the effect of carbon dioxide.
Explanation:
As we all are aware that increasing rate of carbon dioxide is responsible for global warming. Scientists note that the average temperature on Earth is increasing over time. They believe that a contributing factor is the greenhouse effect.
This effect is caused by the formation of greenhouse gases, such as methane, water vapor, and carbon dioxide. Increasing the amount of greenhouse gases in the atmosphere is considered to be the cause of global warming and climate change. Water vapor, carbon dioxide, methane, nitrous oxide and ozone are main green house gases.
Carbon dioxide is steadily increasing in the atmosphere over hundreds of years and it has a longer life span than most of the gases.
Option B and C
Explanation:Carbon dioxide is the most prominent greenhouse gas of atmosphere. It is very much responsible for increasing the temperature of Earth's surface by capturing the long wave infrared lights emitted by Earth's surface.
Due to industrial revolution, various natural calamities and huge increase in population over the last few centuries, amount of carbon dioxide is increasing in atmosphere significantly. And the half life of carbon dioxide in atmosphere is around 200 years which is much more than other significant greenhouse gases. This leads to the significant contribution of carbon dioxide to greenhouse effect.
Energy moves through the biosphere in
one direction, but what path does the
energy take?
A. The energy moves from one ecosystem to the next
carried by the wind.
B. The energy is transferred in water from ecosystem to
another.
C. The energy moves through a food chain where
organisms transfer energy by eating and being eaten.
Answer:
C. The energy moves through a food chain where
organisms transfer energy by eating and being eaten.
Answer: C. The energy moves through a food chain where
organisms transfer energy by eating and being eaten.
Is it true that all cells have the same genes, but different genes are active in different cells?
Answer:
Is it true that all cells have the same genes, but different genes are active in different cells.
No, all cells are made up of a gene which is inherited from the parents cell. The gene is located in the DNA which is found in the nucleus of every living cell
Explanation:
In the 1600s, advances in microscopy led to the developm
vances in microscopy led to the development of cell theory) Which of the following statements is part of the
ll theory?
A.All cells require water and oxygen to survive.
B. All living things are made of one or more cells.
C.All cells have organelles with specialized functions.
D.All living things rely on several different types of cells.
2. In order to function, all living things require which of the following?
A cells
B. nuclei
c. organs
D tissues
3.The 1830s Theodor Schwann showed that the mature tissues of animals were traceable to embryonic cells. Which of the
wing statements of cell theory does this provide evidence for?
A) All living things are made from cells.
B. Cells are the basic units of structure and function in an organism.
3. All cells come from preexisting cells.
D.Each cell has a specific design and purpose.
Answer:
Hello! The answers are:
B. All living things are made of one or more cells.A. cellsC. All cells come from preexisting cells.Explanation:
All of the statements in the questions are features of the cell theory.
Cell Theory:
The cell theory, proposed by scientists Theodor Schwann, Matthias Schleiden, and Rudolph Virchow, is the basic principle of biology. The cell theory contains three features or clauses that explain the basic structure and function of life. The cell theory postulates the following:
All living things, either unicellular or multi-cellular, are composed of cells.All cells originate from pre-existing cells, not through spontaneous generation.The cell is the basic unit of life. This basically means that the cell governs all structural and functional processes of life.Chlorenchyma and aerenchyma are modified ____________ (a) phloem (b) sclerenchyma (c) collenchyma (d) parenchyma
They are D) modified parenchyma
Which method is most likely to be used to determine the absolute age of animal bones that are less than 45,000 years old ?
Answer: CARBON DATING
Geologists do not use carbon-based radiometric dating to determine the age of rocks. Carbon dating only works for objects that are younger than about 50,000 years, and most rocks of interest are older than that. Carbon dating is used by archeologists to date trees, plants, and animal remains; as well as human artifacts made from wood and leather; because these items are generally younger than 50,000 years.
Which genotypes will be included for the offspring in the Punnett square for this cross?
PP, Pp, and pp
PP and pp
PP and Pp
Pp only
Pp only will be included for the offspring in the Punnett square for this cross
Explanation:
In an experiment Mendel shows how to keep it in grid when he conducts a cross and presents a way of showing the potential combinations of parental alleles in the offspring is to align the alleles and call it a Punnett square. It functions like a multiplication table.
The phenotype experiment work on appearance of organism. It can be understood as if female part of flower is PP genotype it means entire offspring has pink color. If female part has Pp genotype it means 50% of offspring will have pink and 50% have another color.
Answer:
d
Explanation:
What are 3 main things a plant needs to grow
Answer: Water Oxygen sunlight hope that helps
Explanation: :)
Plants need sunlight, water, and nutrients to grow.
Explanation:A plant needs three main things to grow: sunlight, water, and nutrients.
Sunlight: Plants require sunlight for photosynthesis, a process in which they convert sunlight into energy. This energy is used to grow and develop.Water: Water is essential for a plant's survival as it is involved in various functions such as transporting nutrients, maintaining cell turgidity, and facilitating photosynthesis.Nutrients: Plants need essential nutrients like nitrogen, phosphorus, and potassium, which are obtained from the soil or through fertilizers. These nutrients help in the plant's growth and development.Learn more about plant growth here:https://brainly.com/question/33308692
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In pea plants, purple flowers are dominant over white flowers, which are recessive. Cross two homozygous dominant (PP) parents.
Final answer:
Crossing two homozygous dominant pea plants (PP) will result in 100% homozygous dominant offspring (PP) with purple flowers.
Explanation:
When two homozygous dominant (PP) pea plants with purple flowers are crossed, all of the offspring will also have purple flowers. This is because purple flowers are dominant over white flowers. As these pea plants are homozygous dominant, each parent will contribute a dominant P allele to their offspring, resulting in offspring with a PP genotype. Therefore, a Punnett square analysis for this cross is not required as the outcome will be 100% PP offspring with purple flowers.
Which is a better conductor of heat: air or a copper wire? Why?
A) Air is a better conductor of heat because it is a mixture.
B) Copper is a better conductor of heat because it contains electrons.
C) Air conducts heat better because the molecules in a gas are further apart.
D) Copper wire conducts heat better because molecules in a solid are closer together.
Answer:
i think the answer is D
Explanation:
A better conductor of heat is copper wire, which conducts heat better because molecules in a solid are closer together, which is option D. Copper is a good conductor of heat because it has free electrons that can move throughout the metal and transfer thermal energy quickly.
What is copper?Copper is a better conductor of heat than air because of the way its atoms and molecules are arranged. In a solid like copper, the atoms are packed closely together, allowing heat energy to be transferred quickly through the material. In contrast, in a gas like air, the molecules are much further apart, and heat energy transfers more slowly as a result. This is why copper is often used in electrical wiring and in other applications where high conductivity is needed.
Hence, a better conductor of heat is copper wire, which conducts heat better because molecules in a solid are closer together, which is option D.
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Which of the following best defines climate? (3 points) Short-term atmospheric conditions of a region The weather pattern of an area over two weeks or less Average weather conditions of a region over the long term A pattern of weather that never changes
Answer:
Average weather conditions of a region over the long term
Explanation:
Answer:
Average weather conditions of a region over the long term
Explanation: That is the correct answer I think
Many wants to increase the yield of herd garden. A friend suggest that she pinch of the tops of the plants as the grow by cutting off the apical meristem how should this increase yield?
Answer: Photosynthesis takes place in the chloroplast of green plant cells
Explanation:
Unspecialized human cells are called ____________.
Question 3 options:
cancer cells.
mitotic cells.
signal cells.
stem cells.
Answer:
D. Stem Cells
Explanation:
Stem cells are cells that are able to be developed into most other types of cells in order to repair and restore damage in the body. To do this, stem cells must be able to specialize into many other different cell types. This means that first the stem cells must be an unspecialized human cell to later become specialized.
Investigator Smith is convinced that he has found a gun used in two shootings. When compared under the microscope, the two bullets do not seem to match up. If Investigator Smith is correct, what could be a reason why the bullets don't match?
The bullets hit at different speeds.
The bullets were bought from different gun stores.
The bullets were fired one right after the other.
One bullet was fired several years after the other.
Answer:
D) One bullet was fired several years after the other.
Explanation:
Every gun barrel has rotating groves because gives to the bullet a spin movement in order to improve accuracy during its flight. This spiralling groves leave in the bullet some unique marks, that if you can fire another bullet from the same gun, under a microscope an investigator can match this groves. But time and the use on the gun can change the patron of this marks leading to the deterioration on the gun barrel, possibly take us to a missmatch on two bullets fired by the same gun.
Final answer:
The bullets don't match because they were fired from different guns, which create unique markings on the bullets.
Explanation:
Investigator Smith may have incorrectly concluded that the gun he found was used in the two shootings. One possible reason why the bullets don't match is that they were fired from different guns. Each gun leaves distinct markings on a bullet when it is fired, creating unique striations. If the bullets under the microscope do not show similar markings, it suggests they were not fired from the same gun.
Therefore, the correct answer is that the bullets were fired from different guns. This could be due to different guns having different barrel characteristics, wear and tear, manufacturing defects, or modifications.
It is important for a forensic investigator to analyze various factors, such as bullet markings and gun characteristics, to determine if a bullet was fired from a specific gun.
what do the letters on the inside of the puunnett squre stand for
Answer:
The possible genotypes of their children
Explanation:
A punnet square can be described as a diagram which illustrates the outcomes of a cross. The letters on the outside of a punnet square depict the genotype of the parents whereas the letters on the inside depict the genotype of the children.
For example consider the following punnet square:
A a
A AA Aa
a Aa aa
In the following punnet square, Aa and Aa are the genotypes of the parents.
the children would have the probability of having the following genotypes: AA, Aa, Aa, aa
A cell that is undergoing mitosis is examined with a light microscope. An observation that would allow for identification of the cell as an animal cell rather than a plant cell would be
Question 10 options:
the centrioles migrating.
the chromosome pairs separating from each other.
the chromosomes twisting about each other.
the nucleoli disappearing.
Answer:
An observation that would allow for identification of the cell as an animal cell rather than a plant cell would be the centrioles migrating.
Explanation:
Centrioles start moving in the direction of opposite ends of the cell, whereas the microtubules starts moving from the centrioles and gets attached to the centromeres of chromosomes. the microtubules that have been projecting from the centrioles on opposite poles of the cell are connected to individual centromere and further form into spindle fibers. After the accumulation of chromatin into chromosomes in prophase, resulting in the breaking apart of the membrane or nuclear envelope. In case of animal cells, the centrioles present at the nucleus starts to separate and go to the opposite poles of the cell. As the centrioles transfer, a spindle is seen to be formed between them.
PLEASE ANSWER QUICK!!! Jonas drew a diagram to compare two kinds of evidence that support the theory of evolution. Which label belongs in the area marked Z? no longer used by species link two species to a common ancestor evidence of adaptations to similar environments part of comparative anatomy studies
The label that belongs in the area marked Z indicates evidence of adaptations to similar environments. Thus, the correct option for this question is C.
What is Evolution?Evolution may be defined as a type of biological process that involves changes in the proportions of biological types in a population over a specific period of time. It involves the descent with modification from preexisting species.
The term adaptation can be defined as the evolutionary strategies through which species face different environments. Different kinds of species may have identical types of adaptations in order to face the same environmental conditions.
Therefore, the label that belongs in the area marked Z indicates evidence of adaptations to similar environments. Thus, the correct option for this question is C.
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Answer:
The correct answer is (C) evidence of adaptations to similar environments.
state in sequence four main steps of sexual reproduction and write two advantages of such reproduction
Answer:
Hello!
Sexual Reproduction has slightly different stages in plants and animals. Sexual reproduction in plants has the following steps:
PollinationGamete germinationFertilizationZygote FormationSexual reproduction in animals has the following steps:
Gamete formation Fertilization Zygote formation Zygote develops into embryoAdvantages:
The embryo develops in a protective environment i.e. the ovary in plants and uterus in animals. Sexual reproduction produces genetic variations in the offspring that aid survival and incur resistance to diseases.Explanation:
* Pre-fertilization stages include meiosis 1 and 2 that involve the formation of genetically different gametes.
* The stages, zygote formation and the development of the zygote into an embryo and later into an individual, are classed as post-fertilization stages.
Which feature in middle of the Atlantic Ocean is formed at a divergent boundary?
Answer:
The Mid-Atlantic Ridge
Explanation:
The Mid-Atlantic Ridge includes a deep rift valley that runs along the axis of the ridge along nearly its entire length. This rift marks the actual boundary between adjacent tectonic plates, where magma from the mantle reaches the seafloor, erupting as lava and producing new crustal material for the plates.
Answer:
rift valley
Explanation:
hope this helps!! :D
How can an earthquake or landslide produce a tsunami
Answer:
Tsunamis are large, potentially deadly and destructive sea waves, most of which are formed as a result of submarine earthquakes.
Explanation:
Explain how gases in the
atmosphere can cause the
greenhouse effect and describe
one problem which it may cause
PLEASE HELP ME
Gases in the atmosphere, ie., carbon dioxide, nitrous oxide, and methane, trap the heat from water vapor the sun has evaporated. This can cause higher temperatures, and forms the greenhouse effect. A problem it causes is global warming, since those gasses are trapping the heat in the atmosphere, harming the ozone layer, causing more ultraviolet rays to go through, which is very harmful to humans.
Hope I helped :)
Explanation:
The greenhouse effect is a process that occurs when gases in Earth's atmosphere trap the Sun's heat. This process makes Earth much warmer than it would be without an atmosphere.This cause global warming
Compare the composition of the Inhaled and exhaled air ?
Where do clouds form? Select three options.
A. at the ground
B. in the upper atmosphere
C. near the Earth’s surface
D. where the air has very low humidity
E. where the atmosphere contains few particles
B
By the upper atmosphere, it is meant the upper atmosphere of the troposphere – the lowest layer of the earth’s atmosphere where weather events occur.
Explanation:
Liquid water first evaporates from the earth’s surface, mostly due to heat energy from the sun. The water vapor cools as it rises into the upper troposphere. This is because the upper atmosphere is cooler. As the water vapor cools, it coalesces into water droplets. These droplets, for them to form a cloud, need seed-like particles – like dust suspended in the atmosphere– to coalescence on. This way, the droplets grow bigger and this is how clouds are formed.
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Answer:
B DE
Explanation:
What do you think is the evolutionary significance of DNA polymerase? What do you think would happen if there was a genetic mutation on the genes encoding for DNA polymerase?
Answer:
Evolutionary significance of DNA polymerase: DNA polymerase is a key enzyme of DNA replication. During replication, it duplicates the DNA strand which then moves to next-generation, thus, continuing the life generations after generation.
If there will be a mutation in DNA polymerase, the nature of mutation would define the consequences. If it is a NEUTRAL mutation, it would not affect the action of DNA polymerase. However, if it a POSITIVE mutation, it may improve the function of DNA polymerase. On the other hand, if the mutation is NEGATIVE, it can be very harmful to living organisms because negative mutation can impair the function of enzyme thus stopping the DNA replication. This would most likely seize the life on Earth.
DNA polymerase plays a vital role in DNA replication, ensuring accurate transmission of genetic information. A genetic mutation on the genes encoding for DNA polymerase can compromise the fidelity of DNA replication and lead to the accumulation of harmful mutations.
Explanation:The Evolutionary Significance of DNA PolymeraseDNA polymerase is an essential enzyme in the process of DNA replication. It catalyzes the synthesis of new DNA strands by adding complementary nucleotides to the growing chain during DNA replication.
The evolutionary significance of DNA polymerase lies in its accuracy and efficiency in replicating DNA. Its fidelity ensures that genetic information is faithfully preserved, allowing for the transmission of genetic traits from one generation to the next.
If there is a genetic mutation on the genes encoding for DNA polymerase, it can lead to a compromised fidelity of DNA replication. This can result in a higher rate of errors during DNA replication, leading to the accumulation of mutations in the genome. These mutations can potentially have detrimental effects on the organism, including genetic disorders, diseases, or reduced survival and reproductive fitness.
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What pattern do you observe in beak length from 1973 to 1978
Answer:
In 1973,
The maximum length for the beak of birds was obserbed to be less than 12mm in length
While, at 1978, it was observed that some birds had beak length at 12mm.
From 1973 to 1978, it can be observed that short beaks bird was more in population than 1978.
Will give brainliest plz help
#30
In which area would you have the most difficulty breathing?
Answer:
The top of the mountain
Explanation:
The air is the thinnest at high altitudes, like the top of a mountain
Answer:
The top of the mountain
Explanation:
The top of the mountain is where the air is under the least pressure and, a lesser amount of oxygen is present, along with that, because in the picture, the top of the mountain would have the least amount of air pressure, said air (specifically oxygen) will have more difficulty making it through your lung's selectively permeable membranes, and making it's way around your body in your red blood cells.
I need help please and thank you
Answer:
It's C.
Explanation:
It's not Muscles because muscles are tissues made up of specialized elongated cells or fibres which can contract(shorten or thicken) to bring about movements. And we all know Ca and Proteins are needed for the formation of strong and healthy bones, muscles and teeth. Same goes for ligaments.
For polypeptide chains, its a vital part involved in the breaking down of Proteins.
Proteins->Proteoses->Peotones->Polypeptide-> amino acids.
PeAcE.
Science help please
Answer: It would actually be C
Explanation: the mRNA stand for Messenger RNA. It's the type of RNA that carries protein-building. Hence... its C
4. Which is a part of the axial skeleton?
a. Humerus
b. Femur
6. Ribs
d. Hip
Answer:
ribs
Explanation:
c. ribs is the correct answer
Single-celled algae and multicellular plants
both perform photosynthesis.
Photosynthesis is the process by which both
types of organisms
A. make food.
B. get rid of wastes.
C. extract energy from food.
D. reproduce.
Answer:
The correct option is A) make food.
Explanation:
Photosynthesis can be described as a process by which organisms like plant and some algae make their own food. They use light energy from the sun to convert carbon dioxide and water into glucose and oxygen. Oxygen is the by- product of this reaction. Hence, option A is correct.
Other options are wrong because photosynthesis is not a process by which energy can be extracted from food or it is not a process by which excretion of waste occurs. Neither is it a process of reproduction.
The single-celled algae and multicellular plants A. make food. Therefore , A. make food is correct.
Photosynthesis is a vital biological process in which both single-celled algae and multicellular plants harness energy from sunlight to convert carbon dioxide and water into glucose.
This transformative process occurs in chloroplasts, where pigments such as chlorophyll capture light energy.
This captured energy facilitates the synthesis of carbohydrates, serving as the primary source of organic nutrients for these organisms.
During photosynthesis, light energy is converted into chemical energy, stored in the form of glucose.
This glucose not only serves as a direct energy source for the organisms but also acts as a foundational building block for other essential organic molecules.
By utilizing carbon dioxide and releasing oxygen as a byproduct, photosynthesis plays a crucial role in maintaining atmospheric balance.
While photosynthesis is indeed a process vital for generating sustenance, it is not directly involved in waste elimination, energy extraction from food, or reproduction.
The primary focus is on the synthesis of organic compounds to support the metabolic and growth needs of these organisms.
option A, "make food," accurately encapsulates the core function of photosynthesis for both single-celled algae and multicellular plants.
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