Describe four ways in which natural process add harmful particles to the air
The wind blows particles of molds and plant pollen; forest fires, soil erosion, and dust storms add particles of smoke and dust; erupting volcanoes spew out clouds of dust, ash, and poisonous gases.
Which process transfers pollen from the male reproductive structures to the female reproductive structures?
The processes known as pollination which is responsible for the transfer of pollen from the male reproductive structures to the female reproductive structures
Explanation:The sperms are produced in the male sex organs which are separate from the female reproductive organs which is responsible for the production of eggs.The plants sperms are known as pollen grains. As plants are unable to move, so this transfer is done by the process of pollination.Pollination can be done by air or water movement.In air pollination, pollen grains fly through air to reach the stigma of female reproductive organs of plants.Answer:
pollination
Explanation:
big brain
if a tall stem is dominant characteristic in which case is the charistic of tall definitely expressed
In which kingdom would be an immovable, multicellular, eukaryotic , autotroph belong
The answer is Plantae kingdom. The mentioned characteristics best describe the Kingdom. The next probable group would have been the Protoctista Kingdom but some move by use of flagella and cilia (hence not immovable). Protoctista Kingdom has heterotrophs too. The other known Kingdoms are Animalia, Fungi, and Prokaryotae.
Who is generally accepted as Tutankhamun's father?
Select one:
a. Akhenaten
b. Ramesses II
c. Thutmose II
d. Mentuhotep VIepted as Tutankhamun's father?
which process is directly responsible for the trails of a comet facing away from the sun
A. Solar Wind
B. Gravitational effects of nearby planets
C. The comets rotation
D. Heating by the sun
Answer: The correct answer is D. Heating by the sun.
Comets are balls composed of dust and ice orbiting around the Sun in elliptical orbits. The orbit of the comet takes it near and far away from the sun. As the comets get closer to the Sun, the heat of the sun vaporizes the materials on the surface of the comet which forms a tail pointing away from the sun.
A comet tail is visible from Earth when they are illuminated by the Sun on approaching the inner Solar System. The solar radiations vaporize the volatile materials of the comet which streams out from the nucleus and carries dust away with it. The pressure due to the Sun’s radiation and solar winds leads to the formation of a tail pointing away from the Sun.
Which statement is true about the cell theory?
It is tested only once.
It is based on a random guess.
It is based on experimentation.
It is a claim posed by some scientists.
The statement is true about the cell theory is It is based on experimentation. So, option C is correct.
What is cell theory?The cell theory suggest that all cells come from other cell. The other cell refers to the pre-existing cell.
Robert Hooke was the one who discovered many fact about cells. He studied the cells scientifically which we call cell biology.
So, option C is correct.
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URGENT PLEASE HELP
DNA is comprised of smaller segments of genes that code for the production of a specific protein. The role of RNA polymerase in the initiation step of transcription is to?
A)bind and unwind the double helix.
B)recognize the promoter sequence of the gene.
C)all of the above
D)determine where gene synthesis will start.
During replication, which sequence of nucleotides would bond with the DNA sequence TATGA?
The complementary DNA sequence to 5'-TATGA-3' is 3'-ATACT-5', following the base pairing rules of A with T and G with C during DNA replication.
During DNA replication, the sequence of nucleotides that would bond with the DNA sequence 5'-TATGA-3' is 3'-ATACT-5'. DNA replication involves the pairing of complementary bases where adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G). Therefore, each nucleotide in the given sequence pairs with its complement on the new strand being formed.
Here's how the pairing works:
The first 'T' in the original sequence pairs with an 'A'
The 'A' pairs with a 'T'
The 'T' again pairs with an 'A'
The 'G' pairs with a 'C'
The last 'A' pairs with a 'T'
So, the complementary strand in the direction of 3' to 5' will be 3'-ATACT-5'.
Sponges, members of the Porifera, might be the simplest multicellular animals on Earth. They do not have any tissues, organs, or organ systems. In order for sponges to have evolved, what MUST have happened first? A) the organization of cells into groups B) symbiotic relationships among various cells C) the evolution of cells with nuclei and organelles D) the development of the cell wall as a protective mechanism
Answer:
C) the evolution of cells with nuclei and organelles
Explanation:
Sponges are eukaryotes and have well define membrane bound nucleus and organelles in their cells. They lack tissues and hence, do not need organization of cells into groups. Evolution of sponges would require origin of eukaryotic cells from the ancestral cells. Being animals, they lack cell wall around their cells.
The evolution of cells with nuclei and organelles was a fundamental development that facilitated the evolution of basic multicellular organisms such as sponges.
Explanation:
In order for sponges or Porifera, which are the simplest multicellular animals on Earth, to have evolved, there must have been an important foundational development. That development was C) the evolution of cells with nuclei and organelles. This cellular evolution marked a significant transition from unicellular organisms to multicellular organisms. Basic cells with no nuclei or organelles, namely prokaryotic cells, evolved into more complex cells with nuclei and organelles, termed eukaryotic cells. Fundamental multicellular life forms such as sponges could have thereafter originated based on the additional complexity offered by these eukaryotic cells.
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which is one of the disadvantages of using fossil fuels as an energy resource? (a) burning fossil fuels produces radioactive wastes. (b) gases released during combustion can form acid rain. (c) the heat released during combustion can be used to produce electricity. (d) fossil fuels produce a tremendous amount of energy thst is difficult to contain.
Answer:
It's B
Explanation:
Fossil fuels formed from the remains of living things or organic matter. When tremendous pressure and heat are applied to organic matter for long periods of time, the organic matter turns into fossil fuels causes the pressure that turns organic matter into fossil fuels.
Final answer:
The correct option is (b) gases released during combustion can form acid rain. Burning fossil fuels releases gases that can lead to the formation of acid rain, representing one of the disadvantages of using fossil fuels as an energy resource.
Explanation:
One of the disadvantages of using fossil fuels as an energy resource is that gases released during combustion can form acid rain. Fossil fuels, which include coal, oil, and natural gas, are nonrenewable sources of energy that were formed from the remains of plants and animals that lived millions of years ago. When these fuels are burned, they release carbon dioxide and other pollutants into the atmosphere. These emissions contribute to environmental issues such as global warming, smog, and acid rain, which are caused by the release of sulfur dioxide and nitrogen oxides during the combustion process. Accidents during fossil fuel extraction and transportation can also lead to devastating environmental consequences, such as oil spills.
Tracks the location, movement, and amount of precipitation in storms
radar or satellite
Please help quickly! I give brainliests!! WORTH 7 POINTS!!!!
Consider the following statement:
Organisms that reproduce asexually are at a higher risk of extinction that organisms that reproduce sexually.
Do you agree or disagree? Explain your answer.
NEEED HELP ASAP PLSSSSSSS POINTS AND BRANILIEST
1) What describes the unusually large release of plasma from the sun's corona?
Auroras
CME
Solar wind
Solar flare
__________________________________________________________________
2) The table below compares the distances between two bodies.
Comparison of Distance
Bodies Distance
X and Y 30.2 AU
Y and Z 7.2 light years
Based on the table, which of the following statements could be true?
X and Y are both within the solar system.
Y and Z are both within the solar system.
X and Y are farther apart than Y and Z.
Y and Z are both present on Earth.
_____________________________________________________________________
Answer:
1) CME describes the unusually large release of plasma from the sun's corona
2) X and Y are both within the solar system.
Explanation:
1) The coronoid mass ejection (CME) is a wave of radiation and solar wind released from the sun during the maximum solar activity.
This is a very dangerous wave because it might cause huge damages to the electrical system and the communication system on earth.
The coronoid mass ejection throw important quantities of material and electromagnetic radiation, beyond the solar surface.
The ejected material is plasma from the sun´s corona composed principally of electrons and protons, and might also have small quantities of heavier particles such as helium, oxygen and even iron.
2) X and Y are both within the solar system.
The farthest distance from the sun belongs to Pluton, which is located at 39.53 AU away from the sun. X and Y are located at 30.2 AU, which means that they are within the solar system.
Considering that 1 AU = 1,58125e-5 light-years, then Z might be located outside the solar system.
How are the energy of wind and flowing water each related to solar energy?
in sexual reproduction, how do the offspring compare to the parent
Where is oxygen found or obtained from?
Answer:
Oxygen is obtained from photosynthesis process.
Explanation:
Oxygen is one of the most important element required for survival of living organism. Living beings inspire oxygen and expire carbon dioxide which is collectively called as respiration and is considered as most important biological process.
Plants prepare their own food through the process called photosynthesis. It is process through which the plants uses carbon dioxide and water as reactants and gives out glucose and oxygen as the end product.
The released product is sugar and gas, in which the sugar is consumed as food by other living organism and the gas called oxygen is used for respiration and other biological process. Thus it can be inferred that oxygen is obtained from process called photosynthesis.
What does an H-R diagram relate a star's temperature to?
a.
the amount of heat created by the star
c.
the type of star
b.
the elements the star contains
d.
the star's absolute magnitude
Answer:
The correct answer is option d, that is, the star's absolute magnitude.
Explanation:
The Hertzsprung-Russell diagram or the H-R diagram also called the color-magnitude diagram. It demonstrates the association of the color of the stars (temperature) with the luminosity of the star or absolute magnitude. The stars apparent magnitude at a distance of ten Parsec from Earth is known as the absolute magnitude of the star.
Identify the type of feedback mechanism that results in the rate of a process increasing as the concentration of the product increases.
A) neutral feedback
B) positive feedback
C) negative feedback
D) oscillating feedback
The correct answer is option B
In a positive feedback the presence of a chemical or product intensifies or increases the resulting action/product. For example , during child birth the release of oxytocin intensifies the process of contraction. Another example is of blood platelets which when increase in number also enhances the rate of the blood clothing. While in a negative feedback the presence of a chemical or product reduces or discourages the resulting action/product.
Which of the following uses of genetic engineering would most likely be debated
Wetlands have many benefits, including recreational opportunities, fish, and improving water quality.
Answer:
Correct. Wetlands create a nursery for many types of fish, and also improve water quality by removing nitrogen phosphorus and pesticides from agricultural runoff.
How was the european rabbits transported to its new ecosystem? (australia) Was it intentionally transported, and if so, for what reason?
natural selection is best described as
which characteristic can be inherited
A) long toes
B) short temper
C) sense of humor
D) acting ability
Long toes can be inherited from parents to offspring in organisms, considers a heritable trait, hence option A is correct.
What is a heritable trait?A heritable trait is a kind of offspring trait that matches the parents' related trait more than it fits the same trait in a random individual in the population.
It is a measurement of how well differences in people's genes describe differences in their traits. Sense of humor is not a heritable trait, it is a psychological condition that is different in parents and offspring.
A gene is key to the transmission of traits from parents to offspring, it is a DNA sequence that is expressed in the form of protein.
Therefore, the long toe is a character which can be inherited from parents, hence option A is correct.
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In what pattern does the flow of energy in the ecosystem take place
How do sponges differ from flagellate protists
Sponges have specialized cells that resemble the parts of the same animal unlike a group of individual cells composed of individual organisms. Protists are unicellular, and live in isolation even when there's a bunch of them stacked close to each other. They are unspecialized cells.
Sponges have a body skeleton that is not composed of cells. They perform sexual reproduction by forming both the male and the female gametes. All these features are absent in the protists.
The process of photosynthesis converts carbon atoms from carbon dioxide into _______. A. sugars B. hydrogen C. oxygen D. salts
Answer:
Sugars is the answer
The process of photosynthesis converts carbon atoms from carbon dioxide into sugars. Therefore, option A is correct.
What is photosynthesis?In the physicochemical process known as "photosynthesis," green plants employ light energy to propel the synthesis of organic molecules. In the end, sunlight is the sole source of energy for all life on Earth. The foundation of life on earth is the photosynthesis process, which plants use to harness solar energy.
Chloroplasts, which house the chlorophyll in plants, are where photosynthesis occurs. The thylakoid membrane, a third inner membrane that creates long folds inside the chloroplast and is bordered by a double membrane, is present inside chloroplasts.
It converts carbon atoms from carbon dioxide into sugar. Hence, option A is correct.
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Name two ways carbon (usually in the form of CO2) enters the atmosphere.
Respiration (exhaling) by animals and by burning of fossils fuels.
Why is carbon important in biology?Carbon is an important element as it readily forms bond with other atoms such as oxygen and hydrogen. This is important in the formation of organic molecules.
Carbon is an important constituent of many biomolecules including DNA and RNA.
Carbon is a prime greenhouse gas which traps the sun’s energy coming on the earth. Carbon is present in the form of CO2 in the atmosphere of the earth.
Carbon is a fossil fuel. It is found in the dead remains of plants and animals of the pre-historic era. The age of fossil fuels is determined by carbon dating technique.
Carbon is important as plants take up carbon dioxide for photosynthesis. Plants also undergo carbon fixation for producing carbon rich compounds.
Therefore, carbon is important to sustain life on earth.
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A nonnative species of fish is introduced into a leg which would most likely prevent this fish for becoming an invasive species
A- The lake ecosystem has no other larger fish
B- The fish shares a niche with another species
C- There are no organisms that would eat this fish
D- The fish can thrive in the temperature of the week
The answer is B. Invasive species are successful in novel environments due to lack of a natural predator or competition. Therefore if the non-native share a niche with other fish in the lake ecosysem, there will definitely be competition for resources. This could lead to competitive exclusion of one species or resource partitioning between the species. Consequently, the non-native fish species will not invade the new environment unchecked.
Answer: the fish shares a niche with other species, trust me
Explanation:
Do the optimal conditions for catalase functioning that you found correspond with the conditions in the mammalian liver where it came from?