In eukaryotic cells, a __________ by a __________ targets a growing peptide to the endoplasmic reticulum.
Answers
Answer:
Signal Peptide, Signal Recognition Particle (SRP)
Explanation:
In eukaryotic cells, a signal peptide is a brief sequence of amino acids found at the beginning of a developing peptide. Its major function is to direct the peptide to its correct intracellular destination. The signal peptide is detected by the signal recognition particle, a protein complex (SRP). The SRP attaches to the signal peptide to facilitate its transport to the endoplasmic reticulum (ER).
An RNA molecule and a protein component constitute the SRP. The protein subunit binds to the signal peptide, whereas the RNA molecule binds to an ER membrane receptor. This enables the SRP to direct the expanding peptide to its proper location. The SRP then allows the peptide to enter the ER by releasing it.
Once inside the ER, sugar molecules are added to the peptide to modify it. These sugar molecules facilitate the correct folding of the peptide, allowing it to operate properly. Following modification, the peptide is delivered to its eventual destination, such as the Golgi apparatus or plasma membrane.
In eukaryotic cells, the signal peptide and SRP are key components of protein transport. They ensure that the developing peptide is properly directed to the endoplasmic reticulum and eventually to its ultimate destination. Without the signal peptide and SRP, proteins cannot move themselves throughout the cell.
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Related Questions
What is continental drift
Answers
Answer:
the gradual movement of the continents across the earth's surface through geological time.
The spread of a complete metaphase chromosome set presented for diagnostic purposes is called a?
Answers
The spread of a complete metaphase chromosome set presented for diagnostic purposes is called a karyotype.
What is a karyotype?Karyotype refers to the complete set of chromosomes in an organism, which includes all its genetic information. It is a process that scientists use to identify and analyze the number, shape, and size of an individual's chromosomes. The chromosome spread is usually taken from the white blood cells of a blood sample and is arranged in pairs, with the largest chromosome pairs appearing first. Karyotypes are used to diagnose certain genetic disorders and abnormalities.
The spread of a complete metaphase chromosome set presented for diagnostic purposes is called a karyotype.
Karyotyping is the analysis of the complete set of chromosomes in an individual's cells. A sample of blood, bone marrow, or other tissue is taken from the patient for karyotyping, and the chromosomes are visualized under a microscope after they have been stained and arranged in a pattern. The chromosomes are classified according to their size, banding patterns, and centromere position. Chromosomes that are abnormal in size, shape, or number can be identified and used to diagnose chromosomal disorders.
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1. Describe the main pathways of the water cycle, including
how water enters and leaves the atmosphere.
Answers
Answer:
Enjoy your free answer
Explanation:
Liquid water evaporates or the process of transpiration, forming water vapour that moves through the atmosphere, then comes down as precipitation, either enters the soil or transfers onto the lakes, rivers, oceans, etc.
Enjoy!
Liquid water evaporates or the process of transpiration, forming water vapour that moves through the atmosphere, then comes down as precipitation, either enters the soil or transfers onto the lakes, rivers, oceans, etc.
What is water cycle?The water cycle, also known as the hydrologic cycle or the hydrological cycle, is a biogeochemical cycle that describes the continuous movement of water on, above and below the surface of the Earth.
Moreover, the water cycle shows the continuous movement of water within the Earth and atmosphere. It is a complex system that includes many different processes. Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow.
Therefore, the hydrologic cycle is important because it is how water reaches plants, animals and us! Besides providing people, animals and plants with water, it also moves things like nutrients, pathogens and sediment in and out of aquatic ecosystems.
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cell theory states that all living things contain one or more cells. Why do you think cell theory meets the definition of a scientific theory? Do you think it should be a scientific law? Explain your response.
Answers
Answer:
Cell theory is made up by doing a number of experiments just like scientific theory.
Explanation:
Cell theory meets the definition of a scientific theory because cell theory was made by performing a number of experiments just like scientific theory. Yes, cell theory should be scientific law if there is no change occurs in the statement of cell theory then it must be considered as law. Law should be made when the theory is passed through from a number of experiments.
Answer:
Cell theory meets the definition of the scientific theory as it is proven by numerous experiments and observations.
Explanation:
Anyone can observe the cells under the microscope using a basic staining procedure.
Which physical evidence supports the evolution of earth due to chemical weathering?
A. Hammer shape of Bryce Canyon rocks.
B.Red color of Bryce Canyon rocks.
C.Streaks of the face of Wave Rock.
D. Concave shape of Wave Rock
Answers
Explanation:
how much is that I was in a while and it will get a new for me too 60th anniversary to the hospital for my family is so good and I don't think you should go for the next time we got home
Answer:
The correct answer is - Concave shape of Wave Rock.
The concave shape of Wave Rock is a nice physical evidence of deposition in the Earth's evolution. It is a land structure dated to 2.7 billion years old, and it is the basis around which the Australian continent formed. The Wave Rock structure is created by weathering of the surrounding area, and this is exactly what proves the deposition part, because Wave Rock was bellow the ground, and that was due to the deposition of the material around it over time, but since it is made out of much tougher material from its surroundings, the weathering lowered the surrounding terrain, while the bedrock remained to witness for the past.
Explanation:
The correct answer is - Concave shape of Wave Rock.
The concave shape of Wave Rock is a nice physical evidence of deposition in the Earth's evolution. It is a land structure dated to 2.7 billion years old, and it is the basis around which the Australian continent formed. The Wave Rock structure is created by weathering of the surrounding area, and this is exactly what proves the deposition part, because Wave Rock was bellow the ground, and that was due to the deposition of the material around it over time, but since it is made out of much tougher material from its surroundings, the weathering lowered the surrounding terrain, while the bedrock remained to witness for the past.
Explanation:
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digested fats are absorbed from the intestine by the lymph capillaries. True or False
Answers
True. Large molecules like dietary lipids and lipoproteins are absorbed and transported by lacteals, which are lymphatic vessels that are only found in the villi of the small intestine fats.
Via lacteals, the body's digested fat is transported from the intestine's villi to the lymph veins (special lymph capillaries). Because of its high fat content and milk-like appearance, the lymph found inside lacteals is known as chyle.
As a result, the statement is accurate. Lymph is the term for the fluid that has entered the lymph capillaries. The lymphatic system's second job is to transfer lipids and fat-soluble vitamins from the digestive tract to the venous circulation once they have been absorbed from the digestive system.
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why all alkali are base but not all base are alkalies
Answers
A base and an alkali are both substances that may dissolve in water and neutralise acids. However, not all bases are water soluble.
What effects does alkali have on your body?Hydroxyl groups are typically found in alkalis, and when they break down in water, they form hydroxide ions. Alkali chemicals harm the GI tract by saponifying lipids and solubilizing proteins, allowing for extensive tissue penetration. As a result, they cause substantial penetrating damage, unlike acids.
What properties does an alkali have?Alkalis taste BITTER and feel SOAPY to the touch.When litmus paper is exposed to alkalis, it becomes blue.Alkalis have a pH higher than 7.Caustics are alkalis.Alkalis CONDUCT ELECTRICITY because mobile ions are present in solution.To know more about Alkali visit:
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: DNA is recovered from a suspected dead soldier. A paternity test is done to identify his parents and the results are shown in the given figure. Which Parents are the likely parents of the soldier? Soldier Parents A B Parents C D Parents | Parents E F G H II TIN I O O O O Parents C and D Parents E and F Parents G and H Parents A and B
Answers
The likely parents of the soldier are Parents A and B.
This is because the DNA of the soldier matches the DNA of Parents A and B.
The DNA of the other parents (C, D, E, F, G, and H) does not match the DNA of the soldier, therefore they are not the likely parents of the soldier.
It is important to note that DNA is unique to each individual and is inherited from both parents. In a paternity test, the DNA of the suspected parents is compared to the DNA of the child to determine if there is a match.
If there is a match, it is likely that the suspected parents are the biological parents of the child. In this case, the DNA of Parents A and B matches the DNA of the soldier, indicating that they are the likely parents of the soldier.
In conclusion, the likely parents of the soldier are Parents A and B, as their DNA matches the DNA of the soldier.
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Select the option below that best describes how different cell structures work together to ensure animal cells make proteins.
A.Only the nucleus and the ribosomes work together to make proteins. The nucleus contains instructions for making proteins, and the ribosomes make those proteins.
B.Glucose diffuses through the cell membrane. After the glucose is broken down in the cytoplasm, its components enter the mitochondria, where they are converted to ATP.
ATP is then shipped to various parts of the cell, including the ribosomes. Ribosomes use ATP from the mitochondria to power the protein synthesis process
C.Glucose is made in the cell's chloroplasts and then broken down in the cell's cytoplasm. After the glucose is broken down in the cytoplasm, its components enter the
mitochondria, where they are converted to ATP ATP is then shipped to various parts of the cell, including the ribosomes. Ribosomes use ATP from the mitochondria to
power the protein synthesis process
D.ATP diffuses through the cell membrane. After the ATP is broken down in the cytoplasm, its components enter the mitochondria, where they are converted to glucose.
Glucose is then shipped to various parts of the cell, including the ribosomes. Ribosomes use glucose from the mitochondria to power the protein synthesis process and
instructions from the nucleus to build the correct protein
Answers
Answer:
c
Explanation:
.Glucose is made in the cell's chloroplasts and then broken down in the cell's cytoplasm. After the glucose is broken down in the cytoplasm, its components enter the
mitochondria, where they are converted to ATP ATP is then shipped to various parts of the cell, including the ribosomes. Ribosomes use ATP from the mitochondria to
power the protein synthesis process
D.ATP diffuses through the cell membrane. After the ATP is broken down in the cytoplasm, its components enter the mitochondria, where they are converted to glucose.
Glucose is then shipped to various parts of the cell, including the ribosomes. Ribosomes use glucose from the mitochondria to power the protein synthesis process and
instructions from the nucleus to build the correct protein
¿ Como recuperarías la Dieta Prehispánica y las tradiciones alimentarias que nos heredaron nuestros antepasados?
Answers
Answer:
A través de la literatura,
Explicación:
Recuperaríamos la Dieta Prehispánica y las tradiciones alimentarias que nuestros antepasados nos heredaron a través del estudio de su escritura sobre el plano de la dieta y los alimentos que consumen. Al adoptar la Dieta Prehispánica, podemos mejorar nuestra salud y recuperar nuestras tradiciones. También obtenemos tradiciones alimentarias que estuvieron presentes en la Dieta Prehispánica debido a la literatura escrita por las personas presentes en ese momento por lo que los documentos escritos ayudan a recuperar la Dieta Prehispánica y las tradiciones alimentarias.
Why would injecting more red blood cells into their bodies create an advantage for athletes?
Answers
Answer:
It would be a advantage because red blood cells would carry oxygen and like alot I mean, and the athletes won't run out of breath :3
Explanation:
:3
Answer:
Considering that it is the correct version of the red blood cell (i.e. it is the type they currently have), having more red blood cells can be advantages for athletes. Oxygen plays an important role in exercising. The more oxygen a person has, the harder they can push onward. In this case, as red blood cells carry oxygen and carbon dioxide, more oxygen can be brought to the muscles and other parts of the body, while carbon dioxide can be removed at a much higher and faster rate, allowing for the athletes to continue forward. Just think of it this way, the more oxygen you have, the more you can do.
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i need help i will give extra points
Answers
Answer:
both mitosis and meiosis
Which process occurs in the chloroplast?
A. Photosynthesis
B. DNA replication
C. Digestion
Answers
Photosynthesis occurs in the chloroplast .
What is chloroplast?
A chloroplast is a type of membrane-bound organelle known as a plastid that performs photosynthesis primarily in plant and algal cells. The photosynthetic pigment chlorophyll absorbs sunlight energy, converts it, and stores it in the energy-storage molecules ATP and NADPH while liberating oxygen from water in the cells.
The ATP and NADPH are then used to create organic molecules from carbon dioxide in a process known as the Calvin cycle. Chloroplasts also perform a variety of other functions in plants, including fatty acid synthesis, amino acid synthesis, and immune response. A chloroplast is distinguished by two membranes and a high concentration of chlorophyll.
Hence, photosynthesis occurs in the chloroplast
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The 2007 U.S. Energy Independence and Security Act set a goal of producing 36 billion gallons of renewable fuels by 2022. In 2017, the United States used approximately 19.4 million barrels of oil per day, or about 7.1 billion barrels per year (https://www.ceicdata.com/en/indicator/united-states/oil-consumption). If each barrel of oil produces about 32 gallons of usable fuel (gasoline, diesel fuel, heating oil), how would the production of 36 billion gallons of biofuels impact the overall amount of energy needed by the United States?
Answers
If each barrel of oil produces about 32 gallons (0.12 m³) of usable fuel (gasoline, diesel fuel, heating oil), the production of 36 billion gallons of biofuels will highly impact the overall amount of energy needed by the United States.
What is the U.S. Energy Independence and Security Act?The Energy Independence and Security Act of 2007 (EISA) is a comprehensive energy bill that was signed by President George W. Bush on December 19, 2007.
The act aims to reduce the country's dependence on foreign oil and promote the use of renewable energy, sources, while also enhancing the nature's energy security. This act increases fuel efficiency standards for vehicles, encourage development of advanced biofuels etc.
Overall, EISA represents a major step forward in the US's efforts to transition to a more sustainable and secure energy future.
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Select the best answer for the question.
13. How does the principle of faunal succession assist the technique
O A. It creates unconformities in the rock layers.
O B. It accounts for the tectonic movement throughout history.
O C. It prioritizes parts before the whole appearance of organisms.
O D. Fossils appear in the strata in a specific order based on age.
Answers
Fossils appear in the strata in a specific order based on age. The correct option is D
What is the principle of faunal succession?Principle of faunal succession states that fossils appear in rock strata in a specific, predictable order based on the relative ages of the rock layers and the evolutionary relationships of the organisms represented by the fossils.
This principle allows geologists to use the relative ages of rocks and fossils to determine the relative age of other rocks and fossils in the same area and to establish a relative time scale for geologic events.
Therefore, By comparing the sequence of fossils in different rock strata, geologists can determine which strata are younger and which are older, and thus build a chronological framework for the Earth's history.
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What group behavior is being displayed by the cattle grouping together?
Answers
Answer:
It is called a social behavior.
Explanation:
Group behavior is a term that expresses the manner of behavior among two or more interacting specie of organism to achieve a purpose. Various organisms show different group behaviors.
When cattle group together, they display a herding ungulates as the behavioral group. They come together to achieve a particular objective which could be for protection, survival, feeding etc. Thus forming a social group and interact among themselves.
what is the term given to an organism that becomes able to reproduce (accelerated reproductive development) before the body is an adult (somatic development).
Answers
Pedomorphosis is the term given to an organism that becomes able to reproduce before the body is an adult (somatic development).
Pedomorphosis, is the characteristic an organism that its juvenile or larval traits can appear later in the life. Pedomorphosis is an substitutive process to metamorphosis in which adults retain larval traits at the adult stage. This process is more common in newts and salamanders, where larvae influence s.e.x.ual maturity without losing their gills.
Pedomorphosis and neoteny represent two qualitatively different phenomena also known as neoteny is an adaptive modification of ontogeny, we can also say that pedomorphosis is its conversion in the course of evolution.
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1. Describe the formation of new bone by appositional growth. Name the spaces that are
occupied by osteocyte cell bodies and cell extensions.
2. What cells give rise to osteochondral progenitor cells? What kinds of cells are derived
from osteochondral progenitor cells? What types of cells give rise to osteoclasts?
3. How is the organization of collagen fibers different in woven and lamellar bone? What
process produces woven bone?
4. Discuss the common features of the vertebrae and contrast the structure of vertebrae from
each region.
5. List the bones and cartilage of the rib cage, including the three types of ribs.
6. Describe the girdles that make up the appendicular skeleton.
Answers
Appositional growth involves osteoblasts secreting matrix, transforming into osteocytes in lacunae, and forming canaliculi. Osteochondral progenitor cells arise from mesenchymal stem cells and give rise to osteoblasts and chondrocytes, while osteoclasts derive from monocyte/macrophage lineage cells.
1. Formation of new bone by appositional growth: Appositional growth refers to the process of bone growth that takes place on the surface of bones, where new bone is produced by the addition of layers of bone tissue to the outer surface of the existing bone tissue. It is the process by which bone tissue increases in diameter or thickness. The spaces that are occupied by osteocyte cell bodies and cell extensions are called lacunae and canaliculi respectively.
2. Osteochondral progenitor cells are produced by mesenchymal stem cells, and they give rise to osteoblasts, chondroblasts, and fibroblasts. Osteoblasts and chondroblasts give rise to osteocytes and chondrocytes respectively. Osteoclasts are derived from cells in the bone marrow that are known as monocytes.
3. Collagen fibers are arranged differently in woven and lamellar bone. In woven bone, collagen fibers are arranged haphazardly, while in lamellar bone, they are arranged in an organized fashion. The process that produces woven bone is called intramembranous ossification.
4. The common features of the vertebrae include the vertebral body, vertebral arch, and various processes. The structure of vertebrae from each region differs due to differences in the number of processes, shape of processes, and size of the vertebral body.
5. The bones and cartilage of the rib cage include the sternum, ribs, and costal cartilage. There are three types of ribs: true ribs, false ribs, and floating ribs. True ribs are attached directly to the sternum, false ribs are indirectly attached to the sternum, and floating ribs are not attached to the sternum at all.6. The appendicular skeleton is made up of two girdles: the pectoral girdle and the pelvic girdle. The pectoral girdle is composed of the clavicle and scapula, while the pelvic girdle is composed of the ilium, ischium, and pubis bones.
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What are the Negative impacts on solar systems
Answers
Answer:
The potential environmental impacts associated with solar power—land use and habitat loss, water use, and the use of hazardous materials in manufacturing—can vary greatly depending on the technology, which includes two broad categories: photovoltaic (PV) solar cells or concentrating solar thermal plants (CSP).
Explanation:
which of the following would be considered a healthy pattern of weight gain in a pregnant woman?
Answers
Answer:
Underweight women should gain 28 to 40 pounds. And overweight women may need to gain only 15 to 25 pounds during pregnancy. In general, you should gain about 2 to 4 pounds during the first three months you're pregnant and 1 pound a week during the rest of your pregnancy.
decreased umbilical blood flow stimulates the chemoreceptors and/or baroreceptors, increasing catecholamine production leading to an increase in blood flow to the essential organs, including:
Answers
Chemoreceptors and/or baroreceptors are stimulated by fallen umbilical blood flow, which results in increased catecholamine show and grown blood flow to vital organs like the heart, brain, and adrenal glands.
Catecholamines raise blood pressure, speed of breathing, heart rate, muscle strength, and mental acuity. Additionally, they increase blood flow to the major organs, such as the heart, brain, and kidneys, while decreasing blood flow to the skin.
When fetal blood pressure changes, baroreceptors affect the FHR via the vagus nerve. The baroreceptor reflex is triggered by almost any stressful situation in the fetus. This reflex causes selective peripheral vasoconstriction, hypertension, and bradycardia.
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fill in the blanks
A train car is to a train, as a ____ is to a polymer and a molecule is to _____.
Answers
Answer:
a molecule is to an atom........................
A train car is to a train, as a monomer is to a polymer and a atom is to a molecule.
What is a polymer?A polymer is a large molecule composed of repeating subunits called monomers. It is formed through a process called polymerization, where monomers chemically bond together to create long chains or networks. Polymers can be found in various natural and synthetic materials and play a significant role in our daily lives.
Natural polymers include proteins, DNA, cellulose, and rubber, while synthetic polymers are created through chemical reactions in laboratories and include plastics, synthetic fibers, and resins. Polymers exhibit a wide range of properties and can be flexible, rigid, transparent, or opaque, depending on their chemical composition and structure.
The study of polymers, known as polymer science or polymer chemistry, explores their synthesis, properties, and applications in various fields such as materials science, medicine, engineering, and packaging.
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When trees are uprooted and the land left bare what happens to the rain water?
Answers
Explanation:
when trees are cut down, the bare surfaces left behind absorb more heat than the forest they replaced.And that heat helps draw air upward, pulling moist air in from nearby forested land that increases rainfall in the immediate area.
In which process are the products of the reaction glucose and oxygen? photosynthesis cellular respiration
Answers
Photosynthesis. I just got done with the test
The diagram below shows two strawberry plants.
Plant 2
Plant 2 is produced asexually from Plant 1. If the leaf cells of Plant 1 have 56 chromosomes, how many chromosomes will be
found in the leaf cells of Plant 2?
O 56
O 112
O 14
O 28
Plant 1
« Previous
Next
Answers
We often see soccer players suffering from muscle crime during the game. As a science student how would you explain this process to your friends
Answers
Answer: The a
Explanation:
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What is a similarity between the temperate climate zone and polar climate zone?
A. Both climate zones get less than 100 cm of precipitation in a year.
B. Both climate zones have average yearly temperature of around 25°C.
C. The polar and temperate climate zones have hot and dry summers.
D. They have hot summers and cold winters because they are close to the ocean.
Answers
Answer:
may be option c or b I think but I am not sure
Choose THREE examples that correctly predict the effect of a change on the ecosystem.
Answers
Answer:
Explanation:
so i think its:
1.Climate change, like the change in the weather.
2.habitat change like the change in the surrounding enviornment.
3.and population like with the animals :0
i hope this helps not sure on my third anwser though XD
The frequency of two alleles in a gene pool is 0.17 (A) and 0.3 (a.) assume that the population is in Hardy-Weinberg equilibrium calculate the percentage of heterozygous individuals in the population.
28% 1% 31% or 46%
Answers
The correct answer based on the calculation would be approximately 10.2% heterozygous individuals in the population. The correct answer is 10%.
To calculate the percentage of heterozygous individuals in a population in Hardy-Weinberg equilibrium, we can use the formula 2pq, where p represents the frequency of one allele (A) and q represents the frequency of the other allele (a).
Given that the frequency of allele A is 0.17 and the frequency of allele A is 0.3, we can calculate:
p = 0.17
q = 0.3
Now, we can substitute these values into the formula:
2pq = 2 \(\times\) 0.17 \(\times\) 0.3 = 0.102
Therefore, the percentage of heterozygous individuals in the population is 0.102 \(\times\) 100 = 10.2%.
Based on the given answer choices, none of them exactly match the calculated value.
The closest option is 1%, but it does not match the calculated percentage accurately. It's possible that there may be a typographical error or slight deviation in the provided answer choices.
The correct answer based on the calculation would be approximately 10.2% heterozygous individuals in the population.
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Question
The frequency of two alleles in a gene pool is 0.17 (A) and 0.3 (a.) assume that the population is in Hardy-Weinberg equilibrium calculate the percentage of heterozygous individuals in the population.
28% 10% 31% or 46%
in the evolution of land plants, there is: group of answer choices a trend for a decrease in the reliance on water to bring sperm to egg. all of these answers are correct. a trend for an increase in the size of the gametophyte phase. a trend for a decrease in the size of the sporophyte phase. a trend for a decrease in the importance of vascular tissue.
Answers
The evolution of land plants has seen a clear trend towards an increase in the importance of vascular tissue and a decrease in the importance of water to bring sperm to egg.
Here, correct option is A and D.
The gametophyte phase has become larger in size, while the sporophyte phase has become smaller in size. This has been primarily driven by the need to survive and thrive in a terrestrial environment. Vascular tissue is essential for providing the plant with the necessary support and transport of water, minerals and nutrients from the soil, as well as for the exchange of gases with the atmosphere.
Meanwhile, the smaller size of the sporophyte phase allows for increased protection from dehydration and desiccation, as well as for increased mobility and easier dispersal of pollen and spores. In order to fertilize the egg, land plants have adapted to utilize wind-borne pollen, rather than relying on water currents.
Therefore, correct option is A and D.
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