12) B. The organism would suffer as its cells would be less able to provide the energy needed to carry out life functions.
13) D. The central vacuoles in the cells lose water and can no longer help support the cells.
14) A. It acts as a framework inside the endoplasmic reticulum and keeps it from collapsing.
15) D. The cell's energy level will diminish as the enzyme decreases.
16) C. Whales are able to conserve oxygen better than humans.
17) A. Glycolysis
18) i dont know this one but maybe B
19) B. It is turned into more chlorophyll for the plant.
20) B. The chloroplasts would be unable to generate ATP.
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Final answer:
Cell structure and transport refer to the components of cells and the mechanisms they use to move substances across the cell membrane. This includes the semi-permeable cell membrane structure, passive and active transport processes, and role of the cytoskeleton in cell organization and movement.
Explanation:
Cell Structure and Transport
The study of cell structure and transport mechanisms is a fundamental aspect of high school Biology. Cells are the basic units of life, and understanding their structure and function is essential for grasping wider biological concepts. The cell membrane plays a crucial role in maintaining a cell's environment through its selective permeability, which allows certain substances to pass while excluding others, contributing to cell homeostasis.
Components of Cell Structure
Key components include the cell membrane, cytoplasm, cytoskeleton, and in eukaryotic cells, organelles such as the nucleus, mitochondria, and endoplasmic reticulum. The cytoskeleton helps organize the cell, enables cell movement, and transports materials.
Transport Across Cell Membranes
Transport mechanisms across the cell membrane include passive transport (such as diffusion and osmosis), which does not require energy, and active transport, which does require energy to move substances against their concentration gradient. Additionally, bulk transport methods like endocytosis and exocytosis move large particles or volumes.
Does the grasshopper or caterpillar undergo incomplete metamorphosis
The phenomenon called incomplete metamorphosis is seen in grasshopper.
Explanation:The total number of the stages act as major difference between incomplete and complete metamorphosis. The former has 3 stages namely egg, nymph and adult, whereas the latter has 4 stages namely egg, larva, pupa and adult.
The process of incomplete metamorphosis is seen in insects such as grasshopper, termites, true bugs, praying mantis etc. The caterpillar shows complete metamorphosis at the end of which adult butterfly emerges out.
In incomplete metamorphosis, initially, the insect comes out of egg. Then it grows and becomes nymph which is a smaller version of adult insect, its physical appearance is very vulnerable due to its young age. Then it grows into a adult insects and lives till its end.
From the earths atmosphere carbon dioxide is used by plants,algae, and Cyanobacteria during the process of?
Photosynthesis takes in the carbon dioxide produced by all breathing organisms and reintroduces oxygen into the atmosphere. Photosynthesis is the process used by plants, algae and certain bacteria to harness energy from sunlight and turn it into chemical energy
what factor affects the amount of air resistance experienced by an object?
A)time in contact with the air.
B) weight of the object.
C)distance traveled by the object.
D)surface area of the object.
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Scientists use potassium-argon method to determine the age of a rock sample. Three separate tests showed the rock to be 1.3 billion years old. However, scientists know the rock must be at least 2.5 billion years old based on the rocks around it. How is this possible?
The radiometric dating was off due to loss of daughter isotopes.
The relative dating was off due to the loss of daughter isotopes.
The relative dating was done incorrectly.
The radiometric dating was done incorrectly.
Answer:
Option C, The relative dating was done incorrectly.
Explanation:
As it is mentioned here in the description that scientist know that the actual age of rocks must be 2.5 billion years and this age of the rock must have been derived through some methodology of radioactive dating. Now since the potassium-argon method was used three times and it depicted the same result every time stating that the age of rocks is 1.3 billion years. Therefore there are high chances that earlier method used that estimated the age of rock as 2.5 billion years must be wrong.
The swelling and possible bursting of the cell is a result of which biological process?
The swelling and possible bursting of the cell is a result of which biological process? Osmosis
the energy role of a grizzly bear is that of a(n) ________ because it cannot make it's own food
The energy role of a grizzly bear is that of a consumer because it cannot make its own food.
Grizzly bears are considered heterotrophs as they derive their energy from consuming other organisms, both plants and animals. They depend on the environment for food, and not on photosynthesis. A distinct energy-related physiological process observed in grizzlies is hibernation during which they depend on stored fat for energy.
Explanation:The energy role of a grizzly bear is that of a heterotroph because it cannot make its own food. In biology, animals that cannot produce their own food are termed as heterotrophs. They derive their energy from external food sources. Grizzly bears, as an example, are omnivores and consume both plants and animals for sustenance. Thus, they depend on the environment to provide them with nourishment rather than photosynthesizing, similar to plants or certain microbial organisms.
Another important life cycle aspect of grizzly bears related to their energy consumption is hibernation. Before winters, they enter a phase of hibernation during which they rely on their stored fat reserves for energy. This process is not just random; there are certain environmental cues that trigger this physiological change in grizzly bears. Hibernation allows them to survive through winters when food resources are scarce.
Bears that encounter humans for food sources are more inclined to intrude human habitations, indicating an adaptive behavior in search of energy (food) sources.
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How is pollen transferred from the male reproductive structure to the female in gymnosperms and angiosperms
Gymnosperms produce male and female cones while angiosperms produce stamens and pistil in the same flower as the male and female reproductive parts. ... In angiosperms, pollen grain is transferred from the anther to the pistil by wind, insects oranimals by the attraction to flowers.
The process of transfer of pollen grains from the male reproductive structure to the female in gymnosperms and angiosperms is known as pollination. Pollination occurs through different agents.
What is pollination?
Pollination is the process which includes the transfer of pollen grains (male gametophyte) from the male reproductive structure (anther) to the female reproductive structure (stigma). This is an important step of reproduction in plants.
Gymnosperms produce male and female cones while angiosperms are the plants which produce stamens and pistil in the same flower as the male and female reproductive structures. In angiosperms, the pollen grain is transferred from the anther (male gametophyte) to the pistil (female gametophyte) through the help of different agents called pollinators such as wind, insects or animals by attraction to the flowers.
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dune grasses help hold the sand of the sand dunes in place. the grasses can survive in high winds and flooring. what feature of dune grasses helps to keep the plants in place?
Dune grasses have extensive root systems that anchor them firmly into the sand, helping to prevent erosion even in high winds and shifting sands.
Sand dunes and soil are stabilized by dune grasses, which have extensive root systems. Deep, fibrous root systems of dune grasses help to anchor the sand and stabilize the soil. Many perennial grasses have greater underground root systems than aboveground ones, which allows them to absorb huge amounts of water and improve soil stability. Sand dunes are formed and maintained with the assistance of grasses, whose roots stabilize the soil and lessen erosion.What is true about a meal of a piece of salmon with garlic butter? high in fiber, low in protein. No vitamin B12, no iron, low in carbohydrates
its low in carbohydrates :)
Answer: It is low on carbohydrates (C)
Explanation:
Sean, a graduate student, is attempting to repeat a published experiment. He does not find the same results that the authors found. This could be the result of Sean's A) peer review B) scientific error C) scientific misconduct D) professional practice
Answer:
Your correct answer is B) not A)
Explanation:
Here's why:
Sean, a graduate student, is attempting to repeat a published experiment. He does not find the same results that the authors found. This could be the result of Sean's scientific error.
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All organisms are dependent on a healthy carbon dioxide-oxygen balance. Photosynthesis and cellular respiration are key processes in maintaining this balance. Your class is conducting a lab experiment to investigate the relationship between photosynthesis and cellular respiration by observing how carbon dioxide cycles through a biological system. To conduct the experiment, each group set up four test tubes containing 30 ml distilled water and 3 ml of bromothymol blue. Bromothymol blue is a pH indicator that changes from blue (alkaline) to yellow (acid). When carbon dioxide dissolves in water, it produces carbonic acid, turning the indicator from blue to yellow. The level of CO2 was inferred from a change in the indicator color.
A snail, elodea (aquatic plant), or both were added to the tubes and they were stoppered. Tubes were placed under a grow light for 24 hours and the results recorded. The test tubes were then covered for 24 hours to produce a dark environment and the results recorded. Which statement best explains the change in Test Tube D from the light setup to the dark setup.
A) The rate of photosynthesis decreased in the dark, thus the elodea used less CO2. The elodea and snails produced less CO2 through cellular respiration, causing the CO2 to be in equilibrium, making the solution more neutral (yellow).
B) The rate of photosynthesis decreased in the dark, thus the elodea used less CO2. The elodea and snails continued to produce CO2 through cellular respiration, raising the level of CO2 in the tube, causing the solution to become more acidic (yellow).
C) The rate of photosynthesis decreased in the dark, thus the elodea used more CO2. The elodea and snails continued to consume CO2 through cellular respiration, lowering the level of CO2 in the tube, causing the solution to become more basic (yellow).
D) The rate of photosynthesis decreased in the dark, thus the elodea used less CO2. The elodea and snails continued to consume CO2 through cellular respiration, raising the level of CO2 in the tube, causing the solution to become more acidic (yellow).
Eliminate
The correct answer would be option B
The rate of photosynthesis in the plants during the dark(night) slows down but the process of cellular respiration does not depends on the light to take place.
The snail and the plant produced carbon dioxide by the process of cellular respiration at night but it was not consumed by the plants by the process of photosynthesis.
Due to this, carbon dioxide got accumulated in the solution and turned the solution more acidic ( solution turned from blue to yellow).
Final answer:
Test Tube D showed more acidity (yellow color) in the dark setup due to the decrease of photosynthesis in the absence of light, while respiration continued, resulting in higher CO₂ levels and an acidic environment.
Explanation:
The correct answer to explain the change in Test Tube D from the light setup to the dark setup is B) The rate of photosynthesis decreased in the dark, thus the elodea used less CO₂. The elodea and snails continued to produce CO₂ through cellular respiration, raising the level of CO₂ in the tube, causing the solution to become more acidic (yellow).
In the presence of light, elodea performs photosynthesis, utilizing CO₂ and releasing O₂. At the same time, both elodea and the snail respire, which consumes O₂ and produces CO₂. However, during the dark, photosynthesis does not occur because light is a necessary component for the process of photosynthesis. Nevertheless, both organisms continue to respire in the dark, contributing to the increase in CO₂ levels that leads to a more acidic environment indicated by the yellowing of the bromothymol blue solution.
Populations of blue-winged warblers, a type of bird, migrate south in the winter and return to Canadian breeding grounds in the spring. As global temperatures have increased due to climate change, spring has started arriving in the warbler's breeding grounds earlier in the year, before the warblers return. Warblers now arrive at their breeding grounds too late to select ideal nesting sites and to feed on important early-spring food sources. How are populations of blue-winged warblers most likely to be affected by the earlier arrival of spring?
For the most part the birds will be negatively affected by the early spring, they won't have the food they need and because they missed finding ideal nesting spot one of two things will happen, they will either pick an unsafe nesting area which can result in their young being hurt or even themselves, and/or they won't breed at all and because of this the Warbler population will decrease due to low mating rates. Eventually, the birds will evolve in a way and start coming back from their migration earlier than previous generations and thus they will have access to the food and nesting areas that they need and the population will spike again.
I hope this helps you out a little!
Answer:
Populations will decline since individuals will be less likely to successfully reproduce. Hope this helped
Explanation:
What are the differences between ionic bonds and covalent bonds?
The main difference between ionic and covalent bonds is the sharing of electron pairs and atoms. In covalent bonds, atoms are attracted towards each other while in ionic bonds; electron pairs are shared between atoms.
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Question:Which image shows the formation of sleet? I will be putting the answer choices up above as a picture.
Sleet formation involves raindrops falling through a cold layer of air near the ground, turning into ice pellets before reaching the surface. The correct image would show this process sequentially from above the ground to contact with the ground.
Explanation:Without the provided images, it's important to understand what the process of sleet formation entails. Sleet refers to a form of precipitation that occurs when raindrops fall through a layer of freezing air near the ground, turning them into small ice pellets before they reach the surface. The image that correctly depicts the formation of sleet would typically show a sequence where the raindrop freezing process begins above the ground and completes before the drops hit the ground. Various stages of the freezing process should be clearly illustrated.
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identify the main term for removal of gallbladder calculi by means of an open procedure
Laparoscopic Cholecystectomy
Gallbladder is known to be pear shaped organ that is found beneath the right side of the liver. It functions by collecting and concentrating the bile (digestive liquid ) produced by the liver. However, Laparoscopic Cholecystectomy (Laparoscopic Gallbladder Removal ) is known to be a surgical procedure performed for the removal of gallbladder which involves the use of small incision instead of large one.
The main term for the removal of gallbladder calculi by means of an open procedure is cholecystectomy.
Explanation:The main term for the removal of gallbladder calculi by means of an open procedure is cholecystectomy. This surgical procedure involves the complete removal of the gallbladder to treat conditions such as gallstones. This may be done due to gallstones, inflammation, or other gallbladder-related issues. Often performed laparoscopically, the surgeon makes small incisions and uses a camera for visualization.
Cholecystectomy is a common and generally safe procedure, and the body can adapt to the absence of the gallbladder. While patients may experience changes in digestion, the procedure aims to alleviate symptoms and prevent complications associated with gallbladder disorders.
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The diagram shows a process used to produce apple trees with the desired trait of sweeter fruits.
Which labels should be used to complete the diagram?
A X: Enzymes
Y: Apple tree DNA
B X: Enzymes
Y: Gene for sweeter fruit
C. X: Apple tree DNA
Y: Gene for sweeter fruit
D. X: Gene for sweeter fruit
Y: Apple tree DNA
Answer:
gene for sweeter fruit
The answer is option B:
X: Enzymes
Y: Gene for sweeter fruit
The labels that should be used to complete the diagram are 'X: Enzymes' and 'Y: Gene for sweeter fruit'. Enzymes are involved in modifying the apple tree DNA, and the gene denoted as Y is responsible for the desired trait of sweeter fruit.
The labels that should be used to complete the diagram are:
X: Enzymes
Y: Gene for sweeter fruit
This represents the process of genetic modification, where enzymes are used to insert a specific gene (for sweeter fruit) into the DNA of an apple tree.
Enzymes are biological molecules that catalyze chemical reactions, and in this process, enzymes are involved in modifying the apple tree DNA to produce sweeter fruits. The specific gene responsible for the desired trait of sweeter fruit is denoted as Y.
Which factor most strongly influences the kinds of plants that can grow in an area?
The climate of the area - APEX
Answer:
the areas climate
Explanation:
what are biotic and abiotic factors of cellular respiration
Abiotic- this refers to non living physical and chemical elements in the ecosystem( soil, water, sunlight, air, and minerals).
Biotic- this refers to living or once-living organisms in the ecosystem.
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The equation shows cellular respiration during cellular respiration glue close combined with oxygen to form carbon dioxide water in ATP what happens to the energy and bonds and glue close
C6H1206 + 602 + 6H20 +ATP
Answer:
During the process of cellular respiration,that comprises three further processes (glycolysis, Kreb cycle and electron transport chain) the energy present in glucose molecules is transformed into ATP.
Explanation;
Cellular respiration is a process in which sugar breaks down to produce H2O and carbon di oxide, and during the same process energy in the form of ATP packets is formed that can be later on used by an organism to perform day to day activities.
Cellular respiration is the process during which energy present in the bonds of glucose are transformed into the form of ATP. ATP is the molecule that stores energy in its phosphate (PO4) bonds.
Hydrolysis of one phosphate bond of ATP releases almost 7.3 kJ of energy. Similarly, the hydrolysis of second phosphate bond of Adenosine mono phosphate releases around 3.4 to 3.6 kJ of energy. Therefore, the total amount of energy released from ATP hydrolyses is around 18 to 18.2 kJ of energy!
This energy is all that living organisms need to fulfill their cellular and physical work requirements.
Hope it help!
Answer:
Cellular respiration refers to the set of metabolic reactions taking place in a cell in order to harness energy from the food (glucose) and convert it to more usable form which is ATP (adenosine triphosphate).
The bonds of glucose and oxygen are broken, added, and are rearranged to form carbon dioxide, water and ATP.
The glucose is oxidized through various steps such as glycolysis, pyruvate decarboxylation, and Krebs cycle.
All the NADH₂ and FADH₂ formed by the above reactions undergo electron transport chain which causes oxidative phosphorylation of ADP to form ATP.
The summary of cellular respiration is shown in the form of the chart below.
Why is it important that cells formed by mitosis have the same number of chromosomes as the parent cell?
Mitosis refers to a procedure of producing more cells, which are genetically similar to the parent cell. It plays an essential role in the development of embryos, and it is essential for the development and growth of the bodies as well. Mitosis generates novel cells and substitutes the cells, which are lost, old or destructed.
In mitosis, a cell differentiates to produce two similar daughter cells. It is essential that the daughter cells exhibit a copy of each chromosome, so the procedure includes copying the chromosomes initially and then carefully distinguishing the copies to provide each new cell a complete set.
The oldest rocks found on Earth are 3.96 billion years old. However, scientists believe the Earth is about 4.6 billion years old. What evidence supports this idea? Choose all that apply.
The Earth is 4,54 billion years old. This age has been determined with the radioactive dating technique. The precise decay rate of radioactive elements is used as a clock: the number of daughter products in one rock indicates its age.
The oldest meteorites ever dated in the Solar System are 4,56 billion years old, the oldest minerals on Earth are 4,4 billion years old, and the oldest rocks on Earth are 4 billion years old. These ages are very consistent because the meteorites had to form before the accretion of our planet, and the Earth had to cool down before the first minerals could crystallise.
The Solar System was formed around 4.6 billion years ago, out of the collapse of a dense cloud composed of dusts and gases. Meteorites, which are the very components of our planets (through the process of accretion), are the remnants of the Solar System’s origins. Dating meteorites thus allows us to give a lower age to the Solar System (4,56 billion years old).
Which statement best explains why cellular respiration in plants and other organisms is dependent on photosynthesis
Cellular respiration depends on two chemical reactants; glucose and oxygen. Glucose and oxygen are made available to plants and animals for cellular respiration thanks to photosynthesis. Photosynthesis is the chemical reaction that uses solar energy to convert water and carbon dioxide into glucose and oxygen. Without photosynthesis, the available glucose and oxygen on the planet would quickly deplete to the point that life could not be sustained on Earth.
Photosynthesis produces glucose and oxygen, which are required for cellular respiration. Therefore, without photosynthesis, cellular respiration in plants and other organisms could not occur.
Explanation:The dependency of cellular respiration on photosynthesis in plants and other organisms is explained by the fact that photosynthesis produces the essential materials required for cellular respiration. Specifically, photosynthesis produces glucose and oxygen, which all organisms use to perform cellular respiration. Photosynthesis forms an energy link with cellular respiration.
In the process of photosynthesis, plants convert light energy into chemical energy, creating glucose and releasing oxygen into the atmosphere. This glucose and oxygen then become the fuel for cellular respiration, a process where energy is released from glucose and used to create ATP, a molecule that powers cellular activities.
Therefore, without the glucose and oxygen produced by photosynthesis, cellular respiration could not occur. This signifies the intricate relationship and dependency between photosynthesis and cellular respiration, highlighting the vital role they play in maintaining life on Earth.
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1. hormone secretion
2. metamorphosis
3. fertilization
4. cell division
some one celled organisms reproduces by binary fission which is a process of cell division. The answer is 4.
What type of storm is shown in the graph
Penicillin is an antibiotic that was discovered in 1928. Today many species of bacteria have acquired resistance to penicillin. This adaptation occurred as a result of
Answer:
THE ANSWER IS C ( genetic mutation) ON USATestPrep because...
Explanation:
Many bacteria have acquired the ability to produce an enzyme called penicillinase, which destroys penicillin. All enzymes are proteins. The ability to produce the new protein penicillinase came from a change in the bacterial DNA: a genetic mutation.
Why are marshes more productive than bogs
The acidity of the soil-peat inhabits diversity of plant species compared to marshes.
An important distinction to bogs would be that marsh soils are more typically neutral in the pH scale, to slightly more basic.
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Answer:
The high nutrient enriched soil, long growing period and sufficient sunlight exposure are major factors which makes the marshes more productive than the bogs.
Explanation:
Marshes are one of the highly productive ecosystems just like the swamps. This is because of the following reasons –
a) High nutrient depositions due to the flow of nutrient enriched sediments of river though the marsh area
b) They have long growing period
c) Sufficient amount of sunlight exposure.
While bogs remain water choked most of time in a year and thus decaying plants and leaves form an important part of its soil. Such soils have low oxygen and nutrient content.
Which of these best explains why Earth’s inner core is a solid?
A) Low pressure due to other layers forces the particles to stay closer.
B) High pressure due to other layers forces the particles to stay closer.
C) High temperature due to other layers keeps the particles close together.
D) Low temperature due to other layers keeps the particles close together.
I believe your answer is C)High temperature due to other layers keeps the particles close together.
sorry if im wrong
Answer:
The answer is B: High pressure due to other layers forces the particles to stay closer.
Explanation: Scientists believe the intense pressure of the other layers pushing down on top of it forces the inner core to remain a solid.
What does this symbol represent
It represents a cold front
A population of snakes that eat small rodents enters a new habitat. In the new habitat, there are many species of rodents, and their populations are high because there are few natural predators. What will most likely be the effect on the genetic variation of the snake population?
Genetic variation will increase because of a selective pressure.
Genetic variation will increase because of a new habitat and food source.
Genetic variation will decrease because of a selective pressure.
Genetic variation will decrease because of a new habitat and food source.
2nd option, Genetic variation will increase because of a new habitat and food source
Tons of food (rodents) and they would have no competition for the rodents in the new habitat
Answer:
The correct answer is the 2nd statement.
Explanation:
Genetic variation signifies the naturally taking place genetic differences, which prevails between the individuals of similar species. Genetic variation is essential as it permits the individuals to thrive better in a given surrounding.
In the mentioned case, when the snakes enter a novel habitat, they came across a condition where there are lesser natural predators and because of this they had enough food and less competition. Therefore, no selective pressure is exhibited to affect genetic variation.
Additionally, in the availability of enough food and non-existence of competition, the genetic variation will only enhance. Thus, in the mentioned case, the genetic variation of the snakes enhances because of the food source and new habitat.
The process that produces a similar appearance among unrelated groups of organisms is A. coevolution. B. mass extinction. C. punctuated evolution. D. convergent evolution.
Answer:
C. Convergent evolution.
Explanation:
Convergent evolution is the independent evolution of similar features in species of different periods or epochs in time. Convergent evolution creates analogous structures that have similar form or function but were not present in the last common ancestor of those groups.