What would explain the change in the size of a gummy bear after it is placed in regular water?
Sugar leaves the gummy bear, so it shrinks.
Water moves in to dilute the sugar in the bear, causing it to swell.
Particles in the water rush into the bear since the sugar is sticky.
Answer:
The correct answer is the second statement that it will swell.
Explanation:
The majority of the sugary candies get dissolve when kept in water. However, the gummy bears get larger instead of getting dissolved in the water due to the presence of gelatin in it. When the gummy bears are kept in water, the molecules of water, that is, the solvent get within the bear by the process of osmosis.
The molecules of water cross the semipermeable membrane and move into the region of higher solute region in order to equalize the concentration of solvent on both the sides of the candy surface.
In the beginning, less water and more gelatin are present within the gummy bear. However, to make things equal, the molecules of water are moved within the candy where there are lesser water molecules and larger molecules of gelatin present. This gelatin presence makes the gummy bear function like a sponge by absorbing water rather than getting dissolved in it.
Which of the following energy pyramids shows the correct placement of trophic
levels
The correct placement of tropic levels is shown by upright energy pyramid.
"The trophic level of an organism is the position it occupies in a food web."
Trophic level is described as the position of an organism in the food chain and ranges from a value of 1 for primary producers to 5 for marine mammals and humans. The method to determine the trophic level of a consumer is to add one level to the mean trophic level of its prey.
The lower level contains producers and the top level contains predators.
Energy pyramids is a graphical representation of the energy found within the trophic levels of an ecosystem." The producers have highest energy whereas the top-level organisms would have the lowest energy because energy decreases by 10% while moving from lowest to upper levels.
What happens to the number of species in a community as the area of that community increases?
As the area of a habitat increases, the number of species within that community also increases due to factors like resource availability and diverse microhabitats. This species-area relationship is critical for understanding biodiversity and its conservation.
Studies in ecology have shown a consistent trend indicating that as the area of a habitat increases, so does the number of species present within that community. This concept is captured by the species-area relationship, which is often depicted as a curve that demonstrates that larger areas tend to sustain more species. This can be due to a variety of factors such as greater availability of resources, more diverse microhabitats, and reduced risk of extinction due to a larger population size.
The diversity of a community refers to both the number of species (species richness) and their relative abundance within a given habitat. Conversely, when habitat is lost and the area decreases, the number of species supported by that habitat also declines, as shown in species-area extinction estimates. Therefore, protecting and preserving large natural habitats is essential for maintaining biodiversity.
It is also essential to note that populations do not live in isolation and that the dynamic interactions within a community can shape its overall structure and function. This has been observed in various ecosystems, ranging from the low-diversity glaciers of Antarctica to the highly diverse tropical rainforests.
According to this species-area curve for reptiles and amphibians on a west indian archipelago, a 50% decrease in area will change the number of species living in the remaining area by
According to this species-area curve for reptiles and amphibians on a West Indian archipelago, a 50% decrease in area will change the number of species living in the remaining area by -10%. A graph depicting the relationship between the size of a region and the biodiversity that it can support is called a Species-area curve.
a cell placed in a solution shrinks by the process of osmosis. what kind of solution is outside the cell?
disturbing an area of an ecosystem where an organism lives is called
What is nirvana? question 2 options: 1) cessation of suffering 2) right livelihood 3) reincarnation 4) meditation?
How are the two location different in regards to food/drink religion, customs etc?
Type of material transport that requires energy from the cell
*endocytosis
*osmosis
*facilitated diffusion
*diffusion
Which dosage form is formulated to mask an objectionable taste of a medication?
What do man eating fish use for barbeques?
What percent of the motor cortex of the brain is devoted to the muscles of the hand?
The hypothalamic-pituitary-end organ progression of hormones is best represented by _____________.
Is glucose aversion a learned response, or is it inherited?
Taste aversion combines learned and inherited elements, typically after a single negative experience with a food that coincides with illness. Research by Garcia and Koelling highlights its evolutionary benefits for survival. Understanding these mechanisms aids in managing treatment-related food aversions in patients.
Explanation:Glucose aversion, more commonly referred to as taste aversion, is an intriguing physiological response that combines both learned and inherited elements. It is a type of conditioning in which an interval of several hours may pass between the ingestion of a substance and a subsequent negative reaction, such as nausea or illness. Individuals can develop a strong aversion to a particular taste after just one encounter with a food that coincides with illness, even if the illness is not caused by the food itself.
Research in this area, most notably by Garcia and Koelling, has shown that this can be a result of an evolutionary adaptation designed to help organisms quickly avoid harmful foods, contributing to species survival through natural selection. This form of learning is powerful because it can help organisms avoid stimuli posing real dangers, even if the association between the consumed food and the negative stimulus has a long time lapse. Human behavior, however, also showcases the cultural and environmental influences on food preferences and aversions beyond just innate mechanisms.
Understanding the mechanisms behind taste aversion can be beneficial in helping individuals, such as cancer patients, manage treatment-induced nausea. The association between taste and illness in these cases can complicate the intake of nutritious foods necessary for recovery. Consequently, figuring out ways to dissociate these cues could improve patient care and outcomes.
When chromosomes exchange genetic material during meiosis choose?
Spotting what kind of bird during the daytime foretold death?
(Select all that apply.) Choose the operations conducted by the "cell factory."
1.duplicate itself
2. interpret coded information
3.selective exchange
4.perform maintenance
5.decompose chemicals
6.synthesize chemicals
7.convert energy
The cell factory conducts operations such as duplicating itself, interpreting coded information, selective exchange, performing maintenance, decomposing chemicals, synthesizing chemicals, and converting energy, which are all essential for cell growth, division, and environmental response.
Explanation:The 'cell factory' conducts several operations akin to a miniature industrial complex. Some of these operations include:
Duplicating itself - akin to 'copying' the factory for growth or repair.Interpret coded information - similar to 'reading' blueprints to create specific products.Selective exchange - employing a 'quality control' system for importing materials and exporting products.Perform maintenance - ensuring the machinery is functioning properly.Decompose chemicals - breaking down raw materials into usable parts.Synthesize chemicals - constructing new products from smaller components.Convert energy - like converting power sources into energy that fuels the factory's operations.These operations are critical for the survival and proper functioning of cells, allowing them to grow, divide, and respond to their environment. They involve metabolic processes like catabolism and anabolism, where cells break down complex chemicals for energy and build complex molecules from simpler ones, respectively.
Final answer:
The cell factory performs several operations: it duplicates itself, interprets coded information, engages in selective exchange, performs maintenance tasks, decomposes and synthesizes chemicals, and converts energy. These activities are central to cellular metabolism and maintaining life.
Explanation:
Operations Conducted by the Cell Factory
The concept of a “cell factory” refers to the various complex activities and processes that occur within a cellular environment to maintain life. The operations the cell conducts include:
Duplication of itself: Cells have the capacity to reproduce by duplicating their DNA and dividing, which is a part of the cellular life cycle.
Interpreting coded information: Cells interpret genetic code from DNA to synthesize proteins, which is essential for executing various cellular functions.
Selective exchange: Cells control the import and export of molecules, thereby maintaining homeostasis through selective permeability of the cell membrane.
Performing maintenance: Cells conduct various repair and maintenance processes to sustain a healthy state and respond to stress.
Decomposition of chemicals (catabolism): Breakdown of complex molecules into simpler ones, which often releases energy.
Synthesizing chemicals (anabolism): Creation of complex molecules from simpler ones, which requires energy.
Converting energy: Cells convert energy from one form to another, as in the mitochondria where ATP is produced as usable energy for cellular processes.
These operations are fundamental for the cell to fulfill its role in the organism, and they form the basis of cellular metabolism, including other metabolic processes, cell organization and biogenesis, protein metabolism, and transport.
During which process is mRNA converted into a sequence of amino acids for protein production?
A. transcription
B. translation
C. DNA replication
D. mRNA synthesis
Answer:
Translation
Explanation:
During the process of translation, the mRNA is converted into a sequence of amino acids for protein production, which is option B as it is the second step in gene expression that takes place in organisms.
During the process of the translation, mRNA molecule bind to the ribosome (70s or 80s), which moves along the mRNA strand. The ribosome "reads" the mRNA sequence especially the triplets sets or three nucleotides, known as codons. Each codon corresponds to a specific amino acid, according to the genetic code that express the trait.
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How many chromosomes would a cell have during metaphase i of meiosis if it has 12 chromosomes during interphase?
Damian grew a plant from a leaf cutting. How did the plant reproduce?
Answer:
Vegetative reproduction
Explanation:
Vegetative propagation is the process of growing a new plant from parts of another plant.
What is vegetative propagation?Vegetative propagation is the process of growing a new plant from parts of another plant. This can be done in several ways, the most common being cutting. Cutting can allow for the plant to develop roots in the part that was cut off.
Plants can reproduce vegetatively by using their stems, roots, and leaves. It is an asexual reproductive method used by plants.
In order to improve the plants, horticulturists actually use propagation techniques like grafting and budding. Learn more about vegetative reproduction now.
Therefore, Vegetative propagation is the process of growing a new plant from parts of another plant.
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When cells produce polymers, such as carbohydrates, lipids, or proteins, chemically bonding the monomers together results in the formation of A) a water molecule at each bonding site. B) strong hydrogen bonds between the monomers. C) a diatomic oxygen molecule at each bonding site. D) the release of carbon dioxide into the atmosphere.
Answer:
The answer is A : a water molecule at each bonding site.
Explanation:
Formation of polysaccharide is a condensation reaction i.e a molecule of water in produced every time two glucose molecule link together. Similarly formation of peptide bond between amino acids is also a condensation reaction. In fact because polysaccharide formation involves loss of several water molecules its easy to store condensed bulk like glycogen in animals and starch in plants compared to several monosaccharide glucose units.
If there is no immigration or emigration in a population and the population size increases, which statement is true?
_____ is the part of the autonomic nervous system that calms the body.
A plant species lives in an area with limited sunlight. Which physiological adaptation would be most useful to the plant?
b) Large leaves are the most beneficial adaptation for plants in areas with limited sunlight because they increase the surface area available for photosynthesis. Therefore, large leaves enhance the plant's ability to thrive in such environments.
The most useful physiological adaptation for a plant species living in an area with limited sunlight is large leaves. Large leaves increase the surface area available for photosynthesis, allowing the plant to capture more sunlight even when it is scarce.
Colorful flowers: Primarily used to attract pollinators, this adaption does not help in capturing sunlight.Large leaves: Increase surface area for photosynthesis, making it easier to capture the limited sunlight available.Deep roots: Useful for accessing water deep in the soil, but not helpful for sunlight capture.Thin cuticle: Reduces water loss but does not aid in capturing sunlight.Overall, large leaves are the optimal adaptation for maximizing sunlight absorption in areas with limited sunlight.
complete question:
A plant species lives in an area with limited sunlight. Which physiological adaptation would be most useful to the plant?
A. colorful flowers
B. large leaves
C. deep roots
D. thin cuticle
The harmonic law would suggest that Neptune will take ____ to orbit the sun than mercury.
equal amounts of time
Which hormone directs essentially all events of the absorptive state?
The gap that can be from 60nm to 100nm, seen in this junction between the nerve and the muscle is known as the
What role does DNA play in the transmission of genetic information?
during which stage of the cell cycle does the cell rest, grow, and copy DNA and organelles?
The cell cycle or cell-division cycle is the series of events that take place in a cell leading to its division and duplication of its DNA (DNA replication) to produce two daughter cells. In bacteria, which lack a cell nucleus, the cell cycle is divided into the B, C, and D periods. The B period extends from the end of cell division to the beginning of DNA replication.
Though they are constantly changing, ecosystems are naturally