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.
why is there a much larger number of grass than snakes or hawks?
The prey will always out number the predator. This keeps the food chain going.
The prey will most times outnumber the predators it controls the energy levels of the food chain
What role do specialized cells perform in establishing homeostasis? Specialized cells work independently to perform their specific functions. Specialized cells work only as a team to perform the functions of the body. Specialized cells work independently as well as in a team to perform the functions of the body. Specialized cells in the body perform all the functions that are necessary to maintain homeostasis.
Specialized cells work independently as well as in a team to perform the functions of the body.
Specialize cells are cells that are similar in their organizational structure but differ in shape, size and designed to perform specific functions depending on their role in the body. Thus, each of these cell types are formed and operates differently, ensuring that the cell can carry out the necessary body function that it is intended to complete.
The reference point for the coordinate (-2, 3) is _____.
A. (x, y)
B. (0, 0)
C. (2, -3)
D. (3, -2)
Answer:
Option A
Explanation:
The point of reference for any co-ordinate point is defined by the co-ordinate frame. In a co-ordinate frame there are six degrees of freedom – three Cartesian co-ordinates and three angular co-ordinates.
Cartesian Co-ordinates – X, Y, Z
Angular Co-ordinates – Rx, Ry, Rz
Angular co-ordinates basically define the rotation of a co-ordinate point about that axis.
In the given question, the co-ordinate point is two dimensional. Hence, its reference point would be x,y
Hence, option A is correct
which of the following statements best describes what happens during the S phase of the cell cycle?
The S phase of the cell cycle is when DNA replication occurs, resulting in two identical copies of each chromosome (sister chromatids) and the duplication of the centrosome.
Explanation:The S phase, or synthesis phase, of the cell cycle involves the replication of DNA. This is significant because when a cell divides, it is essential that each new cell possesses an exact copy of the DNA. During the S phase, mechanisms result in DNA replication and the formation of two identical copies of each chromosome, known as sister chromatids, firmly attached at the centromeric region. The centrosome, which plays a vital role in dividing the chromosomes during mitosis or meiosis, is also duplicated during the S phase. In animal cells, centrosomes are associated with a pair of rod-like structures known as centrioles, which organize cell division. It is important to note that centrioles are not present in the centrosomes of several eukaryotic species, including plants and most fungi.
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During the S phase of the cell cycle, DNA replication occurs, resulting in identical pairs of DNA molecules known as sister chromatids. The centrosome, which aids in chromosome movement during mitosis, is also duplicated during this phase.
Explanation:The statement that best describes what happens during the S phase of the cell cycle is that it involves the process of DNA replication. In the S phase, DNA replication can proceed through the mechanisms that result in the formation of identical pairs of DNA molecules-sister chromatids-that are firmly attached to the centromeric region. The centrosome is also duplicated during the S phase, giving rise to the mitotic spindle, the apparatus that orchestrates the movement of chromosomes during mitosis.
The S phase is vital to the cell division process as it ensures that each daughter cell receives an identical and complete set of DNA. It should be noted that although DNA replication is the central event in the S phase, many other biochemically active processes occur including cell growth and protein synthesis.
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Aggression that develops when the animal is confused about what the owner wants is _______ aggression
Aggression that develops when the animal is confused about what the owner wants is conflict-related aggression.
Explanation:
Most behaviourists show the dominance aggressive action is normally referred as Conflict-related aggression. In general, when aggressive action passes to dog’s owner if dominant dog is internally confused or threatened the social position called dominance aggression.
There are many types of aggression, some are pain-related, territorial, conflict-related, etc. In that, conflict-related aggression is usually directed at a known person. It is happened by internal conflicts and presented in the context of interactions.
You breed together a bean plant that has really long, skinny beans and a been plant with really short, fat beans. The offspring end up having medium length, medium width beans. This would be an example of what type of inheritance.
Answer : incomplete dominance
Explanation:
For a given trait, there are basically two types of alleles that are present. One allele is the dominant one and the other is recessive. Generally , the phenotype of an individual corresponds to the one coded by the dominant allele when both the alleles are present for a given trait, that is if a heterozygous condition is there. However, in some cases the dominant allele is not completely dominant over the recessive allele.When the dominant allele is not completely dominant then under heterozygous condition the phenotype expressed is a blend of the phenotypes expressed by both the alleles. For e.g if a red flower is crossed with white flower and we get a pink flower we can say that the allele shows partial dominance over the other. Similarly in the given question, the dominant allele is partially dominant over the recessive allele thus, a blended phenotype appears in the progeny. Such type of inheritance is known as incomplete dominance, partial dominance or semi dominance.Which survivorship strategy is used by the type II species?
Answer:
Type II species include mice, birds and other similar organisms that have constant survivor ship rates as well as mortality rates during the whole period of their expected life/
If we look at survival ship curve of type II species as depicted in attached figure, we can see that it shows a constant slope and contains a straight line. The slope is in such a way that with the passage of time it decreases till reach zero.
The survival ship strategy used by type II species is this that they lie somewhere between semelparous ( comprised by single reproductive episode before death) and iteroparous (comprised by multiple reproductive cycles throughout the lifetime).
They have a probability of dying at constant level therefore they adopt a strategy in between of having more than one and less than multiple reproductive cycle throughout their life. In this way, they maximize their survival span.
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Dying in equal numbers throughout life
In a 1-dimensional coordinate system, which of these is an example of an object's position?
A. west
B. south
C. (4, -3)
D. 3 blocks east
Answer:
The correct option is D. 3 block east
Explanation:
According to the coordinate system, one dimensional coordinate system is a coordinate system in which there is only one dimension (X). For example, in the option D, there is only one dimension whose value is 3.
According to the coordinate system, a two coordinate dimensional system is a coordinate system in which there are two dimensions (X, Y). For example, in the option C, there are two dimensions 4 and -3.
Answer:
D. 3 blocks to the east
Explanation:
Calculating coordinates in a single mathematical dimension means plotting points along a single axis. How to calculate coordinates in a single dimension that starts from zero and then moves in the positive direction (1, 2, 3, 4, 5 ... etc), or in the negative direction (0, -1, -2, - 3, and so on) ))) which is right next to the origin.
From the above answer, 3 blocks to the east indicate from zero moving east which means left or positive direction so the next value is 3.
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What kind of density current is caused by a muddy, rapidly flowing mixture of sediment and water.
A turbidity current
it is sort of like a mud slide
If 8.0g of H2 reacts and 72g of H2O is produced how much O2 is consumed in the reaction
Answer:
64 g of O₂ is consumed in this reaction.
Explanation:
Mass of H₂O = 72 g
Mass of H₂ = 8 g
So, mass of O₂ consumed = mass of H₂O - mass of H₂ = 72 - 8 = 64 g
64 g of O₂ is consumed in this reaction.
Green and brown algae share many common features. Both have pigments for trapping sunlight and use photosynthesis for energy. Both store their food as sugars. Both have cell walls and plant-like bodies. However, their DNA suggests that they are not even remotely related to one another. Green algae and brown algae show __________________ evolution, since they look similar, but are not close relatives.
Answer:- Convergent
Explanation :-
Convergent evolution is the process in which the organisms that are not closely related evolve independently in such a way that they acquire similar traits due to similar environment in which they live or the ecological niche that they occupy. Such structures that result from convergent evolution are called as analogous structures, which perform similar function but have different origins. Convergent evolution can be distinguished from parallel evolution in the fact that in parallel evolution similar traits develop in different species which shared a common ancestor and hence, are closely related.Thus, since the brown and green algae look similar but are not close relatives they show convergent evolution.
Why do siblings look and behave differently from each other?
Why? Because each child has different traits and genes from each parent.
-TheOneandOnly003
Because they are not alike in the mind, and have different traits and they have different thoughts.
PLZ HELP
in what soil layer does an earthworm live? explain your answer
They live in the topsoil layer
Answer: Topsoil
Explanation: Topsoil is the layer with the most organic material, and the most aerated. Worms are actually a critical ingredient for the formation of this layer and if they go deeper, it is too dense for worms to burrow.
What happens after mRNA is transcribed? mRNA becomes part of the nucleolus. mRNA enters the cytoplasm and moves to a ribosome. mRNA leaves the cytoplasm through the cell membrane. mRNA remains in the nucleus and creates a protein
Answer:
mRNA enters the cytoplasm and moves to a ribosome.
Explanation:
What type of organic molecule will be created if alanine bonded with many other amino acids such as serine and glycine
Ans.
The organic molecules that formed by the amino acids are known as proteins. Each amino acid binds with other amino acid with the help of peptide bond between amino group of one amino acid and carboxylic group of another amino acid.
Thus, 'when alanine binds with other amino acids, such as with glycine or serine, a protein molecule will formed.'
Alanine bonded with amino acids like serine and glycine forms a polypeptide. This molecule is linked by peptide bonds through a dehydration synthesis reaction, and its sequence determines its structure and function.
Explanation:When alanine is bonded with many other amino acids, such as serine and glycine, the organic molecule created is a polypeptide. A polypeptide is a long chain of amino acid residues linked together by peptide bonds. Each amino acid is attached to the next by a dehydration synthesis reaction, releasing a molecule of water and forming the peptide bond. The sequence in which these amino acids are linked determines the primary structure of the polypeptide. For example, the sequence Gly-Trp-Ala is distinct from Ala-Trp-Gly because the location of the free amine and carboxyl groups would be different. The polypeptide can fold into complex shapes to form proteins which have variable functions, depending on their amino acid sequence and resultant three-dimensional structure.
Which important complexes form due to complementary binding at the enzyme active site
"Substrate product complex" is the important complex among the choices given in the question that is formed due to complimentary binding at the enzyme active site. The correct option among all the options that are given in the question is the third option or the last option. I hope the answer helped you.
what is the only native gymnosperm in kansas?
Answer:
Juniperus virginiana, that is also commonly known as Eastern redcedar, only native gymnosperm in kansas. It is an evergreen tree and is most found throughgout the state.
It can grow to a height of around 30 to 35 ft with huge branches of 12-15 ft.
The trees have great economical and commercial importance because they are used as source of habitat for birds and small animals. Also, Because of compact, dense and long-lived foliage they are excellent agents of windbreaks. They serve for the purpose of multiple row windbreak because they are very dense and effective even in a single row.
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Which change of state occurs at 100 °C when heat energy has been added to liquid water?
A. boiling
B. melting
C. freezing
D. condensing
A. boiling, because once liquid water is added with heat energy, it causes a reaction of water to bubble; common in cooking.
Which type of substances serves as a catalyst for reactions that break large food molecules into smaller useful molecules
Enzymes serve as catalyst that breakdown large substance into smaller molecules. Enzymes are proteins that function as biological catalysts to speed up chemical reactions in an organism.
Answer:
Enzymes.
Explanation:
Enzymes are the substances which play the role of catalysts in bio-chemical reactions. These enzymes are proteins and play a very important role in glycolysis stage of cellular respiration in which large food molecule like glucose is broken down into smaller useful substance like pyruvate. Some enzymes which participate in glycolysis are phosphofructokinase, enolase, pyruvate kinase etc. This pyruvate is further converted into even smaller molecules like Acetyl-CoA which enters the next stage of cellular respiration known as TCA cycle.
TCA cycle produces many intermediates (molecules) which are useful for other bio-synthetic pathways in the body. For example: Alpha-ketoglutarate which is an intermediate of TCA cycle is used in the synthesis of many amino acids like glutamine, proline, and arginine.
what happens during the lytic cycle?
a) The host cell makes copies of the virus.
b) The capsid becomes a cell membrane.
c) The viral DNA hides for years.
d) The virus evolves into a cell.
The correct answer is A. The host cell makes copies of the virus.
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Why do living organism need energy
they need energy because there cells need to reproduce
Living organisms need energy for growth, maintenance, and work to carry out essential functions. Energy is acquired through metabolic pathways and food webs.
All living organisms need energy to grow and reproduce, maintain their structures, and respond to their environments.
Organisms require energy for growth, maintenance, and to perform work such as movement, essential for their livelihood. Energy powers various processes at the cellular level, enabling organisms to assemble macromolecules and maintain their organized states.
Living things acquire energy through metabolic pathways, ATP, and food webs, illustrating how energy flows through ecosystems.
What is the major difference between the saturated and unsaturated zones
Saturated Zone
[ Completely full of water ]
Unsaturated Zone
[ The pore spaces are not completely full of water ]
The groundwater resource is divided into saturated and unsaturated zones. The saturated is characterized by the water filled in pores, whereas unsaturated is by incompletely filled space.
What are saturated and unsaturated zones?Saturated zones are the division of the groundwater that is found below the rocks and water table. The rocks and the pore space found in this zone are characterized by completely filed water spaces. The fractures and pores of this zone emerge in the groundwater.
The unsaturated zones are found above the saturated zones and just below the soil and land surfaces that are characterized by impartial water spaces. The pores and spaces of this zone are not totally filled with water.
Therefore, the saturated and unsaturated zones differ in water spaces.
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what features set early hominins apart from other primates
Bipedalism, tool making and use, and a larger brain were the key differences between early hominids and other primates.
Which of the following is not a problem associated with dams?
changes to waterways ecosystems.
economic advantages.
siltation behind the dam.
Dam maintenance and breaks.
Dams are not associated with economic advantages.
Dams DO associate with changes to waterway ecosystems, siltation behind the dam, and dam maintenance and breajs,
Select the correct part on the image.
Identify the cause of impure groundwater.
a. Tree
b. Consumption
c. Landfill
d. rocks and pebbles
Landfill seems to be a reasonable answer being as it is an area filled in with layers of garbage and soil. So i'd say c. I hope I helped :).
The importance of material transport in plants for photosynthesis
Material transport in plants, specifically through xylem and phloem tissues, is essential for effective photosynthesis. Xylem transports water and minerals to leaves, while phloem distributes photosynthates throughout the plant.
Importance of Material Transport in Plants for Photosynthesis
The process of photosynthesis is vital for the survival of plants and for the production of oxygen, which is essential for most life on Earth. For photosynthesis to occur effectively, plants must have a system to transport materials such as water, nutrients, and photosynthates (sugars) throughout their tissues. The phloem and xylem are specialized transport tissues found in vascular plants that play critical roles in the movement of these essential materials.
Role of Xylem and Phloem in Material Transport
The xylem primarily carries water and dissolved minerals absorbed from the soil up from the roots to the leaves. This water is crucial for photosynthesis, where it is used to split water molecules to release oxygen and electrons needed in the synthesis of glucose. The phloem, on the other hand, transports the soluble organic compounds made during photosynthesis from the leaves to various parts of the plant through a process called translocation. This ensures that photosynthates reach all parts of the plant for growth, energy, and storage.
Water and nutrient uptake often occurs through structures such as dead velamen, rhizoids, and living rhizodermis in plant roots. Moreover, the process of evapotranspiration and stomatal regulation are crucial in managing water transport and preventing water loss, while maintaining the balance necessary for photosynthesis to proceed efficiently.
Match the characteristics to the blood vessels.
Answer:
Arteries transport blood away to the different parts of the body from the heart. Arteries are the largest blood vessels in the whole body with elastic walls.
Hence arteries match with carries blood away from the heart and largest blood vessel in diameter
Capillaries take blood from various parts of the body. It exchanges nutrients, oxygen, and waste with tissues or cells. These are the smallest blood vessels.
Hence capillary matches with exchanges nutrients with tissues and single walled.
Veins transport the blood to the heart from the body. These vessels have a thin endothelial layer.
Hence Vein matches with carries blood to the heart and has a thin endothelial layer.
characteristics of different blood vessels:Artery: They carry blood away from the heart. They have thick, elastic walls to cope with the high pressure of blood from the heart. They are not very flexible and have a narrow lumen (central space).
Vein: They carry blood towards the heart. They have thinner walls and less elastic fibers than arteries. They have valves to prevent blood from flowing backward. They have a wide lumen (central space).
Capillary: They are the smallest blood vessels. They have a thin wall that only allows for the exchange of gases, nutrients, and waste products between the blood and body cells. They are found throughout the body and link arterioles and venules.
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What happens within the cell of a eukaryotic organism when an organelle is no longer functioning properly
Final answer:
When an organelle within a eukaryotic cell fails to function correctly, the cell may utilize autophagy to degrade and recycle the component, or it might trigger apoptosis if the damage is substantial, showcasing the cell's self-maintenance capabilities.
Explanation:
When an organelle within a eukaryotic cell is not functioning properly, the cell can employ several mechanisms to deal with the malfunction. One such mechanism is the autophagy process, where the cell degrades and recycles the damaged organelle. Alternatively, if the damage is too extensive, the cell may undergo programmed cell death, also known as apoptosis, to prevent harm to the organism as a whole. This showcases the cell's ability to maintain internal stability and health, ensuring its optimum functioning within the greater context of an organ or organism.
Autophagy serves as a quality control mechanism, allowing cells to remove malfunctioning organelles and recycle their components, thereby supporting cellular function and health. Similarly, apoptosis plays a crucial role in development and disease prevention by eliminating cells that cannot be repaired. This intricate balance of creating, maintaining, and, when necessary, decomposing cellular components underlines the sophistication of eukaryotic cells.
Which is true about the sequencing of the human genome and the Neanderthal genome?
-Humans have had only their mitochondrial genome sequenced, but Neanderthals have had only their nuclear genome sequenced.
-Both species have had only their mitochondrial genome sequenced.
-Both species have had their nuclear genome sequenced.
-Humans have had their nuclear genome sequenced, but Neanderthals have had only their mitochondrial genome sequenced.
Which of the following is not true about sedimentary rocks? A. They formed through compaction and cemintation B. They are made up of sediments C.they formed from igneous rock fragments D. They are not part of the rock cycle (15Points!)
The answer is D.
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Answer:
The correct answer option is D. They are not part of the rock cycle.
Explanation:
The rock cycle is the transitional process where the rocks of a particular type change and turn into rocks of another type.
The breaking down of different rocks like igneous andmetamorphic and then the cementation and compaction of these broken rock pieces forms the sedimentary rocks.
Therefore, saying that sedimentary rocks are not a part of the rock cycle would not be true.