What is the usual mode of stimulus transfer in neuron-to-neuron interactions?
The naturally occurring, generally low level sound produced by an environment is called
what Closely stacked, flattened sacs (plants only)
The closely stacked, flattened sacs found in plants are called thylakoids and they are an important component of the chloroplasts. Thylakoids are responsible for housing the chlorophyll molecules.
Explanation:The closely stacked, flattened sacs found in plants are called thylakoids and they are an important component of the chloroplasts. Thylakoids are responsible for housing the chlorophyll molecules, which are essential for photosynthesis, the process by which plants convert sunlight into energy.
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Closely stacked, flattened sacs in plants refer to thylakoids, which are found within chloroplasts – vital for photosynthesis. Stacks of these sacs are called grana, and the fluid surrounding them within the inner membrane of the chloroplast is the stroma.
Explanation:The closely stacked, flattened sacs you're asking about are a component of plant cells known as thylakoids. These are found within chloroplasts that are key to photosynthesis. Notably, chloroplasts, like mitochondria, have outer and inner membranes.
However, within the space enclosed by a chloroplast's inner membrane is a set of interconnected and stacked fluid-filled membrane sacs known as thylakoids. Each stack of thylakoids is referred to as a granum (plural = grana). The fluid enclosed by the inner membrane surrounding the grana is known as the stroma.
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When the urinary bladder becomes stretched, there is an increase in the frequency of action potentials traveling from..?
Diffusion is the movement of molecules from regions of ____________ concentrations to regions of ____________ concentration until ____________ is reached.
Answer:
The answer is 1)High 2)Low 3)Balanced.
Explanation:
Diffusion is an irreversible physical process, in which material particles are introduced into a medium in which it was initially absent. Diffusion is the process in which atoms or molecules move from a region of high concentration to an area of low concentration. In most cases, diffusion occurs in gases and liquids. During diffusion, the movement of matter continues until there is a balanced distribution.
Which of these is an example of recombination of atoms to form newer molecules?
Molding a wire of gold
Hammering a piece of iron
Tarnishing of a silver coin
Rolling of a sheet of aluminum
Answer: Option (c) is the correct answer.
Explanation:
When there is recombination of atoms to form newer molecules then it is called a chemical change.
For example, [tex]A-B + C-D \rightarrow A-C + B-D[/tex] is a chemical change.
Tarnishing of a silver coin is a chemical change which occurs when silver reacts with moisture in the air as a result silver loses its luster.
Thus, we can conclude that out of the given options tarnishing of a silver coin is an example of recombination of atoms to form newer molecules.
Essenger rna is usually polycistronic in eukaryotes. messenger rna is usually polycistronic in eukaryotes.
a. True
b. False
The physical folder for each veterinary patient and the total body of information that comprises each animal's health history is called the
Long, saturated fatty acid tails _____ lipid mobility and _____ membrane fluidity. enhance; increase reduce; increase enhance; maintain maintain; decrease reduce; decrease
Which enzyme is responsible for the majority of the digestions of lipids?
Pancreatic lipase is the primary enzyme responsible for lipid digestion, working mainly in the small intestine to break down triglycerides into fatty acids and monoglycerides.
The enzyme responsible for the majority of the digestion of lipids is pancreatic lipase. It operates primarily in the small intestine, where it systematically breaks down each triglyceride molecule into two free fatty acids and a monoglyceride. This process is facilitated by bile, which is secreted by the liver and works to emulsify large globules of food lipids into smaller micelles, providing a larger surface area for the pancreatic lipase to act upon. Lipid digestion begins to some extent in the mouth with lingual lipase, but this is minor in comparison to the activity in the small intestine.
Carbohydrates, lipids, proteins and nucleic acids are considered _____________, which means they are large organic molecules.
A. Macromolecules
B. Micromolecules
C. Nanomites
D. Polar
Carbohydrates, lipids, proteins and nucleic acids are considered Macromolecule which means they are large organic molecules.
Thus, A vast variety of both good and bad foods, including bread, beans, milk, popcorn, potatoes, cookies, spaghetti, soft drinks, corn, and cherry pie, include carbohydrates.
They can take on various shapes as well. Starches, fibres, and sugars are the most prevalent and plentiful types.
Carbohydrate-rich foods are a crucial component of a balanced diet. The body receives glucose from carbohydrates, which is then transformed into energy for maintaining biological processes and engaging in physical activity.
Thus, Carbohydrates, lipids, proteins and nucleic acids are considered Macromolecule which means they are large organic molecules.
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Active transport occurs in cells, for example, when the Na-K pump is at work. Any process that involves active transport most often involves the A) movement of molecules without any predictable pattern. B) movement of molecules from a lower concentration to a higher concentration. C) movement of molecules from a higher concentration to a lower concentration. Eliminate D) movement of molecules from a lower to higher concentration and then back to the point of origin.
Air trapped in the fur of the caribou’s coat functions as _____. insect repellant camouflage insulation waterproofing
Answer: Insulation.
Explanation: Insulation can be defined as the protection against the changing or different environment. Insulation is usually seen the animals living in polar regions.
The fur helps in sustaining the internal heat of the body to remain inside the body without being lost outside due to the colder environment outside.
The Eskimos experience one of the world's extreme winter climates and in this kind of a situation caribou's coat provides insulation from cold.
Was 2006 an El Niño year? Why or why not?
The flow of energy from an ecosystem to an organism and from one organism to another is called ______
At which part of its orbit is the planet traveling at the greatest speed?
A
B
C
D
Answer:
d
Explanation:
_________ are organic substances essential for normal metabolism, growth and development of the body
Abuse of _______, a pain-relieving prescription medication, is increasing among adolescents and young adults.
(01.06 mc) you are a stem cell therapist who is researching a stem cell therapy to help broken bones heal faster. this therapy involves injecting stem cells into broken bones. which type of cells would you likely be injecting? osteoblasts osteoclasts osteocytes osteogenic cells
If an organism expresses a recessive phenotype, can you tell the genotype? Explain your answer by giving an example.
In an ecosystem containing the food web shown, one eventual result of a program by farmers to get rid of field mice might be
A. decreased amount of grasses.
B. decreased number of rabbits.
C. increased number of weasels.
D. no change in the number of rabbits.
In an ecosystem containing the food web shown, one eventual result of a program by farmers to get rid of field mice might be to increase the number of weasels.
How to get rid of pests?In an ecosystem, living organisms feed on one another so as to derive energy needed for metabolic activities.
This means that in a farm ecosystem, a farmer can get rid of herbivores like rats by introducing consumers.
Therefore, in an ecosystem containing the food web shown, one eventual result of a program by farmers to get rid of field mice might be to increase the number of weasels.
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The intestinal epithelium absorbs monosaccharides by __________
Each primary bronchus enters a lung and branches into smaller ________.
In the cells of some organisms, mitosis occurs without cytokinesis. this results in ________.
a. cell cycles lacking an s phase
b. cells lacking nuclei
c. cells that are unusually small
d. cells with more than one nucleus
When mitosis occurs without cytokinesis, it leads to cells with more than one nucleus. This results from the genetic material being divided without the subsequent division of the cell's cytoplasm, possibly leading to larger, abnormal cells that can be indicative of cancer.
Explanation:In the cells of some organisms, when mitosis occurs without cytokinesis, the resulting condition is cells with more than one nucleus. This happens because the cell divides its genetic material during mitosis but fails to complete the process by not undergoing cytokinesis, which is the division of cytoplasm to form two separate cells. This cell cycle aberration can lead to larger cells containing multiple nuclei, which is often an unwanted phenomenon that could indicate the presence of cancerous cells.
Cell cycle control is crucial for an organism's health as it ensures that cells divide correctly and maintain proper function. If this control is lost, cells may begin to divide uncontrollably, which is a characteristic of cancer, leading to the formation of tumors.
The cell cycle has two major phases: interphase, where the cell grows and the DNA is replicated, and the mitotic phase, where the cell actually divides. The mitotic phase includes karyokinesis (the division of the cell's nucleus) and usually cytokinesis. However, when cytokinesis does not occur, the result is a multinucleate cell, which has replicated DNA and might be larger in size but hasn't physically separated into two individual daughter cells.
List the 3 basic steps/pathways to all of the sensory systems
In _____, an animal bonds with the first object it sees after birth.
Answer: Imprinting
Explanation:
Imprinting is the phenomenon usually seen in animals in which the animals bonds to the first object it sees.
It is mostly seen in the animals like duck, in which the ducklings walk in the same way the big ducks walks.
It is a kind of phase sensitive behavioral learning in which a animal or a person learns from the stimulus of their surrounding.
Identify two ways in which environmental resources are important to human health.
1. What is the basic unit of organization of all living things?
2. What is the difference between an organ and an organ system?
3. For your organ system, describe how the system works at the organ level.
4. For your organ system, describe how the system works at the tissue level. 5. Describe what would happen if an organ in your specific organ system stopped working.Level 1: Organ System
Level 2: Organ
Level 3: Tissues of
the __________________ System
The basic unit of all living things is the cell. An organ is a structure made of tissues to perform a specific function, while an organ system is a group of organs performing complex functions. If an organ in a system stops working, the entire system can fail, causing severe consequences. Tissues of the Circulatory System comes under Level 3.
Basic Unit of Organization:
The basic unit of organization of all living things is the cell. Cells are the building blocks of life, capable of performing essential functions needed for the organism's survival.Difference between an Organ and an Organ System:
An organ is a structure composed of different tissues working together to perform a specific function. An organ system is a group of organs that work together to perform complex functions for the organism. An example of an organ is the heart, while the circulatory system is an organ system that includes the heart, blood vessels, and blood.Organ System at the Organ Level:
For the circulatory system: The primary organ, the heart, pumps blood throughout the body. The heart ensures that oxygen-rich blood reaches various organs, and deoxygenated blood is returned to the lungs for oxygenation.Organ System at the Tissue Level:
For the circulatory system: The heart's tissues, like cardiac muscle tissue, comprise cells coordinated to contract rhythmically and propel blood. Endothelial tissues line the blood vessels, facilitating smooth blood flow and protecting the vessel walls.Impact of Organ Failure in Organ System:
If an organ within the circulatory system, such as the heart, stops working, it would result in the cessation of blood circulation. This failure would deprive all other organs and tissues of oxygen and nutrients, ultimately leading to organ failure and organism death.Levels of Organization in Living Things:
From simplest to most complex, the levels of organization in living things are:AtomsMoleculesCellsTissuesOrgansOrgan SystemsOrganismsComplete Question:
1. What is the basic unit of organization of all living things?
2. What is the difference between an organ and an organ system?
3. For your organ system, describe how the system works at the organ level.
4. For your organ system, describe how the system works at the tissue level.
5. Describe what would happen if an organ in your specific organ system stopped working.
Level 1: Organ System
Level 2: Organ
Level 3: Tissues of the __________________ System
To prevent back injury, the nurse should instruct the client to
4. Enzymes are (choose one) a. Lipids c. Proteins b. Carbohydrates d. Nucleic acids