The answer choice which reduces friction around the lungs as they expand and contract is; Choice C; Pleural fluid.
What reduces friction around the lungs as they expand and contract?A membrane with two layers, termed the pleura surrounds the lungs. A slippery liquid called pleural fluid acts as a lubricant to reduce friction in the space between those two layers, called pleural cavity during breathing.
Remarks:
A. Surfactant
B. Synovial fluid
C. Pleural fluid
D. Mucus
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Which of the following could result in secondary succession?
the formation of a tall sand dune on a previously grassy beach
a vast glacier in motion forming a U-shaped valley in its wake
a volcanic eruption that covers most of what used to be a forest
an introduced species that destroys all the native plants in an area.
The answer is D. An introduced species that destroys all the native plants in an area.
What are the main functions of red blood cells ?
Answer:
carrying oxygen
Reviewing Meiosis:
1. How many cells are present and how many chromosomes are present in the cell at each stage?
start of Meiosis____
end of Meiosis 1_____
end of Meiosis 2____
1. How many cells are present and how many chromosomes are present in the cell at each stage?
start of Meiosis a parent cell that is diploid
end of Meiosis 1 when the chromosomes of each homologous pair arrive at opposing poles of the cell.
end of Meiosis 2 four haploid daughter cells
The best and closest definition of "biodiversity" would be?
a) a member within a population
b) a single organism in a community
c) all of the different species of living things in a given area
d) the non-living components of an ecosystem.
Which characteristic of life is being shown by the following image?
O Organisms react to stimuli
O Organisms grow and develop
O Organisms can adapt
O Organisms are made up of cells
O Organisms can use and obtain energy
Answer:
d
Explanation:
organisms are made up of cells
What embyonic germ layer gives rise to nervous tissue?
The embryonic germ layer that gives rise to nervous tissues is the ectoderm.
Embryonic layersThere are 3 types of embryonic layers for triploblastic animals:
The endoderm: this develops into the gut and other internal organs.The mesoderm: this develops into muscle cells and connective tissuesThe ectoderm: this develops into nervous tissues and epidermisMore on embryonic layers can be found here: https://brainly.com/question/9599868
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Which muscle fiber contracts slowly and is usually red due to the amount of blood vessels delivering oxygen to the muscle?.
Due to their immense oxygen needs, slow-twitch fibers are associated with many blood vessels, mitochondria, and increased concentrations of myoglobin, an oxygen-binding protein in the blood that provides muscles their reddish coloring.
Robert Hooke first observed cork under a microscope in jail so he named the small cubicles cells
False True
Answer:
False
Explanation:
The statement is false. Though "Robert Hooke" was the first person to observe cork under microscope. He named the small cubicles cells because it used to remind him of the cells in the monastery (a place for monks).
Answer:
False
Explanation:
RobERT Hooke observed the cork first and names the particles as cells .
But he did that in Monastery not jailHence the statement is false
how does a catalyst work ?
Answer:
Magic.
Explantion:
Magic from the catalyst.
As an individual ages, new neurons and dendrites appear, but others atrophy. Compared to when they were adolescents, adults have fewer neural connections and their brain size _____ as they continue to age.
The brain and central nervous system shrink as we age.
What happens to the brain when we age?The brain is one of the most important organs in our body because all the nerve signals are produced there for our body to function.
In the brain we find nerve connections through neurons. A particular aspect of them is that during childhood and adolescence they multiply as we learn new things.
However, once we reach the stage of old age, these nerve connections deteriorate and are reduced, therefore, the size of the brain and the central nervous system decreases.
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What molecule is the final electron acceptor in the Electron Transport Chain?
The final electron-accepting molecule in the electron transport chain is oxygen.
Role of oxygen in the electron transport chainOxygen mainly acts as an electron acceptor in the electron transport chain. More specifically, it acts as the final electron acceptor to ensure that oxidative phosphorylation takes place.
Without this final electron acceptor, the electron transport chain will not be able to complete the cycle, and energy molecules in the form of ATP will not be formed.
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write the categories of classification in hierarchical sequence
Answer:
these are the seven taxonomic units:
Kingdom -it has the largest number of members and also the largest taxonomic unit
phylum (animals)/division (plants)
class
order
family
genus
species-it has the least number of members who freely interbreed to give rise to an infertile of spring
Explanation:
hope you got it! if there's any question feel free to ask .good day.
Answer:
Kingdom
Phylum/division
Class
Order
Family
Genus
Species
Explanation:
formulae
King
Philip/David
Can
Order
For
Green
Soaps
What would happen if you changed the temperature and ph around the enzyme?
However, extremely high temperatures can cause an enzyme to lose its shape (denature) and stop working. pH: Each enzyme has an optimum pH range. Changing the pH outside of this range will slow enzyme activity. Extreme pH values can cause enzymes to denature.
If the temperature and pH around an enzyme is changed, the enzyme would likely denature. Details about enzymes can be found below.
What is an enzyme?Enzymes are biological catalyst that regulates the rate of biochemical reactions in living cells.
Enzymes function at a particular temperature and pH and can easily get denatured i.e. alter its original form.
This suggests that if the temperature and pH around an enzyme is changed, the enzyme would likely denature.
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How many instances of cell-cell communication are involved in the motor component of a visceral reflex arc?.
Two instances of cell-cell communication are involved in the motor component of a visceral reflex arc.
What is a visceral reflex arc?The visceral reflex arc can be defined as a part of the autonomic nervous network required during involuntary muscle responses.
The visceral reflex arc involves afferent sensory neurons and the stimulation of postganglionic neurons to target cells.
In conclusion, the number of cell interactions in the visceral reflex arc is equal to two (2).
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What happens when the body fails to take up excess glucose from the blood a. The excess glucose binds to working proteins, rendering them nonfunctional. b. The excess glucose is metabolized to produce energy for physical activities. c. The excess glucose retains water in the body to prevent dehydration. d. The excess glucose from the blood gets stored in the adipocytes. e. The excess glucose gets converted into useful alcohols.
Explanation:The excess glucose gets converted into useful alcohols.
When the body is unable to take up excess glucose from the blood then at time the fats from the blood gets stored in fats storing cells called as adipocytes. The excess glucose gets converted into useful alcohols. Last option is correct.
What are adipocytes ?These are the cells that store fats in the human body are called as adipocytes. These are the main energy storing cells.
The excess glucose gets converted into useful alcohols.
At this situation glucose is provided by the the carbohydrates where the glucose is the stored compound in the form of glycogen.
Therefore, the excess glucose is stored in the form of useful alcohols.
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what is potential energy
Answer:
The energy of a body or a system with respect to the position of the body or the arrangement of the particles of the system.
Explanation:
Energy is a delicate notion that is extremely difficult to master. Energy is sometimes described as the ability to accomplish labor, that is, to push anything against a force. That isn't completely correct, since due to the Second Law of Thermodynamics and the fact that much energy is merely mass, there is a lot of energy that isn't accessible to do any work. We're on somewhat better ground with potential energy. When we say there is potential energy, we mean that there is something in a system that, if permitted to alter, has the capacity to accomplish work. Saying that there is potential energy is a form of abbreviation. Consider gravitational potential energy. If two masses are separated by a distance, we might let them fall together and accomplish some work, perhaps by pulling a rope tied to a wheel or whatever. We have the energy to get there. Of course, it is a fraction of the overall energy in the system. When we get to notions like that, we must count a lot more. Nonetheless, some cosmological models require a type of negative gravitational potential energy to make total energy conservation work. According to such views, nearly all of the universe's mass condensed out of the vacuum to offset the negative energy associated with the inflationary epoch. As a result, the universe's total energy is zero. It is not the sole hypothesis, but it is useful in that it answers the issue of why there is something rather than nothing. It would imply that there is nothing completely, but it is unevenly dispersed. One of the two major forms of energy is potential energy. Potential energy is the amount of energy that an object can hold. It is the power that a thing has while it is not in motion. The potential energy of a moving item increases as it slows down. The object's capacity strength reduces as it accelerates. Potential energy is the electricity that occurs as a result of the relative locations (configurations) of the components in a physical machine. This energy form has the capacity to modify the state of other things around it, such as the configuration or movement. Potential energy encompasses a wide range of energy kinds.
What was the background information that Schleiden and Schwann
needed to perform their experiments about cells?
Theodore Schwann and Mattias Schleiden needed the background information about cell is that how cells originate and functions in the body of animals as well as plants.
What is the contribution of Schwann and Schleiden?Schwann and Schleiden proposed the cell theory, which states that all living organisms are composed of one or more cells. The cell is the basic unit of structure and function in organisms.
Each cell arises from a pre-existing cell.
The basic information that Schwann and Schleiden needed before performing the experiments about cells is how cell-derived in this nature become the most important part of life in living entities.
They also wanted to know the actual function and metabolic activities of the cell.
Therefore, it is well described above.
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A husband and wife have two sons. One boy has a straight thumb, while the other has a bent thumb. What causes this difference?
Which layer of the dermis houses the nerve endings that are sensitive to touch and pressure?.
Answer:
Reticular layer
Explanation:
A comparison that does not use "like" or " as" is known as ...
hyperbole
onomatopoeia
metaphor
simile
Answer:
Metaphor is the answer.
What kind of calls are usually smaller and found in simpler forms of life
In adult circumcision, a ________ incision is made in the skin and carried circumferentially.
During adult circumcision, a dorsal incision is made in the skin of an individual and carried circumferentially.
What is circumcision?Circumcision can be defined as a surgical procedure that involves a removal of the foreskin from the pe-nis (genital) of a male organism, especially at infant stage.
Based on medical information, a dorsal incision is made in the skin of an individual and carried circumferentially during the removal of the foreskin from the pe-nis (genital) of an adult (adult circumcision).
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What blood vessel is a tributary of the hepatic portal vein?
According to the research, the linear vein is a tributary blood vessel of the hepatic portal vein.
What is the hepatic portal vein?It is a blood vessel that carries deoxygenated blood from the digestive organs and the spleen to the liver.
The linear vein is one of the branches of the celiac trunk that supplies the spleen and gives off branches to the stomach and pancreas.
Therefore, we can conclude that according to the research, the linear vein is a tributary blood vessel of the hepatic portal vein.
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What do plants need to survive and reproduce
It is very important that plants gets the right amount of basic needs to survive and reproduce. This is essential to humans as their main source of food is from plant.
Plants needs light, air, water, nutrients, and space to survive and reproduce. Plants gets their source of light from the sun, they use this light energy to produce glucose in the leaf.
Plants obtain air from the atmosphere, they derive water and nutrients from the soil to enhance their growth.
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The _____________ is composed of a vast system of microscopic tubules that communicate directly with the capillaries to filter the blood.
The glomerulus is composed of a vast system of microscopic tubules that communicate directly with the capillaries to filter the blood.
What are functions of glomerulus?The glomerulus is the network of small capillary blood vessels which is found embedded within the bowman's capsule of the kidney.
The functions of glomerulus include the filtration of blood to remove the following:
wastesdrugs andexcess water.Therefore, the glomerulus is composed of a vast system of microscopic tubules that communicate directly with the capillaries to filter the blood.
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What is cladistics?
OA. The comparison of species based on common behavioral
characteristics
B. The comparison of species based on their geographic range
C. The comparison of species based on the presence or absence of
ancestral traits
D. The comparison of species based on common physical
characteristics
The comparison of species based on common physical characteristics Thus, the correct option is D.
What is cladistics?Cladistics is a method of biological taxonomy that organizes taxa in a branching hierarchy so that all members of a given taxon share the same ancestors and defines taxa uniquely by shared traits not present in ancestral groupings.
Clades, which are collections of organisms made up of an ancestor species and its offspring, are also identified through cladistics.
A cladogram only displays one probable phylogeny for a collection of organisms. It can shed light on the process of evolution. A cladogram should not be viewed as a representation of genuine evolutionary processes, though. It may or may not depict what actually occurred. It merely illustrates what might have occurred.
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30. 9) To complete this Venn Diagram, label the following cell parts as A (Prokaryotic), B (common to both) or C (Eukaryotic) characteristics:
A B C
Prokaryotic
Eukaryotic
capsule
flagella
cell wall (incl. plants)
cytoplasm
cell membrane
nucleus
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Answer: Capsule : A
Flagella: A
Cell Wall: B
Cytoplasm: B
Cell membrane: B
Nucleus: C
Explanation: got this question correct on my lesson. Hope this helps, if you are in Visions, best of luck to you from another fellow vision student.
The stage of the cell cycle during which the cytoplasm divides to form two cells is called.
Answer:
Cytokinesis
Explanation:
Cytokinesis is the step of the cell cycle in which the cell must faithfully separate the chromosomes and cytoplasm, yielding two daughter cells.
he condition of the Earth’s atmosphere at a given place and time is known as __________.
A.
climate
B.
precipitation
C.
temperature
D.
weather
Answer: D weather
Explanation:
What form of natural selection does the histogram show?
disruptive selection
sexual selection
directional selection
stabilizing selection
The form of natural selection does the histogram show is disruptive selection.
What is a disruptive choice on a graph?In disruptive choice, choice pressures act on people withinside the center of the trait distribution. The end result is a bimodal, or -peaked, curve wherein the 2 extremes of the curve create their personal smaller curves.
Disruptive choice produces a populace that has severe variations of a trait because the dominant phenotype. For example, if each brief and tall organisms, however now no longer medium top organisms have been preferred this will be disruptive choice in action.
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