*A drug administered by the cutaneous route can have one of these three actions:
Local action, superficial: ex. local anesthetic ...
Deep action: ex. anti-inflammatory action ...
Systemic or general action: ex. anti-anginal action
*The skin is a very effective barrier, which limits the number of drugs that can enter the system.
*The factor influencing the penetration of the drugs are:
- Nature and physicochemical properties of P.A: Molecular weight, hydrophilicity, lipophilicity, stability ...
- Formulation of the drug: Excipients lipophilic, hydrophilic, amphiphilic, an absorption promoter
- Nature and condition of the skin, Location, age, thickness (1 to 8 mm ...), vascularization...
*To not penetrate the skin, a drug should have to be of high molecular mass (to be unable to penetrate through the skin tissue), hydrophilic (since the skin is of a lipophilic nature).
*For example, solar creams should not enter the system so the excipients used are hydrophilic in nature.
This is what an oak tree does at the theater when the movie ends
One of the bladder's main functions is to __________. A. absorb water in the body B. filter the blood C. connect the kidney to the urethra D. store urine before elimination
The correct answer is D. Store urine before elimination.
Bladder is termed as a hollow muscular organ which is found in some animals and human which stores and collects urine from the kidney before it is being disposed by way of urination.
It is via the ureters is how urine enters the bladder and its exit is urethra.
A normal human can hold a maximum of 500mL before an urge of emptying occurs.
Answer:
D. store urine before elimination
Explanation:
One of the bladder's main functions is to __________.
Markets distribute goods and services based on
fill in the name of the processes such as freezing that are represented
These are names of processes linked to the changes in physical states and properties of matter. They include an isentropic process with no change in entropy, irreversible processes which cannot return the system or surroundings to an initial state, isothermal processes that operate at constant temperatures, isobaric and isochoric processes that maintain constant pressure and volume respectively.
Explanation:The name of the processes such as freezing can be related to the ones annotated in the representation below.
Isentropic: This is a process that proceeds without any change in entropy. It's an ideal process that assumes perfect insulation, hence no exchange of heat with the surroundings.Irreversibility or Irreversible Process: These are processes that cannot return the system or the surroundings to its initial state. Heat transfer, free expansion, mixing of gases, and chemical reactions are examples.Isothermal Expansion or Isothermal Process: These are transformations that take place at a constant temperature. Gas expansion with heat addition is an example.Isobaric process: This is a thermodynamic process whereby the pressure remains constant.Isochoric process: A process during which the volume remains constant.Learn more about Thermodynamic processes here:https://brainly.com/question/31237212
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Identify 2 ways organisms reproduce
A large hole that opens in the ground as a result of overpumping groundwater is a _____.
subsidence
sinkhole
intrusion
cavern
the levels of carbon dioxide are at the highest that they've ever been in the history of Earth.
True or False
label and illustrate an autotroph and a heterotroph organism. i used all my points for this pretty please answer. you will save 10%of my grade
Heterotrophs(dog, deer, tiger, etc.) get their food from autotrophs(plants).
What are autotrophs?Autotrophs animals are those that make their own food.Example: all green plants.What are heterotrophs?Heterotrophs animals are those that do not make their own food but are either directly or indirectly depend on plants for their food.Example: deer(primary consumer), fox(secondary consumer), tiger(tertiary consumer).Hence, heterotrophs depend on autotrophs is shown in the given diagram.
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which is an ion found in a glass of water
It's.
_
OH
This is the anwser on apex
A neutral atom of oxygen has 8 protons and ______ electrons. (Enter a whole number.) Numerical Answers Expected!
Answer:
8 electrons
Explanation: there are the same amount of protons and electrons in a atom
A neutral atom of oxygen has 8 protons and 8 electrons.
Explanation:A neutral atom of oxygen has 8 protons and 8 electrons. Oxygen is an element with atomic number 8, which means it has 8 protons in its nucleus. Since atoms are neutral, the number of electrons in an atom is also equal to the number of protons. Therefore, an oxygen atom has 8 electrons.
During the process of _____, two rails or sides break apart and attract new nucleotide bases to form a new and complete strand.
The ph scale ranges between___ and ___
What is one way that early scientific practice differed from modern scientific practice? Early hypotheses were not based on observations. Early hypotheses were not tested by experimentation. Early hypotheses were formed from scientific questions. Early hypotheses were influenced by creative thinking.
Early hypotheses were not tested by experimentation.
One way early scientific practice differed from modern scientific practice is that early hypotheses were not tested by experimentation. In earlier times, many ideas were often developed based on philosophical reasoning, deductive logic, or theoretical speculation without the rigorous experimentation and empirical testing that are central to modern scientific methods.
Over time, the emphasis has shifted to the use of controlled experiments and systematic observation to test hypotheses and validate scientific theories.
Twin boys both have a gene associated with aggressive tendencies. what is the most likely outcome to be observed in their behavior as they grow up?
Give two examples of environments that involve more than one sphere.
I will give brainliest.
Which of the following best describes homeostasis?
The maintenance of an organisms internal environment within certain limits.
The maintenance of an organisms external environment within broad limits.
Answer:
The Correct Answer is
The maintenance of an organism's internal environment within certain limits.
Explanation:
Homeostasis is the consistency and the state of balance of the system.
It further explains the ability of the physiological processes of the internal environment to maintain a relatively steady-state even though the outside world is changing continuously.
There are two types of Homeostasis; Physiological and Psychological.
which organelle of a prokaryotic cell contains genetic information? A.ribosomes B. nucleus C. nucleoid D. cell membrane
The right option is; C. nucleoid
Prokaryotic cells are simple cells that lacks a definite nucleus and some membrane bound organelles. Prokaryotic cells have a nucleoid region, which is an irregularly-shaped central region of the cell that contains the cell’s genetic information (DNA). Other organelles that can be found in prokaryotic cells include plasma membrane, cell wall, cytoplasm and ribosomes.
Nucleoid is an organelle of a prokaryotic cell that contains genetic information.
Further Explanation Living organisms are classified as either eukaryotes or prokaryotes. Eukaryotes Eukaryotes are living organisms that contain a nucleus and other membrane bound organelles. The function of the nucleus being storage of genetic materials and also controlling all cellular activities. Eukaryotes are either single celled or multicellular for organisms such as plants, animals, and fungi. Prokaryotes Prokaryotes are organisms that lack a nucleus and other membrane bound-organelles such as ribosomes, Golgi apparatus, endoplasmic reticulum, etc. Genetic information in prokaryotes is contained in a nucleoid which is a concentration of DNA that lacks an enclosing membrane. Nucleoid contains large circular DNA that has genes that are required for the survival and reproduction of the cell. Other Cellular organelles. Nucleus Nucleus is a type of cellular organelle found in eukaryotic cells whose function is to control all the cellular activities undertaken by the cell. Additionally, the nucleus house the DNA which carries the genetic material of an organism. Mitochondrion This is one of the cell organelle inside a cell. It is referred as the powerhouse of the cell, as it is where energy to drive all cellular activities is generated through the process known as cellular respiration. Ribosomes These are organelles where the synthesis of proteins takes place through a process known as translation. They are found in the cytoplasm, either freely suspended or attached to rough endoplasmic reticulum. Cell membrane It is a structure that encloses the cell contents in the cytoplasm from the external environment. It’s functions is to control materials entering in and out of the cell through selective permeability.
Keywords: Prokaryotes, nucleoid, nucleus, genetic information
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Level: High school
Subject: Biology
Topic: Classification of living organisms
Sub-topic: Prokaryotes and eukaryotes
__________ lenses refract light rays in toward a central point. When this lens is held close to your eye, the image is magnified and right side up.
Answer: Convex
Explanation:
Convex lens refracts the light rays in towards a central point. These lenses are thicker at the middle and when the light rays are passed through it then all the rays are bought close together.
If this lens is placed close to your eyes then image looks slightly magnified because it thicker at the middle.
The element nitrogen has the atomic number 7 and an atomic mass of 14. How many neutrons does an atom of nitrogen contain?
if different individuals of a species of mouse have different alleles they will also have different A. genders B. parents C. cells D. traits
Answer:
The correct answer is option D. "traits".
Explanation:
Alleles are specific forms of genes that determine the developed of certain trait in an organism. Alleles are responsible for the development of traits, for instance, the fur color of mice is determined by the expression of different alleles. Therefore, if different individuals of a species of mouse have different alleles they will also have different traits.
The events taking place in two different locations are described below: Location A: Movement of plates causes hot spots to move to a location with thinner crust Location B: Tectonic plates move away from each other under the sea In which location will active volcanoes most likely be formed and why? Location A, because the magma breaks through the thin crust Location A, because cracks between plates are filled with molten rocks which solidify Location B, because the oceanic plate and continental plate are pushed up through the crust Location B, because the thinner oceanic plate will be pushed under the continental plate
Answer:
The correct answer is A
Location A, because the magma breaks through the thin crust
Explanation:
Which of the following functional groups contains only carbon, hydrogen, and oxygen? A) carboxyl group B)amino group C)sulfhydryl group
The functional group that only contains carbon, hydrogen, and oxygen is carboxyl group. The correct option is A.
What is a functional group?Functional groups are groups of atoms in a substance that control the complex's chemical behavior include groupings like the hydroxyl group in an alcohol.
The functional group refers to the area of a substance that interacts with another component.
An atom or group of atoms known as a functional group is in charge of a certain chemical characteristic of an organic molecule.
Functional groups are a way to categorise organic molecules. An organic compound with a functional group has a different attribute from what it would otherwise have.
The two functional groups hydroxyl (single-bonded OH) and carbonyl (double-bonded O), which are both connected to one carbon atom, are combined to form carboxyl groups.
The amino group have nitrogen along with carbon, hydrogen, and oxygen, while sulfhydryl group have sulfur in addition.
Thus, the correct option is A.
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Rocks created from compaction and cementation of sediments are called A)sedimentary
B)metamorphosis
C)igneous
D)metamorphic
Why do enzymes generally only bind to one type of substrate?
5. Based on your reading, what makes it so that you are able to literally walk on the ocean floor in the Bay of Fundy?
sphere do you think is the most important to study and why your answer should include information about all four spheres (hydrosphere lithosphere atmosphere and biosphere)
Answer:
HYDROSPHERE
Explanation:
The lithosphere is the solid outer portion of earth. It includes the crust and a small portion of the upper mantle. The rocks present in this region are determined which are hard and undergoes deformation due to the stress that acts on it. The region has been explored and sufficient data has been acquired.
The atmosphere is defined as the gaseous envelope that surrounds the earth. The different layers of atmosphere has been constructed depending upon its height and temperature. The composition of atmosphere is also identified that are present in a definite amount. This amount can either increase or decrease due to the changes in the earth's surface.
The biosphere is the region that includes the hydrosphere, atmosphere and lithosphere where life occurs and interacts between them. Sufficient study has been made regarding this zone and were able to understand how life occurs depending upon the various factors.
The hydrosphere refers to all the water bodies on earth, including the glaciers and the ice bergs.
The terrestrial areas have been explored easily because it is possible for a person to visit those sites but it is not possible to go at a deeper depth to study the structure and the components of the deep water bodies. Although, much of the information has been regarding this sphere, but still the deep water portion such as the deep sea trenches are yet to explore. It is not possible because at this depth, the pressure is extremely high and lift is normally difficult to exist at this pressure condition. But there are some animal and plant species that can grow and survive at this condition.
So, much more is needed to study regarding the hydrosphere.
The most important sphere to study may vary by perspective, but all four spheres, the lithosphere, hydrosphere, atmosphere, and biosphere, are interdependent, influencing Earth's climate, geography, and life.
Understanding the different spheres of Earth is crucial because they are deeply interconnected and collectively influence the planet's climate, geography, and life. The four main spheres are the hydrosphere, lithosphere, atmosphere, and biosphere. The lithosphere includes solid rock, soil, and minerals. The hydrosphere encompasses all forms of water on the planet. The atmosphere refers to the layer of gases surrounding the Earth, and the biosphere comprises all forms of life and their interactions with the other spheres.
Each sphere is important in its own right, but if we must consider which sphere is the most crucial to study, it could vary depending on the perspective and context. The hydrosphere is often emphasized due to its essential role in the water cycle and life support, interacting dynamically with the atmosphere, lithosphere, and biosphere. This interaction includes fundamental biogeochemical cycles, such as those for water, carbon, and nitrogen, which are critical for life on Earth.
However, determining which sphere is the most important is subjective and largely depends on what aspect of Earth's systems one considers most vital. The lithosphere provides the foundation for habitats and is a source of valuable resources, the atmosphere is crucial for climate and weather patterns, the hydrosphere is indispensable for all life, and the biosphere is the sum of all ecosystems. The study of any single sphere is incomplete without considering its interactions with the others.
what effect does the presence of existing soil in secondary succession have on the amount of time it takes to return to the climax community compared to primary succession
What is the main purpose of aquaculture
which of the following parts of a nuclear power plant is turned on by steam
A.Control rods
B.Ractor vessel
C.Turbine
D.Generator
Answer:
Option (C)
Explanation:
A nuclear power plant is considered to be a thermal power station where the main source of heat is the nuclear reactor. Here, energy is released in the form of heat that helps in generating steam. This steam then initiates the motion of the turbines that are connected to a generator. These turbines when rotates produce electricity.
These nuclear plants are less costly and they do not emit any kind of pollution. They are very efficient to use but has certain disadvantage, that the waste materials it releases contain some amount of radioactive element in them and are difficult to dump.
Thus, the turbines in a nuclear power plant is turned on by the steam.
Hence, the correct answer is option (C).
Which statement describes a negative consequence of humans’ use of excess water?
It allows food to be produced in dry areas.
It increases runoff, which carries fertilizers.
It enables food to be produced in drought years.
It results to water not being recycled.
Answer: B. It increases runoff which caries fertilizer
Explanation: