Answer:
A. density.
Explanation:
At a front, the two air masses have different densities,
based on temperature, and do not easily mix. One air mass is lifted above the
other, creating a low pressure zone. If the lifted air is moist, there will be
condensation and precipitation. Winds are common at a front.
A fiber reinforced composite contains e-glass fibers in an epoxy matrix. E for the glass is 72 GPa, E for the epoxy is 2.4 GPa. Find the elastic modulus of a composite that contains 5% fibers in the longitudinal direction, Ecl
Answer: hello your question is in complete below is the complete question
A fiber reinforced composite contains e-glass fibers in an epoxy matrix. E for the glass is 72 GPA, E for the epoxy is 2.4 GPa. Find the elastic modulus of a composite that contains 5% fibers in the longitudinal direction, Ecl = ViEi + EmVm? (note Vi + Vm= 1.) O 5.88 GPa O 5.66 GPa O 2.52 GPa O 6.74 GPa
answer : 5.88 GPa
Explanation:
Fiber reinforced composite containing e-glass fibers
E for the glass ( Ei ) = 72 GPa
E for the epoxy ( Em ) = 2.4 GPa
Determine the Elastic modulus of a composite containing 5% fibers
percentage of glass = 5% = Vi = 0.05
∴ percentage of epoxy = 95% ; Vm = 0.95
using the relation included in the question
Ecl = Ei Vi + Em Vm
= ( 72 * 0.05 ) + ( 2.4 * 0.95 )
= 3.6 + 2.28 = 5.88 GPa
Click all of the ways the bearded seal is adapted to live in its environment.
Question 4 options:
small eyes to see in the dark
webbed feet for paddling
hard heads to break ice
blubber to keep warm
sensitive whiskers to feel around ocean floor
large glands for perspiration
good hearing
waterproof fur
Answer:
small eyes to see in the dark
webbed feet for paddling
hard heads to break ice
blubber to keep warm
The ways where the bearded seal should be adapted for living the environment should be small eyes, webbed feet, hard heads, and the blubber.
What is the bearded seal?Bearded seals resulted to prefer the sea ice along with the natural opening via it could made the breathing holes in the thin ice by using the heads or claws.
It gives the bearded seal and have some kind of protection from predators like polar bears at the time of nursing.
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Question 10 Sarcomeres are functional units _____muscle
A) Cardiac
B) Skeletal
C) B and C only
D) Smooth
briefly explain each one correct or incorrect . thanks
Answer:
skeletal
Explanation:
Cardiac muscle are only found in the heart
Smooth muscles generally form supporting tissue of blood vessels and hollow internal organs e.g stomach, intestines.
characteristics of plasmodium
Explanation:
Characteristics of Plasmodium
They characteristically show the presence of apical complex.
Apical complex consists of polar rings, rhoptries, micronemes, mitcochondrions, microtubules and microspores
Organs for locomotion
They show slight amoeboid change of form
The parasite in their life cycle shows an alternation of generation accompanied by an alternation of host
The nucleus:
produces energy.
stores DNA.
stores waste.
lets things in and out of the cell.
Answer:
The nucleus stores DNA.
Are also affected by the process. We can get diseases by eating seafood that has been poisoned
Which role do ultrafine particles play in dirty air?
They contribute to less than 13,000 premature deaths a year.
They can worsen symptoms for people with breathing difficulties.
They are easily removed from the air when people see them floating.
They are constantly filtered by the nose, which prevents lung absorption
Answer:
B
Explanation:
The role the ultrafine particles play in dirty air is that they can worsen symptoms for people with breathing difficulties. The correct answer is b).
What are ultrafine particles?The term "ultrafine particles" (UFPs) refers to particles with a dimension of less than micrometers and more than 0.1 micrometres (100 nanometers), also known as nanoscale particles. The majority of the ultrafine particles are found on motorways and are mostly produced by vehicle emissions.
It has been demonstrated that ultrafine pollution particles may play a crucial role in igniting extra pathways or inflammation, which worsens asthma disease. The ultrafine particles released by motor vehicles and other sources of combustion are covered with an organic chemical coating that can be inhaled.
By oxidizing cells and tissues, these substances create free oxygen radicals that activate the immune system in the lung. For those who have asthma, oxidation exacerbates the allergic inflammation in their lungs.
Therefore the correct option is b).
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One conclusion drawn from the experiment was that life span differences were independent of reproductive investment. If that is the case, then which of the following statements is true? Females that exhibited catch-up growth and produced many eggs had longer life spans than females that exhibited catch-up growth and produced few eggs. Females that exhibited catch-up growth and produced few eggs had longer life spans than females that exhibited catch-up growth and produced many eggs. Females that exhibited slowed growth and produced many eggs had longer life spans than females that exhibited slowed growth and produced few eggs. Females that exhibited slowed growth and produced few eggs had longer life spans than females that exhibited slowed growth and produced many eggs. Females that exhibited slowed growth and produced few eggs had similar life spans to females that exhibited slowed growth and produced many eggs.
Answer:
The correct answer is - Females that exhibited slowed growth and produced few eggs had similar life spans to females that exhibited slowed growth and produced many eggs.
Explanation:
According to the question, the life span differences were independent of reproductive investment, on the basis of this experiment, it is clear that the sexual gametes or egg which is a reproductive investment are independent of the lifespan of a female.
The life span of females could be slow growing or not but it will not affect the production of the gametes or eggs. Eggs production is dependent upon hormones produced.
AG CLASS
Which of the following distinguishes the institution most likely to provide the level of education needed to become a research plant geneticist?
Iowa Central Community College
Iowa State University
American Society of Agricultural and Biological Engineers
Organic Farming Research Organization
Answer:
No is wrong
Explanation:
Answer:
Iowa State University
Explanation:
Edge 2022, it's not Organic Farming Research Organization, I picked that one and got it wrong.
what is difference between herbs, shrubs and trees?
Herbs have delicate and thin tissues, shrubs have strong and soft tissues while trees have strong, thick, and hard tissues
Explanation:
herb and shrubs and trees are three types of plants that grow on Earth herbs are the smallest non-woody plants which lack branches schrubs are taller than herb and contain branches at their bases treesare the tallest plant with branches above the ground level
AB blood type illustrates the principle of
The AB blood type has both A and B alleles.This illustrates principle of co-dominance
Which statement best describes the relationship that exists among proteins, DNA, and cells?
O Proteins combine to produce cells, which produce DNA.
O Proteins are made up of DNA, which determines the cells that are produced.
O DNA is made up of lipids, which tell a cell how to function.
O Cells contain DNA, which codes for the production of proteins.
Explanation:
chloroplast has dna cells
Answer:
they help keep cells working and give us different patterns
Explanation:
should humans be used as subject for experiment
Answer:
Human experimentation refers to the use of human beings as experimental subjects. A subject is defined as an individual who is observed or experimented with by an investigator; an investigator is a qualified individual who conductsresearch. Humans have long been used as subjects for a variety of experiments.
Explanation:
can you please help me
Answer: 41. primary. 42. temporary storage. 43. secondary. brainliest?
Explanation:
Fresh steak is said to have both negative and positive redox potential. Discuss how the redox potential affects the microbial ecology of the food
Answer:
Increases redox potential decreases microbial growth inside food.
Explanation:
The redox potential is considered as one of the most complex indicators of the physical conditions of microbial cultures. The measurement of redox potential could be very useful for the determination of qualitative and quantitative parts of the microbial contamination. During the bacterial growth, the redox potential of the medium decreases. Redox potential is a measure of the tendency of a biological species which can be acquire or lose electrons through ionization. If the redox potential of the medium is increases, there will be lower growth of microbes in the food and vice versa.
Explain E.O. Wilson's theory of Island Biogeography as it applies to environments other than islands physically
surrounded by water.
Answer:
The theory of E.O. Wilson's theory of Island Biogeography was originally developed as island biogeography, to explain species richness of actual islands, surrounded by water.
It proposes that the number of species found in an undisturbed environment is determined by immigration and emigration. According to him, the species richness will be the same if this island will have an equal number of the immigration and extinction or emigration of species.
which of the following best describes how the Sun creates wind on Earth
The energy of the sun heats the land unevenly, creating wind.
What is Earth?Earth, the third planet from the Sun, is the planet where all known life is found. Although the Solar System contains enormous amounts of water, only Earth is home to liquid surface water.
The ocean covers roughly 70.8% of Earth's surface, dwarfing the polar ice, lakes, and rivers. Earth's surface is made up of continents and islands for the remaining 29.2% of its total area.
Several slowly moving tectonic plates that make up the Earth's surface combine to create mountain ranges, volcanoes, and earthquakes. The magnetic field that forms the Earth's magnetosphere and diverts harmful solar winds is produced by the liquid outer core of the planet.
Therefore, The energy of the sun heats the land unevenly, creating wind.
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HELP PLEASE
What behavior allows newborn animals to recognize and follow the first moving object they see?
Question 4 options:
conditioning
courting
mimicking
imprinting
Answer: imprinting
Explanation: i took the test
what is basement membrane? and what is it made up of ? in detail plss help
You are a consultant for a second ELVIS mission to NPIP. Describe what physical and/or chemical treatments you would require prior to liftoff to minimize the opportunity for contamination of the ELV (the landing module of the spacecraft) and ELVIS (a new version of the robot) by Earth microbes. Hint: Keep in mind the following: ELVIS’s skin cannot withstand temperatures above 90°C; the ELV itself is approximately the size of a minivan and includes many metal parts. Use scientific terminology as you discuss this answer: e.g., are you trying to achieve disinfection or sterilization? Are you recommending use of antiseptics or disinfectants?
Answer:
As the consultant for the second ELVIS mission, my recommendations would be as follows:
Provision of standardized materials to the best of my knowledge and practice.Production and Development of look-alike skin from the variant of Lycra.Instruction of proper exercises such that the overall effect is minimized.Explanation:
In order to provide the necessary care in the limitations of the mission, the first step is to use the first mission of ELVIS as the starting point. The steps, precautions and lessons learnt from the first mission are used as stepping stones for the second mission.
HEY I NEED SOMEONE TO HELP ME WITH THESE NOTES PLZ
Aiden is having soup for lunch when the doorbell rings. He gets up from the
table, leaving his metal spoon in the bowl of hot soup. When he comes back a
few minutes later, the spoon is hot.
This is an example of ______________________
. I know this becaus
Answer:
23
Explanation:
Nice edge 40r0
how proteins are made
Proteins are an important class of molecules that carry out most of the work inside cells. The building blocks of proteins are smaller organic molecules called amino acids. Most organisms, including humans, use only 20 different amino acids to assemble the vast multitude of proteins needed to build and run a cell.
To build proteins, cells use a complex assembly of molecules called a ribosome. The ribosome assembles amino acids into the proper order and links them together via peptide bonds. This process, known as translation, creates a long string of amino acids called a polypeptide chain.
After the polypeptide chain is synthesized, it will sometimes undergo additional processing. For example, some proteins will have certain amino acids removed. Or extra molecules such as sugars or phosphates may be attached to some of the amino acids in a protein.
Answer:
proteins are made of large numbers of amino acids joined end to end. The chains fold up to form 3d molecules with complex shapes - you could think of it as origami with very long and thin piece of paper
n 2000, Bob Harmon discovered the best-preserved Tyrannosaurus rex skeleton ever found. The fossilized dinosaur was sticking out of the wall of a canyon in Montana. Many scientists were eager to study the fossils.
Dr. Mary Schweitzer got one of the leg bones to analyze. Dr. Schweitzer’s assistant dissolved the bones in acid and discovered that some soft tissue had survived even after 68 million years. The discovery was a shock to the scientific community. No one had ever found such old tissues.
Before laying eggs, female birds store calcium inside their bones that they will need to make eggshells. This layer of bone is called medullary bone. In the T. rex leg bone, Dr. Schweitzer found tissue just like the medullary bone of birds. The dinosaur was a female! If Dr. Schweitzer’s hypothesis is right, she is the first scientist to identify the sex of a T. rex. Which organ system includes the bones?
A. skeletal system
B. muscular system
C. reproductive system
D. integumentary system
Bob Harmon discovered the best-preserved Tyrannosaurus rex skeleton ever found and is the first scientist to identify the gender of a T. rex, the organ system is the skeletal system, as it includes the bones that are present in Option A.
What is the significance of the skeletal system?The skeletal system, which provides structural support, is important for animals as it protects vital organs, supports muscles, and helps in movement. Also, the bones synthesize the blood cells, such as the red blood cells, which carry nutrients and oxygen, it also maintains the individual's balance and posture and provides a veil over the fossil records.
Hence, Bob Harmon discovered the best-preserved Tyrannosaurus rex skeleton ever found and is the first scientist to identify the gender of a T. rex, the organ system is the skeletal system, as it includes the bones that are present in Option A.
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PLEASE HELP I HAVE AN EXAM !!!
What are the three things that trigger production and secretion of a hormone from an endocrine gland?
Answer:
There are three mechanisms by which endocrine glands are stimulated to synthesize and release hormones: humoral stimuli, hormonal stimuli, and neural stimuli.
17. A terrane becomes part of a continent in a process called
a. rifting.
c. slab pull.
b. converging.
d. accretion.
If a DNA sequence it GAATGCCT, what are the matching base pairs?
Answer:
CTTACGGA
Explanation:
4. which of these substances cannot pass through cell membranes?
A.Starch. B.Glycerol.
C. Amino acids. D. Monosaccharides
Answer:
C. Amino acids. D. Monosaccharides
Explanation:
I think this is the answer hope it helps!
Which process illustrates a feedback mechanism in plants?*
(1) Chloroplasts take in more nitrogen, which increases the rate of photosynthesis.
O
(2) Chloroplasts release more oxygen in response to a decreased rate of
photosynthesis
(3) Guard cells change the size of leaf openings, regulating the exchange of gases.
(4) Guard cells release oxygen from the leaf at night.
Antibody molecules and receptor molecules
Answer:
The first one is your answer
Chloroplasts take in more nitrogen, which increases the rate of photosynthesis illustrates feedback mechanisms in plants.
feedback mechanism is a form of system regulation that occur in living organs which help to return or restore the body to it's original normal internal condition for sustainability of living. It is also called homeostasis.
Chloroplasts take in more nitrogen, which increases the rate of photosynthesis illustrates feedback mechanisms in plants because nitrogen helps to increase the concentration of chlorophyll which is the green pigment house in chloroplast that aid the increase of photosynthesis rate in plants.
Therefore,Chloroplasts take in more nitrogen, which increases the rate of photosynthesis illustrates feedback mechanisms in plants.
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Three reasons why food self sufficiency Is
important ?
Answer:
FSS has become increasingly important to the political agenda in several countries, especially after the high volatility of food prices between 2007 and 2008 crisis [29-33]. Countries considered self-sufficient at the national level may have a percentage of their population with problems of hunger and malnutrition.
Explanation: