During the bacterial transformation lab, what was the primary purpose of including Ampicillin in the agar
Answer:
allows for selection of E. coli mutants that successfully picked up the plasmid
Explanation:
Ampicillin is a penicilin type medicine or antibiotic that can treat the infections caused by bacteria.
In bacterial transformation lab, the ampicillin is added in the agar in order to select the E.coli mutants which picked the plasmid and have gained ampicillin resistance gene. Bu doing so, it causes the production of the enzymes that prevents the activity of the ampicillin as well as the bacteria survive. The ampicillin antibiotics present in the agar kills the bacteria without having the ampicillin resistance gene.
How does petrification link to how the oldest fossils are found in the lowest rock
Answer:
Explanation:
In geology, petrifaction or petrification is the original material and the filling of the original pore spaces with minerals. Petrified wood typifies this process, but all organisms, from bacteria to vertebrates, can become petrified. Petrification (petros means stone) occurs when the organic matter is completely replaced by minerals and the fossil is turned to stone. This generally occurs by filling the pores of the tissue, and inter and intra cellular spaces with minerals, then dissolving the organic matter and replacing it with minerals. Researchers at UCLA and the University of Wisconsin–Madison have confirmed that microscopic fossils discovered in a nearly 3.5 billion-year-old piece of rock in Western Australia are the oldest fossils ever found and indeed the earliest direct evidence of life on Earth. The study, published Dec.
Why is Cellular Respiration so important?
A. It provides all the sugar for the rest of the cell
B. It provides all the power for the rest of the cell
C.
It makes sure the cell is safe
D.
It keeps bad things out and good things in the cell
Some species of sharks are on the verge of extinction because of shark finning. Washington, California, Guam, and Hawai'i prohibit selling, trading, and possessing shark fins. Do you believe sharks should be protected? Should the United States and other countries support this ban? Why or why not?
Answer:
1.yes
2.yes
3. if we don't interact with sharks they might not interact with us as often
Explanation:
which scientist developed a method to describe the consistency of the fine grained soils with varying contents?
Answer:
Albert Atterberg (Swedish) scientist
When eating food, what anatomical and functional divisions of the nervous system are involved in the perceptual experience?
Answer:
Taste afferents reach the geniculate, inferior petrosal, and plexiform ganglia and then proceed to the brain stem to synapse in the solitary tract of the medulla oblongata. Nerve branches branch from here to the lateral hypothalamus, the amygdala, and the thalamus
Explanation:
The taste sensitivity of the tongue is conveyed by three different cranial nerves (VII, IX and X). The taste buds of the anterior two thirds of the tongue are innervated by the chorda tympani nerve, a branch of the facial. The facial nerve also collects the taste sensitivity of the soft palate through another of its branches, the greater superficial petrosal nerve.At the thalamic level, cross relationships are established with the contralateral gustatory nucleus and convergence with other lingual and olfactory afferences of the piriformis cortex. Third-order neurons are sent from the thalamus to the parietal cortex. Somatosthetic fibers have mainly contralateral projections, while taste projections are ipsilateral.
The sensation associated with taste when eating food is primarily sensed by nerves that are located in the peripheral nervous system (PNS) and they are involved in sensory and somatic functions.
A nervous system refers to a neural network that comprises nerve cells and fibers, which are used for the transmission of neural impulses (signals) around the various body parts of a living organism.
In living organisms, the nervous system is made up of two (2) major components and these are;
Central nervous system (CNS)Peripheral nervous system (PNS)Generally, the peripheral nervous system (PNS) is the anatomical and functional divisions of the nervous system that is responsible for perceptual experience when eating food. Thus, the sensation associated with taste when eating food is primarily sensed by nerves that are located in the peripheral nervous system (PNS).
The PNS nerves that are involved in sensory and somatic functions include:
Cranial nervesPeripheral nervesSpinal nervesRead more on PNS nerves here: https://brainly.com/question/10953134
correct the statment
Shoots are called crown of the tree
These pellets are not eliminated as _________________, but are regurgitated through the ___________________.
Answer:
These pellets are not eliminated as feces, but are regurgitated through the mouth. Pellets are not found exclusively within the owl families. There are many species of birds known to regurgitate pellets: hawks, eagles, kites, harriers, falcons, and even robins are some of the more familiar ones.
tell me if im wrong :/
Question 1 (1 point)
What is a byproduct? (Select the best answer.)
Something produced during the production of something else
A product that doesn't have a negative impact on the environment
A study of how much environmental impact a product causes
Question 2 (1 point)
What is embodied energy? (Select the best answer.)
The energy it takes to dispose of a product
The energy it takes to perform a life cycle analysis
A measurement of how much energy is consumed through a product's life cycle
Question 3 (1 point)
Which of the following are ways in which the industrial revolution impacted the world? (Select the three best answers.)
There was a decrease in pollution and waste.
People experienced more repetitive strain injury.
Products took less energy to produce.
More people moved from the country to cities.
Products became more expensive.
What is production energy efficiency? (Select the best answer.)
Question 4 options:
A measurement of how much energy is used in the process of making a product
A measurement of how quickly an assembly line can produce a product
A measurement of how much energy is consumed through a product's life cycle
The correct answers are:
1. A byproduct Something produced during the production of something else
2. Embodied energy is a measurement of how much energy is consumed through a product's life cycle
What is a byproduct?A byproduct is a secondary good that results from a manufacturing procedure, industrial process, or chemical reaction; it is not the main good or service being created.
The industrial revolution has impacted the world in the following ways:
More people moved from the country to cities.Products took less energy to produce.There was a decrease in pollution and waste.Production energy efficiency is a measurement of how much energy is used in the process of making a product.
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[____________] is the material or energy that goes into a system
Answer:
Solar energy
Explanation:
Some people see hydroelectric energy, energy harnessed from water
movement, as a clean alternative to fossil fuels. Others believe that utilizing
this renewable energy source is dangerous for the salmon populations that
rely on water sources for migration. Which environmental factor should be
taken into consideration when deciding to use renewable sources of energy
like hydroelectricity?
a. cost savings from switching from fossil fuels to renewable energy
increases in carbon emissions due to the production of new energy
systems
decreases in renewable energy as they are being used for human
sustainability
d. fluctuations of limiting factors in the ecosystem affected by the new
source of energy
C.
The correct answer is D. Fluctuations of limiting factors in the ecosystem affected by the new source of energy.
Explanation
As is mentioned in the statement, the energy from a hydroelectric plant is obtained through the movement of water that makes move some blades which produce energy with it. lLater, this is transformed and transported to the cities. However, to obtain these clean natural renewable resources, it is necessary to take into account what environmental factors may be affected with the implementation of a hydroelectric plant, because the operation of hydroelectric can affect natural processes such as fish migration, patterns of reproduction, feeding, among others that take place in a river, having negative consequences for these species which would cause an imbalance in nature. According to the above, the correct answer is D. Fluctuations of limiting factors in the ecosystem affected by the new energy source.
Please help me this is hard for me
Answer:
D
Explanation:
It is the bottom of the food chain
Answer:
D
Explanation:
It produces food for other animals
Which sampling site had the highest proportion of heavily infected monarchs?
A. Mexico
B. Guif Coast
C. Northern United States
D. South America
Answer:
The correct answer is option D "Mexico"
Explanation:
In February 2008, we gathered grown-up rulers at two discrete overwintering destinations in the Neovolcanic Piles of Focal Mexico:
(I) Sierra Chincua
(ii) Cerro Pelon.
The two locations are situated in Michoacan, Mexico. Butterflies were gathered utilizing standard flying nets with expandable posts.
The commonness of monarchs vigorously infected with OE at every one of these two areas in 2008 was 14.4 and 13.6%.
From ten imitate bunches (five groups for every site), we arbitrarily chose sound and tainted butterflies following starter screening of parasite tests in the field, for a sum of 75 solid and 100 intensely infected monarchs.
Two true-breeding stocks of pea plants are crossed. One parent has red, axial flowers and the other has white, terminal flowers; all F1 individuals have red, axial flowers. The genes for flower color and location assort independently. If 1,000 F2 offspring resulted from the cross, approximately how many of them would you expect to have red, axial flowers?
Answer:
hi
Explanation:
190 is the red terminal
Can someone be able to help, I’ll give brainly and extra points! Plus a 100 points! Ty!:)
Answer:
I can't see the media clearly:'(
Practice Labeling the Cell. Label the parts of each cell.
When a tree is cut and burned, it is converted into which of the following?
carbon reservoir
carbon cycle
carbon source
carbon sink
Answer:
Carbon Source
Explanation:
When trees are burnt, they release all the carbon inside them. Therefore, making it a source.
Answer:
Carbon Source
Explanation:
Fire takes up oxygen and releases all of the Carbon from inside of the tree.
what are the causes of antibiotics resistance ?
Answer:
Over-prescription of antibiotics.
Patients not finishing the entire antibiotic course.
Overuse of antibiotics in livestock and fish farming.
Poor infection control in health care settings.
Poor hygiene and sanitation.
Explanation:
Answer: Antibiotic resistance has become a global threat, and with Antibiotic Awareness Week, it is important to understand the series of events that have led the world to this predicament. Originally touted as a miracle discovery, we are seeing that there can be too much of a good thing.
Explanation: The use of antibiotics has saved millions of lives, but its pervasive use to treat any infection, whether serious, minor, or even viral has lead to the increase in antibiotic resistance. Antibiotics strictly target bacteria, but it is sometimes difficult to differentiate between viral and bacterial infections without costly tests. It is often less time-consuming and more cost effective to proactively prescribe antibiotics, rather than take precautions and prescribe only the correct treatment.
Another issue with antibiotics is the inability to monitor patient intake. Antibiotic dosages are designed to eradicate entire populations of the pathogens. When antibiotics are not taken for the entire prescribed course, pathogenic bacteria can adapt to the presence of low dose antibiotics, and eventually form a population that is completely resistant to the antibiotic regardless of the dosage.
Antibiotic usage is also not exclusive to humans. Every day, antibiotics are used to treat livestock and fish to prevent infections. Similar to overuse in humans, uncontrolled use of antibiotics creates a reservoir of bacteria that could become resistant, thus rendering the antibiotic useless.
Where should sinks be available for food service
workers?
Outside the food preparation sink
Separate sink located in the food preparation
area
.
Inside the customer bathroom
a
In the employee breakroom
Answer:
for me I think
Explanation:
In the employee break room
Capillaries are blood vessels that *
A.) deliver blood to the cells of the body
B.) contain striated muscle
C.) carry blood toward the heart
D.) readily exchange materials between the blood and body cells
Answer:
D.
Explanation:
The primary function of capillaries is the exchange of materials between the blood and tissue cells.
i need the ansewer to this but i scammed these points any way
Which statement describes carbohydrates?
Carbohydrates store and transmit an organism’s genetic information.
Carbohydrates provide energy to organisms.
Carbohydrates help with an organism’s tissue growth and repair.
Carbohydrates provide an organism with long-term energy storage.
The Sun's luminosity is greatest when there are few or no sunspots on the Sun. True or false
Answer:
False
Explanation:
I need help asap pls!!
Answer:
it would be c because the order are the same on both
5.07 Graded Assignment: Locating the Epicenter Exploration
Assignment: Locating the Epicenter Exploration
HELP PLEASE
Answer:
FIND IT
Explanation:
Which TWO digestive juices are secreted into the duodenum?
Answer:
Liver, and Pancreatic Bile.
Explanation:
Hope this helps. :)
Answer:Pancreatic juice is secreted by the pancreas. It contains proenzymes- trypsinogen, chymotrypsinogen and procarboxypeptidase and enzyme elastase. All these are concerned with digestion of proteins. Trypsinogen is the constituent which is poured into the duodenum in humans. Or it might be Pancreatic juice is secreted by the pancreas. It contains proenzymes- trypsinogen, chymotrypsinogen and procarboxypeptidase and enzyme elastase. All these are concerned with digestion of proteins. Trypsinogen is the constituent which is poured into the duodenum in humans.
Explanation:
For the proteins you researched, how does the structure help the protein perform its function?
Answer: Protein structure depends on its amino acid sequence and local, low-energy chemical bonds between atoms in both the polypeptide backbone and in amino acid side chains. Protein structure plays a key role in its function; if a protein loses its shape at any structural level, it may no longer be functional.
Hope this helps.... Stay safe and have a Merry Christmas!!!!!!! :D
The relationship between the structure and function of proteins is complex. The way a protein interacts with other molecules in the cell depends on the precise arrangement of amino acids and the resulting three-dimensional form.
For example, the structure of a protein's active site enables it to bind to particular substrates and act as an enzyme by catalyzing chemical reactions. Signals can be transmitted by receptor proteins because of their binding sites, which fit into particular molecules like keys to a lock. Collagen and other structural proteins form the fibrous network that gives strength and support to tissues.
Molecules can travel across membranes more easily thanks to unique channels or binding sites on transport proteins. A protein's stability, folding and ability to carry out its intended function all depend on its overall structure.
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1. What role do the oceans play in water cycle?
2 Where do you think sublimation of snow to water is most common?
Please help me my brain is fried from all this homework
Answer:
1. oceans act as reservoirs
2. sublimation of snow to water is most common as it falls to the ground for clouds.
Explanation:
Examine the diagram. A specific location on Earth is identified by
the letter X.
Which of the following is an accurate description of the Earth's
location by the letter X?
Answer:
The answer is helping hands
1. List the 5 types of tissue found in an animal’s body.
Answer:
There are four types of tissues found in animals: epithelial tissue, connective tissue, muscle tissue, and nervous tissue. In this lab you will learn the major characteristics of each tissue and examine various types of each tissue under the microscope.
Explanation: I don't know the #5 but there are four of them
A well-known cell-survival pathway involves a kinase called _______ that is activated by the _______, leading to a larger chance that the cell will survive a stimulus that would normally lead to its destruction
Answer:
Protein kinase B (PKB); 3,4,5-triphosphorylated phosphoinositide (PIP3)
Explanation:
Protein kinase B (PKB) is a kinase protein involved in receptor tyrosine kinase regulatory pathways. This enzyme attaches ATP-phosphate groups to serine/threonine residues in order to alter the activity of target protein substrates. PKB is involved in many cellular processes including transcription, cell proliferation and apoptosis. PKB is activated by the 3,4,5-triphosphorylated phosphoinositide (PIP3) enzyme and then this kinase propagates the signal to Akt (another serine/threonine kinase) by phosphorylation of its catalytic domain. The Akt/PKB signaling pathway is well-known to promote cell survival in response to extracellular signals/stimuli.