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.
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:
Practice Labeling the Cell. Label the parts of each cell.
Where would an explosive volcano MOST LIKELY occur?
A) in the middle of a large plate of earth
B) where plates are coming apart
C) near the edge of a large plate of earth
D) where large plates of earth are colliding
Answer:
d
Explanation:
Some species of sea turtles can live for hundreds of years. Which prediction regarding these species is MOST likely true?
A.
Telomerase is not expressed in their cells.
B.
Chromosomes do not replicate as they grow.
C.
Telomere length does not shorten as they age.
D.
Genes are not located near the ends of their chromosomes.
D.
Genes are not located near the ends of their chromosomes.
After the telomeres disapear the important genetic material won't be affected.
Answer:
C. Telomere length does not shorten as they age.
Explanation:
A is wrong because Telomerase is expressed in their cells.
B is wrong because chromosomes do replicate as they grow.
D is wrong because the genes are located near the ends of the chromosomes.
I took the test.
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
A young woman suffered from a severe injury to her pelvic cavity. What potential problem would her doctors be most
likely concerned about?
Answer:
diffuculty having childern
B.
Compare the following animals.
1. snake and lizard
2. fish and eel
3. dove and duck
Answer:
This is easy
Explanation:
1. They are both reptiles.
2. They are both fish.
3. They are both birds.
What type of fatty acid has one or more double bonds in its molecular structure?
A. Unsaturated
B. Saturated
C. Cream
D. Butter
Answer:
A. Unsaturated
Explanation:
Fatty Acids: Saturated fatty acids have hydrocarbon chains connected by single bonds only. Unsaturated fatty acids have one or more double bonds. Each double bond may be in a cis or trans configuration.
Got it from google
This neurotransmitter is an antagonist.
acetylcholine
both
GABA
neither
which one?
Answer:
acetylcholine
Explanation:
Acetylcholine is an organic chemical that functions in the brain and body of many types of animals as a neurotransmitter—a chemical message released by nerve cells to send signals to other cells, such as neurons, muscle cells and gland cells
Mark me as brainliest
1) What are estuaries? 2) How/why do shallow estuary waters create unique habitats for organisms living here? 3) How does the salinity in water change as you move from inland areas out towards the ocean? Be sure to include the phrase "brackish waters" in your response . 4) List 4 ways estuaries provide protection for inland areas. 5) How does dredging impact fish living in an estuary? 6) How could too many nutrients impact the natural balance in an estuary? 7) List and describe 3 ways the land terrain change as we move from Charlotte, NC to the coastal plains of North Carolina ) List 4 ways estuaries provide protection for inland areas. 9) List 5 factors that can change the flow of water through an ecosystem 10)List and describe 4 reasons estuaries are important for both wildlife and human activity
Answer:
Estuaries is a water body where freshwater from rivers and streams combines with salt water that is coming from the ocean.
Explanation:
Estuaries is a type of water body that is partially enclosed present at the coastal side where freshwater from rivers and streams combines with salt water that is coming from the ocean. Shallow estuary waters create unique habitats for organisms living there because the presence of brackish water refers to the mixture of fresh water draining from the land and salty seawater. The salinity in water change as you move from inland areas out towards the ocean because the water of inland has less salt in it while water of ocean has huge amount of salt present in it so when we move from inland to the ocean salt concentration increases in it. estuaries provide protection for inland areas by filtering pollutants, prevent shoreline erosion, flooding and storm.
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.
[____________] is the material or energy that goes into a system
Answer:
Solar energy
Explanation:
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
To test the validity of their data, scientists take what actions?
A. Repeat original experiments
B. Look for agreement in scientific journals
C. Form teams
D. Devise new experiments
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
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.
How many chromatids are found in this nucleus?
Six chromosomes in metaphase are shown. They resemble the letter X with red dots in the center.
A.
3
B.
6
C.
12
D.
24
Each chromosome has 2 chromatids so 2*6=C.12 chromatids
Answer:
C. 12
Explanation:
Each chromosome has 2 legs called chromatids. There are 6 chromosomes, so 6*2 = 12.
are all qnswer right
Answer:
yes good job!
Explanation:
Answer:
Explanation:
Yes great job
which graph best shows the motion of a car stopped at a pedestrian crossing?
When will an insect that undergoes incomplete metamorphosis develop a set of wings?
a.
after its final molt
b.
when it becomes a pupa
c.
when it breaks out of its chrysalis
d.
only insects that undergo complete metamorphosis have wings
Answer:
The answer is D not sure
Explanation:
Like those of several other insect species, the stages of growth that the nymph cricket undergoes are referred to as "instars." Crickets usually go through eight to 10 instars before reaching adulthood, which takes about two to three months. Crickets start to develop wings at about 1 month of age.
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.
Which statement about the food chain is correct?
A.
The Harpy Eagle obtains chemical energy from the Sun.
B.
The Red-eyed Tree Frog obtains chemical energy from the Squirrel Monkey.
c. The Coconut Trees obtain light from the Sun and convert it into chemical energy.
D. The Squirrel Monkey obtains chemical energy from the Grasshopper.
Answer: Letter C
Explanation: It is true trees convert the sunlight into chemical energy in a form they could use.
Competition occurs when organisms try to use the same limited resource. True or False
Answer:
the answer is
true and this organism are called
inter specific organism
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 :/
I need help asap pls!!
Answer:
it would be c because the order are the same on both
10 points
If the pH is adjusted to around neutral, most of the essential nutrients
(elements) will become available for uptake by the plant.
True
False
When there is a relationship between
two factors it is called a–
a. correlational effect.
b. positive feedback.
c. negative feedback.
d. causal effect.
correct the statment
Shoots are called crown of the tree
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.
Learn more about Proteins, here:
https://brainly.com/question/30986280
#SPJ4