the main form of glucose repression in the lac operon is
Answer:
Extracellular glucose affects the lactose operon activation by inhibiting
cells must control gene expression so that
What does a transformed e. Coli cell contain that a normal e. Coli cell does not?.
A transformed e. Coli cell contain plasmid with an ampicillin resistant gene while a normal e. Coli cell does not.
What is a Transformed bacteria?This is the type of bacteria which has been modified through the introduction of a foreign DNA.
The DNA is introduced to the e.coli which then makes it to be ampicillin resistant for research works.
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3.2 The data in the table below was recorded during the investigation: Distance in cm 10 20 30 40 Rate of photosynthesis (Number of bubbles per minute) 27 23 16 7 50 2. 3.2.1 Identify: (a) the dependent and (b) independent variables in the experiment. (1) (1) 3.2.2. Draw a line graph to represent the data obtained during the experiment (6) (2) 3.2.3 What conclusion can be drawn from the results above?
Answer:
i dont konew
Explanation:
which of the following statements describes pepsin
a it is manufactured by the pancreas
b it helps stabilize fat water emulsions
c it splits maltose into monosaccharides
d it begins the hydrolysis of protein in the stomach
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D. it begins the hydrolysis of protein in the stomach
One of the benefits of the degeneracy of the genetic code is that:.
Answer:
degeneracy allows multiple codon triplets to code for a single amino acid.
Explanation:
Not sure of the options, but degeneracy allows multiple codon triplets to code for a single amino acid. Like UAU and UAC both code for tyrosine.
Most falcons, a type of bird, lay two to four eggs at a time. Those falcons that produce fewer or more than this have reduced fitness. Which of the following selection best describes this?
a. directional selection
b. disruptive selection
c. stabilizing selection
Answer: C. Stabilizing selection
Explanation:
Why are pigments important to the process of photosynthesis.
Answer:
The importance of pigment in photosynthesis is that it helps absorb the energy from light. The free electrons at the molecular level in the chemical structure of these photosynthetic pigments revolve at certain energy levels.
Explanation:
Temperature, cloud cover, and thunder are all examples of
O a. storms
O b. weather
O c. climate
O d. barometric pressure
Temperature, cloud cover, and thunder are all the examples of weather. Thus, the correct option is B.
What are the weather conditions?Weather is the state of the atmosphere. This is the degree to which it is hot or cold, wet or dry, calm or stormy, clear or cloudy at a geographical location. On the Earth, most weather phenomena occur in the lowest layer of the planet's atmosphere, the troposphere, just below the stratosphere of the Earth.
Weather refers to the day-to-day temperature, precipitation, and other atmospheric conditions, whereas the climate is the term for the averaging of atmospheric conditions over longer time periods.
Weather includes the sunshine, rain, cloud cover, winds, hail, snow, freezing rain, flooding, ice storms, thunderstorms, steady rains from a cold front or warm front, excessive heat, and heat waves.
Therefore, the correct option is B.
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What is it called when a species
completely dies off?
Helllllppppp
Answer:
Extinction
Explanation:
Extinction is a procedure in which reinforcement of a previously reinforced behavior is discontinued; as a result, occurrences of that behavior decrease in the future.
1. Briefly explain how multicellular organisms can develop from a single cell:
Answer:
Plants, animals and fungi are the most spectacular and complex achievements of this kind. There are essentially two ways to make a simple multicellular entity out of single cells: either a single cell divides and its offspring stick together, or several solitary cells aggregate to form a colony
Explanation:
Which force most likely created this mountain?
compression
gravity
shearing
tension
Answer: Compression
Explanation: got it right on edge
Which gland is responsible for production of estrogen and ova?.
Answer:
Ovaries
The ovaries are small, oval-shaped glands that are located on either side of the uterus. The ovaries produce eggs and hormones.
what are the major schools of thought on personality
HELP PLEASEEE!!!
Answer:
Structuralism and Functionalism
Explanation:
Structuralism is widely regarded as the first school of thought in psychology. This outlook focused on breaking down mental processes into the most basic components. Major thinkers associated with structuralism include Wilhelm Wundt and Edward Titchener.
why is a buffalo more adapted for wet conditions?
Answer:
It is because of its morphological and anatomical characteristics that the buffalo is so well suited to hot and humid climates and muddy terrain.
Some cells surround and take in materials by the process of….?
cell surrounds and takes in material from environment.
a protein produced by the mutated sequence will differ in what?
By changing a gene's instructions for making a protein, a variant(mutated protiens) can cause a protein to malfunction or to not be produced at all. When a variant alters a protein that plays a critical role in the body, it can disrupt normal development or cause a health condition.
50 points!!
What type of nerve ending senses where parts of the body are located?
mechanoreceptors
pain receptors
proprioreceptors
thermoreceptors
Answer:
it is near the skins surface
Explanation:
and there based on morphology like so you feel warmth cold and freezing sweating all
Type of Receptor Location Sensation
Ruffini's corpuscles Dermis Touch, pressure, propioception
Nerve ending Hair follicle Touch
Cold receptor Dermis Cold
Warm receptor Dermis Warmth
-526073
Answer:
proprioreceptors
Explanation:
What is the ocean melting greenlands mission
Answer global warming
Explanation:
because you a cougar
How does the carbon locked in shells of marine organisms move back to the atmosphere?
A.
through subduction of deposits and volcanism
B.
through the process of respiration in these organisms
C.
through death and decomposition
D.
through the microbial process of ammonification
E.
through chemical reactions in acidifying oceans
IT'S NOT B OR C
Answer:
Explanation:
A.
through subduction of deposits and volcanism
Tree squirrels can have different fur colors.
Squirrels live in forests where foxes also live. Foxes hunt squirrels for food. Squirrels that have fur the same color as the trees are harder for the foxes to see and catch.
[IMAGE ONE]
The diagram above shows a population of squirrels that lived in a forest. Scientists had previously only seen brown and gray squirrels in this forest; they had never seen squirrels of any other color.
The diagram below shows how the population changed after many generations.
[IMAGE TWO]
How did the color of the trees in the squirrels’ environment change? Explain what happened to the squirrels over many generations.
Answer:
The gray squirrels were easy to see and catch so they died quickly and the population dwindled. The brown squirrels were probably almost the same color as the tree so they were harder to see and catch. The remaining gray squirrels ended up having no other options than to mate with brown squirrels, which probably made appear black squirrels and since the black squirrels population raised, means they are harder to see and be caught by foxes.
How the trees became more black too? I have no idea, sorry.
Explanation:
squirrels: brown, gray
Derived from a scandinavian word, a skulk is the group or collective name for what animal?.
Answer:
Explanation:
-The group of foxes is called skulk:-)-
Atoms of the same element with different numbers of neutrons are called ______.
A) Downstream
B) Meltdown
C) Turbine
D) Ethanol
E) Passive solar cooling
F) Utility
G) First Law of Energy
H) Refinery
I) Isotopes
J) Second Law of Energy
Answer: I) Isotopes
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the structure labeled 2 represents a molecule of
a
DNA
b
mRNA
c
tRNA
d
rRNA
Answer:
The structure labeled 2 is tRNA, transfer RNA
what is needed to create a self-sustaining ecosystem inside of a dome?
Give an example of a negative feedback loop.
Which scientist proved the existence of a virus as a new type of pathogen?
Answer:
Dmitri Ivanovsky
Explanation:
Dmitri Ivanovsky utilized one of these filters in 1892 to demonstrate that despite being filtered, sap from a diseased tobacco plant remained infectious to healthy tobacco plants. The filtered, infectious substance was dubbed a "virus" by Martinus Beijerinck, and this discovery is regarded as the origin of virology.
a
3. Choose the correct answer.
In plant cells the pigment that allows for the food-making process is:
chlorophyll
glucose
carbon dioxide
O cellulose
oxygen
Answer
chlorophyll
Explanation:
Chlorophyll is a pigment that gives plants their green color, and it helps plants create their own food through photosynthesis
How is a facial expression similar to gene expression?
Explanation:
But researchers in Israel have done a study showing that families have characteristic facial expressions, ones even shared by blind members of the families. The results suggests that such expressions may be inherited and thus under some genetic control.
What is the genotype of a true
breeding tall plant in Mendel's
cross?
A. Tt
B. TT
C. tt
Answer:
The genotype of a true breeding tall plant in mendel's cross is TT
The genotype of a true breeding tall plant in mendel's cross is TT. Thus, option B is correct.
What is Anabolic hormone ?Anabolic hormone has the one that has been involved in the formation of some specific substance just inside the body. Thus it can include repair of the damaged tissues as well as the growth of the muscles as well. There are the examples of the anabolic hormones which are insulin, growth hormones, testosterone, etc.
Insulin has been considered as the sugar regulatory hormone which is made up of the polypeptide chains. It has been called an anabolic hormone because it will promotes the uptake of the glucose by the cells in order to reduce the blood glucose levels. This promotes the formation of the glucagon which is a stored form of energy that can be result in increase muscle mass.
Therefore, The genotype of a true breeding tall plant in mendel's cross is TT. Thus, option B is correct.
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