Answer:
The positive control is control when there is an activator present which acts as a regulatory protein so the operon and activator binds and initiates the stimulation of transcription to express the gene. In absence of this activator or regulatory protein, the operon will be inactivated.
External environmental stimuli can lead to alteration of the positive control in prokaryotes such as excess lactose in the environment. These environmental stimuli can induce transcription in prokaryotes.
In this example, if glucose is not available in the environment, the transcription of the lac operon will be induced by the presence of lactose in the environment.
Which of the following is not a product of cellular respiration?
a. CO2
b. Energy
c. C6H1206
d. H20
Answer:
The only molecule in the group that is not a product of cellular respiration is C₆H₁₂O₆ (option c).
Explanation:
C₆H₁₂O₆ is the glucose molecule, which is an energetic substrate and not a product of cellular respiration.
Cellular respiration is the process by which, through the oxidation of glucose and in the presence of oxygen, energy is obtained in the form of ATP. The reaction that summarizes this process is:
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + Energy (ATP)↑
As can be seen in the diagram, while glucose and oxygen are substrates of the reaction, the resulting products are CO₂, H₂O and energy.
Which best defines matter?
A. Anything that takes up space and has mass
O B. Anything in the atmosphere
C. All the living things on the planet
O D. All solid objects that can be seen
Answer:
A. Anything that takes up space and has mass
Explanation:
Matter is often described as something that takes up space and has mass. Matter can be in the form of a solid, liquid, or gas, which eliminates all of the answer choices besides A.
Hope this helps :)
I need some assistance please
Vesicles are the tiny transport packages made by- A. Golgi body
B. Ribosomes
C. Chlorplasts
D. nucleolus
Answer:
a
Explanation:
Which of these is NOT part of the digestive system?
pancreas medulla
teeth
small intestine
Human cells have 46 chromosomes. Each chromosome consists of a pair of identical chromatids attached together by a structure called a centromere. Once the chromosome has split, each chromatid is called a daughter chromosome. At the end of cytokinesis how many daughter chromosomes will be found in each cell
How was the earths biosphere affected during the Precambrian era
Answer:
Some three billion years ago, the Earth's atmosphere was virtually devoid of oxygen. At about 2.4 billion years ago, oxygen was released from the seas as a byproduct of photosynthesis by cyanobacteria. Levels of the gas gradually climbed, reaching about one percent around two billion years ago.
Explanation:
Hope this helped!
what is osmosis biology
Answer:
osmosis is the movement of water molecules through a semi permeable membrane from a region of higher concentration to lower concentration
Answer:
osmosis is the movement of water molecules through a semi permeable membrane from a region of higher concentration to lower concentration
Explanation:
just did the question
Is glucose smaller or bigger than iodine?
How is the purple stem trait variation similar to the tongue-rolling trait variation?
Explanation:
Species
A group of organisms that can reproduce and produce fertile offspring (children that can reproduce themselves)
Trait
Characteristic of an organism (body part, behavior, chemical, produced)
Variation
Differences in trait expression
Inherited trait
Trait passed from parent to children (offspring)
Acquired Trait
Traits learned by/changed in an individual from interaction with the environment
Protein
A special type of biological molecule (only found in organisms) that organisms use to build, maintain, and operate the cells/tissues/organs of their bodies. (Like a prepared meal)
DNA
The biological molecule that serves as the chemical instructions or blueprints for building all the proteins an organism needs to build its body and survive. (Like words in a cookbook)
Gene
A section of a DNA molecule that serves as the instructions to build one protein. (Like one recipe in a cookbook)
Chromosomes
Large packages of coiled DNA molecules that are passed from parents to children. (Like different chapters on a cookbook)
Pollen
Flowering plant sperm (male sex cell)
How many valence electrons does Neon have and does it have cations and anions???
Answer:
Neon has eight valence electrons and it does not have cations or anions.
Explanation:
Neon is a noble gas, meaning it has already fulfilled the octet rule and has eight electrons in its valence electron shell. Hence, it does not want to lose or gain any more electrons, and does not have cations or anions.
Hope this helped!
Answer:
Neon has eight valence electrons and it does not have cations or anions.
Explanation:
Which statement is true of recessive sex-linked traits such as color
blindness?
A: males inherit them only from their mothers
B: only males inherit them
C: females inherit them only from their fathers
D: females never inherit them
Answer:
B. only males inherit them
Explanation:
males are never a carried for x-linked trait.
Can someone please tell me if the arrows in this food web are pointing to the right animal :)
Answer:
Everything seems correct except the barracuda dosen't have any prey. I don't have access to the mentioned marine biologist's research journal essay, so i don't know about anything else.
Explanation:
20 POINTS
1. A long chain of monomers that contains ribose *
a DNA
b RNA
c neither
2. a long chain of amino acids that contains uracil
a DNA
b RNA
c neither
please answer both!!
Bart believes that mice exposed to radio waves will become extra strong (maybe he's been reading too much
Radioactive Man). He decides to perform this experiment by placing 10 mice near a radio for 5 hours. He compared
these 10 mice to another 10 mice that had not been exposed. His test consisted of a heavy piece of wood that
blocked the mouse food. He found that 8 out of 10 of the radio waved mice were able to push the wood away. 7 out
of 10 of the other mice were able to do the same.
Answer:
if 8/10 radio wave mice were able to move the piece of wood, and 7/10 of non-radio wave mice were also able to move the piece of wood, then the radio waves have no effect upon the result.
Explanation:
who is popular know by the name `Kavindra´ in Neali literaturewho is no by the
Answer:
i dont think the question is finished.
Explanation:
If bugs did disperse what are the costs and benefits of accepting a host plant of either species?
Answer:
How could a dispersing bug know what species of plants it would be settling on? A bug can know what bug it is landing on by sight, smell and taste. All insects disperse, even those without wings, so the question contains a false assumption and is therefore unanswerable. In general, the contribution of any particular trait to an organism's fitness depends on the details of the life cycle. Without knowing those details, it's impossible to say.
But for benefits, there are a lot of benefits of accepting a host plant. Some of the benefits are:
It is an avenue or a strategy for egg laying females when larvae must feed on plant so as to complete development bugs or insects are attracted to flowers due to its scent or brightly coloured petals. These flowers produce a sweet liquid, called nectar, which the bugs or insects feed on.Learn more from
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lii
06.06 Balancing the Forces
Science Grade 5 v17 (GS)- Steinmetz / Module 06: Force and Motion
6. (06.06 MC)
Observe the bike rider in motion. Identify the image that shows how the forces need to change so that he is no longer
In motion
Answer:
c
Explanation:
i think
Answer: its D
Explanation:
Fill in the chemical equation using the following list of chemicals: H20, O2, CO2,
C6H1206. (2pts)
6
+ 6
(light energy)
6
Hi there!
Photosynthesis involves carbon dioxide (CO2) and water (H2O) as the reactants with glucose (C6H12O6) and oxygen (O2) as the products. We can write a basic chemical equation:
[tex]CO_{2} + H_{2} O - (light) -> C_{6} H_{12} O_{6} + O_{2}[/tex]
The equation has to be balanced, so the final equation for photosynthesis would be:
[tex]6CO_{2} + 6H_{2} O - (light) -> C_{6} H_{12} O_{6} + 6O_{2}[/tex]
The chemicals in correct order are:
[tex]CO_{2}\\H_{2}O\\ C_{6}H_{12}O_{6}\\ O_{2}[/tex]
A type of cell division in which the resulting cells have half the
chromosome number of the parent is called...
When it is winter in North America it is summer in South America. Explain why this happen.
Answer:
north america is on the northern hemisphere, so we get more direct sunlight when the southern hemisphere (south america) gets less direct sunlight and visa versa.
Explanation:
North america is on the northern hemisphere, so we get more direct sunlight when the southern hemisphere (south america) gets less direct sunlight and visa versa.
What are the hemispheres of earth?Any circle drawn around the Earth divides it into two equal halves called hemispheres. There are generally considered to be four hemispheres: Northern, Southern, Eastern, and Western.
Hemisphere comes from the Greek, and combines the prefix hemi-, for "half," with sphere, or "perfectly round ball." We talk about the earth as divided at the equator into the northern and southern hemispheres.
It is important because it brings about differences in the climates of the Northern and Southern hemisphere because of the Earth's seasonal tilt towards and away from the sun.
Learn more about hemispheres:
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How can we measure our energy use?
Answer:
it is measure in kilo bytes, gigabytes
What is formed by organized groups of cells with similar structures and a common purpose?
A
organ
00
digestion
С
circulation
D
tissue
Answer:
Cells with similar structures and a common purpose that are organized form a tissue (option D).
Explanation:
Biological tissues are structures originated by the grouping of differentiated cells, which are organized and distributed in such a way that they can fulfill a function in a coordinated way. A characteristic of tissues is that all the cells that constitute them have the same embryonic origin.
An example of a tissue is nervous tissue, formed by neurons, specialized cells that when united form it and fulfill the same function.
The functions of cells are mainly multiplication, development and differentiation, in addition to their ability to group together to form tissues.
The other options are not correct because:
A. Organs are formed from differentiated tissue.
B and C. Digestion and circulation are functions that depend on the organs of the digestive and circulatory systems, respectively.
Which non renewable resource do you think should be decreased? How can it be done?
Which Renewable resource could be increased? How do you think it should be done?
Giving 40 points (please only answer the questions)
Answer: Wait so you dont need these anymore?
Explanation:
How are watersheds and aquifers connected to the water cycle?
Answer:
Ground water flow
Explanation:
Watershed and Aquifers are connected to the water cycle by groundwater that flows under ground, so water is always under the ground.
Which of the following is true about cells?
A.
In general, eukaryotic cells do not have a true nucleus or membrane-bound organelles, whereas prokaryotic cells contain both a nucleus and organelles enclosed by membranes.
B.
Neither prokaryotic cells nor eukaryotic cells ever contain both a true nucleus that is well-defined and organelles that are separated from the cytoplasm by membranes.
C.
Both eukaryotic cells and prokaryotic cells always contain both a true nucleus that is well-defined and organelles that are separated from the cytoplasm by membranes.
D.
In general, prokaryotic cells do not have a true nucleus or membrane-bound organelles, whereas eukaryotic cells contain both a nucleus and organelles enclosed by membranes.
Answer:
d
Explanation:
d 100% literally was just learning about this
What happens to the total blood flow during heavy exercise compared to at rest?
When a therapist uses techniques from various types of therapy, the person is said to be using
biomedical therapy.
an eclectic approach.
unconditional positive regard.
psychoanalysis.
Answer:
An eclectic approach
Explanation:
An eclectic approach is an approach that combines multiple different approaches. In psychotherapy, an eclectic approach can be described as one that relies on multiple theoretical orientations and techniques. This allows the therapist to be flexible and use methods that best suit their client's individual needs.
An eclectic approach combines concepts from different techniques, generally using one of them as a frame of reference.
An eclectic approach consists of using techniques of different orientations.
A common criterion in technical eclecticism is the level of efficacy demonstrated empirically.In this case, we seek to find the most appropriate treatments for each situation, according to scientific research.Therefore, we can conclude that an eclectic approach refers to a therapeutic approach that consists of using a variety of techniques and procedures regardless of theory.
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Proteins whose conformations change when they are bound to an effector molecule are called
A. activator proteins.
B. regulatory proteins.
C. enzymes.
D. allosteric proteins
E. Inhibitory proteins
Answer:
Inhibitory proteins
Explanation:
Allosteric site = a binding site on the protein other than the active site
Allosteric effector molecules don't resemble the structure of the substrate. So, they cannot bind to the active site. Instead, they bind to an allosteric site and alter the conformation of the protein such that the activity of the protein is affected.
Allosteric effectors can be activators or inhibitors, i.e. the conformational change in the structure can activate or repress the protein function.
Allosteric proteins can also be regulatory proteins (Activators or inhibitors) or enzymes.
What is the theme for Marigolds. Show evidence drone the story.
Answer:
The main theme or message in the story "Marigolds" is the importance of empathy and compassion. In the story, Lizabeth is reflecting on a crossroads in her life, an incident that marked the change from child to woman.
Explanation: