Answers
Related Questions
PLS HELP
According to the model represented in the diagram, which of the following would cause the cell to not express the lacZ, lacY, and lacA sequences?
A. Binding the RNA polymerase to the gene
B. Removing the Inducer
C. Preventing the repressor from binding to the lac operon
Answers
Answer:
the answer would be a
Explanation:
When the inducer is removed from the lac operon model, then this will result in hindering the expression of lacZ, lacY, and lacA sequence in the cell. Thus, the correct option is B.
What is lac operon?Lac operon is a model which contains genes that are involved in metabolism of the cell. The genes are expressed only when the lactose is present in the medium and glucose is absent. The lac operon is turned on and off in response to the glucose and lactose levels in the medium: catabolite activator protein (CAP) and lac repressor. The lac repressor is responsible for blocking the transcription of the operon.
The lac operon can be switched off i.e., the expression of genes can be stopped by removing the inducer molecule from the medium.
Therefore, the correct option is B.
Learn more about Lac operon here:
https://brainly.com/question/29737281
#SPJ2
Please help me asap!!!!!
Which car has the most momentum?
A. A 1,820 kg car that is traveling east at 30 m/s
B. A 730 kg car that is traveling north at 90 m/s
C. A 2,270 kg car that is stationary
D. A 1,460 kg car that is traveling south at 80 m/s
Answers
Answer:
The answer would be B because the light a object the more acceleration can accumulate
Explanation:
What term is used to describe organisms that decompose organic remains from dead organisms as an energy source
Answers
Answer:
Decomposers are made up of the FBI (fungi, bacteria and invertebrates—worms and insects). They are all living things that get energy by eating dead animals and plants and breaking down wastes of other animals.
1. When you cover the leaf in aluminum foil, what are you keeping from
the leaf?
oxygen
chlorophyll
sunlight
iodine
Answers
Answer:sunlight
Explanation:
Answer:
You are blocking it from sunlight
Explanation:
The leaf needs sunlight to carry out photosynthesis. it also stops it from inhaling carbon dioxide
What is the term used to describe any living thing?
Answers
Answer: The term used for living things is "Organism"! :)
Which of the following is an incorrect description of oil and its impact on the environment.
Oil spills increase reproduction of algae species.
Oil coats sand and plants, making habitats unlivable.
Oil can go through biomagnification in the food chain.
Oil clogs the gills of fish and coats the feathers of birds.
Answers
Answer:
I believe it is there first answer.
Oil can go through biomagnification in the food chain is an incorrect description of oil and its impact on the environment. So, the correct option is (C).
What is Oil and its effects in the environment?The oil contains many different toxic compounds that can cause serious health problems such as heart damage, stunted growth, immune system effects and even death.
Oil and gas drilling has serious impacts on our wildlands and communities. Operating round-the-clock drilling projects is causing pollution, fueling climate change, disrupting wildlife and damaging public lands that were set aside for the benefit of all people.
Many other environmental impacts include the greenhouse effect, acid rain, poor water quality, groundwater contamination, among others, which may contribute to the loss of biodiversity as well as the destruction of ecosystems.
Thus, oil can go through biomagnification in the food chain is an incorrect description of oil and its impact on the environment. So, the correct option is (C).
Learn more about Oil and its impact, here:
https://brainly.com/question/28715932
#SPJ2
What is the relationship between tissues and organs. A) organs are formed from tissues. B) tissues are formed from cells. C) organ system are formed from organs. D) none of the above.
Answers
Answer:
A
Explanation:
Organs are formed by tissues, tissues are formed by cells
PLEASE HELP! GIVING BRAINLIEST!
Answers
Answer:
Thermal energy is the energy that is contained and a part of heat.
Conduction is when heat or electricity moves through a solid object.
Radiation is energy that comes from a source and travels through space at the speed of light.
Convection is the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity this causes a heat transfer.
which spinal nerve roots carry sensory nerve signals?
Answers
Answer:
Explanation:
I think the answer is posterior
What are the 4 biome (living earth) boundaries?
Answers
grassland, forest, desert, and tundraAnswer:
Explanation:
Which gas began to increase in the atmosphere as a result of photosynthesis by autotrophic prokaryotes approximately 2.7 billion years ago
Answers
Which molecule made during photosynthesis is the best source for carbon and hydrogen atoms used for cellular activities?
O carbon dioxide
O oxygen
O sugar
water
Answers
Answer:
carbon dioxide
Explanation:
During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.
The cAMP receptor protein (CRP) is said to be responsible for positive regulation of the lac operon because ________.
Answers
The cAMP receptor protein (CRP) is responsible for the positive regulation of the lac operon because CRP binds to a specific DNA sequence close to the lac promoter, causing increased transcription.
The repressive effect of glucose is effected through a protein called catabolite activating protein (CRP) and cAMP.
The catabolite activating protein (CRP) is a dimer that, when it binds to cAMP, activates and stimulates the transcription of the lactose operon genes.The activator protein CRP-cAMP is necessary for the binding of RNA polymerase to the promoter of the lactose operon genes.Therefore, we can conclude that cAMP and its receptor protein and its binding to the promoter of the lac operon, causes a DNA twist that facilitates the binding of RNA polymerase to the promoter.
Learn more about cAMP receptor protein here: https://brainly.com/question/15000884
Which of the following correctly lists animals in order of increasing complexity?
A. Diploblast, triploblast with complete coelom, triploblast with incomplete coelom.
B. Triploblast with coelom, triploblast with no coelom, diploblast with coelom.
C. Diploblast, triploblast with incomplete coelom, triploblast with complete coelom.
D. Diploblast with coelom, triploblast, triploblast with coelom.
Answers
Diploblastic and triploblastic embryos.
During embryogenesis, diploblasts develop two embryonic germ layers: an ectoderm and an endoderm or mesendoderm. Triploblasts develop a third layer—the mesoderm—which arises from mesendoderm and resides between the endoderm and ectoderm.
- BRAINLIEST answerer
the elongation of the leading strand during dna synthesis
Answers
Answer:
Depends on the action of DNA Polymerase
Explanation:
The ribosome continues to translate each codon in turn throughout the elongation phase. A bond known as a peptide bond is used to connect each relevant amino acid to the expanding chain. Up until all the codons are read, elongation continues.
What leading strand during DNA synthesis?The two strands that make up DNA are the leading, continuous strand, which moves toward the replication fork, and the trailing, discontinuous strand, which moves away from the replication fork.
A process known as elongation occurs when more nucleotides are inserted, lengthening the RNA strand. RNA polymerase “walks” along one strand of DNA, called the template strand, during elongation in the 3' to 5' direction.
Therefore, DNA polymerase III catalyses the elongation of DNA by attaching incoming DNA to the 3' end of the elongated DNA.
Learn more about DNA synthesis here:
https://brainly.com/question/14137825
#SPJ12
What is most likely to cause wilting in plants?
A: Low nutrient concentration in the soil near the roots
B: An increased amount of sunlight exposure
C: Loss of water in cells throughout the plant
D: Long exposure to cold external temperatures
Answers
Answer:
loss of water in cells throughout the plant
Explanation:
PLEASE HELPPP!!!!
Identify a biome and explain how the biotic and abiotic factors affect the biodiversity in that Biome? How are the biotic and abiotic factors related?
Answers
Answer:
A large community of plants and animals in a major habitat, such as a desert or a forest. Abiotic factors, such as rain, temperature and sun affect the biome drastically. If there is more rain, there will likely be more plants and animals able to live in that area. If it is hotter and sunnier, less plants and animals will be able to live in the area. Biotic factors, such as beavers in a forest can also change the biodiversity of the area. Beavers create dams which slow the movement of water. This allows other animals that can't swim against strong currents to live in the ponds and lakes the beavers make. This would be impossible if the beavers weren't there.
which graphic organizer best compares the energy inputs and outputs of cellular respiration and photosynthesis?
Answers
Answer:
glucose and oxygen is used for the input cellular respiration while carbon dioxide and water is used for output cellular respiration
Light energy → photosynthesis → chemical energy → cellular respiration → chemical energy is the best compares the energy inputs and outputs of cellular respiration and photosynthesis.
Thus option B is correct.
What do you mean by energy transfer ?In a living cell the energy can only transfers from one cellular reaction to another by changing its form from one type of energy to another.
photosynthesis and cellular respiration are two closely related opposite cellular reaction.
In photosynthesis light energy from sun can be absorbed by chlorophyll pigment, then conversion of inorganic matters to organic matter.
It stores energy in the form of chemical energy called glucose.
In cellular respiration, products of photosynthesis that is glucose and oxygen converted in the carbon dioxide and water with release of ATP stores a high amount of energy.
Thus option B is correct.
Learn more about photosynthesis, here:
brainly.com/question/3169942
#SPJ6
The question was incomplete, thus the probable question is
which graphic organizer best compares the energy inputs and outputs of cellular respiration and photosynthesis?
A. chemical energy → cellular respiration → thermal energy → photosynthesis → light energy.
B. Light energy → photosynthesis → chemical energy → cellular respiration → chemical energy.
C. chemical energy → photosynthesis → thermal energy → cellular respiration → chemical energy.
D. light energy → cellular respiration → chemical energy → photosynthesis → thermal energy.
Which of the following is not related to the cell cycle?Cell divisionCell divisionOrganism grothOrganism grothDNA replicationDNA replicationReproduction
Answers
Answer:
organism growth
Explanation:
because an organism starts to grow by using system and all and not only cells i guess
1.Yeast cells move by themselves.
True
False
2.There are male and female algae.
True
False
3.Given the statements below, choose the one that is true about one-celled living things.
Under normal conditions, yeast produces spores.
The adult stage for one-celled organisms is usually extremely long.
Algae can only be unicellular.
Because of its size, algae does not make much oxygen for the earth.
4.Mold is a one-celled plant.
True
False
5.Yeast uses photosynthesis to provide its own energy.
True
False
6.There are more yeasts than algae.
True
False
7.Yeast has chlorophyll.
True
False
8.Mold has roots.
True
False
9.Algae have cell walls.
True
False
10.There are some many-celled algae.
True
False
11.Yeasts can reproduce very quickly.
True
False
12.Yeast reproduces by:
mitosis
spores
budding
13.What is produced as yeast reproduces?
gas
water
a mineral
14.Algae are important to the earth's supply of:
hydrogen
oxygen
nitrogen
15.Yeast grows by adding:
seeds
cells
cytoplasm
chlorophyll
Answers
Answer:
1) False
2)False
3)Under normal conditions, yeast produces spores
4)True
5)False
6)False
7)False
8)False
9)True
10)True
11)True
12)Budding
13)gas
14)oxygen
15)cytoplasm
BRAINLIST PLS
Answer:
okay just give that one dude brainlist i feel bad.
Explanation:
Contraction of the left scalene muscles tilts the head toward the left shoulder. What type of movement is this
Answers
Contraction of the left scalene muscles tilts the head toward the left shoulder is a type of ipsilateral movement.
Ipsilateral is a term used for the location of structures and organs and is based on anatomical position.
In concrete, ipsilateral means that if a rotation is to the "left" the tilt will also be to the same side of the direction of the tilt movement.If we consider the left scalene muscles as a reference, the head toward the left shoulder is considered ipsilateral because the tilt movement is on the same side.Therefore, we can conclude that contraction of the left scalene muscles tilts the head toward the left shoulder is a type of ipsilateral movement.
Learn more here: https://brainly.com/question/13258888
which disease occurs when the heart is unable to pump enough blood to supply the needs of the body?
Answers
Answer:
Heart failure
the gestation of an embryo occurs in stages. which of the following is the correct order of the stage of gestation
Answers
The passage of H ions through ____________ causes it to spin and produce ATP
Answers
Help help help help help help help help help
Answers
Very warm with an average daily temperature of 28°C.
The temperature never drops below 20°C and rarely exceeds 35°C.
The atmosphere is hot and humid .
The climate is consistent all year round.
There are no seasons.
Most rainforests are structured in four layers: emergent, canopy, understory, and forest floor. Each layer has unique characteristics based on differing levels of water, sunlight, and air circulation.
Orchids. Orchids make up one of the largest, most varied flowering plant families with over 20,000 known species.
Hemiepiphytes.
Lianas, Vines and Creepers, and
Bromeliads.
Logging interests cut down rain forest trees for timber used in flooring, furniture, and other items. Power plants and other industries cut and burn trees to generate electricity. The paper industry turns huge tracts of rain forest trees into pulp
Some types of plants only survive for one growing season, dying back at the end of the summer or early fall. But they make lots of seeds that will sprout the next year. These plants are called annuals. If you purchased pansies or marigolds for your garden last summer they are examples of annuals. The whole plant, roots, stems, and leaves die but the seeds endure. In order to germinate next spring, many seeds require a period of cold weather which our area certainly supplies.
50points!!!!! and brainlest if you get it correct!!!!!
Think of an organism you've heard of or read about that has a surprisingly unusual trait or
behavior. How is this trait or behavior different from similar organisms? How does it help the
organism survive in its environment?
Answers
Answer:
An axolotl has an astonishing ability to regenerate body organs and lost limbs up to 5 times. Normally other animals would die after losing limbs. If an axolotl gets attacked by a predator and loses its limbs, it can still survive.
Explanation:
A growing community considers building a new hospital closer to residential neighborhoods. This will get residents to emergency care faster and save lives when it is needed. The only land available near residential areas is a forested wetland that supports a variety of species. What is a political consequence of not using the land for a new hospital?
Emergency care is farther away, risking the health and well-being of a growing community.
Preserving the ecosystem may upset residents in a community with a hospital shortage.
If there are fewer hospitals, it can slow down the number of new medical career opportunities.
It protects the lives of species and prevents a reduction in carbon sequestering by the trees.
Answers
A political consequence of not using the land for a new hospital is that preserving the ecosystem may upset residents in a community with a hospital shortage.
A very important consideration when citing infrastructure is the environmental impact of such projects. This is because, infrastructure is built on land at the expense of the ecosystems that survive in such habitat. Building the said hospital is going to have the negative impact of decrease in biodiversity.
A political consequence of not using the land for a new hospital is that preserving the ecosystem may upset residents in a community with a hospital shortage.
Learn more: https://brainly.com/question/8646601
Can someone please tell me if this is correct?
Answers
Answer:
yes that is correct
Explanation:
Daniel and Maria are pulling with 2 more newtons of force.
Which statement describes the ability of the cell membrane to allow various substance to move through it?
Answers
The figure below shows how enzymes work. In the space provided, describe what is occurring at each letter
