A scientist shines ultraviolet light on a colony of blue colored bacteria. She then places colonies of the bacteria in separate Petri dishes. After
allowing the bacteria to replicate for several generations, the scientist observes that some of the dishes now contain colonies with purple and
red colored bacteria. What can be concluded from this observation?

Answers

Answer 1
Answer
There were two types of blue colored bacteria in the Petri dishes. The two types were ones that needed high amounts of light and ones that didn’t need a lot of light.
Explanation
The bacteria that needed high amount of light adapted and became red to absorb the most amount of UV light and the ones that needed little to none light adapted to become purple to reflect the most amount of UV light.

Related Questions

Beneficial micro-organisms that are responsible for breaking down organic matter are called?.

Answers

Decomposers break down organic matter.
Some examples are fungi,bacteria and protozoa.

what factors affect the populations in a ecosystems

Answers

pollution, predator’s, and lack of resources

What makes up muscle tissue?
organisms
organ system's
organs
O cells

Answers

Answer:

Cells

Explanation:

The basic unit of living things is cells , some cells make up tissues , tissues make organs and organs make organ system , in a normal human (organism) there are 11 organs .

PLEASE GIVE BRAINLIEST

8. if a chemist calculates the maximum amount of product that could be obtained in a chemical reaction, he or she is calculating the
a. percentage yield.
b. mole ratio.
c. theoretical yield.
d. actual yield.

Answers

Answer:

they are calculating the theoretical yield

What does integrin do?

Answers

Integrin acts as transmembrane linkers and mediates the interactions between the cytoskeleton and the extracellular matrix.

What is Integrin?

They are proteins which possesses catalytic and structural functions in the body of organisms.

This is done through their ability to regulate different reactions which occur in cells.

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importance of potassium in plants (any 4 points)​

Answers

1. Increases root growth and improves drought tolerance.

2. Builds cellulose and reduces lodging.

3. Activates at least 60 enzymes involved in growth.

4. Helps translocate sugars and starches.

5. Produces grains rich in starch.

6.Increases protein content of plants.

A very large refrigerant leak can cause suffocation because refrigerants; A) smell strong and make breathing difficult. B) are lighter than air and cause dizziness. C) are heavier than air and displace oxygen. D) sting the nose and cause sneezing.

Answers

A very large refrigerant leak can cause suffocation because they are heavier than air and displace oxygen.

Refrigerant is a substance that expands or vaporizes to generate a cooling effect. Standard R-22 refrigerant, sometimes known as freon, is used in the majority of domestic air conditioners.Freon, also referred to as refrigerant, includes substances that can enter lungs and influence the quality of the air. Freon has a significant impact on the air and health despite being flavorless and odorless.

A dangerous illness called refrigerant poisoning can include coughing, headaches, nausea, vomiting, and skin and eye irritation because they are heavier than air and displace oxygen.. Untreated poisoning can result in a number of life-threatening conditions, including the following:

difficulty breathingabnormal heartbeatfluid accumulation in the lungsconfusion and mental exhaustionSeizures

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Directions: List 5 examples for each type of change to matter.
Physical Change - The identity does not change (formula)
Chemical Change - The identity does change (formula)

i will give brainliest again, thanky ou for your help!

Answers

Answer:

Physical Change:

- Boiling water

- Breaking a pencil

- Water evaporating

- Denting a car door in an accident

- Tearing paper

- Ice melting

- dissolving

Chemical Change:

- Something rusting

- photosynthesis

- metabolism/digestion

- Nuclear power [atoms are arranged differently]

- Smashing paper with two metal balls, burns paper

- Electricity in water, breaks H2O into H2 and O2

-----

physical change is when there is only physical change occurring--and it can typically be undone easily,

whereas chemical change is when there is chemical change--which changes the chemical properties of something, which cannot be undone simply.

hope this helps!!

Answer:

physical [The identity does not change]

1. tear paper

2. submerge in water

3. eat [chewing] food

4. cutting hair

5. closing lid

chemical [The identity does change]

1.  digest food

2. acid [corrosion]

3. rust

4. burning paper

5. baking

PLEASE HELP IM STUCK

Answers

succession ig:)) In many cases, The meaning that emerges in the inflated area is that over the years, So a series of structural changes have taken place. These changes are called ecological succession

which structure is most likely found in green plants

Answers

The structure that is mostly found in green plants is chloroplast.

What are the defining characteristics of lobe-finned fishes?

Answers

Lobe-finned fishes are characterized by lobes in their fins in addition to the basic characteristics of fishes.

What are lobe-finned fishes?

Lobe-finned fishes are a group of fish known as Sarcopterygii. They possess the basic characteristics of fishes such as swim bladder, lateral lines, etc.

They are a sister group of ray-finned fishes. In addition, lobe-finned fishes possess the following characteristics:

lobed finsenameled teeth

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True or false? the chemiosmotic hypothesis states that the synthesis of atp generates a proton gradient that leads to electron flow through an electron transport chain.

Answers

Answer:

False

Explanation:

The chemiosmotic hypothesis states that the flow of electrons through an electron transport chain generates a proton gradient that leads to the synthesis of ATP.

(ps.  im so sorry if this is wrong, i've never done this before lolol

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30. 9) To complete this Venn Diagram, label the following cell parts as A (Prokaryotic), B (common to both) or C (Eukaryotic) characteristics:
A B C
Prokaryotic
Eukaryotic
capsule
flagella
cell wall (incl. plants)
cytoplasm
cell membrane
nucleus

Answers

The presence of the Capsule is the characteristic of the prokaryotic cells only. Hence, it is placed under A. While the nucleus is only found in the eukaryotic cell. Hence, it is placed under C. Rest all, flagella, cell wall, cytoplasm, and cell membrane (plasma membrane) are found in both types of cells. Hence, they are all placed under B.

What are Prokaryotes?

Prokaryotes may be defined as a tiny single-celled organism that has neither a characteristic nucleus with a membrane nor other specialized organelles. For example, bacteria and cyanobacteria.

The basic difference between eukaryotic and prokaryotic cells is that eukaryotic cells have a well-defined nucleus with membrane-bound cell organelles, while prokaryotic cells do not have such kinds of arrangements.

Therefore, it is well described above.

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why do farmers prefer to rear hybrid pigs to local pigs​

Answers

Answer:

Farmers prefer to rear hybrid pigs to local pigs because it provides notable improvements in traits associated with reproductive performance and motherly ability.

Explanation:

used because it provides significant improvement in traits relating to reproductive performance and mothering ability. this is my answer

Eukaryotes such as animal and plants cells differ from prokaryotes in that prokaryotes.

Answers

Eukaryotes such as animal and plant cells differ from prokaryotes in that prokaryotes do not have either organelles or cell nuclei.

What are prokaryotes?

Prokaryotes are microorganisms characterized due they do not have organelles or cell nuclei.

Conversely, eukaryotes contain their genetic material compartmentalized into a cell nucleus.

In conclusion, Eukaryotes such as animal and plant cells differ from prokaryotes in that prokaryotes do not have either organelles or cell nuclei.

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_______ uses a rigid or flexible scope, which is inserted through the urethra and advanced into the renal pelvis and ureter.

Answers

The blank space in the task content should be filled with; Ureteroscopy.

What is a Ureteroscopy?

The ureteroscopy examination, involves inserting a thin, flexible scope into the patients bladder and ureter (the urine-carrying tube that carries urine from the kidneys to the bladder). This is done in a bid to detect abnormalities such as kidney stones.

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A botanist scrapes pollen off of one plant and then use it to pollinate the flower of another plant . What can scientifically conclude about other offspring

Answers

A botanist scrapes pollen off a flower of one plant and then uses it to pollinate the flower of another plant. What can be scientifically concluded about their offspring?

A. They will have a large amount of genetic variation.

B. They will have twice the number of chromosomes as their parents.

C. They will be genetically distinct from their parents.

D. They will be able to reproduce only asexually.

Plants' xenogamous system has high probabilities of introducing genetic variation between plants. Option A) They will have a large amount of genetic variation.

What are the crossing systems in plants?

There are two general crossing systems in plants, which depend on pollination type.

Self-pollination occurs when the flower pollen is transferred to the same flower stigma, reaching that individual egg to fertilize it. These are autogamous systems.

Crossed pollination occurs when the mature pollen is driven by different pollinator agents from one flower to another, reaching the other flower stigma and fertilizing its eggs. These are xenogamous systems.

Sexual reproduction gives more possibilities to different alleles of a gene that did not appear in one generation to express in the next generation.

Both types of pollination allow genetic variation, however by the occurrence of crossed pollination there are more chances to ensure the variability of the species and survival to environmental changes.

While by self-pollination there are more chances to express the same genotype of the parental plant.

The Xenogamous system has the advantage of avoiding the effects of endogamy in a population by increasing genetic variability.

In the exposed example, the botanist is acting as the pollinator agent, allowing one plant's pollen grain to fertilize the egg of the other plant.

The merging of these gametes will introduce variation since there will new allelic combinations.  

The correct option is A). They will have a large amount of genetic variation.

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heyy
please help me with these answers
theyre quite simple but i dont really know how to explain the answers

1. Tulips are pollinated by insects. explain three ways the flower is adapted for this type of pollination

2. explain the differences in the types of pollen produced by insect-pollinated amd wind-pollinated plants.

thankss

Answers

1. Bees, flies, wasps, butterflies, and moths are significant insect pollinators. Moths are drawn to white flowers that are open at night, but bees and butterflies are drawn to brilliantly colored blooms with powerful scents that are open during the day.

What is pollination?

The act of moving pollen grains from an anther to a flower's stigma is called pollination. Flowers that are pollinated by insects typically generate a sweet nectar that the insects visit to consume. If a flower is self-pollinating, fertilization occurs when pollen stock from an insect contacts the stigma of the bloom. If the bug is bisexual, it will fly to another bloom and disperse the pollen.

2. Most flowers advertise themselves by being brightly colored and perched on long stems so they wave in the air and are closer to where insects are flying, as opposed to on the ground, where they would otherwise be. A flower's petal sizes and shapes, in addition to color, can draw insects.

3. Flowers draw insects because of their aroma or vibrantly colored petals. Nectar is a delicious liquid that many flowers generate that is consumed by insects. The female part of the flower is the carpel.

Answer 2. Flowers that are pollinated by insects have characteristics that enable insects, birds, or other animals to pollinate them while consuming the nectar. When an insect brushes by the stigma of a flower, whether it is the same bloom or another, pollen grains will adhere to the insect's outer layer and stick to the flower's stigma, pollinating the flower. When the two seˣ cells combine, fertilization occurs, the ovule develops into a seed, and the ovary becomes a fruit. The pollen grain then grows a pollen tube down the style to reach the ovary, which contains the ovules.

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How did different skin colors evolve in humans?

Answers

Skin colors evolve in humans as an adaptive feature to the amount of solar radiation in a given latitude.

What is adaptation?

Adaptation is a given phenotypic feature that confers an advantage to the individual in particular environmental conditions.

Apadtations are selected by natural selection, which means that they exhibit differential survival and/or reproduction rates.

In conclusion, skin colors evolve in humans as an adaptive feature to the amount of solar radiation in a given latitude.

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what are haploid and diploid cells?​

Answers

Answer:

Explanation:

Haploid Cells

Haploid cells contain only one set of chromosomes. Gametes or sex cells are the most common type of haploid cells. They are produced by meiosis and are genetically diverse. When the haploid cells from male and female fuse together during fertilization, it forms a diploid cell.

Diploid Cells

These cells have two sets of chromosomes. It is formed by the fusion of two haploid cells. Most mammals are diploid, i.e., they have two homologous copies of each chromosome in the cells. They are produced by mitosis. The somatic cells in humans are diploid cells.

Which trait is most likely to be selected in the population of plants growing in this region of the desert?

Answers

The ability to limit water transport and to conserve it is the feature most likely to be chosen in the  plants growing in the desert.

Since the plants in desert regions are tiny, have deep roots, and have a thick,  which also helps to keep the plants cool and slows evaporation, they lose less water and are more effective in hot temperatures like deserts. Animals cannot consume the majority of desert plants because they have. As a result of cactus and aloe vera flourishing in this area of the desert, The flora is frequently seen in deserts.

So  The ability to limit water transport and to conserve it is the feature most likely to be chosen in the  plants growing in the desert

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the enzyme pgh synthase contains two different functionalities, a __________ that uses two molecules of oxygen as substrates and __________ which performs a 2 electron reduction.

Answers

The enzyme PGH synthase contains two different functionalities, a cyclooxygenase that uses two molecules of oxygen as substrates and peroxidase.

What is PGH synthase?

Prostaglandin-endop_eroxide synthase 2 (PGH) is an enzyme that has catalytic activity as peroxidase.

A peroxidase enzyme is a catalyst that converts peroxide which is very reactive to oxygen and water.

In conclusion, the enzyme PGH synthase contains two different functionalities, a cyclooxygenase that uses two molecules of oxygen as substrates and peroxidase.

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If the haploid number of a mammalian cell is 32, there will be _______ sister chromatids during metaphase of mitosis.

Answers

Answer:128

Explanation:

What do plants need to survive and reproduce

Answers

It is very important that plants gets the right amount of basic needs to survive and reproduce. This is essential to humans as their main source of food is from plant.

Plants needs light, air, water, nutrients, and space to  survive and reproduce. Plants gets their source of light from the sun, they use this light energy to produce glucose in the leaf.

Plants obtain air from the atmosphere, they derive water and nutrients from the soil to enhance their growth.

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based on sex assigned at birth, women tend to reach higher bac levels more quickly than men because:

Answers

Women tend to reach higher bac levels more quickly than men because they have lower levels of the enzyme alcohol dehydrogenase.

What is BAC levels?

BAC levels refers to the blood alcohol levels.

Women tend to reach higher BAC levels than men.

The enzyme alcohol dehydrogenase is responsible for the metabolism of alcohol.

Women generally have lower levels of the enzyme in their body and thus metabolize alcohol more slowly.

Thus, women reach higher BAC levels than men.

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What is the pressure in mm hg of a 0.025 mole sample of co2 at 350 k in a 2.00 l container? report your answer to the nearest mm hg

Answers

The pressure in mmHg of a 0.025 mole sample of CO2 at 350 k in a 2.00L container is 273.6 mmHg.

How to calculate pressure?

The pressure of a gas can be calculated using the following expression:

PV = nRT

Where;

P = pressureV = volumen = number of molesR = gas law constantT = temperature

P × 2 = 0.025 × 0.0821 × 350

2P = 0.72

P = 0.72/2 = 0.36atm

Therefore, the pressure in mmHg of a 0.025 mole sample of CO2 at 350 k in a 2.00L container is 273.6 mmHg.

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In which life-cycle phase would the financial risks of a project be the greatest?

Answers

Initiation life-cycle phase would the financial risks of a project be the greatest.

What is financial risk in project?

Most health insurance companies only cover the lowest version of a drug. It is nearly identical to the branded medicine or includes the same active component. If your doctor has prescribed the more expensive medication for a medical condition, your insurer could agree to pay for it. For instance, you might have an allergy to a component of the less expensive medication. In that situation, the prescription must be marked as "medically required" by the physician.

Construction risk, operational risk, supply risk, offtake risk, repayment risk, political risk, currency risk, and authorizations risk are typical project financing concerns. - The risk of conflict settlement Project finance is a type of secured loan distinguished by complex, yet fair, risk allocation plans.

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can someone find this answer

Answers

Answer:

Option D. (Osmosis)

Osmosis is the process by which water moves from an area of low solute concentration to high solute concentration across a membrane.

Option D is the correct answer

Which is an abiotic factor that can be found in a rain forest ecosystem?
OA. Water
OB. Trees
O C. Animals
D. Bacteria

Answers

Answer:

I think Trees because abiotic means stuff that doesn't live so yea
let me know if i am wrong.

Explanation:

should be B i would think






What form of natural selection does the histogram show?

disruptive selection

sexual selection

directional selection

stabilizing selection

Answers

The form of natural selection does the histogram show is disruptive selection.

What is a disruptive choice on a graph?

In disruptive choice, choice pressures act on people withinside the center of the trait distribution. The end result is a bimodal, or -peaked, curve wherein the 2 extremes of the curve create their personal smaller curves.

Disruptive choice produces a populace that has  severe variations of a trait because the dominant phenotype. For example, if each brief and tall organisms, however now no longer medium top organisms have been preferred this will be disruptive choice in action.

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