Answer:
Only 1%
Explanation:
97% of the earth's water is salt water so we cant drink that. The remaining 3% of the fresh water is contaminated with germs so only 1% of it is ready for consumption :)
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Tommy is investigating a strain of bacteria. He observes that the bacteria is only found in environments with a pH range from 6 to 8. His lab partner prepares a growth medium for this bacteria with a pH of 5. Which explanation best predicts what will happen to the bacteria grown in this growth medium?
A
The bacteria will quickly die because the growth medium is too acidic for survival.
B
The bacteria will grow quickly and then begin to die because they will run out of food.
C
The bacteria will grow slowly because the growth medium will provide fewer resources.
D
The bacteria will grow quickly because they can change the pH level of the growth medium.
Answer: A
The bacteria will quickly die because the growth medium is too acidic for survival.
Explanation: it was only found in 6 to 8 pH range so it will not survive in pH of 5
Why do you think we thought no life could survive in the deep ocean?
Answer:
The intense pressures in the deep ocean make it an extremely difficult environment to explore
Explanation:
Most of the deep ocean is cold, usually lower than the temperature in your refrigerator. Deep-sea animals don't mind the cold at all, and many can only survive and grow in the cold. Food is scarce in much of the deep sea, in part because photosynthesis only takes place at the ocean's surface where there's sunlight.
Answer: people are scared of what they'll find if they search so no one ever looks they just know what they know and dont want to learn new things
Explanation:
Why do I have to improve my grade?
Answer:
So you don't fail your class. College also matters as well...
Explanation:
Answer:
Answer is on the explanation below
Explanation:
In the short term, it shows colleges that you're a good student who can succeed in a highly rigorous academic environment, which is what they offer. In the long term, working towards good grades teaches you important skills in studying, preparation, discipline, and self-advocacy.
In humans, free earlobes (F) is a dominant trait to attached earlobes (f) . If parents with the genotypes FF have a child, what is the probability that the child will have earlobes different from its parents?
Answer:
0%
Explanation:
Mother: FF
Father: FF
From the Punnet Square, we can conclude that the only possible genotype from these parents is FF --> free earlobes.
This means that there is a 0% chance of having a child with attached earlobes.
How much more fish was found in the oceans in 1900 than in 2009?
Explanation:
For the two decades following 1950, world marine and inland capture fisheries production increased on average by as much as 6 percent per year, trebling from 18 million tonnes in 1950 to 56 million tonnes in 1969.
How do construction sites impact the environment?
•They can add oil to rivers
•They can cause sinkholes
•Sawdust can leach into the ground
•They lead to faster soil erosion
Due to excavation done on construction sites, construction sites impact the environment usually by causing sinkholes.
What is environmentally damage?Environmental damage refers to damages which are done to the living and non-living parts of the environment by human activities or die to natural causes.
Construction sites usually involves activities such as excavation of the ground and movement of earth.
This usually creates sinkholes in the ground.
Therefore, construction sites impact the environment usually by causing sinkholes.
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According to your data, what kind of activities increased your heart rate?
A Flower is reproductive organ? Why?
Answer:
Since the flowers are the reproductive organs of the plant, they mediate the joining of the sperm, contained within pollen, to the ovules — contained in the ovary. Pollination is the movement of pollen from the anthers to the stigma.
Explanation:
Which neuron is common only in dorsal root ganglia of the spinal cord and sensory ganglia of cranial nerves
Answer:
I believe the neuron is a pseudounipolar neuron.
Explanation:
___ is a method of preventing erosion by alternating crops in rows
Answer:
This is a method of preventing erosion by alternating crops in rows
Explanation:
I think is that true for me hehe
Which of the following best explains why most bacterial infections can be treated more easily than viral infections?
A.Vaccines are less effective at curing infections.
B.Antibiotics can destroy bacteria but not viruses.
C.The immune system does not respond to viruses.
D.Anti-viral medications don't work fast enough.
Answer: B- Antibiotics can destroy bacteria but not viruses.
Explanation: I got it rigth on the test :)))
help me decide this !
Answer:
D. it takes in oxygen and releases carbon dioxide
Answer:
Best option is D
Explanation:
your respiratory system is a network of organs and tissues that help you breathe. It cleans out your blood and moves oxygen through your blood it filters out carbon dioxide.
Which organ system in human makes sperm cells
Answer:
The male reproduction system.
The ocean is a three-dimensional environment. Explain how this kind of living space impacts diverse forms of marine life.
2. Which parts of this model would you change and why?
Answer: MODULE IS 3 AND 2+1 = 3
Explanation:
Which choice describes what may happen if a predator species disappears from an ecosystem?
uncontrolled growth of pest species
O growth in population of all other species
O prey species disappears as well
gradual return of predator species
Suggest 2 types of learned behaviors and two innate behaviors that you have observed in animals (cats, dogs, whales, humans)
A persistent change in behavior that develops through experience is called Learned behavior. They can be developed by trial and error methods.
What do you mean by Behaviors?Behaviors may be defined as the observable response of organisms to external or internal stimuli.
The two examples of learned behaviors include operant learning (rat pressing lever experiment) and classical conditioning (Food and bell experiment).
The two examples of innate behaviors include feeding their young ones by humans, and fighting against male stickleback fish.
Therefore, it is well described above.
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Ocean currents that upwelling near Southern California can make the climate _______compared to coastal areas that do not have upwelling
A more moist and warm
B more moist and cool
C dryer and cooler
D dryer and warmer
Answer:
C. dyer and cooler
How do the structures of the alveoli and capillaries support the function of gas exchange?
Suppose a scientist develops a technique for genetically modifying a bacterium species. This scientist would not be able to use the exact same technique to genetically modify a plant species. Why is that the case?
Every species on Earth is somewhat genetically unique.
B.
All species on Earth have identical genomes.
C.
There are no genetic similarities between the species on Earth.
D.
Genetic engineering can be done only on unicellular organisms.
Answer:
Answer is a, every species on earth is somewhat genetically unique.
Explanation:
I took the test, the person above me is wrong.
Which of the following is not an essential component of public health?
A.Stopping equitable access to resources
B.Building a diverse and skilled workforce
C.Strong infrastructure for public health
D.Effective communication and education
Answer:
Stopping equitable access to resources is not a essential component to public health.
Explanation:
The one that is not an essential component of public health is stopping equitable access to resources. The correct option is A.
What is public health?The science and art of preventing disease, extending life, and promoting health efforts and informed decisions of society, organizations, public and private, communities, and individuals has been defined as "the science and art of preventing disease, extending life, and promoting health."
Stopping equal access to resources is one that is not a necessary component of public health.
Thus, the correct option is A.
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Identify the type of energy described in each sentence
Answer:
1. is chemical energy
2. is gravitational energy
3. is mechanical energy
4. is radiant energy
Explanation:
Create two Punnett squares for a fictional trait, “Star-bellied.” “S” represents a dominant star-bellied gene, and “s” represents the recessive trait. For the first Punnett square, the mother and father both have star bellies and the recessive gene; what is the chance their child will have a star-belly? For the second square, the mother has a star-belly and the recessive gene, and the father does not have a star-belly; what is the chance their child will have a star-belly?
The Punnett squares provide information about the genotype and phenotype of individuals produced by the crosses. Cross 1) 3/4 = 75%. Cross 2) 2/4 = 50%.
What is a punnett square?The Punnett square is a graphic representation that shows the different types of gamete combinations according to the alleles involved in a cross.
Punnett square shows the probabilities of getting offspring with different genotypes and their consequent phenotypes.
Available data:
S represents a dominant star-bellied genes represents the recessive trait.We will assume this is a diallelic gene expressing complete dominance, this is, the dominant allele S completely hides the expression of the recessive allele s.
1st cross: mother and father both have star bellies and the recessive gene
Parentals) Ss x Ss
Gametes) S s S s
Punnett square) S s
S SS Ss
s Ss ss
F1)
Genotype
1/4 = 25% of the progeny is expected to be h0m0zyg0us dominant SS
2/4 = 50% of the progeny is expected to be heter0zyg0us Ss
1/4 = 25% of the progeny is expected to be h0m0zyg0us recessive ss
Phenotype
3/4 =75% of the progeny is expected to have star bellies
1/4 = 25% of the progeny is expected not to have star bellies
The chance their child will have a star-belly is 3/4 or 75%.
2nd cross: motherhas star bellies and the recessive gene and the father does not have a star-belly
Parentals) Ss x ss
Gametes) S s s s
Punnett square) S s
s Ss ss
s Ss ss
F1)
Genotype
2/4 = 50% of the progeny is expected to be heter0zyg0us Ss
2/4 = 50% of the progeny is expected to be h0m0zyg0us recessive ss
Phenotype
2/4 =50% of the progeny is expected to have star bellies
2/4 = 50% of the progeny is expected not to have star bellies
The chance their child will have a star-belly is 2/4 or 50%
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What is hidaya's punnett squares
A Punnett square allows the prediction of the percentages of phenotypes in the offspring of a cross from known genotypes. A Punnett square can be used to determine a missing genotype based on the other genotypes involved in a cross.
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Which of these is a neurodevelopmental disorder?
A. mood disorder
B. panic disorder
C. agoraphobia
D. autism
Answer:
D. Autism
Explanation:
Autism is a neurological and developmental disorder that begins early in childhood and lasts throughout a person's life. It affects how a person acts and interacts with others, communicates, and learns.
Answer:
D.autism
Fact-
Neurodevelopmental disorders are a group of conditions in which the growth and development of the brain is affected. This can impact an individual's language, emotions, behavior, self-control, learning and memory.
Explanation:
HGD
What change makes it difficult for organisms to survive
Answer:
if an animal lives in the desert and its moved to a cold place it can die cuz its not where it should be
Explanation:
Convert the following sentences into passive form 6. Ethiopia has denied the request.
Converting the sentence ( Ethiopia has denied the request ) into a passive form :
The request has been denied by the Ethiopia
Active vs Passive voiceActive voice asserts that the grammatical subject performs the action which is represented by the verb. while in a passive voice form the subject of the sentence is acted upon by the verb in the sentence. The sentence in the question is in active voice. The passive form of the sentence is The request has been denied by the Ethiopia.
Hence we can conclude that Converting the sentence into a passive form : The request has been denied by the Ethiopia.
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The french taxonomist who, in 1809, was the first scientist to suggest that organisms that use one part of their body repeatedly would increase their ability was
The french taxonomist who, in 1809, was the first scientist to suggest that organisms that use one part of their body repeatedly would increase their ability was Jean Lamarck
Organisms will not pass acquired physical traits to the next generation.
In his theory, Lamarck proposed how species adapted to the changed environment by passing down acquired physical traits to the next generation. But, after Charles Darwin published his theory of evolution, Lamarck's theory was rejected. Now, it is known that acquired physical traits could not be inherited and epigenetics is a good proof for that.
Once isolated, a pure colony is added to a broth for increased numbers of viable bacteria to test.
A pure bacterial colony is important for studying the characteristics of that bacterial species.
What is a pure bacterial colony?A pure bacterial colony is a bacterial colony which contains only bacteria of the same species growing together.
A pure colony can be obtained by growing bacteria in medium which is specific for a particular species of bacteria.
Once isolated, a pure colony is added to a broth for increased numbers of viable bacteria to test.
Therefore, a pure bacterial colony is important for studying the characteristics of that bacterial species.
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which example is most likely an organic compound?
water, which is a liquid found all over Earth
glucose, which is a sugar made by plants
gold, which is a metallic mineral
sodium chloride, which is a salt
I am on a cumulative exam so please help.
Answer :
Glucose with molecular formula C6H12O6
Explanation :
organic compound, any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen. The few carbon-containing compounds not classified as organic include carbides, carbonates, and cyanides.