Answer:
only three house flies were collected for an experiment
Explanation:
i just did it :)
Thick, brownish haze formed when certain gases in the air react with sunlight is called ____________. radon photochemical smog ozone acid rain
Answer:
photochemical smog
Explanation:
Thick, brownish haze formed when certain gases in the air react with sunlight is called photochemical smog.
Photochemical smog is a combination of pollutants which are formed when certain gases such as nitrogen oxides and other organic compounds react with sunlight, leading to the formation of brown haze.
Answer: photochemical smog
Explanation:
Photochemical smog is a type of smog that is produced when the ultraviolet light reacts with the nitrogen oxides present in the atmosphere. It can be seen as a brown visible haze. It can be seen during morning as well as in the afternoon, especially can be seen in the densely populated warm cities.
during translation, how many mrna bases are needed to code for each amino acid?
Answer:
Three bases
Explanation:
Answer:
Three Bases
Simple calculations show that a minimum of three bases is required to encode at least 20 amino acids. Genetic experiments showed that an amino acid is in fact encoded by a group of three bases, or codon. The code is nonoverlapping. Consider a base sequence.
When do feedback loops fail to work on an ecosystem?
If you could explain the answer, that would be awesome :)))))
Answer:
Feedback loop will fail in an ecosystem if the factors regulating the feedback mechanisms fail to function.
Explanation:
Feedback loop is the phenomena in which output is circled back in a way that it is used as input again i.e the reaction is circled back. Its a continuous process.
There are two types of feedback loops, positive and negative, one functions to reinforce and other functions to balance. Positive feedback loops enhance the outputs while negative lower the output and keeps the balance. the variables that are involved in all these processes effect each others so, by eliminating such variables or factors will cause failure of feedback loops.
Bacteria and viruses have different mechanisms and machinery to survive and replicate. Because of this, there are different ways of treating bacterial and viral infections. What is a difference in the way that bacterial and viral infections are treated medically?
A) Viruses can be treated with antibiotics, bacteria cannot.
B) Bacteria can be treated with antibiotics, viruses cannot.
C) Vaccinations provide immunity from viruses, but not bacteria.
D) Vaccinations provide immunity from bacteria, but not viruses.
B) Bacteria can be treated with antibiotics, viruses cannot.
Antibiotics have no target when dealing with viruses. Antibiotics work on bacteria because it targets the growth machinery in bacteria. Viruses are found inside a human cell and reproduce by inserting their DNA into a human cell. There are antivirals and vaccines out there for viruses. Our body’s immune system fights against viruses with antibodies!
Answer:
That is correct on USATestPrep
Explanation:
Bacteria can be treated with antibiotics, viruses cannot.
Antibiotics won't treat viral infections because they can't kill viruses. Viruses are not living and depend on a host cell to provide the machinery for reproduction.
When coal has reached it hardest, darkest form, it is called
Select one:
0 a. sub-bituminous
b. lignite
c. bituminous
d. antrhacite
Next page
When the coal reaches its hardest and the darkest form then it is termed as anthracite.
Answer: Option D
Explanation:
The hardest among the coal is called as the anthracite. It has large amount of carbon atoms and it is also regarded as the best quality of coal that is being mined.
This is mostly prevalent in South Korea, North Korea, United states, United Nations, Canada etc. This is mainly used in the steel making process and is combined with many alloys for enhancing their property.
To find the price of bituminous coal per million BTU's, we need to follow these steps:
1. Convert the price from tons to pounds:
- Since there are 2,000 pounds in a ton, we can multiply $52/ton by 2,000 to get the price per pound.
- $52/ton * 2,000 pounds/ton = $104,000/pound
2. Convert the heat content from BTU/pound to BTU:
- Since there are 12,000 BTU/pound, we can multiply the price per pound by 12,000 to get the price per BTU.
- $104,000/pound * 12,000 BTU/pound = $1,248,000,000/BTU
3. Convert the price to per million BTU's:
- Since there are 1,000,000 BTU's in a million BTU's, we can divide the price per BTU by 1,000,000 to get the price per million BTU's.
- $1,248,000,000/BTU / 1,000,000 BTU = $1,248 per million BTU's
Therefore, at $52/ton, the price of bituminous coal per million BTU's is $1,248.
Please let me know if there's anything else I can help you with.
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Which statement is true of Y chromosomes?
A. Only men have them.
B. Women have two of them.
C. Only women have them.
D . All babies have them.
Answer:Only men have them
Explanation:
The true statement of Y chromosomes is option A. Only men have them.
What are Y chromosomes?In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes.Y chromosome is a sex chromosome that is normally present only in male cells, which are designated XY. Most human cells contain 23 pairs of chromosomes. One set of chromosomes comes from the mother, while the other comes from the father. The twenty-third pair is called the sex chromosomes, while the rest of the 22 pairs are called autosomes.Typically, biologically male individuals have one X and one Y chromosome (XY) while those who are biologically female have two X chromosomes.Hence, the true statement is option. A.
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Which phrase best defines taxonomy?
A) the study of the digestive system
B) the process by which an organism obtains energy
C) the science of classification
D) a group of archaeans that live in deep-sea trenches
Answer:
C the group of science classifications.
Explanation:
Taxonomy is better known in science for the classification of various plants and animals on the basis of their characteristics .
The phrase which best defines taxonomy is the science of classification.The correct option is C.
Taxonomy is the practice and science of categorization or classification.A taxonomy (or taxonomical classification) is a scheme of classification, especially a hierarchical classification, in which things are organized into groups or types.
Among other things, a taxonomy can be used to organize and index knowledge (stored as documents, articles, videos, etc.), such as in the form of a library classification system, or a search engine taxonomy, so that users can more easily find the information they are searching for. Many taxonomies are hierarchies .
As taxonomy is a science of classification ,option C is correct.
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Which of these internal feedback reactions does not need your brain? OA. Your leg jumping when it is hit by a reflex hammer B. Your deeper breathing when you need more oxygen C. Your body temperature rising when you have an infection D. Your heart beating faster when you are in danger
Answer:
d your heart beating faster
The correct option is A. leg jumping when it is hit by a reflex hammer is the only brain-free option. It's a spinal reflex - a quick response through the spinal cord without needing the brain to process information.
Only the leg jumping when it is hit by a reflex hammer skips the brain. It's a spinal reflex for a quick response, while the others (B, C, D) rely on the brain to receive info and tell your body what to do (breathing, temperature, heart rate).
The other options (B, C, and D) require the brain's involvement and are not spinal reflexes:
B. Deeper breathing when you need more oxygen: When your body senses low oxygen levels (through blood chemistry changes), the brain receives these signals and triggers deeper breaths to increase oxygen intake.
C. Body temperature rising when you have an infection: During an infection, the immune system releases chemicals that signal the brain to increase the body's core temperature, a defense mechanism.
D. Heart beating faster when you are in danger: When you perceive danger, sensory information reaches the brain, which activates the nervous system, causing your heart rate to increase to prepare for action.
In all these options (B, C, and D), the brain plays a crucial role in interpreting signals and sending commands to organs for adjustments.
what is a drought? what problem can it cause?
Answer:
no water and it can cause the plants and wildlife to dehydrate and the land around will become dry and could start a wildfire
Which of these is an example of how the ocean influences climate?
A. It causes long droughts and rainfalls in coastal areas.
B. It causes temperatures near shorelines to be less variable.
C. It reduces the amount of rainfall near lakes.
D. It makes the weather warmer near the poles than expected.
Answer: Option B
Explanation:
The oceans control the temperature by moving the hot air towards poles and cold air towards the equator. Ocean currents makes the colder air flow from the poles towards equator and hot air from from the equator to the poles.
It also makes the rain fall and helps in the regulating the temperature near the shoreline and makes it less variable.
So, the correct answer is option B
The ocean's ability to absorb and distribute heat leads to moderated and less variable temperatures in coastal areas, making option B the correct answer to how the ocean influences climate. So the correct option is B.
Explanation:The question asks for an example of how the ocean influences climate. Among the given options, the correct answer is B. It causes temperatures near shorelines to be less variable. This is because oceans have a tremendous capacity to absorb and store heat, and they distribute this heat through their currents, stabilizing temperatures. Coastal areas benefit from these ocean effects, resulting in moderated climates with less temperature variation throughout the year.
Maritime Climates and Temperature Moderation
Water heats and cools more slowly than land due to its high specific heat capacity. This is known as 'thermal inertia', which enables coastal regions to experience milder climates, even in places that are far north, such as the coast of Norway. The interior of a continent, away from the moderating influence of the ocean, tends to have more extreme temperatures. On the coast, the differences in temperature are smoothed out, leading to less variable climates. Oceans also impact precipitation patterns, which can lead to climates that are not only milder but also can have increased rainfall, depending on global wind and current patterns.
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The mammal pictured below is a silvery mole rat.
Which statement is an inference based on the picture?
The animal is ugly.
The animal has hairless feet with sharp claws.
The animal has prominent upper and lower incisor teeth.
The animal likely has poor vision since its eyes are so small.
Answer:
D) The animal likely has poor vision since its eyes are so small.
Explanation:
The question is asking for an inference, a conclusion reached on the basis of evidence and reasoning.
We can infer that the mole rat has poor vision since it's eyes are so small.
At first I thought this question was asking to make an observation based on the dichotomous key
make sure to read the questions carefully, this was about to be my first wrong Brainly answer
The animal likely has poor vision since its eyes are so small is an inference based on the picture.
What are the feature of silvery mole rat?This is a medium-sized mole-rat with soft, silky silvery-grey fur. The head is paler around the eyes, the sides of the face and the snout, and some individuals have a small white patch on the forehead. The long, slightly-curved incisors lie outside the lips.
Hence, the question is asking for an inference, a conclusion reached on the basis of evidence and reasoning.
We can infer that the mole rat has poor vision since it's eyes are so small.
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Why is it important that the bonds between nitrogenous bases are weak?
It is important that the bonds between nitrogenous bases are weak as the bonds which are present between nitrogenous bases are hydrogen bonds which are weak bonds.
Which bonds are present between Nitrogenous bases?
Nitrogenous bases are the nitrogen-containing compounds which are the components of the nucleotides that are the monomeric units of DNA (deoxyribonucleic acid). Purines and pyrimidines are the two types of nitrogenous bases which are found in the DNA molecule.
Hydrogen bonds are responsible for holding the paired nitrogenous bases together in the DNA. Because, hydrogen bonds are the weak bonds that are present between the two strands of DNA. These bonds are easily separated, which is a characteristic that is important to DNA's function.
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When is your respiration rate likely to change?
A. When your intestines are digesting
B. When your cells have too much glucose
C. When your cells need more oxygen
D. When your liver is working after a meal
Answer:
I believe the answer is "C. When your cells need more oxygen."
Please mark brainliest, if right. Thanks :)
In humans, a cleft chin is dominant and non-cleft is recessive. What will the generation look like
Answer:
most will have a cleft chin and some will have a non cleft.
Explanation:
In a population of owl monkeys, allele T codes for tufted tails ( TT and Tt). The
frequency of allele t, which codes for nontufted tails (tt), is 40 percent. If a new
predator starts catching the monkeys by their tufts and natural selection occurs,
which of the following would most likely happen over time?
A) The frequency of allele T would increase
B) The frequencies for the two allele forms would equal out.
C) The frequency of allele T would decrease and the frequency of allele t would
increase.
D) No changes would take place because the allele governing tufted tails is not
dominant.
Answer:
C) The frequency of allele T would decrease and the frequency of allele t would increase.
Explanation:
If the hunter is going after monkeys with tufted tails (TT), the tufted tail monkeys would die out from the new predator, letting the non-tufted tails (tt) increase in population.
What is phosphorylation?
the conversion of phosphate into another molecule
the removal of a phosphate group from a molecule
the conversion of a molecule into phosphate
the addition of a phosphate group to a molecule
Answer:
I believe it is D.
Explanation:
Hope my answer has helped you!
Answer: i think its D: the addition of a phosphate group to a molecule
Explanation:
Does sand/silt have any internal structures?
Answer:
Yes sand/silt have internal structures.
Explanation:
Sand is composed of silicon dioxide, in it silicon and oxygen atoms are joined by covalent bonds, it is mostly in the form of quartz and is in granular form.
Silt size is between sand and clay, composed of framework of silicon dioxide and feldspar.
What property of water results from its high boiling point?
A. High surface tension
B. Low density as a solid
C. Low vapor pressure
D. High heat capacity
High heat capacity of water results from its high boiling point. Thus, option D is correct.
What are the properties of water?Water has a few significant actual properties. Albeit these properties are recognizable as a result of the inescapability of water, a large portion of the actual properties of water are very abnormal.
Given the low molar mass of its constituent atoms, water has bizarrely huge upsides of thickness, surface strain, intensity of vaporization, and entropy of vaporization, which can all be attributed to the broad hydrogen holding connections present in fluid water.
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What is a plant cell’s source of energy for photosynthesis
Answer:
Your answer is the sunlight.
Explanation:
Chloroplasts are organelles found in plants that help harvest sunlight and break it down into sugar/energy; part of the photosynthesis process.
A light meal will digest in about how many hours?
Digestion of a light meal typically takes 3 to 5 hours, starting from the stomach where it breaks down into chyme and passes through the ileocecal sphincter to the large intestine. The sphincter's relaxation is controlled by nerves and hormones triggered by stomach activity.
Explanation:A light meal will typically digest within about 3 to 5 hours. The process starts in the stomach, where food is broken down into a substance called chyme. The food then passes through the ileocecal sphincter, a gate between the small and large intestines. This sphincter relaxes through the action of nerves and hormones, allowing food residue into the first part of the large intestine, the cecum.
The ileocecal sphincter is relaxed through two main factors. First, the digestive activity in the stomach provokes the gastroileal reflex, which increases ileal segmentation force. Second, the stomach releases the hormone gastrin, enhancing ileal motility and thus relaxing the ileocecal sphincter. After chyme passes through, backward pressure closes the sphincter, preventing backflow into the ileum.
Overall, the transit time and processing of the food through the stomach and small intestine usually takes 3 to 5 hours. However, retention time of food over the length of the whole intestine can be between 24 to 72 hours.
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a forest fire burns down most of the trees in a large forest l. the animals that live in the trees are forced to move to other areas. what kind of disturbance is this?
A. cyclical
B. small
C. primary
D. secondary
Answer:
Answer is D , Secondary
Explanation:
An example of Secondary Succession by stages:
1. A are of growth 2. A disturbance, such as a fire, destroys the forest
3. The fire burns the forest to the ground
4. The fire leaves behind empty, but not destroyed soil
5. Grasses and other herbaceous plants grow back first
6. Small bushes and trees begin to colonize the public area
7. Fast growing evergreen trees and bamboo trees develop to their fullest, while shade-tolerant trees develop in the understory
8. The short-lived and shade intolerant evergreen trees die as the larger deciduous trees overtop them. The ecosystem is now back to a similar state to where it began.
behavioral adaptation can be either instinctual or
Answer:
It can either be instinctual or learned.
Explanation:
An Instinctual behavior is one that a living being knows from the moment of birth, such as breathing or eating, but a Learned behavior is a behavior or habit acquired by personal experience, like speaking, walking, or playing video games.
Behavioral adaptation in animals can be instinctual or learned.
Explanation:Instinctual behaviors, not influenced by the environment, include innate responses such as mating systems or methods of communication. This kind of behavior is genetically embedded and could include actions like human babies grabbing a finger or birds migrating.
On the other hand, learned behaviors are influenced by environmental changes and previous experiences. Learning involves acquiring knowledge and skills through experience which enable an organism to adapt to its living conditions. Instances of learned behavior could include a creature's specific reactions to threats based on past encounters.
Therefore, instinctual behaviors provide a solid base of survival skills, while learned behaviors allow for versatility and adaptability in changing environments.
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Please help!!!!! ASAP!
Algae are microscopic plants that grow in the ocean. Algae must have sunlight, nutrients, and water to survive. What are these conditions called?
A. uncontrolled factors
B. limiting factors
C. necessary factors
D. non-living factors
Answer:
B) limiting factors
Explanation:
Phytoplankton, also known as microalgae, are similar to land-based plants in that they contain chlorophyll and require sunlight in order to live and grow. Most phytoplankton are buoyant and float in the upper part of the ocean, where sunlight penetrates the water. Phytoplankton also require inorganic nutrients such as nitrates, phosphates, and sulfur which they convert into proteins, fats, and carbohydrates.
In a balanced ecosystem, phytoplankton provide food for a wide range of sea creatures including krill, shrimp, snails, and jellyfish, that are in turn food for larger animals like sea turtles, fish and whales. However, under certain environmental conditions, such as the introduction of too many nutrients from land based sources of pollution, phytoplankton may grow out of control and form blooms.
These blooms can be problematic because the excess algae can block out sunlight, which is bad for plants like seagrasses that need sunlight to make food. Zooxanthallae, or symbiotic algae that live in the tissue of coral and supply coral with food, can also be impacted by algal blooms. Excess algae can also smother other critters living on the ocean floor.
When blooms eventually exhaust their nutrients, the phytoplankton die, sink and decompose. The decomposition process depletes surrounding waters of available oxygen, which marine animals need to survive. These oxygen-depleted waters are often called “dead zones,” since animals either die from lack of oxygen or leave the area to find more habitable waters.
The factors such as sunlight, nutrient, and water to survive all cinditions that for algae bloom which are called: B. limiting factors.
What are Limiting Factors?Limiting factors can be defined as those constrains that slows or stop the growth of a population. They may include food, biotic factors, or even competetion from other organisms in the environment for limited available resources.
Thus, factors such as sunlight, nutrient, and water to survive all cinditions that for algae bloom which are called: B. limiting factors.
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The continuous movement of water between the Earth's surface and the atmosphere is known as:
condensation
the hydrological cycle
evaporation
precipitation
Answer:
the hydrological cycle
Explanation:
The hydrological cycle is the cycle of the water between the Earth's surface (geosphere and biosphere) and the atmosphere. The water moves continuously between these spheres, making it one of the numerous agents that are interchanged and connect them. This cycle is one of the most important ones on Earth, as it is the one that enables life, precipitation, erosion, the existence of large bodies of water, rivers, and streams, the process of photosynthesis etc.
Answer:
hydrological cycle
Explanation:
Which of these internal feedback reactions does not need your brain? OA. Your leg jumping when it is hit by a reflex hammer B. Your deeper breathing when you need more oxygen C. Your body temperature rising when you have an infection D. Your heart beating faster when you are in danger
A. Your leg jumping when it is hit by a reflex hammer
2 Polnis
Which of the following is an advantage of an in vitro experiment?
Please help me
Which is the layer underground where all empty spaces are filled with a
combination of air and water?
A. Impermeable rock
B. Zone of saturation
C. Zone of aeration
D. Water table
The layer underground with all empty spaces filled with air and water is called the Zone of saturation.
Explanation:The layer underground where all empty spaces are filled with a combination of air and water is called the Zone of saturation. This zone is located below the Zone of aeration. The Zone of saturation is where the groundwater level is located and all available space is filled with water.
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Which of the following substances is not
involved in the chemical reaction that pro-
duces smog?
a. sunlight
b. particulate matter
C. automotive exhaust
d. ozone
B) particulate matter!
Sunny~ ☺
Particulate matter is not involved in the chemical reaction, which produces smog.
• The air pollution, which diminishes visibility is smog.
• The majority of the smog that one sees today is the photochemical smog.
• It is generated when sunlight reacts with atleast one volatile compound and nitrogen oxides in the atmosphere.
• The nitrogen oxides come from coal power plants, factory emissions, and car exhaust.
• The volatile compounds are discharged from paints, gasoline, and many cleaning solvents. When sunlight react with these chemicals, they produce ground level ozone or smog and airborne particles.
• The mixture of solid particles and liquid droplets found in the air is known as the particulate matter.
• The particulate matter has no role in the production of smog.
Thus, the correct answer is option b, that is, particulate matter.
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Theories basic to all of the life sciences include the
germ theory of disease.
theory of evolution by natural selection.
O two of these answers are correct
none of these answers are correct
O
cell theory.
Select the correct answer.
Which scenario describes unethical lab behavior?
O A. Danny stores the chemicals required for his experiment in flasks and beakers.
B.
Anna publishes the results of her experiment on the growth rate of saplings.
c.
Jason repeatedly runs an experiment until he gets the results he desires.
D. Mia records her observations of an experiment precisely and accurately.
Answer: The answer would be c.
Jason repeatedly runs an experiment until he gets the results he desires.