A.Osmosis occurs through a semi permeable membrane. Diffusion occurs in permeable membrane.
based on physical features this cell is most likely an ______ cell
A. eukaryotic plants
B. eukaryotic animal
C. prokaryotic bacterial
B. Eukaryotic animal
what must be done to breed dogs for a particular trait
Answer:
Selective breeding
Explanation:
In order to get a dog that has specific desirable trait/s, then the owners of the dogs have to get involved. The involvement should be in the manner of only allowing dogs that have the same trait to breed between each other, but in no case to be allowed to breed with other dogs that do not posses that particular trait. In this way, the offspring will inherit the desirable trait from their parents, and if the selective breeding continues, then there will be a new dog type on the scene that will be unique by its trait/s.
What factor maintains the same distance between strands in a DNA molecule?
A. pairing of double-ringed bases with triple-ringed bases
B. pairing of single-ringed bases with double-ringed bases
C. pairing of double-ringed bases with double-ringed bases
D. pairing of single-ringed bases with single-ringed bases
pairing of single-ringed bases with double-ringed bases
Answer:B
Answer:
b
Explanation:
The primary colors are_.
A.red, green, purple
B.yellow, blue, green
C.yellow, blue, red
D.blue, orange, red
Answer:
yellow, blue, and red are the primay colours
Answer:
The answer is C.) yellow, blue,red.
Explanation:
why are scientists who are searching for life on other planets studying archeabacteria
Answer: Archaebacteria can survive in extreme environments similar to those on other planets and are good indicators of how extra-terrestrial life would function.
Explanation: Archaebacteria resemble the earliest cells found on Earth and are extremophiles who can live in hot, acidic environments without oxygen (anaerobic).
Certain bacteria produce a chemical that makes them resistant to penicillin. Since these bacteria reproduce asexually, they usually produce offspring that...?
Bacteria that produce a chemical making them resistant to penicillin typically pass this resistance on to their asexually reproduced offspring, increasing the proportion of penicillin-resistant bacteria in the population.
Explanation:Since these bacteria reproduce asexually, they usually produce offspring that are also resistant to penicillin. This resistance typically arises through a mutation that enables the bacteria to synthesize an enzyme called penicillinase, which can break down penicillin. This ability to degrade penicillin is especially concerning with bacteria like Methicillin-resistant Staphylococcus aureus (MRSA) that reproduce by growing and dividing into two, passing on the resistance trait to subsequent generations. One of the main reasons for the development of resistant bacteria is the overuse and incorrect use of antibiotics. The misuse, such as not completing a full course of prescribed antibiotics, leads to natural selection where non-resistant forms are eliminated and the proportion of resistant forms is increased in the population. Even when bacteria are separated by a filter that prevents cell movement but allows free exchange of cellular material, resistance can spread as sensitive bacteria acquire resistance through genetic mechanisms such as lateral gene transfer.
How do earthworms get oxygen to their cells?
They breathe through their skin. Air dissolves on the mucus of their skin, so they MUST stay moist to breathe.
If worms dry out, they suffocate. As fresh air is taken in through the skin, oxygen is drawn into the worm's circulatory system, and the worm's hearts pump the oxygenated blood to the head area.
Earthworms breathe through their skin which contains mucus where the atmospheric air is dissolved. This dissolved air reaches the circulatory system which transfers oxygen to each cell in a random manner.
Why earthworms breathe through the skin?Earthworms breathe through their skin because for maintaining their surface body moist and slimy which is essential for their metabolic activities.
Therefore, it is well described above.
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Jim and Lisa both have insect collections. Jim is grouping and comparing the properties of the insects. Lisa is comparing and contrasting different insects.
Which one is doing a science investigation?
A.
Lisa only
B.
both Jim and Lisa
C.
Jim only
D.
neither Jim nor Lisa
Final answer:
Both Jim and Lisa are engaging in science investigations by collecting and organizing data through comparing and contrasting the properties and differences of insects, which are essential practices in scientific research. Option B is correct.
Explanation:
When considering who is conducting a science investigation between Jim and Lisa, we must look at the actions each is performing. Jim is grouping and comparing the properties of insects, while Lisa is comparing and contrasting different insects. Both activities involve collecting and organizing data, which is a fundamental part of the scientific method. Therefore, the answer is B. both Jim and Lisa are doing a science investigation since both are engaged in activities that involve observing, comparing, and contrasting, which are key components in any scientific exploration. These comparisons can lead to forming hypotheses, which could then be tested through further investigations. In science, such comparisons and contrasts are crucial as they can provide insights into relationships, structures, and behaviors that contribute to scientific understanding.
What climate condition occurs during El Niño?
During El Niño, there are warmer sea surface temperatures in the Pacific Ocean, resulting in altered weather patterns globally. It can cause both heavy rainfall and flooding in some areas, and drought conditions in others. For instance, it can lead to an increase in the population of deer mice in the southwestern United States.
Explanation:The climate condition that occurs during El Niño is characterized by warmer-than-average sea surface temperatures in the central and eastern tropical Pacific Ocean. This leads to changes in ocean currents and atmospheric circulation, resulting in altered weather patterns around the world.
During El Niño, the normally dry western coast of South America experiences increased rainfall, while regions such as Southeast Asia and Australia may experience drought conditions. The impacts of El Niño can include heavy rainfall, flooding, and storms in some areas, while other regions may experience dry conditions and decreased rainfall.
For example, during El Niño, the southwestern United States may experience increased rainfall, leading to ecological changes such as an uptick in the population of deer mice, which can carry diseases like Sin Nombre (hantavirus).
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El Niño is a climate condition characterized by the warming of ocean surface temperatures and weakening of trade winds. It affects rainfall patterns, temperature, and can lead to flooding, droughts, and changes in tropical cyclones. El Niño disrupts normal climate patterns and has worldwide impacts on weather.
Explanation:El Niño is a climate condition that occurs in the equatorial Pacific Ocean. It is characterized by the warming of the ocean surface temperatures and the weakening of the trade winds. During El Niño, there are several climate effects that can be observed worldwide, including changes in rainfall patterns and temperature.
In the Americas, El Niño brings wetter conditions to the western coast of South America, leading to heavy rainfall and flooding in some areas. It also leads to drier conditions in parts of Southeast Asia and Australia, causing droughts and wildfires. El Niño can also affect the strength and frequency of tropical cyclones in the Pacific and Atlantic Oceans.
Overall, El Niño disrupts the normal climate patterns and can have significant impacts on weather conditions around the world.
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Which plant structure is MOST like the hyphae of fungi?
Answer:
The roots as they absorb water and nutrients.
Answer:
In addition, fungal "hyphae," which are long, thread-like structures, resemble the roots of plants.
Explanation:
A(n) _____is the basic unit of matter.
Answer:
Atom
____
Hope this helps you! :)
_____ is all the individuals of a species that live together in an area.
Community
Population
Ecosystem
Ecosystem is the correct answer
what cellular process releases energy by breaking down glucose when oxygen is not available
a. aerobic Respiration
b. The Calvin cycle
c. photosynthesis
d. Anaerobic Respiration
Answer:
d
Explanation:
because its food that i choke on
Answer:
d. Anaerobic Respiration
Explanation:
Living cells require energy to perform their various life functions. This energy is obtained by breaking down high energy storing food molecules in a process called CELLULAR RESPIRATION. Cellular respiration is a metabolic (catabolic) process that breaks down glucose to release carbondioxide, water and ATP (energy).
Cellular respiration can either be aerobic or anaerobic depending on whether oxygen is present or not. Aerobic respiration occurs in the presence of oxygen while anaerobic respiration occurs in the absence of oxygen. In the process of aerobic cellular respiration, Oxygen acts as a final electron acceptor in the ETC while in anaerobic respiration, another molecule other than oxygen e.g Sulfur acts as the final electron acceptor.
Some bacteria and yeast employs anaerobic respiration.
which biomolecule contains nitrogenous bases
Answer:
RNA
Explanation:
RNA nucleotides are defined by the sugar ribose, and contain a slightly different set of nitrogenous bases: adenine, guanine, cytosine, and uracil. RNA molecules do not contain thymine. Unlike DNA, RNA is usually present in a single-stranded form.
Either DNA or RNA because they both contain nitrogenous bases
What does blood pressure do?
plays a role in circulation
monitors body functions
supports respiration
provides gas exchange
Answer:
Plays a role in circulation
Explanation:
When your heart beats, it squeezes and pushes blood through your arteries to the rest of your body. This force creates pressure on those blood vessels, and that's your systolic blood pressure.
Hope this helps :)
the answer is plays a role in circulation
ON A TIMER!!!
During the formation of metamorphic rocks, what most likely causes pressure to increase?
Answer:
Explanation:
Increased heat and pressure will change the sedimentary rock into metamorphic rock. Coal is formed when plant debris at the bottom of bodies of water experiences pressure. ... Pressure causes these and other particles to form sandstone at Earth's surface.
How many oceans are their on earth
Answer:
The answer to your question is 4. The earth has four oceans.
Explanation:
The four oceans that we have are: The Pacific, Atlantic, Indian, and Arctic.
Hope this helped! God bless.
There are five oceans on Earth. Each ocean leads into the next, creating one huge expanse of water, covering 71 percent of Earth's surface.
The smallest ocean is the Arctic Ocean, with an area of 5,880 sq. mi. (9,485 sq km).
The Pacific Ocean is by far the biggest ocean. It covers nearly one-third of Earth's surface!
Which of the following is not an example of the use of a pheromone?
a.
Wolves mark their territories by urinating at the boundaries.
b.
Hyenas give off an odor that keeps different clans of hyenas apart.
c.
Poisonous snakes wind around each other and butt heads.
d.
Skunks release a rotten odor when they are threatened.
Answer:
A. because research not show yet about pheromones for wolves
fuel that is formed from burning recently living, organic products is
Answer:
Biomass fuel
Explanation:
Here is where i found my information. https://quizlet.com/76893830/other-organic-fuels-flash-cards/
Answer:
biomass fuel! it s correct!
Explanation:
when a pod of dolphins work together to concentrate together a school of fish, they are displaying what? A. parasitism B. mutualism C. cooperation D. competition
The answer is C. Cooperation
Answer:
c cooperation
Explanation:
What type of relationship do humans and honeyguides have? Explain your response.
The bird leads the humans to the honey and both species come out of the deal happier than when they went in. In biological terms, this is mutualism. Though humans get something out of it, we are undoubtedly being exploited in the process.
Habitat ____________ splits ecosystems into pieces and makes populations more vulnerable to disturbances or climate change.
Answer:
fragmentation
Explanation:
hope this helps
Answer:
Habitat FRAGMENTATION splits ecosystems into pieces and makes populations more vulnerable to disturbances or climate change.
Explanation:
Habitat fragmentation is discontinuities in a organism's preferred ecosystem, causing disturbance in a population and ecosystem decay. .... populations more vulnerable to disturbances or climate change.
how does the presence of similar fossils on different continents support the idea of tectonic plate movement?
when the tectonic plates move the bones are carried from one place to another
The presence of similar fossils on different continents supports the idea of tectonic plate movement because it indicates that these continents were once connected in a landmass known as a supercontinent, and they have since drifted apart due to the movement of tectonic plates.
What are tectonic plates?Tectonic plates are large pieces of the Earth's lithosphere (the outermost solid layer of the Earth) that move and interact with each other. These plates can be thought of as giant puzzle pieces that fit together to form the Earth's surface.
When tectonic plates move, they can carry the continents they support along with them, leading to the separation of previously connected landmasses.
For example, the fossil remains of the freshwater reptile Mesosaurus have been found in both South America and Africa, which suggests that these continents were once connected.
The presence of the same species in two separate locations indicates that they were once a single population and that they were likely separated when the landmass they lived on split apart.
This observation supports the theory of continental drift and plate tectonics, which explain the movement of the Earth's continents over time.
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What type of power does this structure produce?
Answer:
A-Hydroelectric, hydro means water
Explanation:
The correct answer is A) hydroelectric.
The type of power that this structure produces is hydroelectric.
In times when we need to take care of the environment, hydroelectric power is a good way to produce electricity in large cities.
Also known as hydroelectric energy, this form of renewable energy is "environmentally friendly" in that it uses the power of water -the movement of water- to generate electricity. That is why governments invest in public infrastructure and built dams that help to produce electricity.
In astronomy, the term perihelion refers to the point in the orbit of an asteroid, comet, or planet at which it is closest to the sun. Aphelion refers to the point at which the object is furthest away from the sun. Research facts about the dwarf planet Ceres. Calculate the average orbital speed of Ceres in miles/hour when it is closest to the sun and when it is farthest away.
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Answer:
Orbital speed is given by the formula:
[tex] v=\sqrt{\frac{GM}{r}} [/tex]
Mass of Ceres, M = [tex] 1.98\times 10^{30} kg[/tex]
The closest distance of Ceres to sun is : 382,620,000,000 m
orbital speed of Ceres at perihelion is:
[tex] v=\sqrt{\frac{1.67\times 10^{-11}\times 1.98\times 10^{30}}{382,620,000,000}} = 9296.23 m/s =20795.07 miles/hour[/tex]
The farthest distance of Ceres to sun is : 382,620,000,000 m
orbital speed of Ceres at aphelion is: 414,010,000,000 m
[tex] v=\sqrt{\frac{1.67\times 10^{-11}\times 1.98\times 10^{30}}{414,010,000,000}} = 8936.87 m/s = 19991.2 miles/hour[/tex]
which type of scientific statement is defined as a statement of fact that is generally accepted to be true and universal because it has always been observed to be true? options: theory, probability, law, hypothesis.
Answer:
law
Explanation:
Answer:
law
Explanation:
Tsunamis are _____.
waves that are produced by tidal forces
waves that cannot cause damage on land
often generated by movements of the ocean floor
also known as tidal waves
Tsunamis are often generated by movements of the ocean floor.
Option C
Explanation:
Tsunamis are huge gain ocean waves which are able to generate massive destruction, this huge damage can cause environmental distress. These waves are produced by earthquakes or underwater landslide. Mostly the tsunamis generated due to earthquake, induced movement by the ocean floor. These tsunami waves are generated more by the ocean floor which have greater length. They travel as fast as jet planes and within seconds can cover the whole area.
What type of virus uses RNA , and not DNA, as its genetic material?A. Retroviruses. B. Parvoviruses. C. Adenoviruses. D. Bacteriophages
Answer:
A
Explanation:
When these viruses insert their genome into the host cell, they usually have a reverse transcriptase enzyme that converts the RNA to DNA before it is integrated into the host genome. This is before the host cell machinery is hijacked to replicate the viruses components.
Answer:
A
Explanation:
In a population of 100,000 visuals 100 new individuals were born at 200 individuals over the course of a year died which equation shows how to calculate the population growth rate of this population
Answer:
100,000+100-200=x
Explanation:
100,000+births-deaths
100,000+100-200=x
Answer:
y = -100x + 100,000
Explanation:
the 200 deaths per year and 100 births per year even put to -100 per year where each year is x and the starting population was 100,000 so +100,000
People have slowly realized the importance of managing and maintaining ecosystems. Match the environmental issues with their most appropriate solutions.
an increase in air pollution
a decrease in the number of trees
the loss of a bird habitat
an endangered aquatic species
provide nesting boxes
encourage the use of public transport
regulate recreational activities such as boating and fishing
plant new trees and protect existing trees
Answer: A decrease in a number of trees—plant new ones and protect existing trees
The loss of a bird habitat—provide nesting boxes
An endangered aquatic species— regulate recreational activities such as boating and fishing
A increase in air pollution— encourage public transportation
I hope this helps!
Answer: 1.An increase in air pollution. : Encourage the use of public transport.
2. A decrease in the number of trees.: Plant new trees and protect existing trees.
3. The loss of a bird habitat.: Providing nesting boxes.
4. An endangered aquatic species.: Regulate recreational activities such as boating and fishing.
Explanation:
1. The air pollution increases due to the discharge of partially combusted gases released from vehicles like carbon dioxide, carbon monoxide and others. These gases pollute the air. Thus, the use of vehicles should be minimized. Thus people should use public transport to reduce pollution.
2. The trees may reduce in number due to clear cutting, deforestation and because of other reasons. The population of trees in a region can be restored by growing plants.
3. The decrease in bird population may be because of habitat loss, pollution and climatic changes. The population of birds can be restored by providing them with boxes to stay as nest.
4. An endangered species is one which is left with limited population. An endangered aquatic species population can be managed by regulating the recreational activities as human beings may directly or indirectly affect them by throwing garbage to water bodies, oil spill and by other ways.