Answers
Answer:
The planet has too little mass to be a planet.
Explanation:
Answer: "The object appears to have no moons of its own."
Explanation: This sentence disqualifies the newly discovered object from being a planet because most major planets have moons. Even dwarf planets would have small moons.
Related Questions
Describe the type of movement as either facilitated diffusion, osmosis, or diffusion.
Answers
Answer:
1. Diffusion
2. Osmosis
3. Diffusion
4. Facilitated Diffusion
5. Osmosis
6. Diffusion
Explanation:
Facilitated Diffusion- Move molecules across the cell membrane in a passive transportation with membrane protein.
Osmosis- Move water molecules from high concentration to low concentration.
Diffusion- Evenly spread molecules from high concentration to low concentration.
1. Gases move across the room with ease without energy.
2. Water enter skin cells allowing cells to grow and wrinkle without energy.
3. Gases move with ease without energy.
4. Glucose requires energy to transfer.
5. Water leaves throat when concentration outside of throat is less that that inside the trough so water moves outwards.
6. Oxygen is uses passive diffusion does not require energy and will with ease move in and through a cell.
Which is the purpose of a cladogram?
O to calculate molecular clocks
O to classify extinct species
O to organize genetic information
O to analyze evolutionary relationships
Answers
Answer:
To analyse revolutionary relationships
ASAP!!!
Digestion and other biological processes are controlled by enzymes. Amylase is an enzyme which breaks starch into glucose.
A student investigated the effect of different pH on the rate of amylase activity. They followed the method below.
a. Known volumes and concentrations of starch and amylase solutions were placed in water baths at 37oC.
b. Buffer solutions of pH 5-9 were placed in different starch solutions.
c. Starch solutions and amylase solutions were mixed.
d. Every 10 seconds they tested the mixture for the presence of starch and the results were recorded.
Identify the independent variable in this experiment.
Answers
Answer:
Starch solution and Buffer solution
which earth sphere consists of all living things
Answers
The biosphere is made up of the parts of Earth where life exists. The biosphere extends from the deepest root systems of trees, to the dark environment of ocean trenches, to lush rainforests and high mountaintops. Scientists describe Earth in terms of spheres. The solid surface layer of Earth is the lithosphere
okok, eren or levi.
now choose.
Answers
Answer: levi
Explanation: because he’s much hotter
without autonomic nervous system input resting heart rate would be approximatelya. 70-80 beats/minb. 50-60 beats/minc. 100-120 beats/mind. 200-220 beats/min
Answers
Without autonomic nervous system input, the resting heart rate would be approximately 100-120 beats/min. Option C is correct.
The autonomic nervous system (ANS) is a complex network of nerves and ganglia that controls and regulates many of the body's involuntary functions, such as blood pressure, digestion, and respiratory rate.
The autonomic nervous system plays a critical role in regulating the heart rate by balancing the sympathetic as well as parasympathetic branches. The sympathetic nervous system releases norepinephrine, which increases the heart rate, while the parasympathetic nervous system releases acetylcholine, which slows down the heart rate.
Without this balance, the heart rate would be determined solely by the intrinsic pacemaker cells in the heart, which have a natural firing rate of around 100-120 beats/min.
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is frying eggs chemical or physical change? explain
Answers
Answer:
Chemical Change
Explanation:
Frying eggs are a chemical change because you can’t make the eggs raw again and the matter inside the egg has changed from a liquid to a solid.
Hopefully this helps you
pls mark brainlest
Which best describes convection? It relies on the collision of particles within or between substances. It occurs in solids, liquids, or gases that are heated. It results when portions of a liquid cool and rise. It is driven by temperature differences within a fluid.
Answers
The convection is driven by temperature differences within a fluid. Hence, the last option is correct.
What is convection?Convection refer to the heat transfer process via the bulk movement of molecules that arise within the fluids like the gases and liquids.
The initial heat transfer should be lies between the object and the fluid takes place via conduction, however, the bulk heat transfer arise because of the motion of the fluid.
hence, the last option is correct.
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Answer:
4
Explanation:
Quién propuso el primer mecanismo de herencia a partir de la observación y la experimentación con plantas?
Answers
Answer:
Gregor Mendel
Explanation:
Gregor Mendel fue un naturalista, biogista y matemático que demostró por primera vez los principios de la herencia utilizando su trabajo sobre las plantas de guisantes.
Publicó su trabajo en "Experiments in Plant Hybridization" en el año 1866. Al controlar la polinización, Mendel pudo cruzar plantas de guisantes con diferentes formas de rasgos. En el primer conjunto de experimentos de Mendel, experimentó con solo una característica a la vez. Los resultados de este conjunto de experimentos llevaron a la primera ley de herencia de Mendel llamada ley de segregación (Bio Libretexts).
A rainbow happens when sunlight passes through water droplets in the air.
Which of the following best explains why? *
A. Water droplets of different sizes filter out light of different colors.
B. Different chemicals in the water get energy and give off light of different colors.
C. Light of different colors travels at different speeds through different-sized water
droplets.
D. Light of different wavelengths is bent at different angles.
Answers
Answer:
b may be right answe!
.......
Which factors determine whether a cell is G0
Answers
Answer:
A period in the cell cycle in which cells exist in a quiescent state. GO phase is viewed as either an extended G1 phase. Which factors determine whether a cell enters G0? It depends on the organisms stage in development. It is the phase of the cell cycle during which a cell is neither dividing nor preparing to divide. During this period the cell performs regulatory and its basic cellular functions. The cell cycle typically refers to the process by which the cell can grow and repair itself.
Explanation:
Which variety of mouse is more likely to survive in a dry desert? (1 point)
O a mouse that has a shorter tail
O a mouse that has a longer tail
O a mouse that needs more water
a mouse that needs less water
Answers
Answer:
The fourth option
Explanation:
A mouse that needs less water, as the desert is an arid climate
Adapting to Life at Sea: Take a look at this article from Natural History Magazine. Explain the connection between sea snake's diet, the way in which they eliminate nitrogenous waste, and their need for freshwater. Then explain why this makes life (in at least one way) difficult for them in the ocean.
Answers
Answer:
They needs fresh water for drinking purpose.
Explanation:
The Sea snakes favorite food is fish and crustaceans. These sea snakes removes nitrogenous waste in the form of ammonia. They can live in salty water but needs fresh water for drinking purpose. This makes life difficult for sea snakes in the ocean because sea snakes needs fresh water to become hydrated and the sea water is salty which they can't drink so they depends on the rainfall for drinking purpose.
The sea snakes excrete their nitrogenous wastes via cloaca and some of it from the skin.
Sea snake
The snake excretes solid as well as liquid wastes from the cloaca but sometimes the flow of excreta gets disturbed due to change in the osmolarity between the environment and the body. The oceanic water is saline which is responsible for changing the osmolarity.This is making their survival difficult in the ocean.
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survival needs of the body include: survival needs of the body include: nutrients, water, growth, reproduction water, atmospheric pressure, growth, movement nutrients, water, movement and reproduction nutrients, water, atmospheric pressure, and oxygen
Answers
For the survival needs the body requires: nutrients, water, atmospheric pressure, and oxygen.
Nutrients are the organic components of the food that are required by the body for its maintenance. Each type of nutrient provides some essential factor for the body. For example, carbohydrates are required for energy and structural components; ;likewise proteins are essential for body-building and repair.
Oxygen is the most essential requirement of all the aerobic organisms. This is because oxygen aids in the process of cellular respiration and the energy production for the body. The oxygen partial pressure in the human body should remain at least 95% and above.
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Which statement best describes Earth's oceans?
Answers
Answer:
Ocean covers most 0f the planet's surface and contain nearly all its water.
Explanation:
The ocean is a constant form of salt-water that incorporates more than 70 percent of the Earth's exterior. Ocean courses command the world's climate and shake a kaleidoscope of experience. ... Smaller ocean domains such as the Gulf of Mexico, Mediterranean Sea, and the Bay of Bengal have recognized seas, gulfs, and bays.
Answer: C (i need 20 or more words lol)
What happens during fermentation?
Answers
roles of viruses maintaining balance in the environment
Answers
They infect and destroy the bacteria in aquatic microbial communities, comprising the most important mechanism of recycling carbon in the marine environment. The organic molecules released from the bacterial cells by the viruses stimulate fresh bacterial and algal growth.
Recording the number of points scored by an NBA team in each game of the 2018 season. What variable can be use
Answers
Discrete Random Variable
Enjoy :)
The number of points awarded for an NBA match is called Discrete because it can be counted with a given amount of time.
Therefore the type of variable that can be used to record the number of points scored by an NBA Team is called the Discrete Random Variable.
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Meselson and Stahl designed an experiment that would allow them to discern whether DNA replication occurs in a dispersive, semiconservative, or conservative manner. Can you identify the banding patterns predicted by each model after the first round of replication
Answers
Meselson and Stahl designed an experiment to determine the mode of DNA replication—dispersive, semiconservative, or conservative. They predicted distinct banding patterns after the first round of replication.
Meselson and Stahl's experiment involved using isotopes of nitrogen to label the DNA molecules and then analyzing the DNA using a technique called density gradient centrifugation. Here's a step-by-step explanation of the banding patterns predicted by each replication model after the first round:
1. Conservative Replication:
In the conservative replication model, the parental DNA molecule remains intact, and a completely new DNA molecule is synthesized. After the first round of replication, the banding pattern would show two distinct bands: one containing the original parental DNA molecule (labeled with a heavy isotope of nitrogen) and another band containing the newly synthesized DNA molecule (labeled with a lighter isotope of nitrogen). The presence of two distinct bands would indicate conservative replication.
2. Semiconservative Replication:
In the semiconservative replication model, each parental DNA strand serves as a template for the synthesis of a new complementary strand. After the first round of replication, the banding pattern would show two bands: one band with the original parental DNA molecule (labeled with a heavy isotope of nitrogen) and another band with a hybrid DNA molecule consisting of one parental strand and one newly synthesized strand (labeled with a combination of heavy and light isotopes). The presence of these two bands would indicate semiconservative replication.
3. Dispersive Replication:
In the dispersive replication model, the parental DNA molecule is broken into fragments, and the new DNA strands are synthesized using both parental and newly synthesized fragments. After the first round of replication, the banding pattern would show a single band with a hybrid DNA molecule. This hybrid molecule would consist of fragments containing both the original parental DNA (labeled with a heavy isotope of nitrogen) and newly synthesized DNA (labeled with a lighter isotope of nitrogen). The presence of a single hybrid band would indicate dispersive replication.
Meselson and Stahl's experiment demonstrated that the observed banding pattern matched the predictions of the semiconservative replication model. In subsequent rounds of replication, the banding patterns would gradually shift towards lighter densities, providing further evidence for the semiconservative nature of DNA replication.
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What is the function of the brain structure indicated by the arrow?.
Answers
Answer:
What Is The Function Of The Brain Structure Indicated By The Arrow? Coordination Of Complex Motor Patterns Processes Visual Data Conscious Thought Controls Emotions And Hormone Production This problem has been solved!
Explanation:
the graph shows temperature anomalies for earth over a 140-year period. a temperature anomaly is a variation from the average temperature. a positive temperature anomaly indicates a temperature that is higher than average. what conclusion can you draw from the information shown in the the graph?
Answers
Answer:
A
Explanation:
I believe the answer is a because temperatures won't rise because of natural causes they will rise because of human activities. these activities include deforestation farming and oil mining ect
Answer:
its d earth is expiericing global warming
Explanation:
its d
How do some chemicals increase the risk of a person getting cancer ?
A. By causing an increase of toxins in the skin
B. By causing cell mutations
C. By causing a deficiency of vitamin D
D. By causing a decrease in the immune response
Answers
Some chemicals increase the risk of a person getting cancer by causing cell mutations. Hence, option B is correct.
What do you mean by Mutations?Mutations may be defined as the sudden, stable, and inheritable change in the genetic material of the living entities.
Chemicals like ethidium bromide, acridine orange, benzopyrene, etc are carcinogens, i.e. the agents of causing cancer.
These agents are responsible for causing mutations in the cell which leads to cancer.
Therefore, some chemicals increase the risk of a person getting cancer by causing cell mutations.
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Review the chart, which shows the population sizes of three African animals in 1990 and 2000.
Answers
Answer:
lion and cheetah populations compete for the food source of zebras ,and lions outcome cheetahs
Identifying the independent and dependent variables in an experiment will help you better interpret and convey results. What is the difference between the independent and dependent variables in an experiment?
A. The independent variable is what is altered and the dependent is what is measured.
B. The independent variable is always a number, and the dependent variable is never a number.
C. The dependent variable is what the investigator controls, and the independent variable is what happens as a result of this.
D. The dependent variable is typically found in the first column of a table, and the independent variable is typically found in the second column.
Answers
Explanation- The independent variable is what causes it and it values in other study’s while the dependent variable is the effect.
Hope this helps :)
The main difference between the independent and dependent variables in an experiment is that the dependent variable is what the investigator controls, and the independent variable is what happens as a result of this. Thus, the correct option is C.
What are the different variables of an experiment?A variable is any factor, trait, or any condition which can exist in differing amounts or types in the experimental setup. There are different types of variables which include independent variables, dependent variables, categorical and continuous variables.
The dependent and independent variables are the most important variables in an experiment. The main difference between these two variables is that the dependent variable is what the investigator controls while the independent variable is what happens as a result of this.
Therefore, the correct option is C.
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What is photosynthesis
Answers
Answer:
Photosynthesis is the process where plants transform sunlight, water and carbon dioxide into oxygen to make a sugar which the plants need in order to survive.\(\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}\)
A hurricane devastates a population living on an island in the Atlantic Ocean, and only a few individuals survive. They then produce many children and several generations later the replenished population suffers from several inherited disorders that are very rare in other groups. A genetic event that explains this is
Answers
Answer:
Population bottleneck
Explanation:
Population bottleneck can be defined as a sharp decrease in a population size which can be attributed to various environmental influences including fires, hurricane, famines etc.
This leads to loss of alleles and a small population. With a smaller population size, celebrities mutations can occur, producing several inherited disorders.
What is the name given to the network of smaller blood vessels providing nutrition to the walls of large blood vessels
Answers
Answer:
capillaries
Explanation:
The two stages which make up the process of photosynthesis
are the light reactions and the ____
cycle.
Answers
Which process can occur in both mitosis and meiosis?
Answers
DNA replication and condensation, nuclear membrane degradation, spindle formation, chromosomal segregation and nuclear reformation.
ExplaAnswer:nation:
Answer:
Gene mutation
Explanation:
Mutations are changes in the DNA strand that are capable of being inherited.
Use the drop-down menus to complete the statements.
____occurs when an entire species cannot adapt to a long-term environmental change.
A population that cannot find food after a flood may
____to survive.
Over many generations, the buildup of favorable adaptations in a population may lead to___
Answers
Answer:
Extinction occurs when an entire species cannot adapt to a long-term environmental change.
A population that cannot find food after a flood may migrate to survive.
Over many generations, the buildup of favorable adaptations in a population may lead to speciation
Explanation:
I did this assignment on edge!! 100% correct :)
Extinction occurs when an entire species cannot adapt to a long-term environmental change. A population that cannot find food after a flood may migrate to survive.
What is extinction ?Extinction is the eventual devastation of a certain class of organism when they become unable to adapt to the environmental changes. Extinction can occurs through natural calamities such as flood, earthquake etc. or by human activities which destroys the habitats of the organisms.
A population that cannot find food after a flood may migrate to survive. They may travel over distances to gather food or water or to shelter somewhere.
Over many generations, the buildup of favorable adaptations in a population may lead to speciation. It is the process by which a new species is originated. They find better adaptation to reproduce and make their population common.
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