Answer:In what part of the world are the greatest number of extinctions occurring? in deserts in the Arctic in tropical rain forests Q-26329
Alana summarized what happens when a ball sitting on top of a grassy hill rolls down the hill.
The motionless ball has potential energy. Once the ball starts to roll down the hill, new kinetic energy is made. As the ball rolls across the grass, it slows down. The kinetic energy of the ball is converted to other forms of energy.
Which best describes Alana’s error?
The motionless ball does not have energy because it is still.
Kinetic energy is not made; it is a result of energy transformation.
The ball cannot slow down unless someone touches it.
The energy is not converted; it disappears.
Answer:
It's actually B that guy is wrong on Edge.
Explanation:
Alana's error regarding the energy of the ball is that kinetic energy is not made; it is a result of energy transformation. The second option is true regarding the energy conversion.
What are the various types of energy?The law of conservation of energy says that energy is neither created nor destroyed but only converted from one form to another, such as from the kinetic to the potential and vice versa. Here, the ball is placed at the top, where it has no motion, but the ball has potential energy, and that potential energy gets converted into kinetic energy when the ball starts to roll down the hill. After sometime, the ball spontaneously stopped on the ground, and the kinetic energy was converted into potential energy.
Hence, Alana's error regarding the energy of the ball is that kinetic energy is not made; it is a result of energy transformation. The second option is true regarding the energy conversion.
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Many organisms can reproduce asexually through mitosis, while other organisms reproduce sexually, and their cells carry out meiosis to form gamers. In situation where an organisms fall prey to many efficient predators, which of these processes would be most beneficial
Answer:
The answer is meiosis
Explanation:
Mitosis results in daughter cells with the same genetic component as the parent. Hence, a drastic change in the environment may wipe out the entire population of organisms that only reproduce by mitosis.
What is the definition of the Michaelis-Menten constant, Km, for an enzyme?
Answer:
Km is the Michaelis-Menten constant which shows the concentration of the substrate when the reaction velocity is equal to one half of the maximal velocity for the reaction. It can also be thought of as a measure of how well a substrate complexes with a given enzyme, otherwise known as its binding affinity.
Write two differences between the unicellular and multicellular organisms.
what is a cell membrane
Answer:
The cell membrane is the semipermeable membrane of a cell that surrounds and encloses its contents of cytoplasm and nucleoplasm. The cell membrane separates the cell from the surrounding interstitial fluid, the main component of the extracellular fluid.
Explanation:
Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. ... Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions
Answer: The cell membrane is the semipermeable membrane of a cell that surrounds and encloses its contents of cytoplasm and nucleoplasm. The cell membrane separates the cell from the surrounding interstitial fluid, the main component of the extracellular fluid.
Explanation:
Cell membrane, also called plasma membrane, thin membrane that surrounds every living cell, delimiting the cell from the environment around it.
Which of the following galaxy types is usually made of mostly older stars
40 points :))) please help and I will give you Dino nuggiez
Answer:
i cant see it well
Explanation:
Answer:
damage, genes, oncogenes, divide, healthy, self-destruct, damaged, Apoptosis
First one answer gets a brainly. Please look at the picture & answer the question .
Answer:
A and C
Explanation:
Which phrases describe a metamorphic rock
Answer:
formed by a volcano
Explanation:
Rocks are formed on Earth as igneous, sedimentary, or metamorphic rocks. Igneous rocks form when rocks are heated to the melting point which forms magma . Metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock.
Answer:
formed from a volcano
Explanation:
i took the test got it right, hope this helps! :)
ANSWER ASAP- Which organelles are involved in the production of proteins? Select two options.
endoplasmic reticulum
mitochondrion
ribosome
lysosome
cell membrane
Answer:
Endoplasmic reticulum, and ribsome
Both of them are in the production of proteins
Rough endoplasmic reticulum is a membrane-bound organelle that uses ribosomes on the membrane surface to carry out its function of producing proteins. Thus, option A,C is correct.
What is the role of endoplasmic reticulum and ribosome?Generally speaking, the endoplasmic reticulum's function is to produce proteins that allow the rest of the cell to function. It can be smooth or rough.
These proteins are made by tiny, circular, elongated organelles called ribosomes, which are located on the rough endoplasmic reticulum.
On the rough ER, proteins are made. The ER receives those that have been processed translationally.
A signal peptide at the N terminus, which is recognized by a particular receptor (docking protein) on the ER membrane, is necessary for this insertion.
Therefore, both endoplasmic reticulum and ribosome are involved in the protein formation.
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What does it mean to say that the U.S. Government has a balanced budget?
Explanation:
A balanced budget occurs when revenues are equal to or greater than total expenses. A budget can be considered balanced after a full year of revenues and expenses have been incurred and recorded.
The graph below shows the growth of a population of rabbits in a forest ecosystem. Which environmental factor could have caused the change indicated by "A" on the graph? Rabbit Population in a Specific Ecosystem B Population Size AA- C с A Time o increased availability of food increased predation by herbivores o increased number of decomposers O increased competition among carnivores
Answer:
Increased avaliability of food
Explanation:
I need answers 1-20 so I can double-check my answers i ned the correct answers
here are my answers:
1a
2rivers
3they get it from the ocean
4idk
5true
6 false
7it can cause intestinal damage and burn you alive
8idk
9it is to clear
10idk
12filtration
13true
14skip
15algey
16b
17a
18c
19b
20water pressure
this is confuseing im sorry wish i could help
Where are the Galápagos Islands located?
Answer:
Pacific Ocean
The Galapagos Islands are located 1000 km off Ecuador's coast in the Pacific Ocean. The Galapagos archipelago consists of 13 major islands, 6 smaller islands and many islets.
Explanation:
which blood vessel has the highest concentration of glucose
Answer:
The mesenteric veins and the hepatic portal vein mate
What is an action of the highlighted muscle?
Answer:
Hi there Braniac! I know your new so let me help you out!
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1. Which factor does not affect species richness on islands?
Age of island
Geographical location
Habitat size
Island shape
Question 2
Which combination of factors will result in an island community with the lowest ecological tolerance?
Upwelling of colder ocean water, increased sunlight
Introduction of invasive species, increased freshwater sources
Increased human population, increased agricultural expansion
Increased colonization, decreased extinction rate
Question 3
The table depicts characteristics of five amphibian species (A–E). Use the information in the table to answer the following question:
Ecological Parameter Species A Species B Species C Species D Species E
Temperature Range 15–30 °C 10–40 °C 15–20 °C 10–30 °C 15–25 °C
Freshwater or Brackish Water Fresh/brackish Brackish Brackish Fresh Fresh/brackish
Food Sources Varied Two mainland species of grasshopper Only island arthropods Varied Varied
Habitat Lakes Estuaries/ponds Estuaries/ponds Lakes Lakes
Which individual(s) of the species listed in the table would likely die if moved to a new island habitat?
Species C and E
Species A and C
Species A only
Species B only
Question 4
Island biogeography studies the ________ on islands.
mountain topography
natural disasters
distribution of species
climate change
Question 5
Increased deforestation reduces the habitat for an arthropod species preferred by an island reptile. Which of the following descriptions predicts the most likely outcome for these two species?
The reptile population increases as arthropods are confined to smaller sections of the island.
The reptile population decreases as arthropods decrease with their habitat.
Island arthropods decrease as the reptile population increases.
Island arthropods and reptiles both increase in the island habitat.
Question 6
Which statement describes a factor in the island biogeographical model?
Dispersing species are more likely to find smaller secluded habitats
Smaller populations are less likely to go extinct
Large islands have less available niches for immigrating species
Islands closer to the mainland have greater colonization
Question 7
Which of the following ideas helps explain the factors that affect island colonization of and species richness for a region?
Species-area effect
Rescue effect
Target effect
Time/stability hypothesis
I and II
II and III
I, II, IV
I, II, III, IV
Answer:
Ecological tolerance refers to the ability of an organism, or animal to be able to adapt and survive changing environmental conditions.
The combination of factors that would result in an island community with the lowest ecological tolerance would be option B Introduction of invasive species, increased deforestation because with the introduction of invasive species, there would be more competition for natural resources such as food, water, sunlight; and with increased deforestation, there is greater chances of soil erosion.
interact with other living organisms and
interact with the physical environment
Insular biogeography or island biogeography is a field within biogeography that examines the factors that affect the species richness and diversification of isolated natural communities. The theory was originally developed to explain the pattern of the species–area relationship occurring in oceanic islands.
The reptile population decreases as arthropods decrease with their habitat
Migrating species are more likely to find larger habitats over smaller ones. Explanation: The concept of island biogeographical model establishes that larger islands and habitats will have a larger number of species than a smaller island. Larger islands have more tendency to attract new species.The species–area relation, whereby the number of species in a spatial unit increases with that unit’s area, well predates the MacArthur and Wilson theory of island biogeography, having been documented for about 150 years. Two general kinds of models for this relation have been proposed. The first has number of species predicted from an assumed species–abundance distribution and the total number of individuals of all species combined (assumed proportional to area). The second develops species–area relations from MacArthur and Wilson’s species-equilibrium approach.
PLEASE HURRY DUE IN 5 MINS
What is some of the evidence used by Galileo to support Copernicus’s model and disprove Aristotle and Ptolemy’s?
Each planet spins in an epicycle.
Planets appear to move backward.
Jupiter has moons orbiting it.
The religious and cultural beliefs supported this model.
Claudius Ptolemaeus (85-165 AD) or Ptolemy believed Aristotle's theory that the Sun, Moon, and planets circled the Earth.
However, he improved it to account for the fact that planets sometimes appear to travel backward across the sky, called retrograde motion.
Galileo Galilei used various pieces of evidence to support Copernicus's heliocentric model and challenge the geocentric model proposed by Aristotle and Ptolemy. Some of the key evidence and observations that Galileo put forward include:
Observations of the phases of Venus: Galileo observed that Venus goes through phases just like the Moon.Observation of Jupiter's moons: Galileo discovered four moons orbiting Jupiter, now known as the Galilean moons (Io, Europa, Ganymede, and Callisto). Observation of Saturn: Galileo observed Saturn using his telescope and noticed the presence of what he called "ears" or "appendages" on each side of the planet.Lunar observations: Galileo's observations of the Moon revealed mountains, valleys, and craters, contradicting the notion of a perfect and unchanging celestial realm put forth by Aristotle and Ptolemy.Sunspot observations: Galileo observed sunspots, dark spots on the surface of the Sun.Thus, it's worth noting that while Galileo provided empirical evidence to support the heliocentric model, his ideas and evidence faced strong opposition from the religious and cultural beliefs of the time, as they contradicted the established dogma of a geocentric universe.
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DNA and protein together form a complex called
Answer:
chromatin!
Explanation:
what is the job of tRNA
a. to make our mRNA
b. to bring amino acid to the ribosome in the correct order
c. to bring the nucleus acid to the ribosome in the correct order
d. to to make more codons so translation can continue to occur
Answer:
To make our mRNA
Explanation:
I think it is this one, but I am not sure, sorry if it is wrong. :(
But I do know this, I think it might help you:
A transfer RNA (tRNA) is a special kind of RNA molecule. Its job is to match an mRNA codon with the amino acid it codes for. You can think of it as a kind of molecular "bridge" between the two. Each tRNA contains a set of three nucleotides called an anticodon.
True or False: Eukaryotic cells are cells that contain a nucleus.
the eukaryotic cells does contain a nucleus
Answer:
The answer is false
Explanation:
Five factors that affect the rate of chemical reactions and describe each
Answer:
Five factors typically affecting the rates of chemical reactions will be explored in this section: the chemical nature of the reacting substances, the state of subdivision (one large lump versus many small particles) of the reactants, the temperature of the reactants, the concentration of the reactants
Explanation:
What are the four processes in which matter cycles on Earth?
Answer:In the rock cycle, rocks and matter go through uplift, weathering, erosion, deposition, melting, crystallization, and metamorphism as they travel between Earth's surface and its interior layers. In the water cycle, water particles undergo evaporation, condensation, precipitation, and flow.
Explanation:
What makes up the "tail" of an ATP molecule?
Answer:
The tail of an ATP molecule is made up by 3 phosphate groups link together by the help of 2 high energy phosphoanhydride bonds. Explanation: ATP or adenosine triphosphate is an energy rich compound that contain adenine base, ribose sugar and 3 phosphate groups.
Explanation:
IF RIGHT BRANLIST PLEASE
Answer:
The tail of an ATP molecule is made up by 3 phosphate groups link together by the help of 2 high energy phospho anhydride bonds.
Think and discuss:Suppose you are a farmer trying to grow plants in a greenhouse. Why would it be important to know what the limiting factor is
Answer:
Because limiting factors affect plant growth
Explanation:
A limiting factor is a condition that limits the population's growth in an ecosystem by slowing or stopping its growth. These factors are generated by the lack or excess of a particular resource. In plants, limiting factors include, among others, light, water, temperature, oxygen, food, (i.e., nutrients and minerals), space, etc. In this case, the farmer must know which greenhouse conditions are limiting factors in order to ensure the survival and optimal development of the plant population.
Part B
What are the strengths and weaknesses of the cell model?
Answer:
strengths:The cell model shows all the process involved, and it's easy to understand, even if a person isn't familiar with the process
weaknesses: it doesnt show organelle or rna
Answer:
The cell model clearly shows all the processes involved, and it’s easy to understand, even if a person isn’t familiar with the process. The actual cell diagram doesn’t show all the organelles, so it’s an inaccurate representation of the cell. It also doesn’t show all the RNA involved in transcription and translation.
Explanation:
Plato / Sample Answer
How does a stem cell become specialized into a heart cell?
Answer:
Explanation:
stem cells are manipulated to specialize into specific types of cells, such as heart muscle cells, blood cells or nerve cells. The specialized cells can then be implanted into a person. For example, if the person has heart disease, the cells could be injected into the heart muscle.
Daughter cells are created when stem cells divide properly in the body or a lab to create more cells. These daughter cells either develop into fresh stem cells or into differentiated cells with a more specific role, such as bone, blood, brain, or heart muscle cells.
How are stem cells differentiated?According to research, cardiomyocytes made from pluripotent stem cells can develop into beating human heart muscle cells that both produce the required signals and restore muscle lost during a heart attack.
Stem cells have the ability to multiply and develop into a variety of relatively mature cells. When inserted into a blastocyst, embryonic stem cells have the ability to develop into any organ in the human body.
Therefore, theoretically, every organ in the body might be replaced using embryonic stem cells.
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what type of igneous rocks are the Hawaiian islands
The Hawaiian Islands are nearly entirely made of basalt lava, the most abundant type of rock on the planet.
What is igneous rock and its type ?Hot, molten rock crystallizes and hardens to produce igneous rocks, which are named after the Latin word for fire. The melt begins deep inside the Earth around hot regions or active plate borders, then it rises toward the surface. Depending on where the molten rock hardens, igneous rocks are classified as either intrusive or extrusive.
Intrusive Igneous Rocks: When magma is imprisoned in the Earth's interior, intrusive, or plutonic, igneous rocks are created. The individual mineral grains have a very long time to develop because of the slow cooling, and as a result, they reach a comparatively enormous size. Rocks that are intrusive have a coarse-grained texture.
Thus, Hawaiian islands are made up of basalt ; the most common rock on the earth.
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A rock rolls down a hill. Which form of energy is this an example of?
Chemical
Electrical
Mechanical
Thermal
Answer:mechanical
Explanation:
Quick question. What is this? Should I move out???
Answer:
thats a bed bug you're screwed
Answer 26-28 please thanks
Answer: 26=3
27=16
28=50
Explanation: