Answer:
A good control for that experiment would be a mouse or mice who have been given no vitamins.
Explanation:
So, that they can be compared to the mice who have been given vitamins.
Answer:
The good control would be if a mouse or mice who have given food without vitamin for ten days.
Explanation:
The good control of an experiment must remain equal or the same throughout in order to receive precise or accurate results. It is something that is used as an ideal of comparison for checking the end results of an experiment.
A mouse who have given food without equal or no vitamin for ten days would be a good control as it will help in comparing the weight with the ten mice who were given an equal amount of vitamin for ten days.
Thus, good control would be if a mouse or mice who have given food without vitamins for ten days.
why is a lake with a clay bottom able to hold more water than a lake with a sand bottom
Answer:
Clay is the least porous of all soil types. It is the opposite of porous in comparison to sand.
A vertical feeding pattern is _____.
A vertical feeding pattern is a way for animals to avoid competition.
Answer:
a way for animals to avoid competition
Explanation:
What is the most appropriate way to present the data below?
A.bar graph
B.chart
C.line graph
D.pie graph
Answer:
bar graph
Explanation:
Answer: Option A."Bar Graph"
Explanation:
The best way to represent the given data is bar graph.
A bar graph is represented with rectangular bars which changes as per the comparative values or data.
Bar graphs are generally used to analyse the small or large changes in the data (variables) with respect to the changing time.
Hence, for the given data, weeks can be plotted on x-axis (time ) and plant mass (variables) can be plotted on y-axis in a bar graph.
what happens when an electrical gradient and a chemical gradient are applying opposite forces to active transport?
A) they strengthen each other
B) they negate each other
C) they triple the strength of each other
D) they weaken the power of each gradient by half
Answer:
Option B, they negate each other
Explanation:
Electrical gradient force is more or less equal to the chemical gradient during an active transport. The number of electron produced during the establishment of chemical gradients, were transferred through the cellular circuit to produce electrical gradient of an equivalent amount in opposite path.
Thus, both electrical and chemical gradient are opposite to each other and hence they negate out each other.
Option B
Answer:
B) they negate each other
Explanation:
The combined effects of electrical and chemical gradients lead to the formation of an electrochemical gradient. This simply means that both an electrical gradient and a chemical gradient can have an effect on the movement of substances, and that their effects may combine (the chemical and electrical gradients encourage movement in the same direction), or they may negate (one gradient opposes another).
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Which process is shown in the diagram?
A) translation
B)transcription
C)removal of non coding regions
D) copying
The answer is A) Translation
The process shown in the diagram is transcription, where DNA is copied into RNA.
Explanation:The process shown in the diagram is transcription. Transcription is the process by which the information contained in a DNA sequence is copied into an RNA molecule. Removal of non coding regions pertains to the process where introns (non-coding regions) are removed from the primary mRNA transcript to produce the final mRNA. Copying usually refers to DNA replication, a process where a DNA molecule is copied to generate two identical DNA molecules.
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Why is heating and cooling necessary when doing the pcr method?
A PCR is used to amplify DNA. The heating breaks the hydrogen bonds and ensures that the double-stranded DNA helix is melted such that the two strand separate. The cooling ensures that the introduced DNA primers bind with the single strands so that elongation of the chain (to form a new double helix) can be possible by DNA polymerase.
when an ecosystem moves from primary to secondary succession of plant species, which most likely declines?
Final answer:
In secondary succession, early pioneer species such as grasses and mosses decline as intermediate species like shrubs and small trees take over and eventually move towards a mature climax community.
Explanation:
When an ecosystem moves from primary succession to secondary succession of plant species, the types of species that most likely decline are the early pioneer species such as grasses and mosses. Secondary succession occurs in an area where a disturbance has occurred, leaving the soil intact. This soil retains nutrients that allow for rapid recolonization by various plant species. Over time, as intermediate species like shrubs and small trees establish themselves, they change the microenvironment and outcompete the early pioneer species, leading to their decline.
The transition from the early fast-growing, sun-loving pioneer species to more shade-tolerant intermediate species results in a shift in the plant community structure. The pioneer species are adapted to conditions of full sunlight and disturbed soil; however, as the intermediate species grow taller and create more shade, conditions become less favorable for these sun-loving plants.
Consequently, there is a marked decline in these species as the ecosystem moves towards a climax community, characterized by a stable and mature community of plants and trees typical of the particular region and climate.
What are the two parts of the peripheral nervous system? A. the somatic and autonomic nervous systems B. the cerebrospinal fluid and meninges C. the cerebrum and cerebellum D. the brain and spinal cord
Answer:
A. the somatic and autonomic nervous systems
Explanation:
The two parts of the peripheral nervous system are the somatic and autonomic nervous systems
Answer:
Somatic and autonomic nervous systems.
Explanation:
The peripheral nervous system includes all the parts other than the central nervous system. The main functions of this system is to connect the central nervous system with the other system of the body.
The peripheral nervous system has been divided into the the autonomic nervous system and somatic nervous system . Autonomic nervous system control the involuntary actions of the body further divided into two more systems that helps in the fight and flight mechanism of the body. Somatic nervous system controls the voluntary action of the body.
Thus, the correct answer is option (A).
Gene splicing is used to produce
Answer:
Often used to produce the product Insulin
Explanation:
Punnett squares depict the genotypes of two parents and are used to predict the inherited traits of offspring. Which of the following would be the missing predicted trait in the table below?
The correct answer would be OO.
I Hope this helps!
Answer:
OO
Explanation:
Each square represents a segregated outcome. The missing square is a cross between O and O and could only produce OO, which would be known as simply O.
A population of squirrels lives in a mature forest in Virginia's Great Dismal Swamp. After a hurricane, 90% of the oak trees are destroyed by the rains and high winds. Which graph best illustrates the impact the loss of oaks on the squirrel population?
A) Graph A
B) Graph B
C) Graph C
D) Graph D
ANSWER IS B) GRAPH B
Answer: Option B Graph B
Explanation:
The population of squirrels live in the mature forests situated in Virginia's Great Dismal Swamp.
Due to high winds and rains more than 90 per cent of the trees were destroyed due to this weather condition.
The population of squirrel was decreasing as there was decline in trees. Graph B represents the decline in population of squirrel .
60 POINTS AND BRAINLIEST IF ANSWERED WITH EXPLANATION
_____ produce and secrete antibodies.
macrophages
phagocytes
B lymphocytes
T lymphocytes
Answer:
B lymphocytes
Explanation:
Soooo B lymphocytes, are a type of white blood cell of the lymphocyte subtype. They function in the humoral immunity component of the adaptive immune system by secreting antibodies.
Answer:
B lymphocytes
Explanation:
The graph here shows the carrying capacity for two populations of salmon living in different ecosystems. Which of these is most likely to be more plentiful in area B than in area A?
Answer: Disease
Explanation:
The graph here shows the carrying capacity for two populations of salmon living in different ecosystems:Area A has more food resources than area B.Hence the answer is option D.
What is salmon?Salmon is the common name for several species of ray-finned fish in the family Salmonidae. Other fish in the same family include trout, char, grayling, and whitefish. Salmon are native to tributaries of the North Atlantic and Pacific Ocean.The graph here shows the carrying capacity for two populations of salmon living in different ecosystems:Area A has more food resources than area B.Hence the answer is option D.
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idl this plzz help EASY!!!
Using the Doppler effect, astronomers can determine a star’s ____.
temperature
chemical composition
movement toward or away from Earth
age
Answer:
The answer is movement toward or away from Earth.
In astronomy, it is said that the Doppler effect tells Astronomers whether a star, or galaxy, is approaching or going away from us. It turns out the farther a galaxy is away, the faster it gets away from us - meaning that the Universe is expanding.
hope this helps :)
The answer is a movement toward and away from earth
Hope this helps .please add brainlist
which discovery did Gregor Mendel make?
Answer:
Traits are inherited independently of each other.
Explanation:
In the last ice age, most of Alaska was _____.
part of the Mammoth steppe
moving toward Europe
underwater
covered by ice
i believe the answer would be covered by ice.
During the last ice age, most of Alaska was covered by ice due to large ice sheets. Human migration from Siberia to Alaska was facilitated by lower water levels. Option d is correct.
During this time, large ice sheets covered parts of North America, including Alaska, due to the Earth being in the most recent ice age.Humans were able to migrate from Siberia to Alaska by crossing over the land bridge between the continents that had been revealed by dropping sea levels as massive glaciers formed all over the world.This migration occurred as a result of lower water levels during the Ice Age, allowing for the connection between Asia and North America through the Bering Strait, forming the basis for human settlement in Alaska.Complete question as follows:
In the last ice age, most of Alaska was _____.
a. part of the Mammoth steppe
b. moving toward Europe
c. underwater
d. covered by ice
Help ASAP plzzzzzzzzzz
Answer: all of the above
Explanation:
All of them are non-renewable sources, so all of the above !
what is the process of photosynthesis???
Answer:
The process of photosynthesis is when plants take in co2, sunlight and water which it needs to live. and it gives out oxygen and its food glucose
Explanation:
Answer:
Photosynthesis is the process with which plants transform sunlight into nutrients. It takes place within the thylakoids membrane and stroma of the plant’s chloroplast.
Photosynthesis can be broken down into 2 reactions:
1.) Light-dependant reaction- reaction that requires sunlight and occurs in the thylakoids of the chloroplast.
Reactants: H2O (water), sunlight, NADP+, ADP, and +Pi —> Products: O2, ATP (energy), and NADPH.
2.) Light-independent reaction (aka Calvin Cycle)- reaction that occurs in the stroma of the chloroplast and does not require sunlight because ATP (energy) was formed in the previous reaction.
Reactants: CO2, ATP (energy), and NADPH —> Products: CH2O, NADP+, ADP, +Pi
SO the main reactants of photosynthesis are Light, H2O (water), and CO2 —> the main products of photosynthesis are O2 and CH2O
what is an organelle?
Answer:
A small structure within the cell that serves speciallzed functions.
Hope this helps
:D
Answer:
A. A small structure within the cell that serves specialized funtions.
Explanation:
Simple diffusion is an example of what kind of cellular transport?
It is called passive transport not active transport
What is the direct source of the energy used to attach a phosphate group to adenosine disphosphate?
Answer:
Phosphorylation.
Explanation:
It's a chemical energy to be transferred in living cells. During cellular respiration, the energy released by the gradual breakdown of food molecules is used to attach a third phosphate to ADP to this changes the ATP molecule to molecule of ATP.
Which of the following body parts has involuntary muscles?
A.Arm
B.Face
C.Intestine
D.Leg
Answer:
intestine has involuntary muscles
Answer:
intestine
Explanation:
What tells a ribosome how to assemble a protein?
O A. DNA
O B. Pheromones
O C. Golgi apparatus
O D. Vesicles
Answer:
DNA
Explanation:
A. DNA a ribosome how to assemble a protein
Ribosomes get their orders for protein synthesis from the nucleus, where portions of DNA (genes) are transcribed to make messenger RNAs (mRNAs).
An mRNA travels to the ribosome, which uses the information it contains to build a protein with a specific amino acid sequence.
What is the structure responsible for assembling a protein?Endoplasmic reticulum is a network of membranes inside a cell through which proteins and other molecules move. Proteins are assembled at organelles called ribosomes.
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Which statement accurately describe soil?
Soil condition directly affects crop growth.
Soil is used faster than it is replaced.
The destruction of soil can take just minutes.
Soil cannot be replaced in a short time.
Answer: All.
Explanation:
In recent years the golf course has been relocated, and efforts have been made to clean up the effects of runoff to return Lake Ray
to its original conditions. This was done so that the walleye's numbers might increase
This sort of effort is known as
A.
habitat restoration
B. reforestation
• C. repopulation
D.
spear fishing
Answer: The answer is habitat restoration
Explanation: Trust me
This sort of effort is known as habitat restoration.
What do you mean by Habitat?Habitat may be defined as a type of natural environment for which a particular species is best adapted due to natural selection.
Habitat restoration is a process through which the number of any population may increase as a result of various efforts made by humans.
Reforestation is the growth of new trees in the bare area, repopulation is something that increases the numerical size of organisms of a particular species.
Therefore, the correct option for this question is A i.e. habitat restoration.
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Which molecules are used to produce glucose during the calvin cycle?
A. ADP and NADP+
B. ATP and NADPH
C. Chlorophyll and Oxygen
D. Carbon Dioxide and Water
Answer:
B. ATP & NADPH
Explanation:
fruits and vegetables are full of energy. Energy in the form of glucose. The energy from sunlight is briefly held in NADPH and ATP, which is needed to drive the formation of sugars such as glucose.
As Melvin Calvin discovered, carbon fixation is the first step of a cycle. The Calvin cycle transfers energy in small, controlled steps. Each step pushes molecules uphill in terms of energy content. Recall that in the electron transport chain, excited electrons lose energy to NADPH and ATP. In the Calvin cycle, NADPH and ATP formed in the light reactions lose their stored chemical energy to build glucose.
The Calvin Cycle uses ATP and NADPH to produce glucose. These energy carrying molecules are created during the light reactions of photosynthesis.
Explanation:To produce glucose during the Calvin Cycle, the molecules ATP (Adenosine Triphosphate) and NADPH (Nicotinamide Adenine Dinucleotide Phosphate) are utilized. These two molecules are vital energy carriers and are produced during the light reactions of photosynthesis. The energy they carry is used to convert carbon dioxide which is absorbed by the plant into glucose (a type of sugar). For example, substances like Glyceraldehyde-3-phosphate (GA3P) are produced as part of the Calvin Cycle. GA3P is effectively half a glucose molecule and through two cycles of the Calvin Cycle one molecule of glucose is generated utilizing the energy from ATP and NADPH.
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1)Clouds return the water in the cycle when it?
A)rains
B)condenses
2)evaporated water forms into?
A)mist
B)clouds
3)the first step of the water cycle is that water ____into the air
A)condenses
B)evaporates
Pls ❤️
The answers to the questions are as follows:
1) Clouds return the water in the cycle when it A) rains.
2) Evaporated water forms into B) clouds.
3) The first step of the water cycle is that water B) evaporates into the air.
1) The water cycle involves several stages, one of which is the formation of clouds. Clouds are formed when water vapor in the air condenses into tiny droplets or ice crystals. This process typically occurs when air cools to its dew point, and the water vapor can no longer remain in a gaseous state. However, the question asks when clouds return the water in the cycle. This happens when the water droplets or ice crystals in the clouds become too heavy and fall to the ground as precipitation, which includes rain, snow, sleet, or hail. Therefore, the correct answer is A) rains.
2) When water evaporates from the Earth's surface, it turns from a liquid to a gas (water vapor). This water vapor rises into the atmosphere and cools, leading to condensation. The condensed water vapor forms tiny droplets that cluster together to form clouds. Therefore, the correct answer to the question about what evaporated water forms into is B) clouds.
3) The water cycle begins with the evaporation of water from the Earth's surface, which includes oceans, lakes, rivers, and even soil. The sun's energy causes water to change from a liquid to a gas, a process known as evaporation. This is the first step in the water cycle, where water B) evaporates into the air. Once in the atmosphere, water vapor can condense to form clouds, which eventually lead to precipitation, falling back to the Earth's surface to continue the cycle.
What statement about antibody is true?
A it is a carb molecule
B it is only found in the human body
C it is target specific
D it is formed by covalently linking 3 peptides together
Answer:
The correct answer option is C. They are target specific.
Explanation:
We are to determine whether which of the given statements is true about antibody.
Antibodies are a type of proteins which are present in the body to defend the foreign attacks that are in the form of antigens.
These proteins have a basic structure which consists of two pairs of polypeptide chains that are linked covalently via disulfide bonds.
Each antibody recognises one specific antigen and this feature is called as antibody specificity.
Which of the following graphs use symbols to communicate data?
bar graph
line graph
pictograph
pie chart
Answer is .Pictograph.
A pictograph uses Symbols/signs/pictures to represent/communicate/symbolise Data.
Hope it helps...
Regards;
Leukonov/Olegion.
Answer:
PICTOGRAPH
Explanation:
What kind of pollution was the most abundant in the US national parks? How did this pollution affect park wildlife and ecosystems?
Answer:
The most prominent kind of pollution during 1989 was air pollution, as several of the country's national parks were hiding behind the air pollution curtains. The pollution started to decline biodiversity as various species were vacating the polluted regions for the cleaner ones, as they were not able to thrive in such circumstances. Due to this some plants even died like Jeffrey pine trees in Sequoia. The biological diversity was at threat as scientists had observed that acid rain and ozone depletion were making the things even worse.
The most abundant pollution in US national parks has been air and water pollution due to industrialization, increased population, and urbanization. This pollution affects aquatic life and can lead to 'dead zones', the reduction of biodiversity, and habitat destruction. Air pollution contributes to the deterioration of air and soil quality, causing harm to both animal and plant life.
Explanation:The most abundant pollution in the US national parks has historically been a mix of air and water pollution. Industrialization, increased population, and urbanization have been the major sources of this pollution. In fact, in 1969, water pollution was so dire that the Cuyahoga River in Ohio actually caught fire.
These forms of pollution have significant impacts on park wildlife and ecosystems. Pollutants in the water can harm aquatic life, creating 'dead zones' unable to support life. As these pollutants travel up the food chain, they can harm predators that consume the affected organisms. Over time, the accumulation of water and air pollution can lead to habitat destruction and reductions in biodiversity.
In the case of air pollution, elements like lead and other harmful chemicals from the burning of fossil fuels can contaminate the air and soil, leading to the degrading health of both animals and plant life. The impacts of these forms of pollution are long-lasting and damage the natural beauty of these protected areas.
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