Answer:
Carbon, Hydrogen, Oxygen
Explanation:
it doesn't matter what type of sugar you're talking about, fructose, glucose, etc. all sugars are made from C, H, and O
While conducting experiments with E. coli, Meselson and Stahl established that during DNA replication, each of the two strands that compose the double helix were used as a template for the new strands of DNA. The scientists described the replication method as semi-conservative. Explain what this means in terms of DNA replication.
A) The two original DNA strands, the parental strands, woulde-be used as templates to synthesize new strands.
B) After base pairing, both copies of the new DNA molecules would be a mix of alternating segments of old and new DNA.
C) Base pairing would result in two double-stranded DNA molecules that would include one parental or old strand and one daughter or new strand.
D) The two newly-synthesized strands, the daughter strands, would basepair with each other; one to form one all-old strand and one all-new strand.
Answer:
the answer is not D its C
Explanation:
The graph below shows the population of mice in an ecosystem where the mice are not allowed to enter or leave.
Which best describes the population at point B?
A.The death rate is higher than the birthrate.
B.The birthrate is higher than the death rate
C.It has reached its carrying capacity
D.The population is decreasing
It’s birthrate is higher than its death rate
Natality, mortality, and growth in populations that exhibit a logistic growth model depend on the density. Option B.The birthrate is higher than the death rate
What is logistoc growth?
Populations exhibiting a logistic growth model depend on density.
Natality and mortality depend on the population size, meaning that there is no independence between population growth and population density.
When a population grows in a limited space, density rises gradually and eventually affects the multiplication rate. The population per capita growth rate decreases as population size increases. The population reaches a maximum point known as the carrying capacity, K.
The carrying capacity might be affected by different factors, known as limiting factors, which might be a result of the population density (for example, competition) or might be density-independent.
What is carrying capacity?Carrying capacity refers to the maximum point at which the environment can support a growing population.
K is a constant. It coincides with the population size when natality rate and mortality rate are equal to each other. This is the equilibrium point.
• If the population size, N, is inferior to K ⇒ the population still grows.
• When N approximates to K, the population's growth speed decreases.
• When N=K, the population reaches equilibrium,
• When N is superior to K (N>K), the population must decrease in size because there are not enough resources to maintain that size.
In the exposed example, option B best describes the population at point B. The birth rate is higher than the death rate. At this point the population is experiencing exponential increase in size.
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1. All the members of one species in an area
What’s that called ?
Answer:
Population
Explanation:
All the members of one species in a particular area are referred to as a population.
Answer:
population
Explanation:
Why is the disposal of nuclear waste a greater problem than the disposal of the trash that you and you family need to get rid of
Answer:
nuclear waste has radiation, which is harmful to humans, so nuclear waste has to be stored in special facilities. Nuclear waste takes a lot longer than regular waste to decompose too.
Explanation:
Give examples of the physical components of an ecosystems that can change populations.
Final answer:
Physical components of an ecosystem, such as catastrophic events, forest structures, and geological processes, can significantly alter populations and lead to processes like ecological succession. The study of acorn production illustrates how food resource availability can fluctuate population dynamics. Understanding how humans impact these ecosystems is critical for assessing biodiversity conservation.
Explanation:
The physical components of an ecosystem can significantly influence populations within it. Examples that can change populations include catastrophic events such as floods, fires, and volcanic eruptions. These events can lead to a long process called ecological succession, where the ecosystem gradually recovers and reestablishes itself through a succession of species.
Additionally, at both local and broader scales, biological communities can also alter the physical environment. For instance, forests affect wind speed, soil chemistry, and light penetration. A study on acorn production demonstrated how the populations of small mammals and ground-nesting birds fluctuate with the available food resources. Identifying various ecosystems such as forests, wetlands, and Garry oak meadows helps to understand the nuanced interactions of organisms and the environment, especially when discussing how humans impact ecosystems.
Chapter 4 will delve into how such environmental changes influence population dynamics, highlighting the continuous nature of evolution and species interaction shaped by these changes. From a broader perspective, geological processes such as continental drift and meteor impacts lead to the loss and creation of ecological niches, indicating the deep interconnection between physical changes and population shifts.
Which of the following factors is needed during light-dependent reactions to create ATP and NADPH energy molecules?
Answer:
Solar energy
Explanation:
Because although there are MANY factors that play into this process, the one that it cannot do without at all, whatsoever, is Solar Energy.
How do rivers erode Earth's surface?
A. Rivers experience extreme temperature changes, causing rocks to contract and crack.
B. Rivers do not cause any changes to surface rock or underwater rocks as they move over them.
C. Rivers remove plants from their bottoms and deposit them downstream, leaving rocks
unaffected.
D. Rivers break small pieces of rock from their sides and bottom and deposit them downstream.
A major problem with the use of electrical energy is that _____ A. It is not easily stored b. There are very few ways to create it c. It cannot be converted into other forms of energy d. If cannot be used to do work
Answer:
B
Explanation:
Which of the following is an example of conduction A a dog bowl of water warms up out in the sun B leftovers become warm when reheated in the microwave. C campers warm up while sitting by a campfire D a metal spoon becomes warm when placed in a cup of hot tea
Answer:
Which of the following is an example of conduction?
a metal spoon becomes warm when placed in a cup of hot tea
Explanation:
Answer: D, a metal spoon becomes warm when placed in a cup of hot tea.
Explanation: Conduction is the transfer of energy through matter from particle to particle. It is the transfer and distribution of heat energy from atom to atom within a substance. For example, a spoon in a cup of hot soup becomes warmer because the heat from the soup is conducted along the spoon.
In pea plants, red flowers and round pollen are known to be recessive traits. In a dihybrid cross experiment, lots of plants with red flowers and round pollen are found in the F2 generation. How is this possible?
The genes for flower color and pollen shape are found on different chromosomes.
Multiple genes control the traits for flower color and pollen shape.
The genes for flower color are linked to pea shape, but not pollen shape.
The genes for flower color and pollen shape are linked.
Answer:
The last one if there are multiple answers please tell me.
Explanation:
just when with the one i knew in heart
The reappearance of recessive traits (red flowers and round pollen) in the F2 generation of a dihybrid cross is explained by Mendel's Law of Independent Assortment, which states that genes on different chromosomes assort independently during gamete formation. When members of the F1 generation cross-pollinate, recombination of alleles can result in the re-expression of the recessive traits in the F2 generation.
Explanation:Your observation of red flowers and round pollen in the F2 generation of a dihybrid cross in pea plants is possible because these traits are on different chromosomes. If two genes are located on separate chromosomes, they will assort independently during gamete formation. In a dihybrid cross involving two traits, the different combinations of alleles may result in the re-expresssion of recessive traits in the F2 generation. This is known Mendel's Law of Independent Assortment.
To illustrate, consider that a parental generation plant with dominant alleles for both traits (i.e., purple flowers and elongated pollen) is crossed with a plant having recessive alleles (i.e., red flowers and round pollen). In this case, the F1 generation will all exhibit the dominant traits because dominance masks the effect of recessive alleles. However, when the F1 generation cross-pollinates, the F2 offspring can include plants with the recessive traits due to recombination of alleles.
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5 pieces of evidence that supports climate change
Answer:
1.Climate change is real and man-made, and there is overwhelming scientific consensus that this is true
2.All major climate change reports are thoroughly researched and based on the most accurate, up-to-date science
3.Climate change studies are transparent
4.Addressing climate change will strengthen the economy
5.Federal climate change reports are credible because they are written by scientists, not politicians
Explanation:
I just use these on a test and got it right
Which term best describes the community shown in the photograph?
Answer: large population for Ap!x
Which condition causes storms to occur?
A. freezing of water droplets
B. sudden change in air pressure
C. condensation of water vapor
D. rapid heating of upper atmosphere
B. A sudden change in air pressure is a key condition that causes storms to occur.
Why storm forms?Storms form when there is a significant difference in air pressure between two areas. This difference creates a pressure gradient, which causes air to move from high pressure to low pressure in an attempt to balance the pressure. When air moves, it rises, cools, and condenses into clouds.
If the difference in air pressure becomes large enough, the rising air can create strong winds and precipitation, resulting in a storm. So, a sudden change in air pressure is one of the essential conditions for the formation of storms.
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Identify the structures in the cell pictured on the
right
Label A
Label B
Label C
Label D
Answer:
A. Cell Membrane
B. Cytoplasm
C. Ribosomes
D. DNA
Explanation:
Hope This Helps
Answer:
A. Cell Membrane
B. Cytoplasm
C. Ribosomes
D. DNA
n:
What is the process of succession?
O
A. When a community is replaced by another community
O
B. When one disturbance replaces another disturbance
O
C. When a species changes from one niche to another niche
O
D. When an ecosystem changes from one biome to another biome
Answer : when a community’s replaced by another community
Answer:
Change in the species structure of an ecological community over time. (A)
Explanation: Google
AAnswer:A
Explanation:
why should/shouldn't Pluto be reclassified as a planet?
Answer:
(This could be opinion based, but ok.)
Explanation:
should:Pluto was known as a planet for 75 years. This means that most people already knew it as a planet, and would be extremely confused. All of the books about planets would be inaccurate and changed. Not all people can access brand new books, leading to inaccurate information.
shouldn't: The same reason that it was unclassified as a planet. It does not adhere to all of the rules of being a planet. It is not completely round and does not have a round orbit around the sun. Pluto does not have every requirement to be a real planet, and therefor, it would be incorrect to have it classified wrongly.
Why is it important to follow prescription instructions exactly?
Which of the following is NOT true of mechanical digestion? Muscular contraction in the stomach mix food The teeth and tongue break food into smaller pieces It starts in the mouth Enzymes break down food
Answer:
It starts in the mouth Enzymes break down food
Explanation:
Mechanical digestion is a type of digestion which is done by breaking of food materials into small pieces through physical means such as cutting and crushing by teeth and muscular contraction of stomach while the break down of food molecules by the action of enzyme such as saliva etc is chemical digestion. Chemical digestion helps in speeding up the process of digestion.
Answer:
D. Enzymes break down food.
Explanation:
Mechanical digestion is the physical breaking down of food that starts in the mouth by chewing. Enzymes would be part of the chemical digestion.
A raccoon consumes 500 calories of food. 50 of those
calories are converted to biomass. In other words:
The subject of this question is the conversion of calories to biomass in a raccoon's diet. This process is known as energy transfer or energy flow in an ecosystem.
Explanation:In biology, the subject of this question is the conversion of calories to biomass in a raccoon's diet. This process is known as energy transfer or energy flow in an ecosystem.
Calories are a unit of energy, and when a raccoon consumes food, it uses some of that energy for its own metabolic processes and converts the remaining energy into biomass, which is the living tissue of the raccoon's body.
In this case, if the raccoon consumes 500 calories and 50 calories are converted to biomass, the remaining 450 calories are used by the raccoon for its bodily functions.
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According to the question, out of the 500 calories consumed by the raccoon, only 50 are converted into biomass. In simpler terms, for every 500 calories of food it eats, the raccoon uses 50 calories to build up its body mass.
When the raccoon consumes 500 calories of food, it undergoes various metabolic processes to utilize this energy. Out of these 500 calories, only 50 calories are converted into biomass. This conversion involves synthesizing new molecules and tissues, such as muscle, fat, and organs, contributing to the raccoon's growth and maintenance.Metabolic rate is the amount of energy expended by an animal over a specific time. In the case of the raccoon, only a small portion of the consumed calories is converted into biomass. The remaining 450 calories are likely expended as energy to power the raccoon's daily activities, including locomotion, thermoregulation, and cellular functions like respiration and digestion. These calories are transformed into kinetic energy, heat, and other forms of metabolic energy to sustain the raccoon's life processes10. The
system Includes the brain.
endocrine
nervous
circulatory
Answer:
nervous
Explanation:
The human brain is the central organ of the human nervous system, and with the spinal cord makes up the central nervous system.
Answer:
B. nervous
Explanation:
8. Which of the following is a requirement for exponential growth of a
population?
O A. There's competition from other organisms.
O B. There's a finite number of resources.
O C. There are no limiting factors.
O D. The population is in a climax community.
Answer:
C. There are no limiting factors.
Explanation:
What type of molecule was likely broken down during this treatment that caused the cell organelles
to be dispersed?
A. Cellulose
B. Phospholipid bilayer
C. Actin filaments
D. Nuclear pores
E. Starch
Answer: B Phospholipid bilayer
Explanation:
If the lipid bilayer is broken, the internal organelles and the cytoplasm of the cell are dispersed, since this layer makes up the cell membrane, cellulose is part of the structure of the wall of plant cells, so the response A does not is correct, answer C is false because actin filaments participate in the contraction of muscle fiber and not membrane, answer D is incorrect because nuclear pores have as a function the passage of substances to the nucleus and the response E is incorrect because the starch is a carbohydrate, which has plants in reserve to be consumed.
1. What happens to organisms that have adaptations that longer work for their environment?
Answer:
There's two possibilities, either nothing happens, or they are slowly eliminated from the population.
Explanation:
Some adaptations are no longer useful, like wisdom teeth for us humans or hip bones in whales. Whales definitely don't need hip bones, but having them also doesn't really hurt their chances of survival. In these cases it doesn't matter, so the individuals remain in the population.
If the organism's chance of survival is decreased due to its adaptation no longer working, then it will be eliminated from the population through natural selection. For example, if an individual's camouflage stops working, they will be less likely to survive and reproduce.
Black bears eat both plants and small animals in their ecosystem. Which of
the following terms best describes a black bear?
A. Producer
OB. Herbivore
O
C. Omnivore
D. Carnivore
Answer:
The answer is C. Omnivore
Explanation:
An omnivore is an animal that eats both plants and animals
FIRST PERSON CORRECT WILL BE MARKED BRAINLIEST
Which of the following is not a reason the human population is growing exponentially?
A. modern medicines prevent many childhood diseases
B. advancements in technology mean people can move if they deplete resources in an area.
C. food production has increased as a result of advancements in science and technology
D. infectious diseases can spread in crowded areas
Answer:
D
Explanation:
D is a reason population would fall
Answer:
Option (d). Infectious diseases can spread in crowded areas is not a reason the human population is growing exponentially.
What are the causes for human population?
Good healthcareIncrease in birthrateFood securityLack of educationCultural influenceLack of future planningWhy other options are incorrect?
The other options are incorrect because they are the reason behind human population rather than option (d) which is not the reason.Thus, option (d) is correct answer.
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what is a photosynthesis
Answer:
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Answer:
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
a student builds an model of her bedroom. the scale is 1:25 in the scale model, the students bed is 3 inches long how long is her actual bed ?
The size of actual bed is 75 inches
Explanation:
Scale refers to the ratio of the original dimension to the dimension on paper (miniaturised dimension). Since it is a ratio, it has no dimension.
Scale= original dimension/miniaturised dimension
Given that scale is 1:25
It means that every 1 inch on paper would correspond to 25 inches in reality.
The length of the model bed= 3 inches
Hence, the length of the original bed is 25*3 = 75 inches
∴ Length of the actual bed of the student is 75 inches.
By definition of scale, the length of the actual bed of the student is 75 inches.
In first place, you have to know that the scale is the relationship that exists between the magnitudes of a drawing and the actual dimensions.
That is, the scale is defined by two numbers that determine the relationship between the drawing and reality.
The first number of the proportion or relationship refers to the drawing on paper, while the second number of the proportion refers to the reality of the object (actual dimensions). This is, Scale = Drawing: Reality or [tex]scale=\frac{drawing}{scale}[/tex]
The scales can be:
Reduction scale: used when the size of the object is larger than the size of the sheet of paper. Magnification scale: used to represent small objects. Natural scale: it is used to represent objects with a drawing the same size as reality.In this case, you know that:
Scale= 1:25Drawing= 3 inchesReality= ?Replacing in the definition of scale:
1:25= 3 inches: reality
or
[tex]\frac{1}{25} =\frac{3 inches}{reality}[/tex]
Solving:
reality= 3 inches× 25
reality= 75 inches
In summary, the length of the actual bed of the student is 75 inches.
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What does the Earth's atmosphere do?
Create meteors
Regulate temperatures
Control population
Provide light
Answer: the answer is b
Explanation: The atmosphere, a thin shell of gases surrounding the Earth, is a very effective protective shield that reflects and absorbs harmful radiation and objects like meteorites.
Answer:
B it regulates temperature.
Explanation:
The atmosphere is an important part of what makes Earth livable. It blocks some of the Sun's dangerous rays from reaching Earth. It traps heat, making Earth a comfortable temperature. And the oxygen within our atmosphere is essential for life.
HELP SCIENCE!!! I will give brainliest! for the best answer
Explain the relationship between producers, consumers, and decomposers in the process of energy transfer in a food web
Answer: A producer is like grass, then consumers like a zebra will eat the grass, and wen the zebra dies its body breaks down and helps more grass grow. That cycle keeps going over and over, it never ends.
Explanation: producer: organisms that make their own food
consumers: organisms that will eat the producers to gain energy
decomposer: organisms that decomposes organic matter such as fungi
In flies, long wings are a dominant trait, and short wings are a recessive trait. Medium wings are the heterozygous trait. Based on this information, if a homozygous long-winged fly is crossed with another a heterozygous fly, their offspring will have which percentages for long, medium, and short wings? Assume random chromosome segregation.
Answer:
there is a 100% chance it will contain the recessive allele and a 50% chance it will have the recessive trait
I tried to attach a document I made of a punnet square to help further explain
Explanation: