The diagram below represents changes in the types of plants growing in the same area during four different time periods. Different types of plants have been labeled for each time period. This change in plant types over time is an example of
Answers
Answer:
A. Ecological Succession
Related Questions
How long does it take for antibiotics to start working?.
Answers
Answer:
Antibiotics begin to work right after you start taking them.
Explanation:
Antibiotics work by blocking vital processes in bacteria, killing the bacteria, or stopping them from multiplying. This helps the body's natural immune system to fight bacterial infection. However, you might not feel better for 2 to 3 days after using the antibiotics.
Which of the following planets has the largest orbital radius compared to the others?
Group of answer choices
Jupiter
Mercury
Saturn
Venus
Answers
Answer:Jupiter
Explanation:
is the largest of all the planets. It has a radius of 71,492 kilometers at the equator and a radius of 66,854 kilometers at the poles
As the pond gets older, the number of plants increases. When they die,
they fall to the bottom of the pond, rot, and become mud. After a very
long time, what do you think will happen to the pond?
A.There will be more water
B.There will be less water
C.There amount of water will stay the same
Answers
Obviously C
The water would stay the same the rotten plants would sink and eventually disappear, the water will not increase or decrease
A student mixes various molecules needed for DNA replication. When he adds DNA, replication occurs, but each DNA duplex consists of a normal DNA strand paired with numerous segments of DNA that are a few hundred nucleotides long. What has been left out of the mixture
Answers
Answer: DNA Ligase
Explanation:
During DNA replication, both the parental DNA strands are separated and act as templates for the synthesis of new strands. The formation of the new strands occurs in only 5'-3' direction and thus both the strands are synthesized in a different manner. One new strand with the template of 3'-5' direction will be synthesized continuously and is called a leading strand. The other strand with the template of 5'-3' direction will be synthesized discontinuously in the form of DNA fragments. These fragments are called Okazaki fragments and the strand is called a lagging strand. DNA ligase connects these fragments later to form a continuous lagging strand.
Therefore, DNA ligase is required for ligation of Okazaki fragments, and in absence of DNA ligase, the ligation of fragments will not occur and the newly synthesized strand will be discontinuous. However, if DNA ligase is not present in the reaction mixture, then the chances are that not all the newly synthesized DNA strands will be discontinuous. Only the DNA molecule with the lagging strand will be in the form of fragments.
How is selective breeding related to DNA
Answers
Answer:
the animals that are selected for breeding will mix their DNAs while making the baby, so the baby will carry the characteristics of both parents (it depends on if the trait is dominant or recessive
Explanation:
However, genetic engineering involves a direct change to an organism's genome in a laboratory.
Gene variants made through genetic engineering can be passed from one generation to the next.
Drag each characteristic to the correct category.
viruses do not possess all the characteristics of life. identify those characteristics that viruses display and those they don't display.
made up of one or more cells
has a defined boundary
uses energy
exhibits growth and development
possesses internal organization
eliminates waste
characteristics of life
present in viruses
characteristics of life absent
in viruses
Answers
Viruses are organisms that share traits with both living and non-living organisms. The virus' genetic material is made up of both DNA and RNA.
What are the characteristics of virus?Viruses have an exterior capsule layer and a specified boundary. Only the host cells provide energy to the virus. They thrive and mature, multiplying their numbers solely within the host cells.
Characteristics which virus do not display:A virus is a single-celled with no more than one cell. In the virus, there is no internal organization. If a virus is present outside of the host environment, it does not grow, develop, or require energy. Viruses do not remove trash.
For more information regarding virus, visit:
https://brainly.com/question/13252358
#SPJ1
Which of the following is a scientific observation about the bird pictured
below?
Scarlet ibis
A. The pink feathers are especially beautiful.
B.The long beak helps the bird eat insects.
C.The scarlet ibis is the national bird of Trinidad.
D. The bird's features are red.
Answers
Answer:
B. the long beak helps the bird eat insects.
(Here's the table used for context)
Family / parent phenotype cross / phenotype ratio in offspring
1 / gray fur x black fur / 3 gray fur: 2 black fur
2 / gray fur x black fur / 0 gray fur: 5 black fur
3 / black fur x black fur / 1 gray fur: 3 black fur
4 / gray fur x gray fur / 4 gray fur: 0 black fur
Using the allele symbols N and n identify the most likely genotype of the parent wolves in family 1 and the most likely genotypes of the parent wolves in family 2. Be sure to identify which genotype is for the parent with gray fur and which genotype is for the parent with black fur in each family.
ok so, I'm having trouble understanding. i believe that the inheritance pattern could be dominant-recessive, but now I'm not too sure. families 1 and 2 have 5 offspring (which doesn't accommodate a dominant-recessive punnett square as that only accounts for 4 offspring). so i tried thinking of it in percentages instead but (in family 1 for example) 2/5 is 40% and 3/5 is 60% so that doesn't work with the dominant-recessive punnett square where each trait is 25%. so either I'm wrong about the inheritance pattern or I'm just full on . someone please help, i don't think I've ever been this confused in bio.
Answers
In complete dominance, heter0zyg0us individuals carry both alleles -dominant and recessive- but only express the dominant phentoype. Cross 1: Nn x nn. Cross 2: NN x nn
What is complete dominance?When the dominant allele completely masks the recessive allele, we talk about complete dominance.
This is the case of individuals that are heter0zyg0us for a particular gene and express the dominant trait. The dominant allele is hiding the expression of the recessive allele.
What is a punnett square?The Punnett square is a representation that shows the different types of gamete combinations according to the alleles involved in a cross.
Punnett square shows the probabilities of getting offspring with different genotypes and their consequent phenotypes.
So, according to the provided data,
Cross 1: gray fur x black fur
F1) 3 gray fur: 2 black fur
Cross 2: gray fur x black furF1) 0 gray fur: 5 black fur
By looking at the phenotype of progeny produced by family 2, and assuming complete dominance, we can infere that black is the dominant phenotype. Why is that? because when you crossed a gray animal with a black animal and the whole progeny is black.
So, assuming a diallelic gene coding for the fur color, we will name
N to the dominant allele that codes for blackn to the recessive allele that codes for gray.Possible genotypes and phenotypes
NN ⇒ Black fur ⇒ dominant phentoypeNn ⇒ Black fur ⇒ dominant phentoypenn ⇒ Grey fur ⇒ recessive phentoypeHere what you need to analyze is which phentoypes appear among the progeny and their frequencies to get to interprete the parents' genotype.
If both parents are h0m0zyg0us dominant (NN x NN), the whole progeny expresses the dominant trait (100% NN)If one parent is h0m0zyg0us dominant and the other one heter0zyg0us (NN x Nn), the whole progeny expresses the dominant trait (50%NN and 50%Nn).If one parent is h0m0zyg0us dominant and the other one h0m0zyg0us recessive (NN x nn), the whole progeny expresses the dominant trait (100% Nn).If both parents are heter0zyg0us (Nn x Nn), the offspring will express both phenotypes in a ratio 3:1 (25% NN + 50% Nn and 25% nn).If one parent is h0m0zyg0us recessive and the other one heter0zyg0us (nn x Nn), the offspring will express both phenotypes in a ratio 1:1 (50% Nn and 50% nn).If both parents are h0m0zyg0us recessive (nn x nn), the whole progeny will express the recessive trait (100% nn).Now let us analyze the crosses,
Cross 1: gray fur x black furF1) 3 gray fur: 2 black fur
You crossed a black animal with a gray animal and the offspring expresses both phenotypes. So the black animal (dominant phenotype) must be heter0zyg0us for coat color.
Parents' phenotype) gray and black
Parentals) nn x Nn
Alleles in Gametes) n n N n
Punnett square) N n
n Nn nn
n Nn nn
F1) Genotype
1/2 = 50% of the progeny is expected to be heter0zyg0us, Nn
1/2 = 50% of the progeny is expected to be h0m0zyg0us recessive nn
Phenotype
1/2 = 50% of the progeny is expected to be black -Nn-
1/2 = 50% of the progeny is expected to be gray -nn-
Cross 2: gray fur x black furF1) 0 gray fur: 5 black fur
You crossed a black animal with a gray animal and the offspring expresses only the dominant phenotypes. So the black animal must be h0m0zyg0us dominant for coat color.
Parents' phenotype) gray and black
Parentals) nn x NN
Alleles in Gametes) n n N N
Punnett square) N N
n Nn Nn
n Nn Nn
F1) Genotype
100% of the progeny is expected to be heter0zyg0us, Nn
Phenotype
100% of the progeny is expected to be black -Nn-
Remember that the Punnett square does not give you information about the number of individuals that can be produced. It just provide information about probabilities of getting individuals with certain genotype of phenotype and their frequencies.
You can learn more about complete dominance and punnett square at
https://brainly.com/question/1953851
https://brainly.com/question/25357981
#SPJ1
Identify the viral structure described.
have a capsid that has polyhedral and helical characteristics, and may have extra structures like protein tails. Bacteriophages are examples.
have an outer lipid bilayer known as a viral envelope, which is studded with proteins. Influenza and HIV are examples.
have many triangular faces. Most have 20 triangular faces and 12 corners. Polio and the papilloma virus are examples.
have long narrow capsids shaped liked cylinders. Rabies and ebola are examples.
Answers
1. Complex viruses
2. Enveloped viruses
3. Polyhedral viruses
4. Helical viruses
What is virus structure?Viruses are infectious particles comprising of two components:
An outer structural component called the Capsid.
The inner genetic material made of single stranded or double stranded RNA (Ribonucleic Acid) or DNA (Deoxyribonucelic Acid).
The Capsid structure is made up of glycoproteins.
These glycoproteins are encoded by genes present in the viral genome.
The viruses are incapable of reproducing on its own.
They infect the host cells and hijack their metabolic machinery which includes the protein-synthesizing machinery and also utilize the raw materials of the host cells to produce the progeny virions which are then released out the host cells.
The capsid structure is responsible for packaging the viral genome and protecting it from various degrading agents present in the external environment like nucleases.
Thus, this could be the answer.
To learn more about virus click here:
https://brainly.com/question/15089969
#SPJ1
Select the correct answer from each drop-down menu.
which domains of sustainability are referenced here?
domain
the
domain incorporates cultural norms that directly impact sustainable development. the
focuses on the protection and preservation of natural and artificial resources.
Answers
The domain incorporates cultural norms that directly impact sustainable development. hence, option B is correct.
What do you mean by economic domain?The economic sphere is a social one that includes connected human behaviors and exchanges and does not exist in a vacuum. Individuals, companies, organizations, and governments can all act as economic agents.
Cultural norms are incorporated into the economic sector and have a direct effect on sustainable development. The conservation and preservation of both natural and man-made resources are the major objectives of the environmental domain.
Learn more about the economic domain here:
https://brainly.com/question/14519448
#SPJ1
A bird species known as the cattle egret is often found near farms in wet areas. The bird waits, sometimes even perched on a cow's back, until the cow kicks up a frog or fish while it walks. Then, the bird strikes and eats the exposed prey. This is an example of what kind of feeding relationship
Answers
The interaction between a cattle egret and a cow is an example of Mutualism.
What is the Feeding relationship?The feeding relationship may be defined as a classification of species interaction through which the organism of one species feeds on the other via interacting with it.
Mutualism is a type of +,+ relationship in which the species of a cattle egret benefitted due to the consumption of prey that is present on the cow's back, on the other hand, the cow also gets benefits by cleaning the body (back) by cattle egret.
Therefore, it is well described above.
To learn more about Feeding relationship, refer to the link:
https://brainly.com/question/9852437
#SPJ2
A scientist wants to test if soaking berries in hot water will prevent them from getting moldy. What is the independent variable? What is the dependent variable?
WILL GIVE BRAINLIEST
Answers
Hot water is independent variable whereas berries are dependent variable.
What is the independent variable and dependent variable?The independent variable is hot water whereas the dependent variable is berries because berries shape depends on the hot water but the hot water can't be affected by the berries.
So we can conclude that hot water is independent variable whereas berries are dependent variable.
Learn more about variable here: https://brainly.com/question/25223322
#SPJ1
Is a law a theory or is a theory a proposed law
Answers
Answer:
Theory is a proposed law.
Explanation:
A proposed law is a law that has not yet been approved; a speculation made by an individual that has not yet been proven as a real thing. For example, I say that ice cream is now free for all, and that would be a completely proposed law since no one has approved that but me.
Answer:
Neither
Explanation:
A law is something in science that can be proved through experimenting. A law does not attempt to explain why something is the way it is, it only states it.A theory is an idea that has a large amount of scientific data backing it and is the accepted answer by most scientists, but there is no way to experiment on a scientific theory. A theory will never be able to become a law. A theory explains what it is describing.An example of a law is the law of conservation of energy, which has to do with how energy is used. Scientific experiments can be done to observe energy.
An example of a scientific theory is the theory of natural selection. Based off of data and observation, the theory of natural selection has been formulated, and the theory of natural selection explains why.
Most bacterial infections are treated with antibiotics that is commonly available at public hospitals.
TRUE OR FALSE?
PLEASE STATE WHETHER THE STATEMENT ABOVE IS TRUE OR NOT, TY.
Answers
Answer:
The statement is true
(a hundred points what more do u want bro)
Puppies increase in size as their cells grow and divide. Almost all cells complete a full cell cycle that includes interphase and cell division. In interphase, cells serve their specialized functions, grow, and copy their genetic material. Mitosis is the first stage of cell division, in which the copied chromosomes are separated into two new nuclei. Then in cytokinesis the cell divides into two daughter cells. If no mutations or errors occur, the genetic material in each daughter cell is identical to what was in the original cell.
Now that you have completed this lesson, you should be able to:
describe the stages of the cell cycle
use a model to illustrate the role of cellular division in the formation of new cells
describe the structure of a chromosome
follow chromosomes through the processes of mitosis and cytokinesis
If you do not feel comfortable with these topics, go back and review the lesson before attempting your assignment.
Now it is time to complete the assessment for this lesson. Contact your instructor if you have questions or need additional help.
Answers
Answer:
Ummmm... Indeed?..
Explanation:
Models are important in science. Some models are verbal models, which are full elaborate descriptions that can help someone visualize the concept. You have seen various visuals of Earths layers. Create a verbal model of
Earth
s interior. In your model, describe the following:
1. The main layers of Earths interior and the indirect evidence that helped us determine the layers.
2. The flow of matter in the mantle and in the core and the effects of that flow.
3. The source of thermal energy and how energy flows throughout the layers. (Hint: think of the cause of the convection currents)
Answers
The main layers of Earths interior are the inner core, the outer core, the mantle and the crust.
What is the indirect evidence that helped us determine the layers?Use of seismic waves is the indirect evidence that helped us determine the layers. When earthquakes occur they produce seismic waves.
The flow of matter occurs by convection. The dense crust subducts back into the mantle exert forces on crustal plates that then move, producing tectonic activity.
So we can conclude that The main layers of Earths interior are the inner core, the outer core, the mantle and the crust.
Learn more about earthquake here: https://brainly.com/question/248561
#SPJ1
How do plants photosynthesize in winter? When they shed their leaves.
Answers
[tex]\Huge\green{\tt{✏Answer:}}[/tex]
Most trees do 'slow down' during winter, and deciduous trees that lose their leaves shut down photosynthesis entirely. Trees with needles (evergreen trees) that are retained over winter can actually photosynthesize during the winter.#Let's Study
Select the correct answer. alternators are installed on automobiles to power things like the lights and the radio. which kind of device is an alternator? a. generator b. motor c. battery d. wind turbine e. electric fan
Answers
The kind of device in which an alternator can be categorized is a generator of electric energy.
What is an alternator?An alternator is a tool/device in a car that converts mechanical energy into electrical energy.
The electrical energy generated by using an alternator is alternate electrical energy.
In conclusion, the kind of device in which an alternator can be categorized is a generator of electric energy.
Learn more about alternators here:
https://brainly.com/question/15904955
#SPJ1
Answer: Generator
Explanation:
I'll mark brainlist!!!!
assuming that the human population on earth will peak sometime in the twenty-first century, the twenty-second century will witness a declining world population. discuss how you imagine life in the twenty-second century will be in terms of the use of nonrenewable and renewable resources, economic and social development, and quality of life.
Answers
Because nonrenewable resources are diminishing in number, they will eventually become scarce, posing a variety of life dangers in the future.
What are Non-renewable resources?Nonrenewable resources are defined as substances that are depleted faster than they can be replaced.
Renewable resources are abundant, and capturing them is a sign of new life on the horizon. It is necessary to decrease your reliance on nonrenewable resources. As we saw during the corona pandemic, most countries' economies are progressively deteriorating. It also has an impact on one's quality of life. As a result, it must be stated that the world population will decline in the twenty-second century.
For more information regarding Non-renewable resources, visit:
https://brainly.com/question/14432353
#SPJ1
Which of these is a process during which the hydrosphere interacts with the exosphere? (4 points)
Absorption of rainwater by soil
Absorption of heat in lakes and oceans
Condensation of water vapor into water
Solidification of water into ice
Answers
The process during which hydrosphere interacts with the exosphere is during the condensation of water vapor into water.
Hydrosphere and Exospherehydrosphere is the total amount of water on a planet. The hydrosphere includes water that is on the surface of the planet, underground, and in the air while exosphere is the outermost layer of Earth's atmosphere which is the upper limit of the atmosphere and extends from the exobase, which is located at the top of the thermosphere.
Read more on Hydrosphere and Exosphere:
https://brainly.com/question/12857292
#SPJ1
In the harmful dysfunction definition of psychological disorders, dysfunction involves ________.
Answers
Answer:
the inability of an psychological mechanism to perform its function
Explanation:
Does the volume increase with trial number, decrease with trial number, or stay about
the same? Explain why you think the results are the way there are. There are many
possible reasons for the data trend you see. Give some that you think are reasonable
Answers
Answer:
Hi. You have not informed the experiment that this question relates to, making it difficult to respond to your query. However, I looked up your query on the internet and found one similar to yours that included an experiment that measured the volume of balloons inflated by people's breath.
The volume of the balloons remains constant throughout the number of tests, according to the results of the experiment. This is due to the fact that when we blow, our lungs prefer to express the same amount of air as when we breathe in regular settings. This is most likely due to the fact that all of the balloons were filled with air when the participants were in the same physical and mental condition, i.e., calm and still, causing the volume of air they breathed and emitted to remain constant. If the individuals in the experiment were exerting some physical effort or were stressed and concerned, the amount of air would be different.
A closed ecosystem made by humans is called…
Answers
Answer: A closed ecological system for an entire planet is called an ecosphere.
Explanation: A closed ecological system for an entire planet is called an ecosphere. Man-made closed ecological systems which were created to sustain human life include Biosphere 2, MELiSSA, and the BIOS-1, BIOS-2, and BIOS-3 projects.
Answer:
An Ecosphere- according to the internet
Please please answer my question if you see it please
Answers
Part C
What was the total amount spent on Veterans’ Benefits?
Answers
The total amount that was spent on Veterans’ Benefits is 233.78 billion U.S. dollars.
What was the total amount spent on Veterans’ Benefits?According to the Veterans Benefits Administration, Spending for the disability program is increased about quadrupled from $22 billion in 2000 to $85 billion in 2019. The total spending on Veterans’ Benefits is 233.78 billion U.S. dollars.
So we can conclude that The total amount that was spent on Veterans’ Benefits is 233.78 billion U.S. dollars.
Learn more about Veterans here: https://brainly.com/question/16622195
#SPJ1
Answer:
$160.63 billion
Explanation:
plato/edmentum
[BWS.02]An idea is considered scientific after it has been
O tested
O published
O proposed
O popularized
Answers
Learning Task No. 3: Performance Task Sanitizer/Disinfectant 1. Chlorine 2. lodine 3. Vinegar Advantages 4TH QUARTER LEAP Disadvantages
Answers
Answer:
iodine
Explanation:
it has the maximum potential for the Chemical to leak down.
27. Why does cutting through the bark of a tree often kill the tree?
Answers
Cutting through the bark of a tree would most often kill it because food supplies to certain parts of the tree are cut off.
What does the bark of trees contain?The bark of a tree is made up of two types of tissues:
Dead tissues on the outsideSecondary phloemThe secondary phloem is responsible for conducting synthesized foods from source to sinks.
When the bark of a tree is cut through, the secondary phloem is cut along and food supply to certain parts of the tree is cut off as a result. This often results in the death of the tree.
More on the bark of trees can be found here: https://brainly.com/question/505144
#SPJ1
PLEASE I WILL MARK BRAINLIST
Answers
Answer:
B.
Explanation:
it belived to be one of the earliest chemical
pesticide.
Hope it's Help
In an experiment, a scientist decides to study the effect of exercise on cholesterol levels in people. He studies two set of people—those who exercise every day for an hour and those who don’t exercise at all. In this case, the statement that people who exercise for an hour may have lower cholesterol levels is
. To test this statement, the scientist would measure cholesterol levels in exercisers and non-exercisers. The cholesterol levels would be
Answers
The exercise reduces the levels of the low-density lipoproteins or the bad cholesterol. It is found that, the people, who exercise daily have a low level of low-density lipoproteins, and an increased level of high-density lipoprotein, which is also known as good cholesterol.
What is Scientific hypotheses?Scientific hypotheses, in general, are the premises within a given theory, which can be validated on the basis of a scientific method, contributing to the formulation of new hypotheses. In this experiment the theory says that cholesterol levels between people who exercise and people who do not exercise is different. Within this theory, the statement says that people who exercise for an hour may have lower cholesterol levels, is a hypothesis that will be confirmed or refuted after the experiment.
The dependent variable is summarized in the phenomena or factors explained or identified, because they are influenced or determined by the independent variable. In this experiment the independent variable is the performance (or not) of exercises. Exercise is what influences or determines cholesterol levels in this study. Thus, cholesterol levels are a dependent variable.
Hence, to check whether a person exercises regularly or not, the scientist can determine the cholesterol level.
To learn more about cholesterol click here:
https://brainly.com/question/27756235
#SPJ1