Answers
Answer:
je n'arrive a faire o travail je suis désolée
Answer:
THis was 2 months ago so dont think you need this
Explanation:
Related Questions
Which of the following bonds will be most difficult to break? C–O/ c-c/ c-n/c-s
Answers
Among the following bonds, the bond that is the most difficult to break is C-C bond. Carbon-carbon bonds are the strongest of all single bonds among carbon, so the answer is C-C bond.
A chemical bond is a physical phenomenon that keeps atoms and molecules together. The atoms of a molecule are held together by chemical bonds. These bonds include ionic bonds, covalent bonds, and hydrogen bonds, among others. Ionic bonds are formed when oppositely charged ions are attracted to one another. In contrast, covalent bonds form when two atoms share electrons, and hydrogen bonds are a special type of dipole-dipole interaction.
For more such questions on bonds
https://brainly.com/question/29282058
#SPJ8
Which vegetables are the most and least similar to wild cabbage? What does
this tell you about the selective breeding process for each vegetable?
Answers
The most similar vegetables to wild cabbage include broccoli, cauliflower, kohlrabi, kale, and Brussels, while selective breeding can be used as a process to improve crop features.
What is the procedure of selective breeding in crops?The procedure of selective breeding in crops makes reference to the genetic cross between plants in order to select F1 with desired features.
Therefore, with this data, we can see that the procedure of selective breeding in crops is very useful in order to improve phenotypic features such as yield and or resistance to diseases in such crops.
Learn more about selective breeding in crops here:
https://brainly.com/question/11848522
#SPJ1
Most articles pass right through the atom, this means that most of the atom is
Answers
Most articles pass right through the atom, this means that most of the atom is an empty space.
What is an atom?An atom is described as a particle that consists of a nucleus of protons and neutrons surrounded by a cloud of electrons.
Protons and neutrons make up the core nucleus of an atom, which is encircled by an electron cloud. In relation to the size of the atom as a whole, the nucleus is exceedingly small.
As a result, the electrons surrounding the nucleus are the primary target of interactions when particles or even light pass through an atom. The majority of the atom's remaining space, which includes the nucleus, is vacant.
Learn more about atoms at:
https://brainly.com/question/6258301
#SPJ1
URGENT which list orders the terms from least complex to(at the beginning) to most complex(at the end)
A. cell, atom, molecule, organelle
B. atom, molecule, organelle, cell
C. cell, organelle, molecule, atom
D. Atom, molecule, cell, organelle
Answers
Explanation:
the answer should be D because an atom is smallest
Explanation: An atom is a particle that makes up matter. A group of atoms joined together is called a molecule. A group of molecules joined together is called a cell. A group of cells joined together is called an organelle.
Final answer: D is the correct answer.
Number of
Protons
Number of
Neutrons
Atomic
Number
Mass
Number
Element
(symbol)
4
2
А
B
C
D
12
10
Using the periodic table complete the table to describe each atom Type in your answers
Answers
Answer:4 2
Explanation:
Which of the following statements regarding the heart is NOT TRUE?
a.
It is situated between the lungs in the thoracic cavity.
b.
Your heart is approximately the size of your fist.
c.
Approximately 2/3 of its mass lies to the right of the body’s midline.
d.
The apex of the heart rests on the diaphragm.
e.
The base is where major blood vessels enter and exit the heart.
Answers
Answer:
a is the correct answer
Erosion is:
A.
the process of moving materials from their source to another location through weathering.
B.
the breaking down of rock soil and minerals.
C.
magma coming up from the Earth’s mantle through openings in the crust.
Answers
Answer:
uhhh maybe A..
Explanation:
in earth science, erosion is the action of surface area process that removes soil, rock, or dissolved material from location on the earth's crust, and then transports it to another location
A testable hypothesis could be formed front which questions
Answers
A testable hypothesis is one that can be tested through empirical research, meaning that it is possible to gather evidence to support or refute it.
A hypothesis is a possible explanation that is proposed for a phenomenon that occurs in nature. In the scientific method, hypotheses are tested by collecting and analyzing data to either support or reject them.
A testable hypothesis could be formed from a question by using the following steps:
Identify the phenomenon that you want to study: Start by identifying the phenomenon that you want to study. This could be a relationship between two variables or a question about how something works. Develop a research question: Based on the phenomenon you want to study, develop a research question that can be answered through empirical research. This question should be specific and should be able to be tested using scientific methods. Formulate a hypothesis: Using your research question, formulate a hypothesis that can be tested through empirical research. This hypothesis should be a statement that proposes a possible explanation for the phenomenon you are studying. It should be clear, concise, and testable.
Test the hypothesis: Once you have developed a testable hypothesis, you can design and conduct experiments to gather data that will either support or refute the hypothesis. If the hypothesis is supported by the data, you can consider it to be a valid explanation for the phenomenon you are studying. If the data refute the hypothesis, you may need to revise it or develop a new hypothesis.
For more such questions on testable hypothesis, visit:
https://brainly.com/question/389988
#SPJ8
Are different dog breeds different species? Why or why not?
Answers
Answer:
They are the same species.
Explanation:
Full question: How come some similar animals are different species, while with domestic dogs, wildly dissimilar types are considered different breeds?
-- Z. Kornberg, Jerusalem
Michael Bruford, a professor of biological sciences at Cardiff University in Wales, explains the thought process behind this seeming double standard.
Scientists have been distinguishing between species on the basis of how they look, behave or live since recorded history began. However, two famous scientists stand out in terms of how we perceive species differences today: Carl Linnaeus, an 18th-century Swedish naturalist, and Charles Darwin. Linnaeus was the first person to formulate a single approach for describing species in a hierarchical manner according to their similarity, using his binomial nomenclature of genus followed by species (Homo sapiens, for instance). Darwin was among the first people, and certainly the most celebrated among them, to develop a credible theory on how species evolve (via natural selection). Both of these scientists' insights underpin most of what modern science utilizes when studying species and speciation.
Currently species are still primarily distinguished by their appearance, but it is becoming very clear that looks don't always tell us all we need to know about whether two organisms are different. Many so-called cryptic species exist that, to the untrained eye, look very similar or even identical to another organism--commonly found, for example, in nocturnal mammals such as bats and bush babies. If the two mated, however, they may never be able to produce viable offspring; this, in fact, is the primary criterion for dividing similar organisms into different species. Because of these red herrings--and also because the process of describing species is very long and labor-intensive--scientists are increasingly turning to DNA to assist them in identifying and describing species.
During a specific part of the cell cycle, a cell will divide into two daughter cells. What is that process called?
A.cell division
B. Metaphase
C.interphase
D. G1 phase
Answers
Answer:
Cell division
Explanation:
Just use this as an answer
12. Where is the rate of primary production the lowest?
a. upwelling along coasts
b. in the middle of the current gyres
c. along the Equator
d. around Antarctica in the summer
e. coasts
Answers
Answer:
Option B, in the middle of the current gyres
Explanation:
The zones of upwelling have high productivity as they have adequate climate and weather condition along with availability of nutrients. The same is applicable for Equator and coastal regions. The productivity of Antarctica is low but not less than that of current gyres as in the middle of the current gyres there are high current streams that reduces the biological productivity.
Hence, option B is correct
Check all that are true of the following scenario.
An archer strings an arrow on a bow and draws the string back. Aiming the bow
upwards at a 45 degree angle, the archer pauses with arms locked into position and
then releases the string. The arrow flies upwards making an arc and then sticks into
the trunk of a tree with an audible thud.
At least four different types of energy are illustrated in this example.
The first energy transformation in the scenario is chemical energy to kinetic.
From the time the archer draws the bow until the thud us heard, entropy increases in
the universe.
The energy of the arrow at the end of the scenario is equal to the energy exerted by the
muscles of the archer.
When the arrow sticks into the tree the original energy has all been used up.
Answers
Statements 1 and 3 are true, while statements 2 and 4 are false.The first energy transformation in the scenario is chemical energy to kinetic. - True.
The archer converts chemical energy stored in their muscles into kinetic energy when they release the string and propel the arrow forward.From the time the archer draws the bow until the thud is heard, entropy increases in the universe. - False. Entropy is a measure of disorder or randomness in a system. In this scenario, the archer's actions do not necessarily lead to an increase in entropy.
The energy of the arrow at the end of the scenario is equal to the energy exerted by the muscles of the archer. - False. Energy is conserved in a closed system, but some energy is lost as heat and sound during the process. Therefore, the energy of the arrow at the end may be less than the energy exerted by the archer's muscles.
When the arrow sticks into the tree, the original energy has all been used up. - False. Energy is not created or destroyed but rather transformed from one form to another. Some of the initial energy from the archer's muscles is transferred to the arrow's kinetic energy, but it is not entirely used up.In summary, statements 1 and 3 are true, while statements 2 and 4 are false.
For more such questions on energy
https://brainly.com/question/30337295
#SPJ8
BRAINLYEST AND LOTS OF POINTS PLEASE HELP
what does the mitochondria most resemble in the human body and why
Answers
Answer:
Mitochondria, just like bacteria, contain circular DNA, while human cells have linear DNA. Some mitochondrial genes are also identical or similar to bacterial DNA genes.
Explanation:
Bacteria, mitochondria grow in size, duplicate their DNA and other structures, and then divide into two identical organelles.
Part 1: David’s Case
David was a gardener with a reputation for being a very passive and mild mannered person. Over a very short
period of time his behaviour changed markedly. He became very bad tempered and lashed out at family mem-
bers, something they describe as being completely out of character for him. While working at a client’s house
he got into an argument with her and beat her to death. The prosecution argued that he had lost his temper
and murdered her in a fit of rage. The jury believed the prosecution and he was sentenced to life in prison.
Discussion Questions:
• Based on your review of David’s case, what assumptions did you make about his behaviour?
• Do you think David was responsible for his crime?
• How significant is it that David was reported to be acting “out of character” in the days immediately prior to
the murder? What other factors may be at play?
Summarize your answers to the questions and include them in your short essay
Answers
Regarding David's responsibility for his crime, it is difficult to say. The prosecution argued that he had lost his temper and murdered the client in a fit of rage, but there may be other factors at play, such as mental illness or diminished capacity.
The fact that David was reported to be acting "out of character" in the days leading up to the murder is significant, as it suggests that there may be underlying issues that contributed to his behavior. However, it is important to note that this alone does not absolve him of responsibility for his actions.
In conclusion, David's case highlights the complex nature of criminal behavior and the many factors that can contribute to it. While it is important to hold individuals accountable for their actions, it is also important to consider the broader context in which those actions occurred.
cell that forms in fertilization
a. gene
b. mitosis
c. meiosis
d. zygote
Answers
Answer:
\(\boxed {\boxed {\sf D. \ Zygote}}\)
Explanation:
During fertilization, gametes or sex cells fuse. A sperm cell from the father travels to an egg from the mother.
When they fertilize, they create a zygote, or a fertilized egg. It has a complete set of genetic information, because of the sex cells has half of the genetic information (half from mother + half from father = zygote's complete set).
The correct answer choice is D. zygote
Place the steps of endochondral ossification in order, starting with the creation of a cartilage model and ending with the presence of epiphyseal plates between the diaphysis and epiphysis.
Answer bank:
1. The diaphysis center is vascularized, and osteoblasts deposit osteoid over calcified cartilage matrix.
2. Spongy bone and the medullary cavity form in the diaphysis.
3. Spongy bone forms in the epiphysis.
4. The epiphyseal center is vascularized, and osteoblasts deposit osteoid over calcified cartilage matrix.
5. A periosteal collar develops.
Answers
The correct steps of endochondral ossification is:
A periosteal bone collar develops.spongy bone and the medullary cavity form in the diaphysis.The diaphysis center is vascularized and osteoblasts deposit osteoid over calcified cartilage matrix.The epiphyseal center is vascularized and osteoblasts deposit osteoid over the calcified cartilage matrix.The spongy bone forms in epiphysis.Which bones grow by endochondral ossification?Long and short bones, such as the phalanges and femur, arise from a cartilage model formed by endochondral ossification. Distinguishing between these two types of osteogenesis does not imply the existence of multiple types of bone tissue.
Endochondral ossification mainly forms in two stages: modifications of the hyaline cartilage that ends with the death of chondrocytes and invasion of osteogenic cells and their differentiation into osteoblasts in the cavities previously occupied by chondrocytes for deposition.
See more about Endochondral ossification at brainly.com/question/9211436
#SPJ1
When things are difficult in your course and you are having trouble what resources can you use to help you find the answers?
so can you guys help my. My teacher she ask me that question & i dont have answer for this
Answers
Answer:
You can ask your teacher, or use the resources that they have provided for you. You can also use professional websites that your teacher would approve of.
Explanation:
Please answer Quickly!!!
Answers
Answer: decrease, increase
Explanation: Coral can live in acidic water, but is less healthy and dense
Arrange the following steps or substances by where they appear in the process of glucose metabolism.
Answers
Option D. The transformation of D-glucose into glucose-6-phosphate is the initial step in the glycolysis process. Hexokinase is the enzyme responsible for catalysing this process. The glucose ring is phosphorylated in this place.
Here, a six-carbon glucose molecule is metabolised utilising two adenosine triphosphate (ATP) molecules to create two molecules of three-carbon pyruvate, two molecules of water, and four ATP molecules, resulting in a net gain of two ATP molecules. The main energy source for human metabolism is ATP. Glucose is broken down through a process called lycolysis. You can have glycolysis with or without oxygen. Two molecules of pyruvate, two molecules of ATP, two molecules of NADH, and two molecules of water are produced during glycolysis. The cytoplasm is the location of glycolysis. The breakdown of sugar involves 10 enzymes.
Arrange the following steps or substances by where they appear in the process of glucose metabolism.
Rank the items from first to last. To rank items as equivalent, overlap them.
A. The citric acid cycle
B. Electron transport chain
C. ATP synthase
D. Glycolysis
To learn more about glycolysis please click on below link
https://brainly.com/question/14076989
#SPJ4
Explain what traits you would give a pathogen if you wanted to make it hard for a vaccine to be used. List at least 4 things help please
Answers
Answer:
Here are four traits that would make it hard for a vaccine to be used:
1. Rapid mutation rate. If a pathogen mutates rapidly, it will be able to evade the immune system's defenses, including the antibodies produced by a vaccine. This is a particular problem with viruses, which can mutate very quickly.
2. Ability to evade the immune system. Some pathogens are able to evade the immune system by hiding inside cells or by changing their surface proteins so that they are no longer recognized by the immune system. This makes it difficult for the immune system to mount an effective response to the infection.
3. Ability to spread easily. If a pathogen is easily spread from person to person, it will be more difficult to prevent infection through vaccination. This is a particular problem with respiratory viruses, which can be spread through coughing and sneezing.
4. Lack of animal reservoirs. If a pathogen does not have animal reservoirs, it will be more difficult to develop a vaccine against it. This is because vaccines are typically developed using weakened or killed versions of the pathogen. If there are no animal reservoirs, there will be no source of the pathogen to use for vaccine development.
It is important to note that these are just a few of the traits that can make it difficult to develop a vaccine against a pathogen. There are many other factors that can contribute to the difficulty of vaccine development, such as the cost of vaccine development, the availability of funding, and the political will to support vaccine development.
Which of the following elements makes up the tissues and organs of animals? Carbon Hydrogen Nitrogen Oxygen
Answers
Answer:Carbon
Explanation:
Carbon is one of the most important elements for the structure of living things. It is responsible for 19% of the body composition of animals, behind only oxygen, which contributes 61%. The head is one of the main elements that make up the tissues and organs of animals.
Answer:
carbon
Explanation:
i took the test
According to the law of superposition, fossils found at which position in these
layers of rock are likely to be the youngest?
Ο Α. Α
OB. B
О с. с
OD. D
ED
C
A
We
B
Answers
The law of superposition states that fossils found in the uppermost layers, i.e., layer A, are more recent than those found in the other layers, so option A is correct for the youngest fossil.
What is the fossil's importance?When the environment changes due to climatic changes, animals or plants remain under the rocks, leaving their imprints or hard parts of their bodies, which are later studied to learn about ancestors. The fossils that are present in the lowermost rock layers are the oldest, while the uppermost layer is the youngest as it is newly formed.
As a result, the law of superposition states that fossils found in the uppermost layers, i.e., layer A, are more recent than those found in the other layers, so option A is correct for the youngest fossil.
Learn more about the fossil's importance here.
https://brainly.com/question/19507461
#SPJ1
The steps to purifying DNA are listed below. Place them in order.
Burst cells open to release DNA
Isolate concentrated DNA
Collect cheek cells
Separate DNA from proteins and debris
Answers
Answer:
Explanation:
1. Collect cheek cells
2. Burst cells open to release DNA
3. Isolate concentrated DNA
4. Separate DNA from proteins and debris
Some protists can reproduce both sexually and asexually. What's a major advantage of each?
A. Sexual reproduction increases genetic diversity, and asexual reproduction can be more rapid.
B. Sexual reproduction allows the organism to produce an exact copy of itself, and asexual reproduction can be more rapid.
C. Sexual reproduction can be more rapid, and asexual reproduction allows the organism to produce an exact copy of itself.
D. Sexual reproduction is less prone to making genetic mutations, and asexual reproduction increases genetic diversity.
Answers
Asexual reproduction has the potential for faster growth, while sexual reproduction enhances genetic diversity. In protists, sexual reproduction has the major benefit of increasing genetic.
How do protozoa reproduce both sexily and asexually?While some protists reproduce sexually using gametes, others do so asexually using binary fission. Plasmodium falciparum, which possesses both sexual and asexual variants of the organism, is an excellent illustration of a species with incredibly complex life cycles.
What is the benefit of sexual and asexual reproduction?Both approaches have benefits. A varied gene pool that can tolerate a dynamic and changing environment can be developed through sexual reproduction. Asexual reproduction is advantageous for maintaining a big, homogenous population and for species that can't move around.
To know more about reproduction visit:-
https://brainly.com/question/7464705
#SPJ1
Active transport move particles in and out of the cell_____
Answers
Answer:
against the concentration gradient
Explanation:
16 - Albinism: From genotype to phenotype
Answers
Gene alterations that impact melanin synthesis, transport, or processing are the root cause of albinism. There are various forms of albinism, each of which is brought on by gene mutations and is inherited in a unique way.
What are the albinism genotype and phenotype?The term "phenotype" refers to a trait that can be measured, such as skin colour, visual acuity, or IQ, as opposed to the term "genotype," which refers to the collection of genes or DNA that an individual receives. A condition called oculocutaneous albinism (OCA) can result from a number of distinct genes.
What albinism phenotypes are there?Oculocutaneous albinism (OCA) and ocular albinism are the two main classifications of albinism historically based on clinical characteristics (OA).
To know more about gene visit:-
https://brainly.com/question/8832859
#SPJ1
When jaw become large enough to hold the permanent teeth . The milk teeth fall and permanent teeth appear
Answers
The "exfoliation" or "shedding" of milk teeth is the name of the procedure.
What is the Dentition of Humans?The primary and permanent tooth sets make up the human dentition. Maxillary (upper) and Mandibular (lower) are the two opposing arches in which teeth are arranged. These can be split into their left and right halves along the midline (mid-sagittal plane).
Four Different Teeth Types and Their Purposes
The majority of individuals have 32 permanent adult teeth, which can be classified into four groups:
Incisors, Canines, Premolars, and Molars.Learn more about Dentition here:
https://brainly.com/question/12410041
#SPJ1
Multiple Choice Question
Which system releases adrenaline and gets your heart pumping fast in dangerous situations?
A. endocrine
B. excretory
Submit
Human Body Systems Video Lesson
Answers
Answer:
A. endocrine
Explanation:
Give me brainliest if that helped!
Pill bugs are placed in a container where they have a choice of a wet or dry environment. researchers record how much time was spent on each side.
Answers
Answer:
This question is incomplete; the complete question is as follows:
Pillbugs are placed in a container where they have a choice of a wet or a dry environment. Researchers record how much time was spent on each side. What is the INDEPENDENT and DEPENDENT variables?
The independent variable is WET OR DRY ENVIRONMENT
The dependent variable is TIME SPENT
Explanation:
The independent variable in an experiment is the variable that the experimenter manipulates or changes in order to bring about an effect on the dependent variable.
Conversely, the dependent variable is the variable that the experimenter measures in an experiment. It is dependent on the independent variable.
In this question, the researchers placed pillbugs in containers that are either WET or DRY in order to measure how much time they spent in each side. Hence, the independent variable is the WET or DRY environment the pillbugs were placed because it is what the researcher changes while the dependent variable is the TIME SPENT because it is what the researchers measure.
What prevents organisms from reproducing an unlimited number of offspring?
Answers
The primary reason living organisms cannot produce an unlimited number of offspring is senescence, otherwise known as old age.
Cells of the reproductive organs divide and continually make it possible for organisms to reproduce. As time goes on, the old cell dies and new cells replace them through mitotic or meiotic cell division of young cells that still has the ability to divide.
However, as programmed cell deaths occur with old age, the reproductive cells start losing the ability to divide, and when this happens, the ability for organisms to reproduce becomes limited.
More on reproduction can be found here: https://brainly.com/question/7464705