Answer:
The correct answer is B.
Explanation:
Mitosis usually results in two identical daughter cells, whereas meiosis results in four sex cells.
Like the camel, many animals that live in soft sandy areas have large wide feet compared to their body size. The
large feet are an advantage in these environments because they -
are rapidly toughened by sharp sand grains
distribute body weight over a large area
allow rapid digging in the sand
Dreduce the vibrations caused by walking
Answer:
distribute body weight over a large area
Explanation:
This one's fairly simple. If you have large feet, then your body weight is distributed over a large area (you don't sink as much in sand). If your toes were small, massive body weight would sink the feet into sand.
Say you were traveling up a mountain, where would you have the most trouble breathing? At the bottom of the mountain or at the top of the mountain? Describe why.
Answer:
top of the mountain
Explanation:
the air pressure on top of a mountain is really bad so it is harder to breathe
1. Within food chains, matter is
a) constantly increasing
b) constandy decreasing
c) always changing from one element to another
d) alavays recycled from one chemical form into
another
Answer:
C
Explanation:
When an organism eats anothee organism matter transfers
In mice, black fur is dominant to grey fur. If you cross a BB male with a Bb female, what are the possible genotypes and phenotypes of the offspring? What is the percent chance for each type?
Answer:
50% BB (black), and 50% Bb (black)
Explanation:
When you make the punnet square, you will get two BB, and two Bb. That will show you that the outcome of all the offspring will be black. There is 0% chance there will be a grey mouse because it is the recessive gene.
how can you differentiate visually between a conidia and a sporangia
To visually differentiate between conidia and sporangia, observe their appearance and reproductive structures. Conidia are asexual spores that form on conidiophores, while sporangia are sac-like structures containing asexual spores called sporangiospores.
Conidia are produced externally on specialized structures called conidiophores, often appearing as chains or clusters of individual spores. They vary in size, shape, and color depending on the fungal species. Sporangia, on the other hand, are sac-like structures that enclose sporangiospores. These structures form at the tips of specialized hyphae called sporangiophores and release spores when they rupture.
Summary: Visually differentiating between conidia and sporangia involves examining their reproductive structures and appearance. Conidia form on conidiophores and appear as chains or clusters, while sporangia are sac-like structures containing sporangiospores.
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In human beings, brown eyes are typically dominant over blue eyes. A brown-eyed man, whose father was brown-eyed and whose mother was blue-eyed, married a blue-eyed woman whose father and mother were both brown-eyed. The couple has a blue-eyed son. For which of the individuals mentioned can you be sure of the genotypes? What are their genotypes? What genotypes are possible for the others?
Answer: they have recessive genes
Explanation:
if they have different colo eyes they have one recessive one dominant
evidence supports a model in which entry of prpsc into the brain of an animal causes the _________ protein to change from its normal conformation to the abnormal form.
Evidence supports a model in which entry of \(PrP^{Sc\) (abnormal form of prion protein) into the brain of an animal causes the normal prion protein \((PrP^C)\) to change from its normal conformation to the abnormal form.
\(PrP^{Sc\) acts as a template and induces conformational changes in \(PrP^C\), leading to the conversion of the latter into the pathological isoform. This conformational alteration involves a structural rearrangement of the protein's secondary and tertiary structure, resulting in the acquisition of β-sheet-rich aggregates with increased insolubility and resistance to proteolytic degradation.
The converted \(PrP^{Sc\) protein has the ability to recruit and convert additional \(PrP^C\) molecules, thereby propagating the abnormal conformation in a self-perpetuating manner. This conversion process is thought to be a key event in the development of prion diseases, as the accumulation of \(PrP^{Sc\) leads to the formation of insoluble aggregates, neuronal dysfunction, and ultimately neurodegeneration.
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The complete question is:
Evidence supports a model in which entry of \(PrP^{Sc\) (abnormal form of prion protein) into the brain of an animal causes the normal _________ protein \((PrP^C)\) to change from its normal conformation to the abnormal form.
How did photosynthesis and cellular respiration affect Earth's atmosphere?
Answer: it is line A the other person is wrong.
Explanation:
The process of respiration produces energy for organisms by combining glucose with oxygen from the air. During cellular respiration, glucose and oxygen are changed into energy and carbon dioxide. Therefore, carbon dioxide is released into the atmosphere during the process of cellular respiration.
hope this helps
While cellular respiration emits carbon dioxide into the environment, photosynthesis absorbs carbon dioxide.
What is cellular respiration?Cellular respiration is a sequence of chemical processes that decompose glucose to generate Energy, which is then utilized as fuel to power a variety of reactions all through the body.
Cellular respiration consists of three major steps: glycolysis, the citric acid cycle, and oxidative phosphorylation.
The goal of cellular respiration is straightforward: it provides cells with the energy they require to function.
The greater the rate of photosynthesis relative to respiration, the faster ecosystems 'take in' atmospheric carbon.
As CO2 levels in the atmosphere rise due to human activity, causing global warming, the balance between photosynthesis and respiration in individual plants can shift.
Thus, this way, photosynthesis and cellular respiration affect Earth's atmosphere.
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Is sugar part of a nucleotide
Answer:
Yes.
Explanation:
Nucleotide has three parts
Sugar
Phosphate group
Nitrogenous base
1. Determine hormones with external and internal secretion.
2. The nervous system and the hormonal system control the sending of messages to different organs of the body, describe the difference between them.
3. Explain the role of thyroxine in the metabolic processes of our body.
4. Describe the role of insulin in regulating blood sugar. What are the effects of adrenaline in the body?
5. Distinguish the role of testosterone and estrogen in human sexual development.
Answer:
yeah
Explanation:
Thyroxine is the main hormone secreted into the bloodstream by the thyroid gland. It plays vital roles in digestion, heart and muscle function, brain development and maintenance of bones.
Alternative names for thyroxine
T4; tetraiodothyronine; thyroxin
What is thyroxine?
Thyroxine is the main hormone secreted into the bloodstream by the thyroid gland. It is the inactive form and most of it is converted to an active form called triiodothyronine by organs such as the liver and kidneys. Thyroid hormones play vital roles in regulating the body’s metabolic rate, heart and digestive functions, muscle control, brain development and maintenance of bones.
How is thyroxine controlled?
The production and release of thyroid hormones, thyroxine and triiodothyronine, is controlled by a feedback loop system that involves the hypothalamus in the brain and the pituitary and thyroid glands. The hypothalamus secretes thyrotropin-releasing hormone which, in turn, stimulates the pituitary gland to produce thyroid stimulating hormone. This hormone stimulates the production of the thyroid hormones, thyroxine and triiodothyronine, by the thyroid gland.
This hormone production system is regulated by a feedback loop so that when the levels of the thyroid hormones (thyroxine and triiodothyronine) increase, they prevent the release of both thyrotropin-releasing hormone and thyroid stimulating hormone. This system allows the body to maintain a constant level of thyroid hormones in the body.
What happens if I have too much thyroxine?
The release of too much thyroxine in the bloodstream is known as thyrotoxicosis. This may be caused by overactivity of the thyroid gland (hyperthyroidism), as in Graves' disease, inflammation of the thyroid or a benign tumour. Thyrotoxicosis can be recognised by a goitre, which is a swelling of the neck due to enlargement of the thyroid gland. Other symptoms of thyrotoxicosis include intolerance to heat, weight loss, increased appetite, increased bowel movements, irregular menstrual cycle, rapid or irregular heartbeat, palpitations, tiredness, irritability, tremor, hair
24. What is a chemical reaction? What are the chemicals that are added and made called?
25. What is a catalyst?
26. What type of macromolecule are enzymes?
27. How are enzymes able to speed up reactions?
28. Why are enzymes important in living organisms?
Answer:
24. A chemical reaction is a process in which some substances change into different substances
25. A substance capable of initiating or speeding up a chemical reaction
26. protein macromolecules
27. by lowering the activation energy needed for the reaction to start.
28. Enzymes allow reactions to occur at the rate necessary for life. In animals, an important function of enzymes is to help digest food.
Explanation:
i have this same assignment :)
The word equations show two different types of respiration that can happen in yeast.
X: glucose + oxygen carbon dioxide +_____
Y: glucose carbon dioxide +_____
Please give 1 answer.
A.
x - water
y- ethanol
B.
X-ethanol
y- water
C.
none
Answer:
X - water
Y - ethanol
Explanation:
glucose turns into ethanol due to anaerobic respiration in the yeast enzymes.
what is one reactants of photosythensis
Answer:Carbon Dioxide (c02) or Water (h2o)
Explanation: there u go :)
Marcia places her plant near the window she waters the plant every day what will happen to the plant after one week. A it’s leaves and flowers will stay the same. B it’s leaves and flowers will grow toward the floor
C it’s leaves and flowers will grow toward the light in the window
D it’s leaves and flowers will grow away from the light in the Window
Answer: C
Explanation: Wherever the sun is, the plants will lean/follow
Answer:
The answer would be
C.) it's leaves and flowers will grow toward the light in the window.
Explanation:
The fossil record is a history of life indicated by fossils found in Earth's
crust. What information about organisms in an environment can the fossil record provide?
A. How natural selection occurs
B. How organisms in an environment changed over time
C. How selective breeding occurs
D. How genetic variation occurs
Answer:B
Explanation:
It’s B because as time goes organisms change and they get buried under the fossil records to that’s why I think it’s B hope this helped
The results of an investigation are the
Answer:
dependent variable or conclusion
Please answer each item in complete sentences using appropriate APA in-text citations as needed. 1. In your own words describe assimilation. 2. Describe the differences between enculturation and acculturation. 3. What is a Testimonio and why might teachers use them? 4. Why do we frequently represent culture as an iceberg? 5. What are the differences between race, culture, and ethnicity? 6. What does assimilation have to do with the history of Indian Boarding Schools? 7. What is culture? 8. Who was Pratt and what did he do? 9. What was meant by the phrase "Kill the Indian and save the man
m
? 10. Based on all that you have encountered thus far in class, what impact does culture have on education? (To get full credit, your response must be a minimum of five sentences long and use at least three academic terms and ideas covered thus far in the course).
Assimilation involves adopting the dominant culture's traits, leading to a loss of original identity, while enculturation and acculturation respectively refer to learning one's own culture and incorporating elements of another culture. Testimonios share personal experiences, culture is represented as an iceberg, and race, culture, and ethnicity differ in their focus. Indian boarding schools aimed to assimilate Native Americans, with Richard Henry Pratt promoting the phrase "Kill the Indian and save the man." Culture significantly impacts education by influencing students' experiences, values, and learning styles, with cultural responsiveness.
Assimilation refers to the process through which individuals or groups adopt the cultural traits, values, and norms of a dominant culture, often resulting in a loss or suppression of their original cultural identity (Berry, 1997). It involves a gradual integration into the dominant culture, often driven by social pressure or the desire for social acceptance.
Enculturation refers to the process of learning and internalizing the cultural beliefs, practices, and values of one's own culture through socialization and upbringing. It occurs naturally within a society and is primarily driven by familial and community influences. On the other hand, acculturation refers to adopting and incorporating elements of a different culture into one's own cultural framework. Acculturation typically occurs in multicultural contexts and involves interactions between individuals or groups from different cultural backgrounds.
Testimonio refers to a form of narrative or storytelling that provides a platform for individuals, particularly marginalized or oppressed groups, to share their personal experiences and perspectives. Teachers might use testimonios as educational tools to foster empathy, challenge stereotypes, and promote understanding of diverse lived experiences.
The representation of culture as an iceberg suggests that visible aspects such as behaviors, customs, and artifacts are only a small portion of the culture, while the more significant part remains hidden beneath the surface. This representation highlights the importance of understanding the underlying values, beliefs, and assumptions that shape a culture, as they often influence behaviors and actions in significant ways.
Race refers to a socially constructed classification system that categorizes individuals based on physical characteristics such as skin color, hair texture, and facial features. Culture, on the other hand, encompasses a broader range of shared beliefs, values, customs, and behaviors that are transmitted across generations within a particular group. Ethnicity refers to a social group's shared cultural heritage, often characterized by a common ancestry, language, history, or geographic origin.
Assimilation is closely connected to the history of Indian Boarding Schools, which were established in the United States with the goal of assimilating Native American children into mainstream American culture. These schools aimed to eradicate Native American cultural practices, languages, and beliefs, and replace them with Euro-American norms. Children were forcibly separated from their families, discouraged from speaking their native languages, and subjected to cultural suppression, resulting in the loss of their cultural heritage and identity.
Culture refers to the shared patterns of behaviors, beliefs, values, customs, symbols, and artifacts that characterize a particular group or society. It encompasses the knowledge, practices, and ways of life that are learned and transmitted within a social group, shaping individuals' identities and behaviors.
Pratt refers to Richard Henry Pratt, an influential figure in the Indian boarding school movement in the late 19th and early 20th centuries. He founded the Carlisle Indian Industrial School. Pratt believed in the assimilation of Native American students through education, focusing on vocational training and English language acquisition. He advocated for the slogan "Kill the Indian and save the man," reflecting the belief that eradicating Native American cultural practices and traditions was necessary for their integration into mainstream American society.
Culture has a significant impact on education as it influences students' experiences, values, beliefs, and learning styles. Understanding students' cultural backgrounds and incorporating culturally responsive teaching practices can enhance educational outcomes, promote inclusivity, and foster a positive learning environment. Recognizing the diversity of cultures in the classroom and valuing students' unique perspectives can increase engagement, motivation, and academic success. Furthermore, addressing cultural biases and promoting cultural competency among educators can contribute to equity and social justice in education.
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A company wants to test a new dog food that
is supposed to help overweight dogs lose
weight. 50 dogs are chosen to get the new
food, and 50 more continue their normal diets.
After one month, the dogs are checked to
see if they lost any weight.
Answer:
To ensure a fair comparison, the company should ensure that the two groups of dogs are similar in all aspects except for their diets.
Explanation:
This is a scenario for a controlled experiment, where the company wants to test the effectiveness of new dog food by comparing it to the current diet of a group of dogs.
The experimental group consists of the 50 dogs given the new dog food, while the control group consists of the 50 dogs that continue their normal diets. The company will measure the weight of each dog in both groups before and after one month of the experiment.
To ensure a fair comparison, the company should ensure that the two groups of dogs are similar in all aspects except for their diets.
Why would you want more muscle layers in the stomach?
The reason why would we would want more muscle layers in the stomach is because presence of multiple muscle layers in the stomach enhances its functionality in food breakdown, regulation of chyme release, and adaptability to different food volumes.
Having more muscle layers in the stomach is essential for several reasons.
Firstly, the stomach is a crucial part of the digestive system, and the additional muscle layers help with the mechanical breakdown of food. These muscles, comprised of longitudinal, circular, and oblique layers, contract and relax in a coordinated manner to churn and mix the ingested food with gastric secretions, turning it into a semi-liquid substance called chyme.
Secondly, the muscular layers play a role in controlling the release of chyme into the small intestine. The pyloric sphincter, a ring of muscle at the stomach's exit, contracts and relaxes to regulate the movement of chyme. This ensures optimal digestion and absorption of nutrients in the small intestine.
Lastly, more muscle layers in the stomach provide increased strength and flexibility. This enables the stomach to accommodate varying amounts of food and return to its original shape after digestion.
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3. A person carries a suitcase having mass of 50 kg on his head What is the weight of the suitcase? (g = 9.8 m/s)
Answer:
W= 490 Kg
Explanation:
W= Mg
W= 50×9.8
W=490Kg
With the knowledge that radiation causes mutations, many assume that human-made forms of radiation are the major contributors to the mutational load in humans.
A. Approximately half of the radiation exposure to humans comes from natural sources and half comes from human-made sources. Although diagnostic X rays do contribute about 10 percent of the exposure, other forms of human-made forms of radiation contribute only a relatively small amount. Human-made radiation exposure is not a major factor.
B.Most known sources of radiation are human-made, but natural sources are more harmful. Human-made radiation exposure is not a major factor.
C.Approximately 78 percent of the radiation exposure to humans comes from natural sources. Although diagnostic X rays do contribute about 10 percent of the exposure, other forms of human-made forms of radiation contribute only a relatively small amount. Human-made radiation exposure is not a major factor.
The correct answer is A.
Where did radiation exposure to humans come from?Approximately half of the radiation exposure to humans comes from natural sources and half comes from human-made sources. Although diagnostic X-rays do contribute about 10 percent of the exposure, other forms of human-made forms of radiation contribute only a relatively small amount. Human-made radiation exposure is not a major factor. This means that while human-made forms of radiation can cause mutations, they are not the major contributor to the mutational load in humans. Natural sources of radiation, such as cosmic rays and radon gas, are responsible for a significant portion of radiation exposure.
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4. What are three indicators of a chemical
change?
Answer:
Gas bubbles, color changes, production of light, volume change, or a change in smell or taste (p.s, don't lick the science).
what are the similarities between this activity and actual mitosis
The DNA within a cell is duplicated during both meiosis and mitosis. Two sister chromatids are produced for each chromosome as a result of the replication and continued joining of each DNA strand, or chromosome.
What is mitosis?Mitosis is defined as the cell-division process in which the chromosomes multiply and are equally distributed between the two daughter cells. Prophase, Prometaphase, Metaphase, Anaphase, and Telophase are the five stages that make up mitosis. Meiosis is defined as a process by which a single cell undergoes two divisions, resulting in four cells with half the original genetic material.
Cell division occurs during meiosis as well as mitosis. The M-phase of the cell cycle is where both processes take place. The prophase, metaphase, anaphase, and telophase stages are typical for both cycles. DNA synthesis occurs during both cycles. A common goal of meiosis and mitosis is the division of the nucleus and its DNA into two daughter cells.
Thus, the DNA within a cell is duplicated during both meiosis and mitosis. Two sister chromatids are produced for each chromosome as a result of the replication and continued joining of each DNA strand, or chromosome.
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1 Which of the following is a Eukaryotic cell?
A Bacteria
B Virus
C Animal/Plant Cell
D All of the above.
Answer:
a
Explanation:
4) Do all organisms eat the same food in the food web? How do you know this?
( I started with "No, not all organisms eat the same food")
No, not all organisms eat the same food in the food web, this is because there are different hierarchies is the food chain.
What is the food web?A food web is a diagram that shows what is eaten by what in an ecological community and how food chains naturally connect to one another. Consumer-resource system is another term for the food web.
Each organism in an ecosystem is a link in a number of food chains. Energy and nutrients can go along different food chains as they move through the ecosystem.
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What is an adaptation?
A change that prevents a species from surviving.
A change that helps a species survive.
A change that makes a species become extinct.
A change that makes a species prettier to look at.
Answer:
the second one
Explanation:
match each term to its definition
a steam of plasma
Answer:
The solar wind is a plasma, a stream of charged particles (ions and electrons) that are continuously escaping from the Sun into the interplanetary medium.
What year did anton van leeuwenhoek contribute to the cell theory?
Answer:
1678
Explanation:
In 1678, Antoni van Leeuwenhoek reported that he had observed "little animals" — protozoa — through a microscope. The discovery of the cell was made possible by the invention of the microscope, which was made possible by improved lens-grinding techniques.
what are some examples of directional selection
Answer:
An example of directional selection is fossil records that show that the size of the black bears in Europe decreased during interglacial periods of the ice ages, but increased during each glacial period. Another example is the beak size in a population of finches.
Dna damage leads to accumulation of ________ p53, which _______ production of a cdk inhibitor to ________ the cell cycle.
When DNA is damaged, phosphorylated p53 builds up and causes a rise in the creation of a cdk inhibitor, which stops the cell cycle.
A DNA simple definition is what?the molecule that houses the hereditary material needed for a creature to develop and work, and is present inside cells. Dna strands enable the transmission of this knowledge from one generation to the next.
How does DNA affect a person?Deoxyribonucleic acid, or DNA, is the essential component of a person's whole genetic make-up. Almost all of the body cells contain it. A child's DNA is also the same in all of their cells. As an illustration, a man's blood shares DNA with his skin cells, sperms, and saliva.
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