What goes first with organ ,epithelial tissue ,epithelial cell and organ system
Answer:
All substances that enter or leave an organ must cross the epithelial tissue first.
What would happen if the members of one homologous pair did not segregate to opposite poles, but instead both went to the same pole? How many chromosomes would be found in the four gametes produced?
If the members of one homologous pair did not segregate to opposite poles, but instead, both went to the same pole, then it would lead to trisomy.
What is a chromosome?A chromosome is a lengthy DNA molecule that contains all or a portion of an organism's genetic code. The very long, thin DNA fibers in most chromosomes are covered with packing proteins; in eukaryotic cells, the histones are the most significant of these proteins.
DNA may be precisely duplicated during these cell divisions because of chromosomes.
If the members of one homologous pair did not segregate to opposite poles, but instead, both went to the same pole, then it would lead to trisomy. Hence, two chromosomes lack chromosomes, while two chromosomes will have two copies of chromosomes.
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An animal will preferentially feed on:
An animal will choose to eat the prey that offers the greatest energy yield per unit of effort.
The easiest way to understand conduct from an evolutionary standpoint is as a feature that can fulfill the three requirements for evolution through natural selection.
When an organism's own survival and ability to reproduce is put at risk, kin selection is the evolutionary strategy that favors the success of its relatives' procreation. Kin selection can make kin altruism appear to be selfless behavior that has evolved over time.
Overall, the case for reciprocal altruism in species other than humans is tenuous. Nonhuman animals appear to be far more "in the present" than humans, and the majority, if not all, of help-giving behavior can be explained by kin selection or by immediate rewards.
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A scientist was studying a population of elephants. The first year, he counted a population of 80. Over the next eight years, the population’s numbers were 94, 100, 103, 110, 125, 120, 125, 120. What appears to be the carrying capacity for this population?
120
124
125
126
At any given time, this population could accommodate 125 people.
Which population do you refer to?Any whole group that shares at least one trait is referred to be a population. People do not make up all populations. Populations can include, but are not limited to, people, animals, groups, organizations, buildings, houses, trucks, farms, and things.
What does "population mean" mean exactly?The average calculated from the entire group, distribution, or population is known as the population mean. It is computed by dividing the entire population of variables by the sum of all the variables in the population. The population mean is shown here as. The population's observations are combined to generate X.
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Answer: C. 125
Explanation: I got it right!
Which of the following is NOT true about ecosystems? (a) They include biotic components. (b) They can be a wide range of sizes. (c) They include no human components. (d) Many interactions among species occur in them. (e) They include abiotic components.
Answer: (c) They include no human components.
Explanation: An ecosystem is a biological community made of living organisms (biotic factors like humans, animals, and plants) and their environment (abiotic factors such as rocks, the sun, and water).
1. SELECT ONE NATURAL HAZARD IN THE PICTURE AND SUGGEST WAYS ON HOW PEOPLE MUST BE PREPARED TO FACE THE HAZARD IN TERMS OF THE DIFFERENT PERSPECTIVES GIVEN BELOW
CHOSEN HAZARD: VOLCANIC ERUPTION
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Example: Earthquake
The natural hazard chosen is earthquake and ways in which people can prepare for it is by making an emergency plan and also providing safety measures to avoid injuries.
What is an Earthquake?This is referred to as the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere which creates seismic waves.
The ways in which people can prepare for it is by making an emergency plan so as to ensure that no one is stranded and also providing safety measures to avoid injuries caused by the falling and collapse of substances in the affected area.
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What are the 4 stages of the Calvin cycle?
The 4 stages of the Calvin cycle are:
Carbon Fixation: During this stage, carbon dioxide is taken in and combined with a five-carbon sugar molecule (ribulose bisphosphate) to form a six-carbon sugar molecule called glucose-6-phosphate.Reduction: The six-carbon sugar molecule is then reduced to form a three-carbon sugar molecule called glyceraldehyde 3-phosphate (G3P).Regeneration: This stage involves the use of energy from ATP and NADPH to regenerate the five-carbon sugar molecule used in the first stage.Synthesis: The energy from ATP and NADPH is used to convert the G3P molecules into various other molecules, such as amino acids and lipids, which are used to build other molecules in the cell.The Calvin cycle is the light-independent series of reactions in photosynthesis. It is also known as the dark reaction and the reductive pentose phosphate cycle.
It is a metabolic pathway that takes place in the stroma of chloroplasts and is part of photosynthesis, which converts carbon dioxide and water into glucose and other carbohydrates. The Calvin cycle uses the energy of ATP and NADPH produced during the light-dependent reactions to convert carbon dioxide into glucose.
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how many wisdom teeth does the average adult have?
Answer: An average adult has four wisdom teeth.
Explanation:
The normal adult will have four (or fewer) wisdom teeth. Some people however do have extra wisdom teeth. These people have an additional tooth or set of teeth. These extra wisdom teeth are referred to as “supernumerary” teeth.
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Watch this short ted talk (its like 6-8 minutes long) and answer the following questions to it (link for it is in the image)
What realization did Dr. Natterson-Horowitz come to due to her work as both a cardiologist at UCLA and a contractor who helped the Los Angeles Zoo? What question did that raise in her mind?
What is one of the explanations that Dr. Natterson-Horowitz gives for why there’s such a divide between treatment of humans and animals in contemporary society?
Name and describe one of the three conditions Dr. Natterson-Horowitz mentions that have been well-studied by veterinarians, who might have insights to provide in diagnosing or treating those conditions in human patients.
Do you find Dr. Natterson-Horowitz’s argument that physicians can learn a lot from veterinarians convincing? What part of her argument is, to you, especially strong or weak?
Let’s play devil’s advocate. What are two arguments you would use to support the claim that medical doctors and veterinarians do not need to collaborate in the way that Natterson-Horowitz is suggesting?
Natterson-Horowitz mentions several programs that she works with to “close the gap” between medical doctors and veterinarians. What is another way that these two fields could collaborate?
Dr. Natterson-Horowitz is a cardiologist at UCLA and a contractor who helped the Los Angeles Zoo, she realized that the divide between treatment of humans and animals in contemporary society.She explains that one of the reasons for this divide is that medical doctors and veterinarians have traditionally been trained in separate disciplines, with little overlap or communication between the two.
One of the three conditions Dr. Natterson-Horowitz mentions that have been well-studied by veterinarians, is cancer, veterinarians have been studying cancer in animals for decades and have developed treatments and therapies that are now being applied to human patients.
What other thing does Dr. Natterson-Horowitz do?Dr. Natterson-Horowitz's argument is that physicians can learn a lot from veterinarians. One of the strongest points in her argument is that veterinarians have been studying diseases and conditions for decades in animals, and their findings can be applied to human medicine.
One argument against the claim that medical doctors and veterinarians do not need to collaborate is that the anatomy and physiology of animals are different from that of humans, and what works for animals may not work for humans. Another argument is that medical doctors and veterinarians have different priorities and goals, with medical doctors focusing on human health and veterinarians focusing on animal health.
Therefore, Another way that these two fields could collaborate is by creating a program that allows medical students to spend time in the field with veterinarians, and vice versa, to gain a better understanding of each other's work and the similarities and differences between human and animal medicine.
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which of the following is not a normal characteristic of the normal microbota of the urinary and reproductive system
The typical microbiota are more prevalent in the male urethra than the female urethra.
briefly:-In most cases, the urethra is axenic. In the urethra, particularly in the distal stop, germs are usually present. At specific times during the menstrual cycle, the relative quantities of various species of common vaginal microbiota may alter. By out-competing harmful microbes, the normal microbiota shield us from disease. often connected to sickness symptoms.
What three components of urine might be found in a patient with a urinary tract infection?UTIs are indicated by the presence of bacteria in the urine. A urinary tract infection may be indicated by the presence of yeast cells or parasites (such as the parasite that causes trichomoniasis). The sample could not be as pure as it should be if there are squamous cells present.
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What is the % yield if 4 moles of hydrogen is reacted with 3 moles of oxygen and produces 3 moles of water?.
75 is the % yield if 4 moles of hydrogen is reacted with 3 moles of oxygen and produces 3 moles of water. chemically water is known as H2O.
A water patch is made up of two hydrogen tittles and one oxygen snippet. But you can not just stick two hydrogen tittles together and call it a day. The factual process of producing water is a little more complicated 2H2O Energy = 2H2 O2. Two motes of diatomic hydrogen( H2) must be combined with one patch of diatomic oxygen( O2) to produce two motes of water( H2O)( O2). During the process, energy will be released. This response( 2H2 O2 = 2H2O Energy) has been known for over two centuries, but no one has succeeded in making it work in a homogeneous result until now.
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Scientists are studying the chromosomes from a fruit fly and determine that two genes, labeled A and F, are found on two separate chromosomes. They draw a diagram, shown below.
The scientists cut the DNA into the A and a alleles, and into the F and f alleles. The scientists believe that the gene coding for the trait labeled A is smaller in size than the gene for trait F.
If this is true, what should the scientists expect to see after running gel electrophoresis on the DNA fragments?
The DNA coding for trait A will travel slower on the gel than the DNA coding for trait F.
The DNA coding for trait F will travel faster on the gel than the DNA coding for trait A.
The DNA coding for trait A will travel further on the gel than the DNA coding for trait F.
The DNA coding for trait F will travel further on the gel than the DNA coding for trait A.
Morgan examined the data and hypothesised that a process of crossing over, or recombination, could account for his findings. He specifically suggested that information could "cross over" between the two paired chromosomes.
What is chromosomes?A component that can be discovered in the nucleus of a cell. On a chromosome, proteins and DNA are organised into genes. Chromosomes are the DNA units that transmit inherited traits from one generation to the following. Because they transmit hereditary traits to the DNA of the following generation, they are referred to as the seat of hereditary information.
Who is the father of chromosome?Hermann Henking in Leipzig was the first to recognise the X chromosome's unique characteristics in 1890. Henking discovered that one chromosome did not participate in meiosis while researching the testicles of Pyrrhocoris. The reason why chromosomes have this moniker is because they may absorb stains (chroma in Greek means color). The basic units of information for DNA are nucleotide base pairs, and chromosome 1 covers around 249 million of them.
Gel electrophoresis is a technique that has been frequently used by scientists to modify heritable information.
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Which statement best describes a difference between genes and alleles?
A) Alleles code for physical traits, while genes code for internal traits.
B) Genes can mutate, while alleles cannot.
C) Alleles occur in pairs, while genes do not.
D) Genes provide variation in traits, while alleles express traits.
Alleles occur in pairs, while genes do not. Option C.
Gene vs AllelesIn genetics, genes are the basic unit of heredity and represent the instructional materials for the synthesis of proteins. In other words, genes are made up of a sequence of DNAs that dictate the kind of trait to be expressed in individuals.
Alleles, on the other hand, are the complementary DNA sequence of genes. Since genes are made up of DNAs and DNAs are double-stranded, it means that each gene is made up of two complementary strands. Each strand is what is known as an allele.
For example, assuming a gene is represented by R. The gene could be RR if it is homozygous dominant, Rr if it is heterozygous, or rr if it is homozygous recessive. The two alleles make the gene while each pair are known as an allele.
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Which of the following best describes what will result when a glucose-fed yeast cell is placed in an anaerobic environment
Answer:
Which of the following best describes what will result when a glucose-fed yeast cell is placed in an anaerobic environment? The yeast cell will produce ATP through fermentation, generating CO2 and ethanol as byproducts.
On the basis of the hemoglobin similarity, what organisms appear to be most closely related to humans? Explain your answer
Chimpanzees appear to be closely related to humans. +chimpanzee aming hemoglobin protein
What is hemoglobin ?Red blood cells include a protein called haemoglobin, which distributes oxygen to your body's organs and tissues while returning carbon dioxide to your lungs. A low red blood cell count indicates a low haemoglobin level, which can be determined by a haemoglobin test (anemia).
Hemoglobin levels may fall if an illness or condition interferes with your body's capacity to make red blood cells. You may experience extreme fatigue and weakness if your haemoglobin level is low, which indicates that your body isn't getting enough oxygen.
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Helpppppppppppppppppp pleade
Answer:
the answer to that question has to be ..
A .
NADH (scientific name - non acronym: Nicotinamide adenine dinucleotide)
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The female reproductive part of an angiosperm is the _______ and the male reproductive part is the _________.
The female reproductive part of an angiosperm is the pistil and the male reproductive part is the stamen.
The pistil is the female reproductive organ in a flowering plant, it consists of three main parts: the stigma, style, and ovary. The stigma is the receptive surface at the top of the pistil where the pollen grains land, the style is stalk that connects the stigma to the ovary and the ovary contains ovules that develop into seeds after fertilization.
The stamen is the male reproductive organ in a flowering plant, it consists of the anther and the filament. The anther is the structure that produces the pollen grains and the filament holds the anther in place. Pollen is transferred to the pistil, where it fertilizes the ovules, leading to the formation of seeds.
In summary, the pistil is the female reproductive organ and the stamen is the male reproductive organ in angiosperms.
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matter changes form during a change of state but it is ____
Which law explains that genes are separated from each other during gamete formation and are recombined during fertilization?
The law of segregation states that the genes are separated from each other during gamete formation and are recombined during fertilization.
Law of segregation was the second law of inheritance and presented by Mendel. It explained that the genes existed in a pair of alleles and during gamete formation, only one of the two alleles was received by a single gamete.
Fertilization is the process of the fusion of the male and the female gametes. It results in the formation of zygote that is diploid in nature as both the gametes are haploid. The process of fertilization may occur inside the female body or on the external environment.
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What is the structure that contains the genetic material of an organism encoded into DNA?
The majority of genetic material is DNA, however some, like retroviruses, also contain RNA. For the most part, RNA functions as a messenger in higher species.
Scientists explain that this is because DNA and RNA have different molecular structures. A molecule needs to possess specific qualities in order to be regarded as genetic material.
Replication is the capacity to duplicate something.It need to be both chemically and structurally stable.Evolution should be possible due to mutation.It must have a hereditary structure that adheres to "Mendelian inheritance."The name "DNA" refers to deoxyribonucleic acid. It is an organic substance with a distinctive molecular make-up. All prokaryotic and eukaryotic cells contain it.
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The pressure exerted by the left ventricle must push blood where?
When the left ventricle contracts, it forces blood through the aortic semilunar valve and into the aorta. The aorta and its branches carries the blood to all the body's tissues.
WHAT IS AORTAAorta is the largest artery that carries blood and oxygen from the heart throughout the body. The structure of the aorta begins at the aortic valve which separates the aorta from the left ventricle of the heart. The left ventricle is the last chamber through which blood flows towards the heart.
Just above the aortic valve, there are two branches known as the left main coronary and the right main coronary. These two branches of the aorta are responsible for transporting blood to the heart muscle. From the aortic valve, the aorta moves upward, extending around the second rib.
This section is known as the ascending aorta. Then, the aorta curves down and to the left. This part is called the aortic arch. From here, the aorta runs down the body to a final section called the descending aorta.
FUNCTION OF AORTAAorta is very important for the human body because it is the main blood vessel that supplies oxygenated blood to all tissues and organs of the body to keep them functioning properly.
So, if there is a problem with the aorta, such as a blockage, structural anomaly, or rupture, it can harm other organs of the body. Problems with the aorta can be triggered by uncontrolled high blood pressure and cholesterol.
Thus, several ways can be done to maintain the health and function of the aorta, such as consuming a balanced nutritional diet, doing physical activity, stopping smoking, and regularly seeing a doctor to monitor your blood pressure and cholesterol.
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Describe the relationship between DNA, chromosomes, and genes.
Genes are part of your DNA, which makes you different, and chromosomes carry DNA in cells. Also, DNA maintains your structure.
What is an EMTs responsibility?
EMTs responsibility includes Responding to 911 calls for emergency medical help, such as doing CPR or bandaging a wound.
In emergency medical situations, paramedics and emergency medical technicians (EMTs) provide care for the ill and injured. The prompt response and expert care that these employees give frequently determine the lives of people. Responding to emergency calls, EMTs and paramedics provide medical care and transport patients to hospitals.
EMTs and paramedics are dispatched by a 911 operator to the emergency scene, where they frequently collaborate with police and firefighters.
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Which of the following would be the best technique to use to preserve the natural condition of the soil and reduce the risk of erosion or
the loss of top soil?
O sustainable crop intensification
O deep tilling
O zero-till farming
O green manure
The ideal method to adopt in order to maintain the soil's natural state and lessen the likelihood of erosion or topsoil loss is sustainable crop intensification.
Soil contains what?Minerals, biological elements (dead and living creatures), air, and water are all found in soil. Because of the amazing connections between any of these four components, sand is one of the significant and dynamic resources on our planet. Soil is used by people in many different ways.
Why not define soil?The stuff who covers the earth's surface, defined as soil, is created as a result of rock weathering. Mineral particles, organic matter, air, water, and living things make up the majority of it's own composition.
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Which use of land is most likely to result in erosion?
O leaving large stretches of land undeveloped
O applying compost to soil to feed life
O plowing fields perpendicular to a hillside O removing vegetation along a hill
Answer:
D. Removing vegetation along a hill
Explanation:
Removing vegetation disturbs the ground, which makes it unstable and can cause erosion.
Help me please I need this soon
Answer:
Below
Explanation:
18. A nuclear envelope forms around each haploid chromosome set, before cytokinesis occurs, forming two daughter cells from each parent cell, or four haploid daughter cells in total.
19. The primary functions of the nucleus are to store the cell's DNA, maintain its integrity, and facilitate its transcription and replication.
20. True
Many people with mutated alleles that are associated with diseases, including some cancers, do not actually develop the disease. How is this possible?
This is possible due to genetic predisposition which means that there is an increased chance that a person will develop a disease based on their genetic makeup.
What genes are mutated to cause cancer?The most commonly mutated gene in people with cancer is p53 or TP53. More than 50% of cancers involve a missing or damaged p53 gene. Most p53 gene mutations are acquired.
Germline p53 mutations are rare, but patients who carry them are at a higher risk of developing many different types of cancer. When the functions of these genes are mutated in order to express different proteins, the disease or cancer is exposed in the individuals.
Therefore, the influence of genetic mutation with respect to disease is possible due to genetic predisposition which means that there is an increased chance that a person will develop a disease based on their genetic makeup.
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Which sentence from the article supports a MAIN idea from the article?
(A) In modern America, we have access to fresh water every day.
(B) Each time we turn on the tap, plumbing systems bring this important resource into our homes.
(C) The remaining water is salt water, such as what is found in the ocean.
(D) This lack of water affects business and politics in different places.
Answer:
could you upload the article with the question please?
Explanation:
Doctors can perform tests called biopsies to determine whether cells in an area of tissue are cancerous or not. Cells are removed from the area, sometimes by a punch biopsy, and then viewed under a microscope. Based on what you know about the regulation of cell growth, make a list of questions you would ask as you observe the cells. Type your answer here.
Answer:
I would ask these questions to myself;
Is the cell have normal interphase?
Is it use a normal level of glucose or energy?
Is it have any abnormal organelle?
Is the cell divide at the normal rate?
Explanation:
How many molecules of oxygen is needed to undergo cellular respiration?
The entire chemical mechanism for cellular respiration produces six molecules of carbon dioxide (CO2) and six molecules of water from one molecule of glucose (C6H12O6) and six molecules of oxygen (O2) (H2O).
For two glucose molecules to go through cellular respiration, how many oxygen molecules are needed?In particular, the reaction needs 6 moles of oxygen to be completed. For cellular respiration to occur,
How many carbon dioxide molecules are required?According to this chemical equation, when light energy is present, six molecules of carbon dioxide and six molecules of water combine to create one molecule of glucose (C6H12O6) and six molecules of oxygen gas (6O2).
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