The warmer global climate and shrinking of the tropical rainforest was responsible for the emigration from the continent of Africa to Europe and Asia.
What is Emigration?This involves the movement of people to another country and usually settle there to earn a living or for other purposes.
Europe and Asia are more favorable to live due to the abundant resources available which was the reason for the emigration and was common with the early Miocene hominoids.
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How are the processes of asexual reproduction and sexual reproduction different? Select three options
O In both processes, all offspring have identical DNA.
0 They involve a different number of parents.
O Only one process involves sperm and eggs.
U Only one process involves meiosis.
D Only one process involves cell division.
Answer:
0 They involve a different number of parents.
O Only one process involves sperm and eggs.
0 Only one process involves meiosis.
Explanation:
I’m 99% sure these are correct. I hope this helps! Have a great day :)
Question 7 of 25 Which of the following best describes a community?
A. An interacting group of populations that occupy the same area
B. Alhof the individuals of the same species that inhabit an area
(.)
C. A group of organisms that interact with nonliving parts of the
environment
D. A group of organisms that interbreed and have common
characteristics
Answer:
A - An interacting group of populations that occupy the same area.
What best summarizes the differences between ancient and modern horses?
A cell that is normally found inside freshwater environment mostly water is placed in a container and surrounded by a salt water solution which of the following will most likely happen to the cell?
The most likely happen to the cell is It will lose water and shrink.option A is correct option.
What do you mean by the hypertonic solution?A hypertonic solution is one that has dissolved particles than normal cells and blood do, including salt
A freshwater plant cell will lose water and shrink if it is submerged in salt water for an hour.
The missing option in query is given below:
It will lose water and shrink.
It will reach a state of equilibrium.
It will use energy and pump extra salt out of the cell.
It will swell and burst.
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What are nucleosome remodelling complexes and describe their function (s).
Answer:
Explanation:
Chromosomal DNA is packaged inside microscopic nuclei with the help of histones. These are positively-charged proteins that strongly adhere to negatively-charged DNA and form complexes called nucleosomes. ... Nucleosomes fold up to form a 30-nanometer chromatin fiber, which forms loops averaging 300 nanometers in length.
What is the impact on human health as we try to stay ahead of the evolutionary process?
(Hint: Consider diagnoses of new illnesses, research and development of medicines, and biological factors like antibiotic resistance).
Staying ahead of human evolution has provided more harm than good impact on human health. According to an evolutionary perspective, several genetic variations interact with surroundings and other genes during development to affect the phenotypes of diseases.
Evolution is a set of intricate mechanisms through which populations of organisms change over time and is regarded by scientists as the fundamental, unifying notion of biology. Genetic adaptations brought about by evolution enable organisms to endure, remain healthy, and flourish.]Often sparked by war and natural disasters, public health evolved via trial and error and the expansion of scientific medical knowledge. Specifically, urbanization and social changes, as well as other aspects of the growth of community life, increased the demand for organized health protectionHence , The process of evolution has significantly impacted human health. Comparing our new environment to the ones we developed from aids in understanding
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With the development of air flight and mass transit, humans are able to move very rapidly around the world.
Which of the following is a possible consequence of increased human travel?
Choose 1 answer:
Explanation:
human are able to move very rapidly around the world because of good atmosphere if there is more powerful population
Answer: CORRECT (SELECTED)
Exotic species are introduced to new areas where they compete with native species.
Explanation:
Introduced, exotic species can outcompete native species and alter the biodiversity in that area.
What is a natural, nonspecific immune response, but it is part of the body's second line of defense?
The adaptive immune response is the second line of defense against non-self pathogens. Adaptive immunity, also known as acquired immunity or specific immunity, is found only in vertebrates.
What is second line of defense?Nonspecific resistance, which destroys invaders without targeting specific individuals, is the second line of defense: phagocytic cells ingest and destroy all microbes that enter body tissues.
The adaptive immune response is the body's second line of defense against non-self pathogens. Adaptive immunity, also known as acquired immunity or specific immunity, is found only in vertebrates.
Thus, adaptive immune system is a natural, nonspecific immune response, but it is part of the body's second line of defense.
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Answer:
it should be passive immunity
Explanation:
1.Name the tissue responsible for;
a) Binding other tissues and organs
Answer:
Connective tissue
Explanation:
A type of tissue found in animals whose main function is to bind, support, and anchor the body.
What term is used for species that are at serious risk of extinction?
Answer:
Endangered species
Using a microscope, you observe an amoeba moving toward a food source. This is an example of;
Group of answer choices
A. Reproduction
B. Adherence
C. Chemotaxis
D. Locomotion
E. Metabolism
Answer:
locomotion
Explanation:
The movement of amoeba towards a source of food is an example of chemotaxis.
In the presence of a chemical stimulus, a cell or a unicellular organism moves in the direction of the chemical stimulusThis phenomenon is called chemotaxisCells are able to sense changes in their environment such as changes in pH, temperature and the presence of chemicalsChemotaxis is used as a foraging mechanism in many unicellular organisms such as amoeba and paramoeciumAnother example of chemotaxis is the movement of insects towards nectar-bearing flowersAmoebae exhibit chemotaxis when they move toward their food source.
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state the name for chemicals that are secreted by glands into the blood and that affect organs elsewhere in the body
The name of chemicals that are secreted by glands into the blood and those that affect organs elsewhere in the body are known as Hormones.
What is Gland?A Gland may be defined as an organ in the human or animal body that perspires certain chemical substances for usefulness in the body or for liberation into the surroundings.
The endocrine glands are responsible for the synthesis of such chemical substances into specific body parts and organs and pass them directly into the bloodstream. These chemical messengers are thought to be the agents of communication between one body part and another.
Therefore, it is well described above.
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H.M. maintained ______ memory as he was able to perform better each time he did the mirror-tracing task.
A) nondeclarative
B) declarative
C) priming
D) conditioning
E) episodic
If you have 100 apples and you take 30 how many do you have?
Answer:
100 is the answer.........
Which phase of the cell cycle directly follows prophase?
OA. Interphase
OB. Metaphase
OC. Anaphase
OD. Telophase
The cell cycle directly follows prophase is metaphase.
What is Cell cycle?A cell's growth and division are accompanied by a sequence of processes known as a cell cycle. A cell spends the majority of its time in what is known as interphase, where it develops, duplicates its chromosomes, and gets ready to divide.
The cell then exits interphase, goes through mitosis, and finishes dividing. Each of the resultant cells, referred to as daughter cells, enters its own interphase to start a fresh cycle of the cell.
The procedure through which cells multiply and divide into two new cells as the cell cycle. G1, S, G2, and M are the phases of the cell cycle, respectively. Cells are getting ready to divide at the G1 stage.
Therefore, The cell cycle directly follows prophase is metaphase.
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Like DNA, RNA contains four nitrogenous bases. Three of them are the same as those found in DNA. The one that is different is called ________
The five-carbon sugar in RNA is called ________
Answer:
RNA has for nitrogenous bases out of which three are the same as DNA. The bases common to both DNA and RNA are Adenine (A), Guanine (G) and Cytosine (C). The one that is different is called Uracil (U).The five carbon sugar in RNA is called Ribose sugar.Explanation:
DNA consist of four bases that are A,T,C and G. Similarly, RNA also consists of four bases that are A,U,C and G.
Thymine (T) is not present in RNA, instead of it, RNA has Uracil (U) which binds with Adenine (A) by two hydrogen bonds.
The five-carbon sugar that is present in RNA is ribose and that present in DNA is deoxy-ribose. Ribose and deoxy-ribose differ at second carbon. Ribose has an OH at second carbon while in deoxy-ribose, O is missing at second carbon and it has only H.
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which statement of osmosis is correct?
Answer:
The process in which the water molecule moves from a region of higher solvent concentration to the region of lower solvent concentration.
The energy which drives this process is called osmotic pressure.
the diagram below represents two cells, x and y which statement is correct concerning the structure labeled A ?
The diagram below (attached image) represents two cells, X and Y.
Which statement is correct concerning the structure labeled A?
A) It is involved in cell communication in cell X but not in cell y.
B) It represents a cell wall in cell X and the cell membrane in cell y.
C) It prevents the absorption of CO2 in cell x and O2 and cell y.
D) It aids in the removal of metabolic waste in both cell X and Y
Cell membrane accomplishes several functions, among them, the removal of cell wastes. Option D. It aids in the removal of metabolic waste in both cell X and Y.
What is the cell membrane?
The cell membrane is a barrier that surrounds the cell content and isolates it from the extracellular space. It is composed of two lipidic layers, proteins, and glucans incrusted in between.
The cell membrane accomplishes many different functions. Among them, we can mention,
Isolation ⇒ It separates the intracellular content from the extracellular space.Protection ⇒ It protects the interior of the cell from any damaging external factor that might affect its correct functioning.Transport ⇒ It allows the selective pass of certain molecules or ions.Substances interchange
⇒ Passive transport → Simple diffusion → through lipids
→ Facilitated diffusion → Assisted by channel
proteins
→ Does not need energy
→ Depends on the molecule size, the concentration
at each side of the membrane, and the charge of
the ions.
→ Occurs in favor of the electrochemical gradient
⇒ Active transport → It does the energy to occur
→ Mediated by carrier proteins
→ Transport big-sized molecules
→ Against the electrochemical gradient
⇒ Endocytosis/Exocytosis → Active transport mediated by vesicles.
Communication ⇒ By emission and reception of substances and molecules, the cell can communicate with other cells. This process is always mediated by membranes and their transport proteins or receptor proteins.
In the exposed example X cell represents an animal cell, and Y cell is a plant cell.
Both the animal and plant cells are eukaryotic. They carry their genetic material in the nucleus and mitochondria. Organelles are located in the cytosol, and both of them are surrounded by a protector cell membrane.
Among the options, the correct one is D. It aids in the removal of metabolic waste in both cell X and Y
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Which organisms ) contain this membrane bound organelle ?
Answer:
eukaryotic organisms contain this membrane bound organelles.
Which two body parts are composed of tissue that is made up of muscle cells working together?
witchh component is released from the active site of an enzyme during a chemical reaction
Options:
A. reactant
B. product
C. substrate
D. protein
Answer:
The catalyzation of a chemical reaction is greatly aided by the enzyme.
What are enzymes?Proteins called enzymes aid in accelerating our bodies' chemical reactions, or metabolism. Some compounds are created, while others are broken down. Enzymes are a component of all life. Enzymes are created by our bodies spontaneously.
The structure of the enzyme has an active site where a substrate can bind. The substrate of a complimentary form can approach and bind to the active site because it has a certain shape. Once the substrate is attached to the enzyme's active site, the reaction begins, and a product is created. At the conclusion of the process, the product is generated, released from the active site, and the enzyme is unaltered.
The product that is released from the active site is the appropriate response.
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There are more hydrogen atoms in living organisms than any other atom, but oxygen is more abundant in terms of mass.
Hydrogen is more in number but less than mass from oxygen because of its lower mass.
Why oxygen is more than hydrogen in term of mass?There are more hydrogen atoms in living organisms than any other atom, but oxygen is more abundant in terms of mass because the Hydrogen atoms have a lower mass than oxygen atoms so in terms of mass, oxygen is ahead of hydrogen atom.
So we can conclude that hydrogen is more in number but less than mass from oxygen because of its lower mass.
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question in the picture
does this picture on the foot look like it might be gangrene?
maybe but it could also be planter psoriasis.
but for gangrene, the surface of your skin may look normal at first. As the condition worsens, the skin may become pale and then turn other colours such as grey or purplish red. The skin may look bubbly.
Kathy Morningside is a 55-year-old woman who has had spells of gastroin- testinal problems over the years (dyspepsia), but a formal diagnosis has never been conclusive. During the past four months, she has had a history of vomiting after some meals and she has lost about 5 kg over this time. Mrs Morningside, together with an old school chum, went to London for a weekend theatre break to see Les Miserables. On the Friday evening, she began to feel unwell, but put it down to her fear of flying. They went to the theatre on the Saturday evening and followed this with a light opera supper at a nearby restaurant. Mrs Morningside suffered a haematemesis and was rushed to hospital with massive bleeding. Her condition settled and follow- ing overnight rehydration, she returned to her home in Newcastle where she was examined by a gastrointestinal consultant. The consultant noted that Mrs Morningside was pale and tachycardic. Her blood pressure was 130/90 mmHg. Rectal examination revealed frank melaena. He attributed the bleed to chronic peptic ulceration, probably as a consequence of long-term use of non-specific anti-inflammatory drugs. He considers her to be at high risk of re-bleeding and may contemplate partial gastrectomy when her nutritional intake has improved. The consultant refers Mrs Morningside to the dietitian as he is concerned about her overall nutritional status. She is currently anaemic (frank iron and possibly megaloblastic/pernicious anaemia). (1) Explain the approaches that may be taken to assess this patient's nutri- tional and dietary status. (2) Consider the dietary assessment more carefully. What may be the prin- cipal focus of the interview with the client? What advance preparation might assist you in the conduct of the assessment interview?
In order to assess the nutritional status of the patient, the nurse needs to understand the anthropometric measurements of the patient by:
The physical examination helps to understand the physical appearance of the patient and to find out the BMI.Monitoring the intake and output chart helps to understand the nutritional status of the patient.Monitoring the weight helps to understand the accurate weight loss of the patient.How to depict the information?The patient is having chronic peptic ulceration so, the focus of the dieticians during the interview must be the collection of history about the previous intake of the anti-inflammatory medications.
In order to confirm it, the dietician needs to ask the patient about the past medical condition and treatments.
As an advance preparation, the dieticians need to study the case sheets of the patient to get an idea about the patient prior to the interview session.
The principal focus of the interview with the client will be the food that the client normally eats and previous treatment regarding the illness.
The advance preparation that might assist in the conduct of the assessment interview is to read extensively on the disease in order to have more information about it.
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PLEASE HELP :)
Describe how flowering plants reproduce.
How do flowers help other organisms in our environment?
Which parts of a plant are responsible for reproduction? Describe the role that each of them will play.
Describe what occurs during the process of seed development.
Answer:
Pollen is carried by insects or blown by the wind from one flower to another. This process is called pollination. Pollen reaches the new flower and travels to the ovary where it fertilises egg cells (ovules) to make seeds. This is fertilisation.So, in providing the seeds that make it possible to grow more plants, flowers benefit the environment by creating more carbon dioxide-absorbing and oxygen-radiating plants. Flowers also play a vital role in cleaning up other parts of our world.Flowering plants reproduce sexually through a process called pollination. The flowers contain male sex organs called stamens and female sex organs called pistils. The anther is the part of the stamen that contains pollen. This pollen needs to be moved to a part of the pistil called the stigma.In the process of seed germination, water is absorbed by the embryo, which results in the rehydration and expansion of the cells. Shortly after the beginning of water uptake, or imbibition, the rate of respiration increases, and various metabolic processes, suspended or much reduced during dormancy, resume.hy yaar hopE it helpZ u xd ~
Which hormone allows a woman to produce milk after she gives birth?
1Thyroid-stimulating hormone
2Follicle-stimulating hormone
3Luteinizing hormone
4Prolactin
Prolactin hormone allows a woman to produce milk after she gives birth. Thus, the correct option is D.
What is lactation?Lactation is the process of producing and releasing milk from the mammary glands in breasts. Lactation begins in pregnancy when hormonal changes signal the mammary glands to make milk in preparation for the birth of baby.
It’s also possible to induce lactation without a pregnancy using the same hormones that your body makes during pregnancy. Lactation ends once your body stops producing milk.
Milk ducts increase in size and number when levels of estrogen and progesterone rise. The result is a fuller breast. The mammary glands start to get ready to produce milk.
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I need help with this question please
The presence of a tumor in the larynx is known as Laryngeal cancer. It may affect the process of breathing, speaking, and swallowing of the food down to the esophagus.
What are the properties of a cancerous cell?Cancerous cells have numerous properties. Some of them are as follows:
It is an undifferentiated cell that continues uncontrolled rapid division and proliferation. It is immortal which means allows the inhibition of apoptosis. It follows the process of metastasis.Laryngeal cancer disturbs the passage of air in and out of the lungs through the larynx and trachea. The process of migration of cancerous cells from the initial origin to the other connections may describe as metastasis.
Laryngeal cancer is caused primarily by smoking, drinking alcohol, and other age-related issues. The symptoms of this cancer may include voice changes, sore throat, or a cough that resides long away.
Therefore, it is well described above.
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Why electron microscope cannot be used to study life processe?
Answer and Explanation:
Electron microscopes are the most powerful types of microscopes, capable of distinguishing even individual atoms. However, these microscopes can't be used to image living cells because the electrons destroy the samples.
Rich has been a therapist for over fifteen years and most of that time he has used an assessment tool that uses random pictures to provoke an immediate response. Rich is looking to determine anxiety and depression in individuals, so he utilized the ________ for assessment.
Answer:
Rorschach Inkblot Test
Explanation:
yes
Rich is looking to determine anxiety and depression in individuals, so he utilized the Rorschach Inkblot Test for assessment.
What is Rorschach Inkblot Test?Rorschach Inkblot Test may be defined as a type of test that utilizes some sort of images in inkblots in which some of them are black or gray and demonstrate the pattern of thought disorders like anxiety, depression, etc. in the case of schizophrenia.
This test is also utilized to estimate the personality of an individual, emotional disorders, and level of intelligence.
Therefore, it is well described above.
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