Q: What happens when the pressure in the ventricles becomes lower than the pressure in the atria?…
A: Introduction :- A ventricle is one of two big chambers towards the bottom of the heart that collect…
Q: find the connection among the words below and choose the letter of the word which is different 1.…
A: PCR(polymerase chain reaction) is a molecular method to make multiple copies(amplify) of a small…
Q: CHOOSE THE RIGHT ANSWER :)) (MULTIPLE CHOICE) 1. Animals that rely much on the external heat sources…
A: In the face of frequent internal and external changes, homeostasis is a multiple cyclical processes…
Q: In Methicillin resistant bacteria, what have the bacteria developed that allows them to stay alive…
A: Introduction :- Staphylococcus aureus, is a common form of bacterium that can be detected on the…
Q: horned bull is mated to a hornless cow that is heterozygous for the condition. What kind of…
A: Even when heterozygous with a recessive allele, a dominant allele expresses its phenotypic effect.…
Q: You see a ground squirrel on a prairie in the early spring. You note that he can run quickly and has…
A: Q. - You see a ground squirrel on a prairie in the early spring. You note that he can run quickly…
Q: why thymus is important during early childhood in immune system development?
A: Immunity and immune response Immunity is defined as the ability of the body to fight disease or…
Q: 1. Discuss the expected changes in biodiversity as the stages of succession progress as shown in the…
A: Introduction The process of defining how the structure of a biological community (that is, an…
Q: Down Syndrome (trisomy 21) is caused by an error in meiosis which results in the presence of three…
A: Meiosis and mitosis Meiosis is the reductional division in which the parental cells divide to form a…
Q: Compare and contrast the following in 2-3 sentences: 1. Single circulatory pathway and double…
A: 1. Single circulatory pathway and double circulatory pathway Human circulatory system also called…
Q: Comment on the following (1922) quote fromWarren Lewis, who was one of the pioneers of cell…
A: Introduction A cell is a cytoplasmic mass that is externally bound by a cell membrane. Cells, which…
Q: 25) Identify the most correct choice: Oa) ribosomes are the membrane bound organelles responsible…
A: Introduction :- Gene therapy is the process of changing the genes in your body's cells in order to…
Q: 3. Imagine that you inoculated 5 tubes of BGLB for each of three dilutions, and found a combination…
A: MPN It is the estimation of number of organism group in a unite volume of sample.
Q: To explain: The term sexual selection.
A: Introduction: Sexual selection is a method of characteristic choice where individuals from one…
Q: occasionally, an effor occurs during DNA replication that changes the nucleotide sequence. Aven that…
A: The process by which DNA is copied to RNA is called transcription, and that by which RNA is used to…
Q: Calculate the amount of energy a cell could get from methanogenesis (using H2 as an electron donor…
A: Methanogenesis, also known as biomethanation, is the process by which methane is produced by…
Q: Briefly describe 4 differences between prokaryotes and eukaryotes
A: The term “prokaryote” is derived from the Greek word “pro“, (meaning: before) and “karyon” (meaning:…
Q: To determine: The reason, if a population grows large again after a bottleneck, then why the genetic…
A: The term "evolution" was coined by a geneticist. A change in the allele frequencies of a gene pool…
Q: To describe: The reason that the selection of phenotypes can affect the evolution of genotypes.
A: The phenotype is the external appearance of the organism and the genotype is the allelic composition…
Q: 2 Phloem 4. Xylem 3. LEG DEPARTA vein 5. CON among many vertebrates a. Transports water and minerals…
A: Q a. Transports water and minerals from roots b. Transports sugar from leaves c. Transports or…
Q: Organ Excretory/ Urinary System Circulatory Respiratory Immune Function System System System AS…
A: Q. Functions : a: Allows the passageway of air to the lungs b. Pumps blood to the different parts…
Q: What is clonal selection hypothesis and use the autoimmune response and immunological memory to…
A: Clone selection hypothesis explains that there are numerous lymphocytes in the body and each of them…
Q: What are some of the scientific and ethical implications of being able to edit the genome with the…
A: Genome editing is a group of technologies to modify genes of organisms and make specific changes in…
Q: why some ecosystems are more productive than others.
A: An ecosystem is a geographical area where the plants, animals, and other species, as well as weather…
Q: Based on the Mammal Tree, which of the following mammals is the fruit bat most closely related to?…
A: Humans are different from other animals in phylogeny in many characteristics such as bipedalism, the…
Q: Describe how each of the following levels of organization contribute to homeostasis of cellular ATP…
A: Homeostasis has turned to be the central unifying idea of physiology and is characterized as an…
Q: Which of the following biological factors (see biotic factors) were observed to have affected your…
A: No matter how large or small an ecosystem is, it is essential to all life. Ecosystems rely on all of…
Q: Find the connection among the words below and choose the letter of the word which is different. A.…
A: Ge electrophoresis Gel electrophoresis is a molecular technique used to separate the DNA fragments…
Q: Discuss the place in therapy of beta 2 agonists in asthma and describe their mode of action.
A: Beta 2 agonists therapy in asthma treatment.
Q: Which pair of structures is not visible from this view?
A: Introduction:- The brain is a complicated organ that regulates our body's thought, memory, emotion,…
Q: Bones can be in different shapes and sizes: There are long bones, short bones, flat bones and…
A: Bones A bone is a rigid organ that makes up the skeleton of vertebrates. These protect various body…
Q: Label this light microscopy image of cells in a seminiferous tubu Blood vessel Connective tissue…
A: A seminiferous tubule has two main types of cells in the human male testes.
Q: Identify and label the different structures of the bronchioles.
A: Introduction Bronchioles:- These are air passages inside the lungs that branch off like tree limbs…
Q: To determine: The reason that the alleles associated with antibiotic resistance present in the…
A: Antibiotics are potent germ-fighting agents that should be used with caution and caution. The term…
Q: This depolarizes the cell membrane: inflow of chloride inflow of sodium outflow of…
A: Depolarisation In biology, depolarisation is the phenomenon where membrane electric volts in become…
Q: please help solve
A: CRISPR-Cas system is the naturally present defense system in the prokaryotes.
Q: Which of the following processes would happen on a large scale during starvation (and not in a…
A: Introduction Starvation is defined as a severe deficiency in caloric energy intake that falls below…
Q: A biology student estimates a population of snails in a local field using randomly selected eight…
A: You may get density, distribution, and number using quadrat sampling. A)
Q: Name three types of animals that existed during the mesozoic era
A: More than 180 million years passed through the Mesozoic Era. Many modern plants, invertebrates, and…
Q: malignant melanoma are analyzed and found to have an elevated ability to bind to laminin; they also…
A: NOTE: since you have posted multiple questions so we will be solving the first three for you. As per…
Q: What are the three types of tissues present (in different proportion) in most organs of the…
A: The digestion related system has three fundamental role connecting with food: processing of food,…
Q: Draw, or fully describe all parts of the CRISPR Cas complex as it identifies and then cuts DNA.…
A: The CRISPR-cas system is an adaptive immune system of bacteria and archaea, which protects the…
Q: 10. A 55-year-old woman presented to the hospital with complaints of muscle weakness, fatigue, night…
A: Osteoporosis causes bones to weaken and become brittle — so fragile that a fall or even slight…
Q: Describes two ways that influenza virus changes every year , requiring development of new vaccines?
A: Introduction Influenza is a common viral infection that can be potentially lethal, particularly in…
Q: What is your own understanding of this classification scheme with four primary patterns of MS? •…
A: Multiple Sclerosis (MS) is a disease in which the immune system eats away at the protective…
Q: Question 8 Use the following graph of two theoretical populations (species A and B) to answer the…
A: ANSWER;- 1a) Interdependent hunter prey relationship, which is conversely related.
Q: Directions: Read the situation and answer the questions that follow. Write your answers on a…
A:
Q: What is the role of air pressure in the exchange of gases between the lungs and the environment?
A: respiration is the movement of oxygen from the outside environment to the cells within tissues, and…
Q: What is the difference between speed and velocity? What is the difference between instantaneous…
A:
Q: Use the dichotomous key for this question. You have determined your unknown organism to be…
A: Pseudomonas aeruginosa is a gram-negative aerobic bacteria. It can cause various infectious diseases…
Step by step
Solved in 2 steps
- Two cells can be operated in such a way that leads to a common continuous plasma membrane of both.a) Trueb) FalseCompared with the inside of the resting plasma membrane, the outside surface of the membrane isa. positively charged.b. electrically neutral.c. negatively charged.d. continuously reversing, so that it is positive one second and negative the next.e. negatively charged whenever the sodium-potassium pump isoperatingwhich surface to volume ratio woud be the most efficient for transmembrane transport of substance in cells
- Using the answer code on the right, indicate which membrane component is responsible for the function in question: 1. channel formation____________________________________ (a) lipid bilayer 2. barrier to passage of water- __________________ (b) proteins soluble substances ____________________________________ (c) carbohydrates 3. receptor sites 4. membrane fluidity 5. recognition of self 6. membrane-bound enzymes 7. structural boundary 8. carriersThe plasma membrane is an effective barrier to molecularmovement across it, yet many substances do enter and leave thecell. Explain the mechanisms through which this is accomplished.How exactly does a cell's plasma membrane work? I have a vague understanding of it, but I would like a better explanation. Thanks.
- 1. large particles including aggregates of macromolecules are ingested by some cells through phagocytosis?(true or false) 2. receptor-mediated endocytosis begins with binding of specific molecules to their receptors on the outersurface of the plasmamembrane (true or false)Contrast the plasma membrane characteristics of organisms in warm tropical regions to those living in the coldest places on Earth. Explain why these adjustments in plasma membrane character are made depending on the temperature of where an organism lives.Why is the Donnan membrane phenomenon important for the homeostasis of the cell?
- 33. Which statements concerning passive and active transport are correct? A. Both passive and active transport requires cell energy B. Passive requires cell energy while active transport does not C. Active transport requires cell energy while passive does not D. Neither passive nor active transport requires cell energyexplain elaborately about the plasma membrane acts as a selective gatekeeper, the importance of it and function of being a gatekeeper of the cells (300 to 500 words)Dane is doing an experiment by using a dialyzing membrane as a model for cell membrane to observe the movement of the substances like glucose in before and after fluids using benedict's test. BEFORE: Fluid in the beaker blue (absence of glucose) Fluid in the bag orange (presence of glucose) AFTER Fluid in the beaker orange (presence of glucose) Fluid in the bag orange (presence of glucose) Was there a movement of glucose across the artificial membrane? Why or why not?