How do B and T cells differ with respect to antigens that they bind?

Q: Choose between osomosis, active transport, facilitated diffusion, simple diffusion, endo-exo cytosin...

A: The two major types of cell transport include passive transport and active transport. Passive transp...

Q: An mRNA transcript is listed below and contains both start and termination codons. Assume that the i...

A: mRNA(messenger RNA) is a type of RNA(ribonucleic acid) that carries complementary sequence transcrib...

Q: Work through the Punnett square problems completely on a separate sheet of paper. Take a picture of ...

A: Crossing two plants are called hybridization. the cross between a true-breeding purple flower plant ...

Q: The Hamilton-Norwood scale is used to classify the stages of what male problem?

A: Hamilton-Norwood scale was first discovered by James Hamilton in 1950s and it was further improved b...

Q: Compare and contrast how natural- and humaninduced processes have influenced global climate change.

A: Introduction: Climate change is a major concern for every nation as it is affecting our lives in man...

Q: what is the transmembrane protein responsible for ATP synthesis during both photosynthesis and cellu...

A: ATP provides energy to drive various processes in living systems like nerve impulse propagation, mus...

Q: Activation of the sympathetic nervous system causes: a. increased blood flow into the skin b. a decr...

A: The autonomic nervous system (ANS) is the part of the peripheral nervous system that acts as a contr...

Q: Mesohyl contains: a. a polysaccharide gel and dead cells. b. a collagen-like gel and suspended cells...

A: Step 1 The invertebrates do not contain bony structures, such as cranium and vertebrae. The simplest...

Q: Use an illustration to show the differences between mitosis and meiosis. Explain three processes tha...

A: Mitosis is a process where a single cell divides into two identical daughter cells (cell division). ...

Q: Through which urine passes on its way to the outside of the body starting with the medulla of the ki...

A: The kidneys filter unwanted substances from the blood and produce urine to excrete them. There are t...

Q: A tumor cannot grow to be very large without the development of new blood vessels (angiogenesis) to ...

A: Cancer is the disease that causes uncontrolled division of cells. The tumor formed may be malignant ...

Q: What are the seven characteristics that Mendel observed in the pea plants and why were these choices...

A: The genes controlling the seven pea characters studied by Mendel are now known to be located on 4 di...

Q: A monoclonal antibody molecule has only one Fab domain, while a polyclonal antibody has two Fab doma...

A: An Antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein produced mainly...

Q: Where are parasympathetic preganglionic cell bodies located? a. cerebellum b. brainstem c. dorsal ro...

A: The autonomic nervous system (ANS) is the part of the peripheral nervous system that acts as a contr...

Q: Based on how reptiles thermoregulate, which climates would you predict to have the highest reptile p...

A: There is a huge diversity of organisms in the Kingdom Animalia. The organism ranges from simple, non...

Q: The purpose of using soap in the DNA extraction activity using frozen strawberries is to

A: A gene is an area of DNA molecule or polymer of amino acid that encodes function. A chromosome inclu...

Q: Match the following epithella with the correct histological Illustration below A. Stratified columna...

A: A cell is a structural and functional unit of life. The structure and function of a cell have been s...

Q: In Drosophila, a heterozygous female for the X-linkedrecessive traits a, b, and c was crossed to a m...

A: X-linked recessive inheritance is a genetic condition that can be passed from parent to child throug...

Q: Match the following terms with the correct description G, phase A During this phase, the cell divide...

A: In G0 stage the cells exist in quiescent stage.  It can also be called as extended G1 phase. In this...

Q: An unidentified animal is noted to have simple tissues and possesses specialized cells called nemato...

A: Nematocyst  are minute, elongated, or spherical capsule produced exclusively by members of the phylu...

Q: Explain how the hypothalamus oversees and controls endocrine system function of the posterior pituit...

A: The lower region of the diencephalon consists of the hypothalamus. The hypothalamus is present just ...

Q: Let's say that in a particular animal a series of heat-releasing reactions occur in rapid succession...

A: Exothermic reactions occurring inside the body release the heat and endothermic reactions absorb ene...

Q: Use the data on the table to calculate the percentage of total annual radiation from all sources tha...

A: Total Naturally occurring radiation = 294 Total artificial radiation = 65 Grand total = 359 To solve...

Q: gene flow makes populations more genetically similar ?True 0r False

A: Gene flow is a chance event in which there is transfer of genetic material from one population to an...

Q: Arthritis affects women than men and the most common form of arthritis is Select one: a. less; gout ...

A: A group of cells having a similar structure, origin, and function is tissue. Animal tissues can be d...

Q: What is the function of the external acoustic meatus?

A: External auditory canal, also called external acoustic meatus is a 2.5 mm cylindrical canal, partly ...

Q: for people over of age. Obesity the stress on the knees and is a common cause of

A: Obesity is one of the major health epidemics that human being struggle to deal with it. Obesity is a...

Q: Which lab technique can you use to best answer these questions? How movable are membrane proteins?...

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for...

Q: Hemophilia in the Russian royal family was caused by defective protein involved in blood clotting (f...

A: Hemophilia -- It occurs in about 1 of every 5000 males .     Usually a inherited disorder in which t...

Q: Virtually all eukayotic organisms have this organelle suggesting they evolved in an aerobic world. ...

A: Cell is the basic structural, functional, and biological unit of all known organisms. The cell organ...

Q: Compare and contrast performance of the latest natural membrane condom regarding birth control in ST...

A: Answer- The use of condoms is essential birth control method and also prevents various types of STDs...

Q: According to purpose, exploratory research focuses on expanding knowledge on current issues through ...

A: Research is a systematic inquiry to describe, explain, predict, and control the observed phenomenon....

Q: Food plants or crops, which have been genetically altered, are known as genetically modified foods. ...

A:  Genetically modified plants are those plants in which their DNA has been modified using genetic eng...

Q: Which one is at the chemical level, considered non-living? A) lymph B) blood C) basophil D) valv...

A: Studies suggest that , with in heart the  aortic valve lies in a unique hemodynamic environment, one...

Immunology

Immunology is the division of science involved with the immune reactions occurring in living organisms. The organisms are accustomed to evolving internal defense mechanisms to evade the invasion of microbial pathogens. Diverse cells are connected with stimulating the immune responses, which produce inhospitable conditions to the microbes prompting their lysis and thus inhibits the multiplication of the pathogens. The immune system can distinguish the pathogens through the aid of cellular intercommunication and launch responses to destroy them.