Identtidy which among the list represents the hierarchy of muscle structure from the largest unit to the smallest?   A.muscle fiber → myofibril → sarcomere → filaments  B.sarcomere → myofibril → filaments → muscle fiber C.muscle fiber →

Q: List the organs/structures of the female reproductive system and describe their functions

A: Introduction:- The female reproductive system's principal role is to create female egg cells, which…

Q: A number of mutations affect the expression of the lac operon in E. coli. The genotypes of several…

A: Operon is a segment of DNA that carry many genes along with regulatory elements. Lac operon contains…

Q: LEARNING TASK 2: Visiting the Different Kingdoms Kingdom Animalia 1. 2. 3. 4. 5. Plantae 1. 2. 3. 4.…

A: Introduction :- Kingdom Animalia is a term that refers to all animals. The animal kingdom is the…

Q: .

A: There are two types of the T cells based on the glycoprotein attached , these are CD4 cells and the…

Q: 8. A steroid hormone was found to be abnormally high in a person who perennially suffers from…

A: Steroid hormones are mainly released by the adrenal glands present ,above the kidneys. Adrenal…

Q: List and describe two specific differences between meiosis I and meiosis II.

A: Difference between Meiosis I and Meiosis II   S.no Meiosis I Meiosis II 1.  In this, homologous…

Q: What is genetically modified food? How does it negativily affect people's health? why?

A: Introduction :-   Foods derived from genetically modified (GM) species have had their genetic…

Q: What is thr role of kidney in the human body?

A: Introduction :- The kidneys are two bean-shaped organs located on either side of your spine, beneath…

Q: What are the drawbacks of drawing parallels between nonhuman primate behavior and human behavior?

A: Introduction  Primates are eutherian mammals that belong to the Primates taxonomic order. Primates…

Q: How is the small intestine designed to absorb digested food ?

A: Introduction :- The duodenum, jejunum, and ileum are the three sections of the small intestine. It…

Q: What are some potential harms to consider? A study providing a Tai Chi program for older adults in a…

A: Tai Chi is a program specially for the elderly which claims to relieve them from their muscle pain…

Q: Choose a disorder or disease from the list below. Write a synopsis or story of the patient’s life…

A: Diabetes insipidus Diabetes insipidus is a condition in which the body loses too much fluid through…

Q: Girl-student had a cup of sweet tea with the cake after preceding 5-hour break in the food intake.…

A:

Q: 1. Explain the mechanism of thin and thick myofilaments during muscle contractions

A: Introduction The muscles are the components of the body that enable locomotion. The nervous system…

Q: Vegetative propagation in liverworts is possible because of propagules known as gemmae. Select one:…

A: Stomata are tiny openings present on the epidermis of leaves. They help in gaseous exchange during…

Q: Describe the causes of the spread of suburbs, and outlinethe environmental, social, and economic…

A: The fast growth of the geographic extent of cities and towns, also known as sprawl or suburban…

Q: What are the features that distinguish bronchi from bronchioles?

A: The respiratory system is responsible for the gaseous exchange between the outside and inside…

Q: What are the types of tissues found in the urinary system?

A: Also called as renal system.  Urinary system consists of the following: kidneys ureters bladder and…

Q: Which structural component is the main difference between a glycerophospholipid and a sphingolipid?…

A: Sphingolipids are a class of lipids that have a sphingosine backbone - organic aliphatic amino…

Q: Bacterium C Bacterium D Bacterium A Batu B O A Phylogenic Tree is a way to show the relationships…

A: A phylogenetic tree is a diagrammatic representation which evaluates how one species is related to…

Q: Comapare and contrast foregut and hindgut fermentattion and discuss which mode of fermentation do is…

A: Caecum A storage organ in herbivores that allows microorganisms to break down cellulose. Because…

Q: Which is the odd one out ? explain how the rest are connected. primers dNTPs DNA polymerase…

A: The polymerase chain reaction (PCR) is a widely used method for rapidly making millions to billions…

Q: Draw, label and describe the leaf type and leaf arrangement of the species d) Asplenium sp (bird’s…

A: ANSWER;- description of leaf type and leaf arrangement in ferns are the leaves of ferns often called…

Q: 6) Duchenne muscular dystrophy (DMD) is a muscle wasting disease and is an X-linked recessive…

A: 6) Duchenne muscular dystrophy (DMD) is a muscle wasting disease and is an X-linked recessive…

Q: List the types of Premarket Approval (PMA) Supplements. - Explain when each type of PMA Supplement…

A: A PMA supplement is the submission required for a change affecting the safety or effectiveness of…

Q: Breathe deeply and vigorously, with mouth open for 1 ½ to 2 minutes. Is there any great urge to…

A: Hyperventilation defines the rapid breathing/ over breathing, which is mostly caused due to…

Q: 1.  What might be the direct consequence to liverworts if the gene for the expression of elaters is…

A: Liverworts These are land plants that lack a vascular system. As they do not have a vascular system…

Q: Explain the differences in vertebrate appendicular musculature between fishes and tetrapods. How…

A: The evolution of appendicular musculature morphology has been studied, changes in muscular…

Q: Compare and contrast the repair and regeneration of the muscle tissues.

A: Answer :  Repair of muscle tissues :  Repait of muscle tissues is defined as the process of…

Q: Between gene mutation and structural mutations, which of the two types of mutation would likely…

A: Introduction  A mutation is a change in the nucleic acid sequence of an organism's genome, virus…

Q: List one similarity and one difference between chemical and mechanical digestion.

A: Mechanical digeation refers as the physical break down of substances into small particle to more…

Q: Each of the following statements concerning Ascaris lumbricoides is correct* Ascaris lumbricoides…

A: Ascaris lumbricoides  It is a roundworm present in humans. It is one of the species of Ascaris which…

Q: n organ is defined as ____. Choose one: A.two or more tissues organized and capable of carrying out…

A: The levels of organizations in the body vary from the cellular level to complex organ systems. The…

Q: What are the end products / chemicals of fermentation? Give at least five (5) chemicals.

A: A metabolic process through which substances break down into a simpler form is known as…

Q: Which one of the following amino acids is essential for humans? A. Threonine B. Alanine C. Aspartic…

A: Introduction Amino acids are molecules that form proteins when they combine. The building blocks of…

Q: Download the complete nucleotide sequences of the following 11 isolates of Tomato leaf curl virus,…

A: Answer :- 1) 49 sub-clusters or sub grouping of the ToLCV isolates could be generated. 2) After sub…

Q: In what ways are the prokaryotes metabolically diverse? How is this diversity helpful with respect…

A: Introduction Prokaryotes have adapted to live in almost every part of the planet's surface. They can…

Q: To explain: The DNA sequence of a modern bacterium which is believed to be descended from…

A: The endosymbiont theory attempted to explain how eukaryotic cells evolved from prokaryotic cells. It…

Q: 2. Use the plasmid to answer the following questions: [6T] a) Digest the plasmid with EcoRI only and…

A: The restriction enzymes are used to make nicks at certain positions on the DNA. These positions are…

Q: Which of the following will cause local adjustments in an arteriole’s radius and hence vessel…

A: Cardiovascular system in the body consist of mainly three types of blood vessels which includes…

Q: QUESTION: What does the EM demonstrate regarding the air-blood barrier?

A: Capillaries  They are very fine thread like blood vessels that present throughout the body.

Q: Which one of the following amino acids is essential for humans? A. Threonine B. Alanine C. Aspartic…

A: Introduction Amino acids and proteins are the building blocks of life, they are molecules that…

Q: Compare and contrast the viruses that cause influenza and COVID-19

A: Compare :  Both covid 19 and influenza spread from one person to another through close contact.…

Q: a) Microbial products can be classified in three major categories which related to the microorganism…

A: Microbial metabolism defines all the internal bio-chemical pathways, through which microbes obtain…

Q: Describe the life cycle of influenza virus. What function do the neuraminidase and haemagglutinin…

A: Introduction Influenza is a virus that affects our respiratory system, which includes our nose,…

Q: Based on the figure of chordate phylogeny, which of the following are examples of homoplasies?

A: Homoplasy is an evolutionary phenomenon in which an organism has similar structures from different…

Q: Discuss how the transition from water to land of vertebrates gradually changed the respiratory…

A: The respiratory system is the organ system that helps exchange gases between tissues and organs.…

Q: Given the pedigree below: Is the trait dominant or recessive? What are the most likely genotypes of…

A: The pedigree analysis shows the transmission of a genetic trait over generations in a family.

Q: c. What would be the consequence for an "a" cell that experienced an inactivating mutation in the…

A: ANSWER;-

Q: How does the defence system avoid attacking self-antigens?

A: INTRODUCTION Immune system This is a system including some processes and organs that helps us to…

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.