science

Q: Vibrio cholerae can be cultured on Thiosulfate-Citrate-Bile salts-Sucrose agar (TCBS). Enterobacteri...

A: The microorganism is visible under the microscope only. This exists in a single-celled form or a col...

Q: Observe the bones in Figure (a) and (b). Identify the child’s hand and the adult’s hand. (a) _______...

A: a. Child's hand b. Adult's hand

Q: Describe the anatomical relationships between the hypothalamusand the pituitary gland?

A: The pituitary gland is also termed as hypophysis that means to grow underneath. This gland is locate...

Q: Why does genetic variation make it possbile for changes in populations to occur through natural sele...

A: Genetic variation refers to the differences in population. Natural selection is a process in which l...

Q: How would you find out if the causes of variations is genetic or environmental?

A: Variations are responsible for helping a species to survive by causing the organisms of a species to...

Q: Mr. Patrick, a retired teacher had been recording consistent increase in blood pressure for the past...

A: Blood pressure id defined as the pressure of circulating blood against the walls of blood vessels.

Q: The power stroke Multiple Choice Positions the myosin heads in their high-energy pos Pulls the thin ...

A: power stroke of muscle contraction -It is the pivoting of myosin heads to pull filament toward the m...

Q: What is the definition of a map unit?   A. The frequency of recombination between two or more ...

A: A unit of measurement of genetic map is known as map unit or Centimorgan (cM). 

Q: A. How does the structure of a Barr body affect gene expression? B. Color-blindness is an X-linked r...

A: Color blindness is characterized by an inability to differentiate between different shades of colors...

Q: What are phase changes in plant development? What two groups of genes control the formation of the f...

A: Plant growth and development is the progression from earlier to later stages in maturation. e.g a fe...

Q: To test for statistical significance of the association of a SNP with a trait, the null hypothesis i...

A: When a single nucleotide (adenine, thymine, cytosine, or guanine) in the genome sequence is changed,...

Q: Describe Redi’s work and why it was important. 2. Describe Louis Pasteur’s work and why it was impor...

A: According to bartleby guidelines, when multiple questions are posted we are allowed to answer the fi...

Q: In the collecting duct the secretion of K+ is regulated and secreted by what causing a response to w...

A: The kidneys are a pair of organs that are found on either side of the spine, the kidneys are two bea...

Q: Mitosis and cytoplasmic division function in ______ a. asexual reproduction of unicellular eukaryote...

A: Cell cycle is a series of changes occur in a newly divided cell through which it duplicates its geno...

Q: Differentiate between primary hyperparathyroidism and secondaryhyperparathyroidism?

A: Parathyroid gland is a gland of the endocrine system located in the neck just behind the thyroid gla...

Q: Which kind of drug would have anti-anxiety effects?a. nicotinic agonistb. anticholinergicc. muscarin...

A: Introduction: Medication or other substance which has a physiological impact when ingested or in any...

Q: What are the different types of RNA?and where in cells these synthesized ?

A: Step 1 RNA or ribonucleic acid is a single-stranded mixed polymer of four types of ribonucleotides. ...

Q: What are the two blood vessels that provide the blood to the heart?

A: A human heart is 4 chambered mascular organ.  Both atria and ventricles are 2 in number. Along with ...

Q: secretion from _would cease if the anterior pituitary no longer secreted ACTH. Multiple Choice calci...

A: The chemical coordination in the animals takes place by endocrine glands. The secretion from these g...

Q: 1. Abnormal curvature of the cornea or lens results in 2. The loss of lens elasticity is called 3. W...

A: The visual system in any organism plays a vital role in receiving and processing visual details/imag...

Q: What is crossing over? In which period of meiosis does this event occur?

A: Chromosome is the package of densely packed chromatin fibers with DNA and histone proteins. In human...

Q: What is the function of the plant cell wall?

A: The cell is the primary element of life. It consists of the biological entity that is termed “protop...

Q: Mr. Ackah, a retired teacher had been recording consistent increase of blood pressure for the past f...

A: Increased blood pressure means that your blood pressure is slightly higher what is considered normal...

Q: Define Polysaccharides.

A: Carbohydrates are integral to nourishment and are found in a wide assortment of regular and prepared...

Q: Make a chart of common classes of medications for type 2 diabetes and how are they intended to work

A: Type 2 diabetes is most commonly observed in older adults but has been increasing in young people du...

Q: Describe the structure and the function of bronchioles?

A: Human respiratory organs form a passage through which air transports- it is called as  respiratory t...

Q: What is natural selection?

A: Natural selection was given by Charles Darwin. Natural selection is a process in which heritable var...

Q: How does natural selection influence adaption?

A: The natural process by which species adjust to changes in their environment. Life forms with charact...

Q: Please answer very soon will give rating surely Answer complete questions needed

A: The interaction between the two species that affects both of them negatively is called competition. ...

Q: Q: While walking in the woods a teenager came across an enticing plant full of berry-like truit. Upo...

A: Acetylcholine is the primary neurotransmitter of the parasympathetic nervous system, which contracts...

Q: How does the mucosa of the large intestine differ fromthat of the small intestine? How does the musc...

A: Assemblage of organs through which the food is broken down and converted into energy is called as Di...

Q: Describe the symptoms of Sickle-cell disease? What are the main causes of this disease?

A: Sickle-cell disease (SCD) or Sickle-cell anemia is a very prominent genetic disorder where the RBC o...

Q: 3. Describe Oparin and Haldane ' primordial soup theory. 4. How did you feel as you watched the intr...

A: evolution is the change in the characteristics of a species over several generations and relies on t...

Q: What is senescence? Describe some changes that accompany leaf senescence in the fall. Which hormone ...

A: Plants have two types of tissues:  Permanent tissues: Tissues that do not have ability to divide, a...

Q: Give a brief description of the actions served by the anti-clotting drugs?

A: Anti-clotting drugs are given to the patients when there is a need to prevent blood clotting. These ...

Q: what organelle controls what goes in and out of plant and animal cells

A: The cells are the basic unit of life. An organism may be unicellular or multicellular. The unicellul...

Q: Which of the following is not true of ALL eukaryotic cells? explain why   A. They have membrane-b...

A: Eukaryotic cell are those cells which have a membrane bound nucleus. These cells belong to the domai...

Q: What is spongy bone ? Explain the importance  ?

A: Introduction: Bones are the hardest tissues that form the endoskeleton of the body to give firm supp...

Q: Apart from the physical barrier, the skin creates, how else does the barrier function of the skin wo...

A: The human body is a well built machine in which all the organs coordinate together to make it work. ...

Q: How can the order of three linked genes (A, B, and C) on the same chromosome be determined?   A....

A:

Q: Lucy Dupre is a 2-year-old girl living in northern Canada. You notice that her growth seems abnormal...

A: Weaking of bone is known as osteomalacia. Lucy dupre has weak bone due to deficiency of vitamin D in...

Q: Biology Question

A: The reproductive cells of an organism are termed gametes cells. Gamete cells are always haploid in n...

Q: The presence of tiny hairs, called setae, on the toe pads of some geckos is associated with the abil...

A: Hundreds to a huge number of hair-like fibers, called setae, line the underside of a gecko's toes. L...

Q: How is local control of blood flow in tissues achieved?

A: Blood is a fluid of the body and it delivers substances like oxygen and nutrients to the cells. It t...

Q: What are the benefits of growth hormone?

A: Answer: Introduction: Growth hormone (GH) or somatotropin, is called as human growth hormones (hGH o...

Q: science

A: An endangered species is a species that is very likely to become extinct in the near future. A speci...

Q: The sympathetic nervous system has a key function in the stress response. What is that?

A: The sympathetic nervous system help in maintaining response by controlling the involuntary action of...

Q: For several years , researchers have attempted to produce ab artificial blood for transfusions. Arti...

A: Answer: BLOOD : It constitutes the cardiovascular system of body. It is the connective tissue which ...

Q: Which characteristics of normal blood is difficult to be produced artificially?

A: Artificial blood is made to act as a substitute for red blood cells.  Whereas true blood serves nume...

Q: How does the extrinsic pathway recruit the intrinsic pathway?

A: Extrinsic pathway:               The regulation of blood coagulation required for thrombosis is trig...

Dissection

Dissection is the process of cutting up the tissue of a dead or live animal or plant, to do anatomical studies and surgical treatments. The purpose of dissection is to learn more about the overall structure of organs and organ systems and thereby understand the physiology of the organism.