1. Will the water penetrate all through the sandwich? Explain. 2. Explain which layer(s) of the sandwich are hydrophobic and which layer/s are hydrophilic. How is this similar to the structure of a cell membrane?

Q: Using illustrations describe the structure of a typical cloning vector and discuss the functions of ...

A: "Biotechnology" is the use of our knowledge of biological processes to the development of beneficial...

Q: Please answer fast the population density (n) changes as a function of the current population densi...

A: The logistic population growth can be calculated by : dn/dt =r n (k-n/k) Where dn/dt is the populati...

Q: R M

A: Sheep brain sagittal view: Introduction: A sheep's brain is extremely similar to that of a human. Ho...

Q: How did the industrial revolution in England offer an example of natural selection?

A: Introduction In this question we will discuss how did the industrial revolution in England offer an ...

Q: 3. Where does each of the following occur in the cell? Be specific. Glycolysis- Citric Acid Cycle- E...

A: A cell can be referred to as a cytoplasmic mass that is outwardly attached by a plasma membrane. Cel...

Q: Based on this report (and assuming that none of the compounds significantly increased inflammation),...

A: The scientists have isolated there compounds and are checking out its efficacy in mice. The muscle d...

Q: Choose the answer that best fits. 7: The Nariokotome specimen ... Group of answer choices A: is the ...

A: Evolution is a continuous transition of living forms, beginning with the basic forms of the past and...

Q: shown in the figure. Which of the following statements is true for the following experimental result...

A: First, we need to know that what is the technique- q-rt-pcr? It stands for Quantitative Reverse Tran...

Q: In Cell division of sex cell; why it is necessary to undergo or complete the Meiosis I and Meiosis I...

A: Answer :- In cell division of sex cell it is necessary to undergo or complete the Meiosis I and Meio...

Q: The following DNA nucleotides are found near the end of a bacterial transcription unit. 3'-AGCATACAG...

A: The functions of DNA and RNA are controlled by genes. Genes are made up of a distinct collection of ...

Q: Represent the segregation of chromosomes during Meiosis 1 and Meiosis 2 A. normal segregation in ...

A: A single cycle of replication of dna is accompanied by two cycles of nuclear divisions termed meiosi...

Q: What is a genomic DNA library? A. All DNA fragments identified with a probe O B. A general collectio...

A: Genomic libraries are mostly used for the  sequencing applications. A genomic library contains all ...

Q: Distinguish between taxonomy and phylogeny

A: *Taxonomy is the study of classification of organisms into taxa by arranging them in highly ordered ...

Q: Why does mitochondria and chloroplast are considered as ancestors of representative eukaryotic cells...

A: Mitochondria is a very important cell organelle that is present within the plant and animal cells an...

Q: Explain how ribosomes function in polypeptide synthesis.

A: Ribosomes consists of RNA and tRNA together that helps in the synthesis of proteins. Ribosomes are r...

Q: In many bird species, sex is preceded by a courtship dance. If a male’s dance is unrecognized by the...

A: Charles Darwin is the father of evolution, and his theory explains how species evolve throughout tim...

Q: Find and match the scientific names of the organisms’ common names using the following key (picture ...

A: Scientific names of these organisms using the key are given below 

Q: Illustrate and describe the following life cycle: (Please include references) a. Ascaris lumbricoid...

A: Introduction Ascaris lumbricoides:- Ascaris lumbricoides is an intestinal roundworm that causes rest...

Q: The anticodon loop of one of the t RNA Gly molecules from Escherichia coli is as follows: C--G G--C ...

A: tRNA is a specialised RNA molecule that transports the amino acids during translation. A tRNA is spe...

Q: It is essential that RNA primers at the ends of Okazakifragments be removed and replaced by DNA beca...

A: Introduction  DNA replication is very crucial for the continuation of life as every new daughter cel...

Q: A mutation in the Ras protein renders Ras constitutively active (RasD). What is constitutive activat...

A: The Ras protein can be referred to as tiny G protein that requires phosphorylation of guanosine trip...

Q: The transverse tubular system: A)speeds the transmission of an action potential down the length of a...

A: *Tansverse tubular system is a network of interconnecting rings that surrounds a myofibril. *It prov...

Q: If we could prevent wastes from flowing from the Chesapeake Bay into the Atlantic Ocean, it would he...

A: Water pollution is the pollution of streams, rivers, lakes, seas, or groundwater by pollutants emitt...

Q: Use examples to describe some patterns of macroevolution.

A: Macroevolution can be defined as the evolution of the larger organism as compared to the original or...

Q: What is the most accepted hypothesis on the origin of life on earth? How does it compare to the othe...

A: Introduction The heterotrophic hypothesis on the origin of life is the most compelling and widely ac...

Q: Zonation Examples Species Illustration (according to its zonation) Zone 1 – highly exposed mangrove...

A: Mangrove trees are salt tolerant trees  and grow in intertidal regions of tropical and subtropical o...

Q: In order to view Treponema pallidum, the causative agent of syphilis, under the microscope, you can ...

A: In test we are detecting a bacteria under microscope (fluorescence microscope) and the tag are uses ...

Q: s evolution important to all living things, and why do we need to adapt to the ever-changing conditi...

A:

Q: (a) Complete the table, using a letter D, R or B, to show whether each statement applies to: DNA onl...

A: Genetic material is the hereditary substance in the cell. It carries all information specific to org...

Q: 5. Which among the following statements incorrectly describes a cladogram? Cladogram is the same as ...

A: Evolution is the change in characteristics of species over generations. The theory of evolution stat...

Q: Which of the following explains infants' ability to tell the difference between new and old stimuli?...

A: *A newborn baby recognizes his mother voice and pay little attention and baby will see toy this is c...

Q: Research suggests that there are several SAR-CoV-2 variants circulating in the Jamaican population. ...

A: SARS-CoV-2 The SARS-CoV-2 virus is responsible for causing Coronavirus Illness (COVID-19), an infec...

Q: Is Your Bottled Water as Safe as You Think It Is?

A: The Food and Drug Administration (FDA) has made some set of standards for the purpose of bottled wat...

Q: THINK IT THROUGH Having solved the water depletion problem in your state, your next task is to deal ...

A: Some of the myths about groundwater are that they are inexhaustible but it is not true because if pe...

Q: (iii) In terms of their modes of action at a molecular level, antibiotics and antibacterial agents c...

A: *A chemical substances produced by an microorganism that iss harmful to other microorganisms is call...

Q: Which of the above nucleotides(s) (1/2/3) are used in DNA sequencing reaction? A nucleotides-x3.pdf ...

A: DNA sequencing is a technique used to determine the exact sequence of bases in a DNA molecule. DNA s...

Q: Describe why primitive animals are primarily marine

A: The first life on Earth was observed in water, billions of years ago. Primitive organisms are the sm...

Q: Question 45 A collateral axon provides neurotransmitters at the synaptic cleft that opens chemically...

A: The neuron forms the basic structural unit of the nervous system which helps in the communication be...

Q: Some of the most common mutations associated with cancer are found in the small G protein Ras. Oncog...

A: "Genes" are the fundamental unit of heredity. They store genetic information in the form of DNA, whi...

Q: 1. a. One pair of wings... -go to 2 b. Two pairs of wings... 2. a. Hind wings reduced to tiny knobs....

A: There are few points about dichotomous key for insects are as follows: On the basis of observable ch...

Q: In Alaska what biomes do they have? Is it snow only? In New York what biomes do they have? Brazil an...

A: Introduction :  A biome is a community of plants and animals that have common characteristics for th...

Q: What is a plausible hypothesis that describes a possible mechanism to explain the differences betwee...

A: Introduction: Only certain species of mosquitoes of the Anopheles genus and only females of those sp...

Q: If you had a dialysis tube that contained 1.3M sucrose solution and you put it into a beaker contain...

A: Excretion is a core process of the living organism. All the waste products of the body are removed f...

Q: uestion Fungi are more closely related to plants than they are to animals - basically, they are plan...

A: Introduction :    *** Fungi  do not contain green pigment that is chlorophyll . So they are not capa...

Q: What is the primary function of the sigma factor? Is therea protein in eukaryotes analogous to the s...

A: SIGMA FACTOR : are RNA polymerase detachable polypeptide component. Eukaryotic transcription factors...

Q: Which is NOT a factor that increases stroke volume with endurance training.       Reduced cardiac ...

A: ANSWER;- Reduced cardiac and arterial stiffness is not a factor that increases stroke volume with en...

Q: A geneticist uses a generic engineering approach to mutate the TATA-building protein (TBP) of a muri...

A: *The TBP is the gene that instruct for making a protein called the TATA box binding protein. *This p...

Q: Lactose fermentation can be used to distinguish between which of the following? Bacteria of the ...

A: Fermentation is one of the earliest food processing processes. Lacto-fermentation is a type of ferme...

Q: What explanations can account for the following pedigree of a very rare trait? Be as specific as pos...

A: The pedigree analysis helps us identifying the mode of inheritance of a particular disease by observ...

Q: Consider a human lover cell vs a cheek cell: Explain whether the following components are identical/...

A: Introduction: Transfer ribonucleic acid (tRNA) is a type of RNA molecule that helps decode a messeng...

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.