How are cell membranes classified according to their permeability?

Q: What is the meaning of BSC or biological safety cabinet and why is it important and how is it works?

A: Introduction: Biosafety issues refer to the procedures, policies, and principles to be adopted to sa...

Q: What percentage of vertebrate species do mammal species make up?

A: The vertebrates are the animals in which the notochord is replaced by the vertebral column. The vert...

Q: Why is ropiness usually observed at the center of the bread?  What is the selective agent used in t...

A:

Q: In mathematical terms, what characteristic of a graphed line is a measure of enzyme reaction rate?

A: Introduction: Enzymes are macromolecular biological catalysts. Enzymes accelerate chemical reactions...

Q: Are alleles mixing between the populations? Is there evidence from DNA that alleles (variations of t...

A: In general the different alelles undergo mixing they form new recombinations with other allele, this...

Q: What structures play a role in protecting vertebrate central nervous tissue?

A: Definition of CNS The brain plays a central role in the control of most bodily functions, including ...

Q: What are the typical reactions observed when incubating lactic acid bacteria in litmus milk? Explain...

A: Litmus Milk is a medium for the maintenance of lactic acid bacteria and for the determination of bac...

Q: Non-oxidative processes for ATP regeneration are only employed in anaerobic exercise O True O False

A: In anaerobic metabolism lactic acid is produced which is during intense activity  ATP regeneration o...

Q: 10. When studying the processes of speciation we learned about situations when two closely related s...

A: Species are classified as reproductive unit. According to the biological species concept two differe...

Q: Broadly speaking, primates can be most active during the day or at night. Today most living Haplorrh...

A: Haplorhines and strepsirrhines are the suborders of primates.These two lineages have diverged and Ha...

Q: Nonsense-mediated decay is an mRNA surveillance pathway thateliminates mRNAs with premature stop cod...

A: The decapping and deadenylase enzymes are critical in the onset of mRNA degradation. It is vital to ...

Q: What Is a Species? Instructions Watch the video What Is a Species? and answer the questions. Questio...

A: Answer 

Q: Are bird wings and the wings of bats (evolved from limbs) an example of an evolutionary homology or ...

A: Introduction In this question we have to discuss about the examples of an evolutionary homology or a...

Q: 4. What are the problems with a repaired PNS axon?

A: Since you have asked multiple question, we will solve the first question for you. If you want any sp...

Q: Complete the sentences below using the words and phrases on the left. Then arrange the text boxes to...

A: 1) DNA double helix, open promoter complex 2) Transcription mRNA, hairpin loop 3) Sigma factor 

Q: Directions: Read the situation and identify the points of Darwin’s natural selection.  There are 2 t...

A: This is a classic example of Darwin's natural selection  natural selection is a phenomenon through w...

Q: Explain the movement of indirect protein transport; where are the proteins made, where are  they goi...

A: Introduction: Facilitated diffusion is a form of passive transport across a biological membrane in w...

Q: dogs, a dominant gene (I) determines white coat, and a recessive gene (i) gives colored coat. In the...

A: This type of gene interaction is called epistatic gene interaction  The method used will be punnet s...

Q: Write down the pros and cons of phenocopying and explain: “No two people are exactly alike. Even mon...

A: Introduction :- Environmental conditions (often, but not always, during the organism's development) ...

Q: 31. One of the reasons that primates have been so evolutionaritly successful for the past 55 million...

A: The primate is a group (class) of mammals under sbuphylum vertebrata includes lemurs, lorises, tarsi...

Q: 1 2 3 4 Use the Figure to answer the following question(s): is a baslphil. 4 1 3 2 OO00

A:  option ( 3) is  a  basophile .

Q: The functional parameters of respiration change with aerobic training O True False

A: Respiration is a metabolic process of taking in oxygen and releasing carbon dioxide. In the process,...

Q: What are the adaptations of parasitic nematodes that make them successful as endoparasites?

A: Parasitic nematodes are round worms that depend on the host for their nutrition they belong to phylu...

Q: 5. Indicate how the following perturbations affect dorsal/ventral patterning of the somites. a. Remo...

A: Answer :: a) shh stands for Sonic hedgehog. This acts as a ligand for patched receptor. Shh are n...

Q: Make an essay about this. Suppose it is possible to use genetic engineering to make people more inte...

A: Answer :: Genetic Manipulation : Genetic engineering also called genetic modification is the direct ...

Q: Define about posttranslational modifications within the proteome ?

A: A complete set of proteins expressed by an organism is called a proteome. In other words, assortment...

Q: Blocking the ability of DNA methyltransferases to target the glucocorticoid receptor gene would like...

A: DNA methyltransferases These are a conserved family of cytosine methylases that are involved in epig...

Q: Complete the table below.  Type of Jaw Attachment/Suspension Usually found in what group of fishes...

A:     INTRODUCTION          Jaw suspension defines as the attachment of lower jaw with the upper jaw a...

Q: All lemur species live in ____ and their diversity is the result of _____ a. The American Neotropic...

A: Introduction: The founder effect is one form of genetic drift. This is the phenomenon in which there...

Q: Why do you think high nitrogen rates resulted in an increased incidence of rice diseases in general?...

A: Introduction:- There are two sources of nitrogen in soil that could be used by plants: nitrogen-cont...

Q: Which would you expect to cost more per pound? What would a brewer need to do to be able use each of...

A: Oats are important breakfast cereals with excellent lipid profiles and a high amount of soluble fibe...

Q: What is mind map? How do we do it?

A: What is mind map A Mind Map is a simple approach to brainstorm ideas without having to worry about o...

Q: Define about Drosha enzyme ?

A: RNA is a type of nucleic acid present in the cells.

Q: 1. Why do we need to check the isolated DNA for its quantity and quality? 2. The purity of DNA samp...

A: Deoxyribonucleic acid DNA isolation is referred to the extraction process of DNA from different sou...

Q: f you wanted to domesticate a new crop species, and used 2 traits that you selected for during domes...

A: The adaptation of wild plants and animals for human consumption is known as domestication. Plant dom...

Q: In human populations birth survival rates tend to increase towards children born with a more average...

A: Natural selection is a process through which organisms better adapted to the environment survive and...

Q: Describe the activation of the taste receptors

A: The process of activation of taste receptor is given below:-

Q: Family name, scientific name, common name, hosts/damage, life cycle, morphological characters (Focus...

A: Family name: A taxonomic rank, or a taxon of that rank, is referred to as a family. There are one or...

Q: A continuously growing population of kangaroos has a population size of 100 and an intrinsic rate of...

A: Given - No= 100 r=0.1 N=100*0.17  Formula= N = N0 * rt

Q: How many phenotypes result from a dihybrid cross involving completely linked genes (i.e., no crossov...

A: Dihybrid crosses with linked genes create phenotypic ratios that are similar to what we would predic...

Q: In the brain imaging experiment we discussed, where they observe the effects of exercise on endogeno...

A: Excercise leads to various changes in the body such as sweating , activation of sympathetic nervous ...

Q: 2 a) What does calcium do in a skeletal muscle cell and where in the cell does it come from?        ...

A: Skeletal muscle contraction is a complex phenomenon and involves various processes requiring special...

Q: Label the following as Porifera, Cnidaria or Both: -Composed of radial symmetry. -Composed of asymme...

A: According to our guideline we can answer only the first three subparts of a question. So, please upl...

Q: What is deadenylation- dependent decay ?

A: Basically, deadenylation stands for the removal of an adenylate group from any part of protein. All ...

Q: Explain in detail how the digestive, circulatory, and respiratory systems are interrelated and work ...

A: There are basically 11 body system in the body . It comprises of :-  I ) Respiratory system.     II ...

Q: Directions: Write the letter of the correct answer to complete the paragraph. Use a separate sheet o...

A: DNA is the genetic material in living organisms that is present within the nucleus, chloroplast and ...

Q: The Pliocene Epoch is when our species, Homo sapiens first evolved. Group of answer choices True Fal...

A: Pliocene Epoch was a Geological Time which started approx  5.4 million year ago and ended approx 2.3...

Q: Describe the process of adenovirus cell attachment and entry through to association with the nuclear...

A: A virus, an unseen microorganism, infiltrates our body. It infiltrates our tissues and then intercep...

Q: A single celled, prokaryote organism has the ability to use the Na+/K+ pump in their cell membrane t...

A: The sodium-potassium pump (sodium-potassium adenosine triphosphatase, additionally called Na⁺/K⁺-ATP...

Q: WHAT is a scientific question I can ask about Mitochondria & SDH Activity. What hypothesis can I say...

A: There are some points that will kept in mind : Mitochondria is energy converting organelles and are ...

Homeostasis

Homeostasis is a self-regulatory process through which different biological systems maintain constant internal environmental conditions to compensate for environmental changes. In human physiology, it is a process of self-regulating internal, chemical, and physical conditions at an optimal level for survival. The stability through homeostasis can be attained through dynamic equilibrium, in which there is a continuous change until it reaches its systemic conditions.