which of the following is true of chemical signals? - they can only be perceived by the intended reciever - they require physical contact between a molecule and a receptor adapted to fit that molecule - they are perceptible from longer distances, on average, than mechanical signals such as sound waves - they are used almost exclusively in a mating or courtship context

Q: Describe the intracellular response to activation of α and β adrenergic receptors

A: Introduction:The adrenergic receptors, also known as adrenoceptors, are G protein-coupled receptors ...

Q: _____ are characteristic of cancer. a. Malignant cells b. Neoplasms c. Tumors

A: Introduction :- Cancer is a disease that occurs when cells divide uncontrollably and spread into nea...

Q: Which of the following is TRUE about CAM photosynthetic pathway? Compared to the C3 and C4 pathways,...

A: * CAM photosynthetic pathway also called  Crassulacean acid metabolism photosynthetic pathway. *CAM ...

Q: What would have happened if the darwinian revolution did not unfold?

A: Darwin revolution is revolution after his book origin of species. 

Q: 4. Clouded leopards are a medium sized, endangered species of cat, living in the very wet cloud fore...

A: Given information Clouded leopards are medium-sized species. XN is normal spots sex-linked dominant...

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A: ANSWER;- D)  They are incapable of processing information and producing meaningful language  

Q: 9.)Which of the following does NOT describe the molecular structure of (DNA) Deoxyribonucleic Acid? ...

A: 9- DNA is a double helix ,deoxyribose sugar made up of nitrogenous bases while RNA is ribose sugar. ...

Q: Which pioneers of microbiology had the biggest impact on surgical patient care?

A: Introduction:- Microbiology always helps us to create numerous medical advancements in terms of unde...

Q: In which stage of the demographic transition does population increase the most?

A: Demography refers to study of human population in statistical terms. It includes births (fertility),...

Q: What are the differences between hnRNAs, snRNAs, miRNAs, siRNAs, and snoRNAs?

A: hnRNAs, snRNAs, miRNAs, siRNAs, and snoRNAs are the different classes of small RNAs involved in diff...

Q: on dioxide in C3 plants in preparation for the Calvin cycle. Explain the chemical pathway used to fi...

A: The process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in t...

Q: Uganda, explain why the death toll of ITALY was very high if the disease affect the aged in the comm...

A: Solution : One factor affecting the country’s death rate may be the age of its population—Italy has ...

Q: Can a client with locked-in coma still swallow and speak as well as have normal sleep-wake cycles?

A: A coma is similar to a dream-like state because the individual is alive but not conscious. A coma oc...

Q: Can you answer the last three q

A: Note: As per Bartleby Guidelines For Remaining Answers Please Repost The Question. Introduction: Amp...

Q: What is the importance of Recombinant DNA Technology in the Molecular Laboratory

A: Recombinant DNA technology- Recombinant DNA technology is the joining of two different DNA molecules...

Q: The greatest trophic diversity is found in which group of organisms?

A: Trophic means the hierarchical strata of a food web or nutrition. Trophic diversity means nutritiona...

Q: Two different monophyletic groups that share common ancestry with each other more recently than eith...

A: Answer : Two different monophyletic groups that share common ancestry with each other more recently ...

Q: Explain the steps of meiosis in a diploid (2n ) cell.

A: Meiosis is a cell division that makes four daughter cells from a single parent cell.  

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A: CO2 uptake results in a decrease in entropy because CO gets fixed into a carbon skeleton by combinin...

Q: Does changing the sequence of nucleotides always result in a different amino acid sequence? Explain

A: No, changing the sequence of nucleotides does not always result in a different amino acid sequence.

Q: What property of the various cytochromes ensures unidirectional electron flow along the electron-tra...

A: Cytochromes, a family of metalloproteins which performs one-electron transfer reactions, in biologic...

Q: Explain some of the ways genes may interact to affect the phenotype and discuss how a single gene ca...

A: ANSWER:  Some of the ways by which genes may interact to affect the phenotype are mentioned below:  ...

Q: If you have 7 large DNA duplexes, how many TOTAL DNA duplexes will you have after 7 rounds of PCR (i...

A: * PCR or polymerase chain reaction is chemical reaction  used to amplify the pieces of DNA. *Hence B...

Q: Snapdragon flowers can come in red, white, and pink. This trait is controlled by a single locus gene...

A: According to Mendelian law of dominance, one of the two alleles associated with a particular phenoty...

Q: Because DNA is found in the nucleus, transcription is a nuclear-localized process. Ribosomes respons...

A: Heterogeneous nuclear ribonucleoproteins (hnRNPs) represent a large family of RNA-binding proteins (...

Q: How do selective-serotonin reuptake inhibitors (SSRIS) increase serotonin in the synapse? O They cau...

A: Note: As Per Bartleby Guidelines For Remaining Answers Please Repost The Question. Introduction: Ser...

Q: Why do blood vessels degenerate during organogenesis? What is the significance of this degeneration?

A: In human body blood vessels helps in the  delivered of blood to the organs and tissues in our body. ...

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A: The norm of reaction is a curve. It describes a a phenotypic pattern of a gene which varies in a dif...

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A: If two alleles of genes are located close together on the same chromosome, both the genes will be pa...

Q: Describe the series of processes that link light absorption with ATP synthesis (photophosphorylation...

A: Photosynthesis includes light-dependent and light-independent phases.

Q: Using penci, you will draw a representation of DNA replication along the leading and lagging strands...

A: Replication is the process by which DNA duplicate and make its own copies, replication of DNA is a l...

Q: Poly-A chain would produce what type of amino acid chain?: Is it Poly-Alanine, Poly-Arginine, Poly-A...

A: Poly A tail is added to the mRNA molecule for enhancing the stability of the molecule during process...

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A: High power objective lens is used to examine fine details of the given specimen. The total magnifica...

Q: compare how histones and micro RNA control gene expression.

A: Histones are protein molecules associated with the DNA structure that control it's activity.  Micro ...

Q: How does aminoacyl-tRNA synthetase enzyme select and determine the right tRNA for activation?

A: The aminoacyl-tRNA synthetases identify the proper tRNAs based on their entire configuration rather ...

Q: Draw cells in 4 large squares of the hemocytometer showing: 48 total viable cells (hollow dots) 9 t...

A: Hemocytometer is a counting- device used for counting blood cells. It is a glass slide with a cover ...

Q: Explain the goals and methods of restoration ecology

A: Ecology can also be termed as ecological science. It is refereed to as the branch of biology associa...

Q: While there are many criteria to describe the difference between two species, the biological definit...

A: There are many criteria to describe the difference between two species. 

Q: Describe the symport process by which cells lining the small intestine import glucose. What ion is r...

A: Active transport includes the use of metabolic energy for the transport of substances.

Q: What is organic waste and why is it importnant to have less organic waste

A: Humans rely on ecosystems for a variety of unseen services. An ecosystem is important because it con...

Q: Which of the following statements related to classifications of rarity and extinction is TRUE? A spe...

A: * the factors for extinction are  diseases.  predators. competitors. climate change.  catastrophic ...

Q: Which of the following are jawless? Choose all that apply. O hagfish O lampreys O bony fishes O cart...

A: Jawless organisms are belongs usually to class Agnatha and primitive in nature. 

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A: Technology is utilized in science, while science is used in technology. Both are vital to our societ...

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A: A growth medium, also known as a culture media, is a solid, liquid, or semi-solid solution used to p...

Q: The lumbar region is ________.a. inferior to the gluteal regionb. inferior to the umbilical regionc....

A: Vertebrae of a human spine is divided into cervical, thoracic, lumbar, sacral and coccygeal. Out of ...

Q: 1.) Propose the biosynthesis of 5-methylorsellinic acid: CH; НО CH3 `CO,H OH

A: 5- methylorsellinic acid is a dihydroxybenzoic acid. That is O-orsellinic acid in which the hydrogen...

Q: 10n: Frans de Waal found that when they differentially rewarded Capuchin Monkeys for the same task, ...

A: The capuchin monkeys are New World monkeys belonging to the subfamily Cebinae. They are not good pet...

Q: Base on the data below, what type of lipid is being present in the sample?

A: A lipid is any of various organic compounds that are insoluble in water.. Some lipids are -- include...

Q: Two loci exhibit 5% recombination between them. How many map units apart are they?

A: Genetics is a branch of science concerned with the study of genes, genetic variation, and heredity i...

Communication

Communication is a method of transferring information between two persons or organisms. Communication is possible using mutually understood behaviors such as signs, symbols, or language. In the year 1980, S. F. Scudder proposed communication theory. According to his ideas, all living beings on the earth communicate, but the methods of communication differ. Communication skills are now part of soft skills.