How you think the needs of societies in the past differ from what we need today.  How can the differences in past and present needs partly affect the kind of inventions produced?

Q: Gather data about the Protista - protozoa (Entamoeba histolytica), an organism from the Protista kin...

A: Domain: Eukarya Kingdom: Protista Phylum: Sarcomastigophora Subphylum: Sarcodina Class: Lobosa Order...

Q: What is the evidence that some mRNAs are directed to accumulate in specific subcellular locations?

A: mRNA is te transcribed product of the DNA and has an important role in defining the genetic constitu...

Q: Proteins that influence RNA synthesis by binding directly to DNA are called_____ . a. promoters c. o...

A: The conversion of the DNA into the mRNA is termed as the transcription and the conversion if this mR...

Q: Coat color of dogs depend upon the action of at least two genes. At one locus a dominant epistatic i...

A: There are some important points: We know that genes are functioning independently on each other and ...

Q: 4.) During DNA replication, the two strands of DNA are pried apart and then serve as templates for s...

A: According to our guideline we can answer only the first question. The second question is completely ...

Q: Phases of meiosis Prophase I a) DNA coils tightly to form visible chromosomes which appear rod-sha...

A: Meiosis is a process where a single cell divides twice to produce four cells containing half the ori...

Q: 18. The figures below illustrate the similarities between ATP synthesis in mitochondria and chloropl...

A: ATP (adenosine triphosphate) comes under the category of energy molecule present in the human body t...

Q: Where is chlorophyll located in the chloroplast? (a) thylakoid membranes (b) stroma (c) matrix (d) t...

A:

Q: Tenth: Flows through right atrial ventricular valve (tricuspid) Blood back flowing in aorta toward h...

A: 1) Blood back flowing in aorta towards heart enters coronary circulation(after step 10- circular flo...

Q: 7. A researcher examining a root tip observes a plant cell with condensed sister chromatids, kinetoc...

A: Mitosis is the equational division where two genetically identical daughter cells are formed. In the...

Q: Multiple Choice 1. Which of the following situation is not part of the taxonomist role? A. Ass...

A: Correct answer is Option D Explain the relatedness of endemic plants found in two different populati...

Q: Red-green color blindness is inherited as a sex-linked recessive trait. The gene is found on the X c...

A: The answer is he can't(unless there is a mutation )

Q: Distinguish between haploid and diploid cells, and define homologous chromosomes.

A: Haploid cell is the quality of a cell or organism having a single set of chromosomes (n).  Organisms...

Q: write an evaluation and discussion using the data and relate to answer the hypothesis. Hypothesis: ...

A: The garlic cloves are organic matter that can be degrade by the microbial action along with certain ...

Q: The 4 molecules that characterize life are proteins, carbohydrates, lipids, and nucleotides. True O ...

A: Introduction Biomolecules are the essential components of our body that provide life to organisms. T...

Q: Referring to the genetic code (the codon usage table), what would be the amino acid sequence of the ...

A: Mutations are a sudden, heritable change in the DNA sequence that alters the amino acid sequence whi...

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: A 52-year-old woman with a chief complaint of snoring is referred for a sleep study. As shown in the...

A: The correct Answer is A  Thyroxine     

Q: According to Frans de Waal, the two main pillars of morality are Group of answer choices A: Cooperat...

A: Frans d waal is biologist and primatologist, he is known for his study on behavior and intelligence ...

Q: If you were an epidemiologist interviewing someone with an infectious disease that could lead to an ...

A: Microbes, which are tiny and nearly invisible, have had a huge influence on society since the beginn...

Q: Which of the following best explains the morphological species concept? A. Sexual reproduction among...

A: Introduction: The morphological species concept classifies organisms based on their morphological ch...

Q: Differentiate an autosome and a sex chromosome.

A: Autosomes are the chromosomes that are involved in determining somatic characteristics of an individ...

Q: Describe the source or sources of energy needed for unidirectional translocation across the membrane...

A: RER is the site for the formation of proteins as it is studded with ribosomes.

Q: DNA pol 3's inability to begin the replication process is solved by which enzyme? helicase primase D...

A: DNA is genetic material in most of organisms . It act as template for synthesis of its own . This pr...

Q: Consider a diploid organism with 18 chromosomes. Answer each question on a per cell basis. How many ...

A: 18 chromosomes 18 18 9 9 Chromosomes are of four types: metacentric, submetacentric, acrocentric, te...

Q: Onions leaves have been modified for the purpose of _______ Defense (protection from predators) Sto...

A: ✓The scales of the onion bulb are actually modified leaves that provide protection from water loss(i...

Q: Explain at least one (1) adaption that our species may develop to continue surviving on earth

A: The human body is very sensitive to the changing environmental pressures of various biological and c...

Q: Explain why prokaryotic cells are not really primitive. Include examples.

A: Prokaryotic cells are single-celled entities that are primitive in structure and function as they la...

Q: Q1 The Hardy-Weinberg equation calculates the frequencies of different genotypes from the frequency ...

A: Hardy–Weinberg's principle It proposes that in a population, allele and frequencies of genotype will...

Q: The Arctic is an example of a harsh environment. Plants living in the Arctic are faced with many cha...

A: The Arctic is located at the northernmost part of Earth. Temperatures of this region in winter can d...

Q: At the playground, a bully has been causing other students to play whatever games they want. Althoug...

A: Many weaker boys uniting together to fight against a single stronger boy is a kind of group behavior...

Q: How to persuade a faith healer about the advantages and benefits of the Scientific and Bio-medical P...

A: Faith healing has defined the process of healing a person with disease or disability by religious be...

Q: Question 11 in the "Ram Model" proposed by Roselli, the researchers demonstrated that O Sheep learn ...

A: 1.Goal of Ram model proposed by roselli is to understand male or female differentiation and behaviou...

Q: RNA knockdown has become a powerful tool in the arsenal of methods used to repress gene expression. ...

A: "ANSWER  A gene knockdown Is a temporary reduction in expression of genes induced by an analytical ...

Q: A 43-year-old (gravida 2, para 2) pregnant woman requests chorionic villus sampling (CVS) and a kary...

A: The correct answer is b. Klinefelter syndrome is a diagnosis for a boy with mild to moderate learnin...

Q: Direct cystometry is used a needle inserted through the walls of the abdomen directly to the bladder...

A:   INTRODUCTION    Cystometry is a test that mainly used for checking the problem with  abundant and ...

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: Is genetic engineering a pure scientific process or it is indeed an act of humans playing like God?

A: Genetic engineering is a process by which the nature of genetic material (DNA and RNA) is altered an...

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: 28. During respiration, most ATP is formed as a direct result of the net movement of (A) potassium a...

A: Synthesis of ATP occurs through aerobic cylinder respiration in the mitochondria. The enzyme ATP syn...

Q: Here are the progeny of this cross: (Note that the categories are not in any particular order.) Fly ...

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

Q: Differentiate between macronutrients and micronutrients needed by plants. Minimum of 7 sentences, ma...

A: Soil is a major source of nutrients needed by plants for growth. The main nutrients are nitrogen, ph...

Q: . What are the number of total chromosomes that carries the genes encoding heavy and light chain pol...

A: Introduction :- Immunoglobulins or antibody are made up of two light chains and two heavy chains of ...

Q: In a few brief sentences, describe one of Frans de Waal's experiments with primates. Note: No plagia...

A: Answer :- During de Waal's experiments, he said, monkeys compensated impartially dismissed the cucum...

Q: Which requires more tillage operations, a rice-field with long stubbles and more weeds, or one with ...

A: Tillage It is the process of agricultural soil preparation that involves different sorts of mechanic...

Q: Explain how twins could have the same genetic material but not look exactly the same or have the sam...

A: The development of twins occurs due to multiple pregnancies. Twins can be categorized into different...

Q: Seabirds Human Polar bear ce algae Seal Zooplankton Phytoplankton Beluga whale Bowhead whale Arctic/...

A: The given picture resembles the marine food web for the Pacific region. A food web consists of all t...

Q: How can you relate the two principles of Mendel to Chi-Square Values? (essay only)

A: The principle of the Chi square values is that there it is used to tell the characters and unique tr...

Q: What will be the effect of macronutrient deficiency on plant growth and development

A: Macronutrients are of two types primary and secondary macronutrients. Primary macronutrients are nit...

Q: illustrate a submetacentric chromosome and label its part

A: According to the position of centromere chromosome can be classified :-

Human Evolution

Human evolution is the process of evolution of humans from early man to anatomically modern humans. The process of evolution in humans leads to the gradual development of traits like bipedalism. Humans are the highly social animals that make them the most advanced animal on Earth.  Human evolution is an outcome of interaction among the following processes: