Define  the terms "Prolonged engagement" and "Persistent observation" and explain how these terms are related to the process of collecting data.

Q: What are the developmental stages of Trypanosama? Describe how the stages appear

A: Life cycle of trypanosoma cruzei:- it involves two intermediate hosts : Triatomine insects and human...

Q: Which of the following statements does NOT describe Darwin's theory of natural selection  A. Member...

A: * Natural selection is the mechanism in populations of living organisms adapt and survive best. *Spe...

Q: 0. In humans, dark hair (D) is dominant over blondness (d), and color blindness (c) is a sex-linked ...

A: Color blindness is typically an inherited genetic condition in which individuals have a decreased ab...

Q: Match the hormones involved in calcium homeostasis below with the glands or organs that secrete them...

A: Calcium homeostasis refers to the maintenance of a constant concentration of calcium ions in the ext...

Q: Which of the following IS NOT part of the goals of acute stress response to increase rate of skeleta...

A: The acute stress response is the set of events that takes place when the body encounters a stressful...

Q: What analysis is provided by the study of human age pyramids?

A: Introduction In this question we have to write about the analysis provided by the study of human age...

Q: Hello, good day. I have a problem answering this question, and I need your help. Hoping for a respon...

A: Mosquito repellent: the chemicals that repels the mosquito away. 

Q: Do these phylogenies depict the same relationships among taxa? Explain yes nd why. * А C B A CB

A: The polyphyletic taxon consists of a group of organisms that share similar characteristics but do no...

Q: Mycobacteria tuberculosis and Rickettsia

A: Mycobacterium tuberculosis is a pathogenic that bacteria from the family Mycobacteriaceae and the ca...

Q: Where does photosynthesis take place in prokaryotes such as Cyanobacteria?

A: Photosynthesis is the process by which plants produce oxygen and energy in the form of sugar by comb...

Q: Identify the steps involved in designing an experiment.

A: Experiments are conducted to test a particular hypothesis. Results then give a measure of how true o...

Q: Suppose a population has two alleles at a particular locus, and individuals with different diploid g...

A: Hardy Weinberg’s principle is the mathematical representation of population analysis which calculate...

Q: What is the difference between primary ecological succession and secondary ecological succession?

A: In this question we have to write the difference between primary ecological succession and secondary...

Q: 1. Differentiate Precipitation from Agglutination reactions based on:      a. Time duration of the ...

A: Agglutination is the procedure of clumping antigens with their respective antibodies. Agglutination ...

Q: If the true inheritance pattern was a normal Mendelian dihybrid cross, it would be more likely to re...

A: * Mendels dihybrid cross : *Dihybrid cross  means crossing  between two different genes that has two...

Q: 3 What is Polymerase Chained Reaction (PCR)? How does PCR work?

A: The world as a whole saw a surge of the disease COVID in the year 2020. For the detection of the vir...

Q: Answer the following questions based on the following karyotype shown. Write TRUE if the statement i...

A: Karyotype is the man made artificial arrangement of all chromosome present with in  cell according t...

Q: After conducting the Gram staining procedures and you observe nothing (you didn’t see anything) in y...

A: Introduction Gram staining, commonly known as Gram's method, is a staining technique that is used to...

Q: What is the common feature of RTKS: O cysteine rich domains SS binding of external proteins O trysos...

A: Tyrosine kinase domain

Q: What were the major developments that facilitated the current level of acceptance of a possible link...

A: Violence: it is an extreme type of aggression. 

Q: a) Provide a description of the the small intestine epithelial cells observed under high power objec...

A: Histopathology:- Small Intestine Mucosa: - Type of Lining: - Simple Columnar Epithelium Morphology:-...

Q: Fish-for-self Thief Fish-for-self P-B FOCAL ANIMAL Thief P B-C P-C The above figure is a suitable ap...

A: The table shows the matrix of fitness.  P= baseline fitness  B= fitness by stealing C = fitness cos...

Q: Table 1. Different Staining Techniques Gram Stain Acid Fast Endospore Capsule Flagella 1. Principle ...

A:    ANSWER

Q: Primer designing: A single-stranded DNA sequence (963 nucleotides) that codes for a hypothetical pro...

A: ANSWER;-  Forward primer:Sequence = 5'-CT-GAATTC-ATGGCTAAAGGCGGAGCT-3'Length = 18 ntdGC content = 56...

Q: What are plankton, nekton and benthos?

A: Introduction Thereare three types of aquatic living organisms that can be classified as plankton, ne...

Q: What is the shape and arrangement of the palisade mesophyll in the dicot leaf? (b) What is the shape...

A: Structure of leaf  Leaf is a structure involved in photosynthesis, General structure of leaf consist...

Q: What are the developmental stages of Trypanosama? Describe how the stages appear

A: Trypanosoma is one celled , protozoan with flagella which comprises of digenetic life cycle . It inv...

Q: We observed that a hungry herbivorous animal has eaten the bark of a small tree to as far as it can ...

A:   Herbivores are animals whose primary food source is plant-based for example – deer, koalas, and so...

Q: Can the amount of available energy on a given trophic level be larger than the available energy on l...

A: The statement is wrong . The avelable on lower tropical level is always higher than at higher tropic...

Q: Which of the following are incapable of undergoingmitosis?a. osteoblasts and osteoclastsb. osteocyte...

A: Introduction: Bone tissue is composed of four types of the cells which are osteocyte, osteoblast, os...

Q: Which of the following statements about the differential expression of human genes is correct? A. D...

A: The Human Genome Project states that genes in human vary greatly in size, ranging from a hundred DNA...

Q: Can someone explain this? When you cross female flies with white eyes to male flies with red eyes, y...

A: Cross occurs between white eyes females XwXw x red eyes males XWY. Red is a dominant character over ...

Q: Using analogy / comparative method, describe what the first hominin who moved out of the trees and o...

A: * Modern humans originated from Africa and evolved from recent common ancestor, Homo erectus. *It me...

Q: Describe how you would experimentally demonstrate that a specific G beta protein subunit is required...

A: Cells communicate with each other via released proteins unique to each kind. Signal transduction pat...

Q: Research has stated that there are factors that could affect the efficacy and duration of mosquito r...

A: There are many different types of mosquito repellants, but they all work to repel mosquitoes by mask...

Q: Can the amount of available energy on a given trophic level be larger than the available energy on l...

A: The number of steps an organism has taken from the beginning of the food chain determines its trophi...

Q: Based on the information above, what can you speculate about the possible evolution of the genes tha...

A: Rab proteins are small GTP-binding proteins within a superfamily of GTPases known as the Ras superfa...

Q: Which of the following statements about cancer is correct? A. Cancer stem cells can make tumors resi...

A: Cancer is a disease that occurs when the cells in the body start dividing abnormally. They go out of...

Q: Mouse Cat Baboon Cost to purchase one animal $5.00 $50.00 $500.00 Cost to maintain one animal for on...

A:   Mouse Cat Baboon Cost to purchase $5.00 $50.00 $500.00 Cost to maintain $45.00 $200.00 $500.00...

Q: Why are GMOS considered a threat to the environmental safety?

A: Genetically modified organisms (GMOs) A GMO is an organism whose genetic material has been altered ...

Q: Instructions: have a look at “Figure 2.pdf”. This shows a diagram mapping the Arabidopsis Rab protei...

A:  There are few general  points that should kept in mind . these are as follows: About  Arabidopsis ...

Q: How are chromosomes, DNA, genes, and alleles related?

A:

Q: Compare the developmental stages (cleavage, blastula, gastrula) of the frog with an invertebrate pre...

A: INTRODUCTION Different stages of development of frog and sea urchin is given below.

Q: (a)Describe the small intestine epithelia cells observed under HPO in microscope. (b) Describe the k...

A: In small intestine mainly simple columnar epithelium and in kidney simple cuboidal epithelium is fou...

Q: (d) Given below is an apparatus used to study a particular process in plants. Study the same and ans...

A: The apparatus mentioned here is used to study the water movement in plant with the help of coloured ...

Q: Trace the flow of hormanes in the adaptive thermoregulation response involving brown adipose tissue....

A:   In thermogenesis the production of heat energy in brown any post issue is a component of the homeo...

Q: What is the importance of water, carbon and nitrogen for living organisms? Explain briefly.

A: There is wide diversity in living organisms in our biosphere. Are all living organism made up of the...

Q: What can be concluded about the influence of climate change on extreme weather events?   a. climat...

A: Correct option is b b. climate change is intensifying many extreme weather events Erosion, loss of o...