Match each stage of demographic transition with its correct description. Match Term Definition Stage 1 A) Low birthrates, low deathrates, higher quality of health services and family planning options Stage 2 B) High birthrates, decline in deathrates, increased health services but limited family planning options C) High birthrates, high infant mortality rate, no health services or family planning options Stage 3

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A: child with brown hair chances 1/2    child with blue eye color chances 1/4    probability of child h...

Q: What advantage do fluorescent dyes and fluorescence microscopy provide in comparison to the chemical...

A: Microscope is the widely used laboratory instrument in the molecular biology, it is mainly used to e...

Q: n a population of rabbits, half of the rabbits are brown and half are grey. Because male and female ...

A: natural selection is an evolutionary process where organisms adapt to their changing environment and...

Q: Why is the growth curve for most populations S-shaped?

A: A growth curve is a graph depicting the progression of an event through time. The number of organism...

Q: 3. Cross a man with type B heterozygous blood with a woman with type O blood. What are the possible ...

A: Introduction :- A blood type is a type of blood classification based on the presence or absence of a...

Q: 1. What is the importance of fossils in determining the history of life on Earth?

A: As per our honor code, we are allowed to answer one question at a moment. You have posted multiple q...

Q: what is sex and what are the steps of doing it ?

A: Sex is a type of response that comprises four distinct phases and these are: Excitement Plateau Org...

Q: Define about DNA Transposons ?

A: DNA is a material found inside cells that transports genetic information and transmits it from gener...

Q: Which of the following is the most fundamental feature that enables the cell to function as a distin...

A: Cell is the basic entity of life. It is the most fundamental unit of life. Cells constitute to make ...

Q: "Polymerase binding is never very efficient unless CAP is alsopresent to facilitate the process". Ex...

A: A functional unit of DNA comprising a cluster of genes controlled by a single promoter is called an ...

Q: The culture primarily contains nutrients such as sugars and a gel (agar). Why don’t viruses grow in ...

A: Culture media are an integral part of the microbiology lab. There are various kinds of media used in...

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A: The Punnet square is a square diagram made out of four boxes arranged in a grid. Reginald C. Punnett...

Q: What are the diagnostic criteria for type II diabetes?

A: Ans- Type -2 diabetes is the condition that results from the insufficient production of the insulin ...

Q: Illustrate the relationships among the membranes and compartments of (a) mitochondria and (b) chloro...

A: Cell organelles can be described as the organs located in living cell’s cytoplasm. Organelles of dif...

Q: Effects of GSI on NOTCH1 and NICD1 expression?

A:

Q: paedomorphosis,

A:  Pedomorphosis is an alternative process to metamorphosis in which adults retain larval traits at th...

Q: I. 3 4 II. 1 2 3 4 III. In the pedigree above, there could be carriers that are not marked. For each...

A: Pedigree analysis is the diagrammatic representation of the genetic inheritance of a trait of a fami...

Q: Which of the following best states a condition which promotes natural selection of a species? Group ...

A: Natural selection is a process through which the population of living organisms adapt and change. Fo...

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Q: Read the following extract: “Atmospheric ions are electrically charged particles which occur natura...

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Q: need to understand how to know which is 5' overhand and which is 3' overhang

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A: Chlorophyll: it is natural pigment present in green plants. It helps the plant to utilize the sunlig...

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A: Grains are the seeds of grasses, and the major grains include corn, wheat, rice, and oats. Others in...

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A:

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A: Recombination of genes during meiosis occurs by the process of crossover.  

Q: 5. Why is there always a loss of chemical energy with each step in a food chain?

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A: A cell is a mass of cytoplasm that is bound by a cell membrane. Generally smaller in size, cells are...

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Q: b. all of their children have porphyria pologi 1 no mol molOu 1 malo with pornhuria

A: Answer - {b} all of their children have porphyria. 

Q: Which of the following statements about secondary succession is TRUE: A It leads to a stable, persis...

A: Secondary succession is a type of ecological succession in which a previously occupied habitat is re...

Q: What are the advantages and disadvantages of using the Wet Mount technique? Please elaborate further...

A: A wet Mount technique is a slide prepared to view the organism in its natural form by suspending a s...

Q: Examine the human karyotype shown below. In the space provided, A) identify the sex of the individua...

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Q: Do you agree withe the advancement of genetic engineering? Explain your answer.

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Q: How antiterminator hairpin is formed ?

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A: Barr body: it is defined as a condensed X chromosome which is stained densely and inactivated. It is...

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A: Fertilization is the process of combining haploid gametes (sperm and egg) to generate a diploid zygo...

Q: Name several general characteristics that could be used to define the prokaryotes.

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Q: what are the genotypes of the offspring?

A: Genetics is a branch of biology that tells about genes, genetic variation, and heredity in living th...

Q: Why it is essential to the positive stimulation of transcription of the lac operon ?

A: Lac operon includes the genes that code for the enzymes involved in lactose catabolism.

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A: Hinged jaws: There are the type of jaws in which the upper jaw bone of the animal is joined to the c...

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A: Vaccine: it is also known as disarmed pathogen because, it is made up of weakend, killed, fragmented...

Population Growth

R and K Selection

R and K selection are concepts in ecology used to describe traits in the fluctuation of a population or population dynamics. For example, they describe the life-association traits between parent and offspring, such as quantity or number of young ones born at a time, quality of parental care, the age to maturity, and reproductive effort.