Describe the kinds of evidence about the history of life that canbe found in sedimentary rock formations.

Q: Black body (b) and purple eye (pr) are recessive autosomal mutations in Drosophila. Bridges are cros...

A: b - allele for black body - recessive pr - allele for purple eye - recessive B - wild type for body ...

Q: :In bacterial culture media, agar is used as An additional nutrient .a Buffer .b A solidifying agent...

A: Agar is used in laboratory to help, feed and grow microorganisms. It is used in laboratory for exper...

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

A: In this question we will discuss about the importance of the water, carbon and nitrogen for living o...

Q: you were trying to locate where a gene resided on a chromosome, you would be looking for the gene's ...

A: Phenotype is the expressed character trait of an organism Allele is the genetic equivalent of a trai...

Q: Brainstem-Controls breathing and heart rate Test 1: Whole Brains (not to scale) Mouse Cat Baboon Hum...

A: Cerebellum is the part which is located at the back of brain underlying the occipital and temporal l...

Q: The three types of neurons in the nervous system of humans are O synaptic neurons, motor neurons, an...

A: Neuron Also known as nerve cell. It is an electrically excitable cell that processes and transmits ...

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

A: *Mosquitoes are vectors for mamy diseases like malaria and chikungunya abd Zika virus and yellow fev...

Q: The dinosaurs died out______ million years ago

A: Introduction:- Dinosaurs are a diversified group of reptiles that dominated Earth's terrestrial life...

Q: 50 um

A: Meiosis is of two types Meiosis 1 Meiosis 2 * Meiosis 1 has the following stages Prophase 1 Metap...

Q: Most flour beetles are black, but several color variants are known. Crosses of pure-breeding parents...

A: Introduction The first filial generation is the F1 generation, and the second filial generation is t...

Q: A broth culture is initially inoculated with a single bacterial cell. For the first hour the bacteri...

A: * Given that  The bacteria has generation time of 30 minutes. So it takes about thirty minutes to di...

Q: A population ecologist might study the effect of an introduced predator on the _________ of particul...

A: Introduction: A predator is an animal that kills and eats other animals. Examples of predators are l...

Q: The total number of geneotypes in a population is called a.Genetic drfit b.Gene pool c.Phenotypes d....

A:

Q: _1. It is the important organ that controls thought, memory, emotion, touch, motor skills, vision, b...

A:

Q: As global average temperature increases, which of the following regions is expected to experience th...

A: Global warming is a phenomenon in which the earth's global temperature is increased due to the emiss...

Q: In your own understanding, Indentify the hurdles that may help to lengthen the shelf-life of squash ...

A: The shelf- life of a product depends upon the condition in which the product is being placed. Better...

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 Arthrobacter luteus ?

A: Prokaryotes are organisms with no well-defined nucleus.  

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...

Q: Four homozygous recessive mutant lines of Drosophilamelanogaster (labeled 1 through 4) showed abnorm...

A: Introduction Heterozygous means that you have inherited various versions of a gene from each parent....

Q: Four E. coli strains of genotype atb¯ are labeled 1, 2, 3, and 4. Four strains of genotype a¯b* are ...

A: Introduction :- Escherichia coli (E. coli) is a type of bacteria that can be found in the environmen...

Q: How does the vegetal stratification of an ecosystem influence its biological diversity?

A:     Stratification in the field of ecology refers to the vertical layering of habitat. The arrangeme...

Q: Miguel went to the dentist, who performed a procedure that eliminated his tooth pain. The next time ...

A: There is a relationship between the stimulus and the behaviour. Our behaviour can change according t...

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: IS THERAPY USING CRISPR TECHNIQUE PERFORMED ON AN ENTIRE ORGAN , A REGION OF THE ORGAN , OR THE ENTI...

A: Introduction :  CRISPER - Cas 9 -  CRISPER is a RNA sequence and Cas9 is nuclease that can cleave an...

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: Which is NOT a component of a Gram-positive bacterium's cell envelope? ○ peptidoglycan ○ N-acetylm...

A: Bacteria are classified according to their nature of cell wall into Gram positive and Gram negative ...

Q: Define  the terms "Prolonged engagement" and "Persistent observation" and explain how these terms ar...

A: Prolonged engagement is defined as spending a significant amount of time with respondents in their n...

Q: describe why fehling's test is not an accurate for blood-glucose levels?

A: Fehling's solution is a substance reagent used to separate between water-solvent carb and ketone use...

Q: Given the following information about the inheritance of characteristics in pea plants, answer the q...

A: Note - we are supposed to answer one question with three subparts according to our guideline.  Pleas...

Q: Type answer please (this is about plants btw) information about plants responses to light outside ph...

A: Photoperiodism It has been observed that some plants require periodic exposure to light to induce fl...

Q: A.If the diploid human chromosome number (2n) =46, what will be the chromosome number per cell in ea...

A: Meiosis is the cell division process that involves division of a diploid (2n) mother cell and produc...

Q: Aside from Dengue Fever what other diseases can Aedes aegypti carry

A:

Q: 8. Which of the following is the longest entity O reads contigs O scaffolds O bases

A: These options represent the various size of base sequences. 

Q: PCR can be used______ . a. as a cloning vector b. in DNA profiling c. to modify a human genome

A: DNA is the genetic material present in the cells of living beings.  

Q: What is the significance of putting scale bar in photomicrographs?

A:  Scale bar:A scale bar is an instrument or software that attaches to a slide or image when it is imp...

Q: How do populations of predators and prey vary in predatism

A: Introduction Whenever a predator population increases, the prey population tends to decrease at firs...

Q: Which of the following statements about the lac operon is correct? 1. lacZ, lacY and lacA proteins a...

A: Introduction :  Lac Operon -  Regulatory gene is Lac I . Structural genes are lacZ,  lacY and lacA. ...

Q: in your own words,  describe the squash soup in terms of appearance, color, size, shape, texture (fi...

A: Squash soup is made from a wide varieties of squash which provides it a appetizing flavor. Along wit...

Q: Seven to nine testes in rows: * which is the following the crrect schistosomes     Schistosoma manso...

A: Schistosoma mansoni is a water borne blood parasite which belongs to the group of blood flukes gener...

Q: What are the typical features of the age yramids of underdeveloped countries?

A: Definition:- The Age Pyramid is a graphical representation of distribution of populations of a parti...

Q: Using appropriate examples, describe some of the ways thatgenetically engineered microorganisms are ...

A: Genetic engineering modifies the genome of organisms.  

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

A: There are three postulates of differential gene expression, two of which states that -  1. Every nuc...

Q: 21. What are two ways by which SARS-CoV-2 disguises itself from detection by its host-cell's immune ...

A: SARS CoV 2 is a RNA virus, members of large family of virus called corona virus. This virus mainly i...

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: Which among the processes below will be used during heat defense? vasodilation and thermogenesis O s...

A: vasodilation work against heat as sweating does  When heat produce in body to balance the body tempe...

Q: Select all the characteristics that apply to BACTERIA but not Eukaryotes. □ lack membrane bound-org...

A: Introduction: Bacteria is a single celled prokaryotic organism. Their cell structure is simpler than...

Q: Tay–Sachs disease is caused by recessive alleles on anautosome. In which case(s) could two parents w...

A: Dominant allele is one that always expresses its phenotype. Recessive allele is one that is expresse...

Q: In the experiment of cell fusion, when tumor cells were fused with normal cells, the initially forme...

A: Cell fusion is an important cellular process in which two or more uninucleate cells merge to form a ...

Q: 7. How is Genomics different from genetics? *

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

Paleontology

A branch of science concerning the scientific study of life from ancient times is known as paleontology. The scientists working on paleontology are known as paleontologists. Paleontologists collect the fossils of organisms from ancient times to classify them. The paleontologists also study the environment from ancient times to study the interactions between different organisms.