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Which of the following is an example of using a control in a scientific investigation

a. using a wide range of temperatures during an experimentb. studying animals in different habitats and under different circumstancesc. keeping a chemical’s concentration the same in all parts of an e

For DNA isolation, how long should you use the same tube of TENS and at what temperature should it be stored

with EDTA and Tris-base and SDS in it, you could probably use it up.to limit the possibility of nucleases from external sources, i would use it for about a week, depending upon how many preps you do.s

What Household item represents the function of a liver

Water filter-Sieve

Genetics..please help me sooo urgent!!!!!!!!!!!!!!!!!!!!!!!!!!

In peas the allele for round seed (R) is dominant over the allele for wrinkled seed (r). The allele for yellow seed (Y) is dominant over the allele for green seed (y).If two pea plants with the genoty

Which of the following is NOT a component in cell walls of at least some bacteria? Choose one answer.

a. an outer membrane. b. lipoproteins. c. cellulose. d. lipopolysaccharides. e. peptidoglycan. Thanks!-I believe that c. cellulose would be the correct answer, since bacteria do not have cellulose ce

Anatomy Pictures of Bones, Organs, the Heart - Is there a Medical Anatomy book for the Musculoskeletal System

You could look into a book like The Atlas of Musculoskeletal Anatomy that has pictures of bones, joints and muscles in addition to comprehensive medical detail. Alternatively, I can recommend one of

What do you think would happen if humans used more than 10% of their brains

I know, totally random question but it was the discussion topic in my psychology class this morning and it really has me thinking. Do you think people would have access to more than 5 senses? The abil

Biology question help please

A scientist performs a controlled experiment. This means that A) the experiment is repeated many times to ensure that the results are accurate. B) one experiment is performed, but the scientist contro

Evolution Question~Help

In terms of evolution, would a species that lives in a climate that has undergone drastic changes evolve more than a species that lives in a climate that has remained the same? Or would it evolve less

BIO HELP! SOMEONE WANT TO HELP ME AT LEAST ONCE!!!!!!!!!!!!!!

Which of the following characteristics of the Archaea is also true of Bacteria? Choose one answer.a. Cell walls lack peptidoglycan. b. Include chemoautotrophs and chemoheterotrophs. c. Histones are pr

Hereditary information is encoded in a single, circular DNA molecule in most prokaryotes. Which of the followi

Choose one answer.a. The bacterial chromosome has genes that control binary fission. b. Bacterial cells utilize a mitotic spindle to segregate their replicated DNA. c. Bacterial cells can replicate th

What is the structure of the sensory, motor, and interneuron

Im not sure what to write...-structure of all the neurons is basically the same. interneurons have highly branched dendrites and axons. all neurons have a cell body aka cyton or soma. they have a long

Anatomy and physiology question

Many potent insecticides contain toxins, called organophosphates, that interfere with the action of the enzyme acetylcholinesterase. Ivan is using an insecticide containing organophosphates and is ver

Convex mirror shop security

why convex could be useful in shop surveillance and rear vision mirrors-As convex mirror produces virtual image(image is formed behind the mirror n can be viewed by watching d mirror...n it also produ

Help me with this biology question please

All organisms belonging to the kingdom Plantae A) are photosynthetic and contain cells that are surrounded by cell walls with cellulose. B) are unicellular and lack a nucleus. C) are photosynthetic. D
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