4,064 Answered Questions for the topic biology

Biology Chemistry

10/14/20

Standard solution, serial dilution
Can someone please explain this for me?I have made a standard solution using 325mg of solute and dissolving it in water to make it up to 25ml. the conc = 13mg/mlThen I need to transfer 1ml of my... more
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Biology Science

10/14/20

8th Grade Science

Can a Compound and a Mixture be separated by physical means?
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10/14/20

Standard solution, working out concentration
Hi,So In a practical I used 325mg of a solvent and I dissolved this in water to make it up to 25ml.Now I have to work out the exact concentration of my ''stock'' solution in mg/l is it 0.013... more
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Biology Microbiology

10/14/20

Reverse transcriptase
Hi!I have one question!Is the enzyme reverse transcriptase that retroviruses need found in the retrovirus particle or inside our own cells (host cell)??
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Biology

10/14/20

Generally plants are heterotrophs which feed almost all the autotrophs on land

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10/14/20

Creating Dichotomous Keys
I need help making a dichotomous key for archaea and protists. It can be for specific species or for groups/subgroups of the kingdoms.
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10/14/20

Dichotomous Key
I need help making a dichotomous key for: archaea and protists. It can be for specific species or for groups/subgroups of the kingdoms.
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Biology

10/13/20

Hi! I am creating a speed dating profile for the smooth ER. I need a pick up line and a trendy hashtag. please help!
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Biology Genetics Meiosis

10/12/20

Meiosis, Predicting proportions
Hi, I am stuck on this question about meiosis; I'm wondering if anyone could help me?I was provided with two karyotypes, a male with a normal chromosome 18 load and a female with trisomy 18.The... more
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10/12/20

Can someone help me please?
A 45 year-old woman complaining of breast pain was diagnosed with having HER2-positive breast cancer. The patient underwent lumpectomy followed by a period of chemotherapy including adjuvant... more
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10/12/20

How to answer this question?
A 45 year-old woman complaining of breast pain was diagnosed with having HER2-positive breast cancer. The patient underwent lumpectomy followed by a period of chemotherapy including adjuvant... more
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Biology

10/12/20

In the belowreplication process, what enzyme is used to put what building blocks together?

How is complimentary base pairing used to assure proper placement of the building blocks? What bonds are formed to hold the structure together permanently? What enzyme creates this... more
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Biology

10/12/20

2.4.2Quiz: Enzyme Action: How Clean Is Your Laundry?
What is the purpose of ethical group guidelines for the handling of experimental subjects.
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10/12/20

Can someone tell me how I should answer this question?
A 45 year-old woman complaining of breast pain was diagnosed with having HER2-positive breast cancer. The patient underwent lumpectomy followed by a period of chemotherapy including adjuvant... more
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Biology

10/09/20

A student set up the following investigation.
A student set up the following investigation. An artificial membrane separates two fluid-filled compartments. This membrane is permeable to water but impermeable to sucrose. Both compartments... more
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10/08/20

Can someone help me please?
A 45 year-old woman complaining of breast pain was diagnosed with having HER2-positive breast cancer. The patient underwent lumpectomy followed by a period of chemotherapy including adjuvant... more
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Expert Answers •1

10/08/20

Can someone help me please?
A 45 year-old woman complaining of breast pain was diagnosed with having HER2-positive breast cancer. The patient underwent lumpectomy followed by a period of chemotherapy including adjuvant... more
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Biology Ecology

10/06/20

Plant life cycle

Which of the following patterns has been seen over evolutionary time in the alternation of generations?Group of answer choicesThe sporophyte phase has become multicellular.The gametophyte phase has... more
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Biology

10/06/20

Cellular respiration and photosynthesis are considered a cycle because the ___ of one reaction serves as the ___ for the other reaction.
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10/06/20

What’s the correlation (or is it still relevant) of ethnobotany to our modern day endeavors (as we are on the era of fast phased technology)?
What’s the correlation (or is it still relevant) of ethnobotany to our modern day endeavors (as we are on the era of fast phased technology)?
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Biology

10/05/20

CellBiology question

Nucleic acids contain information used to produce blank macromolecules that perform tasks in organism
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Biology

10/04/20

Cellular Respiration questions
How many total ATP can be made with 1 glucose by a heart or cardiac muscle cell? How many total ATP can be made with 1 glucose by a skeletal muscle cell? How many total ATP are made by kidney... more
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10/03/20

Pharmacology Nervous System Question 3
Does the Parasympatholytic increase, decrease, or has no effect on:Blood flow to skeletal musclesBlood GlucoseBlood PressureBronchial Smooth MuscleDigestionHeart RateInsulinMucus... more
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10/03/20

Pharmacology Nervous System Question 2
Does the Sympatholytic increase, decrease, or has no effect on:Blood flow to skeletal musclesBlood GlucoseBlood PressureBronchial Smooth MuscleDigestionHeart RateInsulinMucus SecretionPupilsSalivation more
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10/03/20

Pharamacology Nervous System Question
Does the Parasympathomimetic effect increase, decrease, or has no effect:Blood flow to skeletal musclesBlood GlucoseBlood Pressure Bronchial Smooth MuscleDigestion Heart Rate InsulinMucus... more
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