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Arturiano [62]
4 years ago
6

What safety precautions should you take when working with acetic anhydride?

Biology
1 answer:
vlada-n [284]4 years ago
7 0

Acetic Anhydride poses a hazards from exposure to mouth, nose and throat, skin, eyes that can cause cough, shortness of breath, sore throat, skin burns, blisters, redness and pain in the eyes, abdominal pain and shock.

when working with acetic anhydride, safety precautions include:

<span>1.       </span>REFRAIN from any form of CONTACT. Wear protective clothing, gloves, goggles and face shield/ breathing protection.

<span>2.       </span>Provide adequate ventilation.

<span>3.       </span>Avoid open flames and smoking.

<span>4.       </span>Use explosion-proof electrical equipment.

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Please help with just part one and punnet square
Inessa05 [86]

The earlobe trait is denoted by E and e alleles, whereas the eye trait is denoted by B and b alleles. The Punnet square allows identifying the expected proportions in the progeny.

<h3>The Punnett square and inheritance </h3>

The Punnett square is a diagram used to represent the gamete combinations in order to estimate genotypes and phenotypes in the progeny.

The earlobe trait is denoted by E and e alleles, thereby there are two types of gametes in heterozygous individuals.

In this case:

           E            e

E        EE          Ee

e       Ee          ee

Moreover, the eye trait is denoted by B and b alleles, thereby there are two types of gametes in heterozygous individuals.

In this case:

           B            b

B        BB          Bb

b       Bb          bb

Learn more about Punnett square here:

brainly.com/question/9582290

5 0
2 years ago
The grants data showed that natural selection takes place
Svetradugi [14.3K]
<h3><u>Answer;</u></h3>

D) frequently, and sometimes rapidly

<h3><u>Explanation;</u></h3>
  • The hypothesis that the Grants have been testing was about the natural selection shaping the beaks of different bird populations.
  • <em><u>The Grants documented that natural selection takes place in the wild finch population frequently, and sometimes rapidly. </u></em>
  • The Grants' work showed that variation within a species increases the likelihood of the species' adapting to and surviving environmental change.
8 0
4 years ago
Consider two soil samples one from a tropical rain forest and the other from a temperate deciduous forest. Predict which sample
Finger [1]

Answer:

Temperate deciduous forest

Explanation:

rain forest soil is highly acidic as its what trees there rely on for absorbing nutrients. The type pf clay present there also has poor ability to trap nutrients so they usually get washed away. Its almost the opposite for deciduous forests.

7 0
3 years ago
What is a stop codon​
storchak [24]

Answer:

In the genetic code, a stop codon (or termination codon) is a nucleotide triplet within messenger RNA that signals a termination of translation into protein

Explanation:

Proteins are based on polypeptides, which are unique sequences of amino acids. Most codons in messenger RNA (from DNA) correspond to the addition of an amino acid to a growing polypeptide chain, which may ultimately become a protein. Stop codons signal the termination of this process by binding release factors, which cause the ribosomal subunits to disassociate, releasing the amino acid chain. While start codons need nearby sequences or initiation factors to start translation, a stop codon alone is sufficient to initiate termination.

4 0
3 years ago
Read 2 more answers
A small, potentially living object was found. For this object to be considered alive, the object must________.
ycow [4]

Answer:

For the object of to be considered alive , it must have DNA and all the characteristics of living things.

Explanation:

If one is to determine whether the object is alive or not the object should possess all the properties of living things. firstly, it should have the genetic material the DNA without which the cell can't be alive or the nucleus in case of PROKARYOTES. it should have the ability to reproduce, move , to grow and to excrete without which it would not be considered alive.

7 0
3 years ago
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