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Sindrei [870]
3 years ago
5

8

Biology
1 answer:
ZanzabumX [31]3 years ago
8 0
The best answer should be B.

Apparatus in laboratories can be really dangerous, especially the ones which involves electricity.

As a student, he should not just wrap the cord with electric tape, as he might wrap them in a wrong way and possible could hurt himself. So A is not a good answer.

And for C, even though it is a great idea not to use the frayed cord hot plate, but he should also notify the teacher as that hot plate with frayed cord may be passed on and be used for the other students which may pose a risk to them.

And obviously, using the hot plate with frayed cord is super dangerous and he could possibly get electric shock. So D is the incorrect answer.

And it's only left to B, it right to notify the teacher so the teacher can actually either fix it themselves or they wouldn't pass on to other students to use it.
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The Eocene period exists in Earth’s history around 34 MYA. What could a scientist do to determine what era the Eocene period bel
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Answer:

To understand what era the Eocene period belongs to on the geologic time scale, the scientist would have to examine the Cenozoic era to understand all information related to it.

Explanation:

First, let's start with an explanation of terms.

  • MYA simply means Millions of Years Ago
  • Time Scale is a sequence or organisation of events which is used as a yardstick to measure the duration of history or how long the earth has existed.
  • Eocene Period refers to the geological epoch that lasted from about fifty-six to approximately forty MYA. It is also defined as the second epoch of the Paleogene Period within the modern Cenozoic Era.  

Given the definition of the Eocene Period, to understand what era an Eocene period belongs to, the person must carefully study the Cenozoic era.

Cheers!

8 0
3 years ago
In humans, the allele for dimples (d) is dominant to the allele for no dimples (d). at another gene locus, the allele for broad
swat32

Assuming you mean to type:

 

"In humans, the allele for dimples (D) is dominant to the allele for no dimples (d). at another gene locus, the allele for broad eyebrows (B) is dominant to the allele for broad eyebrows (b)."

 

Man: Heterozygous for both genes means DdBb

Woman: no dimples, and heterozygous for slender eye-brows means ddBb

 

Punnett Square

 

         DB       Db         dB        db

dB   DdBB   DdBb    ddBB    ddBb

dB   DdBB   DdBb    ddBB    ddBb

db    DdBb    Ddbb    ddBb    ddbb   

db    DdBb    Ddbb    ddBb    ddbb   

 

Interpretation: anywhere that has a capital letter has the dominant trait.

Dimples+Broad eyebrows : 6 cases out of 16  (3/8=37.5%)

Dimples+slender eyebrows: 2 cases out of 16  (1/8=12.5%)

No dimples+Broad eyebrows: 6 cases out of 16 (3/8=37.5%)

No dimples+slender eyebrows: 2 cases out of 16 (1/8=12.5%)

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Gene pool is the variety and available genes in a specific population of a species .
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the answer is D atomic

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