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MAXImum [283]
3 years ago
10

check all that apply. Mutations _____. A. are random B. delete genes from the gene pool C. add new genes to the gene pool D. are

changes in an organism's DNA E.are rare occurrences
Biology
1 answer:
nataly862011 [7]3 years ago
3 0
I'm pretty sire the answer to this would be 
c. <span>add new genes to the gene pool </span>
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A dog experiencing a high level of fear will usually exhibit
Cerrena [4.2K]
I believe the correct answer is D. <span>ears pinned back, eyes averted or lowered, and lips pulled back and down.
When dogs are afraid, their ears are lowered to show fear because of something they may have done wrong. They are also scared or embarrassed to look at their owner because they know they will receive some sort of punishment. Their tail is also usually tucked between their legs to show they are afraid.
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8 0
3 years ago
If 20% of the long-tailed cats got their tails stuck in something and failed to reproduce, what would be the expected change in
den301095 [7]

Complete question:

Phenotype               Genotype         Number of Individuals

Long-tailed                     TT                               260

Long-tailed                      Tt                                160

Short-tailed                      tt                                 80

If 20% of the long-tailed cats got their tails stuck in something and failed to reproduce, what would be the expected change in frequency of T in the next generation

Answer:

The expected change in allelic T frequencies probably changes from 0.6 to 0.57 in the following generation.  

Explanation:

Due to technical problems, you will find the complete question, answer and explanation in the attached files.

Download pdf
7 0
3 years ago
When the protein gramicidin is integrated into a membrane, an H+ channel forms and the membrane becomes very permeable to proton
Naddika [18.5K]

Answer:

The electron transport chain may be defined as the sequential steps of the oxidation and reduction of the cytochromes. The electron transport chain is important for the production of ATP.

The gramicidn protein is an ionophoric antibiotic that can affect the electron transport system. The electron transport rate, oxygen uptake and proton pumping remains the same as more hydrogen ions will enter in the cell.  But the ATP synthesis rate might decrease and completely stop by using gramicidin.

8 0
3 years ago
Name two primary decomposers and describe their function in the recycling of life materials 125 words.
Sloan [31]

Bacteria and Fungi  are the two primary decomposers

Explanation:

<u>Bacteria: </u>Bacteria are known as microscopic single celled organism. Their existence is between inside as well as outside the organism. The use of bacteria is in medical and industrial processes. They are first organisms in earth. Bacteria can survive in worst condition. There are huge number of bacteria. So, it is classified according to their structure and shape.

The life cycle of bacteria can be divided into log phase, lag phase, the stationary phase and Death phase. In lag phase bacteria don’t grow they produce amino acid and protein and make copies of DNA. They make themselves ready for division. In log phase bacteria rapidly multiply itself through binary fusion. In the stationary phase the growth of bacteria is dwindles because of lack of space and accumulating waste. The last phase is death phase where bacteria loss its ability of reproduction.

<u>Fungi:</u> Fungi is same like bacteria play vital role in ecosystem. They are also decomposer. The first way of fungi life cycle is based on spore phase. They begin with haploid. They have one copy of all their genetic material. The second stage is mycelium stage where fungi reproduce asexually.  

7 0
3 years ago
What is the definition of a homologus structure​
Pavlova-9 [17]
Organs or skeletal elements of animals and organisms
3 0
3 years ago
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