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4 years ago

What is the effect of differential reproduction overtime?

2 answers:

6 0

The effect of differential reproduction is that there is a change of the population at the genetic level. Differential reproduction occurs because organisms have different levels of adaptation to the environment.

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Wewaii [24]4 years ago

6 0

Answer:

changes in a population's gene pool

Explanation:

Differential reproduction refers to organisms with best alteration which are more likely to survive. Thus, individuals who inherit features most fit for their environment are expected to leave more descendants than less fit individuals. As a result, adaptations become more recurrent through inheritance, so the fittest creatures have the genes to survive and reproduce.

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Mutations can be both harmful and helpful. Indicate which of these can be caused by a genetic mutation. A) AIDS B) influenza C)

ira [324]

Cystic fibrosis is a genetic mutation. It is one of the most common genetic diseases in the world. There is no cure for CF.

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3 years ago

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a. Why was it important in this case to identify Salmonella Typhi in the feces of the restaurant worker?

Rina8888 [55]

Answer:

Some other types of Salmonella cause typhoid fever or ... Most people with Salmonella infection have diarrhea, fever, and ..

Explanation:

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3 years ago

A scientist is examining an organism that feeds on decaying matter to gain energy for survival. What kingdom would be the best o

VARVARA [1.3K]

Answer:fungi

Explanation:fungi are heterotrophic plants. They are organisms that lack chlorophyll,true roots,stems and leaves .as a result they cannot produce their own food .they depend on dead and decaying matter for their source of energy, thus they are saprophytes.Fungi may be Unicellular or multicellular. They consist of harlike filaments of hyphae which fuses together and forms a mass of mycellium. Common example of fungi we see around us are mushrooms. Fungi feed by secreting digestive enzymes into their substrate and they absorb the nutrients that are broken down by the enzymes. Fungi are important because they help to rid the environment of dead matter by decomposing them. Matured fungi reproduce asexually by the means of spores

4 0

4 years ago

The length of linker DNA segments varies somewhat among organisms. The length of the linker DNA in sea urchin is 110 base pairs.

nasty-shy [4]

Answer:

362 nucleosomes

Explanation:

A nucleosome repeat is made up of the DNA (146 bp) wrapped around the core nucleosome particle and the linker DNA (110 bp as in this situation). We can conclude that, every repeat stands for 256 (146 + 110) base pairs of DNA.

We are given the length of the entire region to be 92,672 bp long,

To determine the number of nucleosomes to organize the region into the 10nm fiber structure

Let,

Number of nucleosomes =

the length of the entire region

------------------- -----

base pairs of DNA.

= 92,672

-------

256

= 362 nucleosomes

Therefore, 362 nucleosomes is needed to structure the region into the 10nm fiber structure.

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4 years ago

The coracobrachialis muscle originates on the __________.

Travka [436]

Answer:

Option C, coracoid process of the scapula

Explanation:

Coracobrachialis muscle is one of the essential muscles that is responsible for the movement of elbow along with biceps brachii and triceps muscles.

The coracobrachialis arises from the coracoid process of the scapula. It assists the elbow in flexion and internal rotation. Musculocutaneous nerve passes through the Coracobrachialis muscle and terminates at the lateral end of the cutaneous nerve of the forearm. However, the Coracobrachialis terminates at the humerus and its medial surface

Hence, option C is correct

8 0

3 years ago