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77julia77 [94]
3 years ago
8

Which is the best definition of a phylogenetic tree

Biology
2 answers:
kiruha [24]3 years ago
8 0

Answer:

The best definition of a phylogenetic tree is an evolutionary reference mark that groups a certain group of species that share characteristics and ancestors.

Explanation:

All right first of all the phylogenetic tree is an instrument to classify a certain group o species that share genetic or any type of characteristic. This species also share origin by their similitudes and this classification helps us realize the evolutionary history of each species. It is a very good instrument to create a genetic and evolutionary universe.

slega [8]3 years ago
7 0
A phylogeny tree<span> or evolutionary </span>tree<span> is a branching diagram or "</span>tree<span>" showing the inferred evolutionary relationships among various biological species or other entities—their </span>phylogeny<span>—based upon similarities and differences in their physical or genetic characteristics.</span><span />
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The lungs remain inflated because ___________.a. intrapleural pressure is exactly equal to atmospheric pressure b. intrapleural
kkurt [141]

Answer:

Option C,  Intrapleural pressure is less than intrapulmonary pressure

Explanation:

During inspiration, the air enters the lungs due to lower pressure in the intrapulmonary or intra-alveolar  than the atmospheric pressure. During quite respiration, the intrapulmonary pressure reduces to a pressure that is 3 mm Hg lower than that of atmospheric pressure. During quiet expiration, the intrapulmonary pressure rises up to a pressure that is 3 mm Hg higher than that of atmospheric pressure. This leads to lack of air in the intrapleural space thereby producing intrapleural pressure which is lesser than that of intrapulmonary pressure.  

This difference in pressure (i.e higher pressure with in the lungs than the atmosphere)  causes lungs to remain attached to the chest wall and hence looks inflated.  

Hence, option C is correct

8 0
3 years ago
A group of organisms that belong to the same species and live in the same place
faltersainse [42]
This can be identified as a population. In a population, the organisms are the same species and they have to live in the same area. For example, the population of cities are the head count of the species of human in that one area.
8 0
4 years ago
Stimuli alter the activity of excitable sensory cells via
Mashutka [201]

The stimuli alter the activity of excitable sensory cells via Transduction.

Transduction is the method by which a virus transmit genetic material from one bacterium to another.

<h3>What is Transduction?</h3>

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-The formation of the transducer phage particle, the genetic material is introduced inside the capsid of a phage.

To learn more about Transduction click here;

brainly.com/question/12974399

#SPJ4    

4 0
2 years ago
Which of these conclusions is correct about the cities whose temperatures were measured by the students?
Sati [7]

Answer:

If i had more info, id have a better answer. But based of luck and guessing, i am going to go with c) almost 50% of the cities have an average monthly temperature less than or equal to 35 degrees C.

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

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5 0
4 years ago
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Crossing-over can occur during meiosis I in:
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b. metaphase l.

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3 years ago
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