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3 years ago

Can modern phylogeny-based taxonomic systems ever produce a satisfactory phylogenetic tree based on DNA

Biology

1 answer:

Anna35 [415]3 years ago

7 0

Answer:

Phylogenetic (evolutionary) Tree

showing the evolutionary relationships among various biological species or other entities that are believed to have a common ancestor.

• Each node is called a taxonomic unit.

• Internal nodes are generally called hypothetical

taxonomic units

• In a phylogenetic tree, each node with

descendants represents the most recent

common ancestor of the descendants, and the

• edge lengths (if present) correspond to time

estimates.

Explanation:

Phylogenetic trees are usually based on morphological or genetic homology. A comparison of anatomical traits can reveal an evolutionary relationship among species. Taxonomy, the science of classifying organisms, is based on phylogeny. Early taxonomic systems had no theoretical basis; organisms were grouped according to apparent similarity.

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The fact that modern, sophisticated manufacturing innovations have enabled many firms to more easily customize their products an

IRISSAK [1]

Answer:

The correct word that should fit in this gap is technology.

Explanation:

The preliminary information about "modern, sophisticated manufacturing innovations..." is a definition of the impact of technology. Thus, these equipments used by the firms had dramatically reduced the prices for the targeted customers. This is an impact of "the technology." The article "the" is used because the innovations had been mentioned in the previous part of the sentence.

4 0

3 years ago

What is the importance of a system of classification of living organisms? *

eimsori [14]

Answer:

It helps in the identification of living organisms as well as in understanding the diversity of living organisms. Classification helps us to learn about different kinds of plants and animals, their features, similarities and differences. It enables us to understand how complex organisms evolve from simpler organisms

Explanation:

Hope this helps

8 0

3 years ago

During crossing over in meiosis, an incomplete exchange of genetic material occurs. this would most likely produce

Leona [35]

<span>During crossing over in meiosis </span>an incomplete exchange of genetic material occurs. This would most likely produce,a deficiency in one homologue and a duplication in the other homologue

5 0

4 years ago

PLEASE HELP QUICK!!!!! WILL GIVE BRAINIEST!!!!!!

Mashcka [7]

Answer:

atp

Explanation:

ATP is composed of ribose, a five-carbon sugar, three phosphate groups, and adenine , a nitrogen-containing compound (also known as a nitrogenous base). What class of organic macromolecules is composed of monomers similar to ATP? ATP directly or indirectly delivers energy to almost all metabolic pathways.

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3 years ago

Some microbes secrete small molecules that induce other microbes to settle nearby. When a certain number of individuals have ass

Lynna [10]

The question is incomplete as it does not have the options which are:

A. bioremediation

B. mutualism

C. quorum sensing

D. quorum settling

E. mass-settling

Answer:

C. quorum sensing

Explanation:

Quorum sensing is the gene regulation mechanism used by the bacteria to communicate with the other bacteria. The quorum sensing process depends on the number of bacterial cells or the density of the cells.

When the bacterial number increase in number then the bacterial cells send the signal to the nearby cells and and regulates the expression of the gene. In the given question, the same chemical signal process depends on the density of the cell and thus quorum sensing is correct.

7 0

4 years ago