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Veseljchak [2.6K]
3 years ago
13

How are earthworms and fish similar?

Biology
1 answer:
dimaraw [331]3 years ago
3 0
Materials eliciting increased tongue flicking and prey attack in garter snakes were isolated from both earthworm and fish prey. New extraction methods based on chloroform-methanol mixtures are valuable adjuncts to the more typical aqueous preparations. Both high- and low-molecular weight components from earthworms and fish were active. The similarity between the active chemicals in these two classes of prey was established using several methods of analysis.
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What distinguishes disruptive and directional selection pressures when both select for extreme genetic traits?
Stella [2.4K]

Answer:

Yes both are different. In directional selection one of the extreme traits is favored, whereas in disruptive selection both the extreme traits are favored.

Explanation:

Directional: If selection acts to eliminate one extreme form and supports the other extreme then the peak shifts in the direction which is selected by the nature.

Disruptive: If the selection does not favor the mean character value, rather favors both the peripheral character values then this kind of selection is called disruptive selection.

5 0
3 years ago
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What is the definition of taxonomy?
tensa zangetsu [6.8K]

Answer:

Option (C) is the correct answer.

Explanation:

Taxonomy: It is a process of classifying, organizing, and naming things such as plants, animals, microorganisms, and other living things.

Carolus Linnaeus a father of taxonomy,

Taxonomy utilizes hierarchical arrangement.

There are eight taxonomic categories:

Domain

Kingdom.

Phylum.

class.

Order.

family.

genus

Species.

 

6 0
3 years ago
What are the characteristics of the phylum chordata
erik [133]

Answer:

Characteristics of Chordata. Animals in the phylum Chordata share four key features that appear at some stage during their development: a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post- tail (Figure 2). In some groups, some of these are present only during embryonic development.

8 0
3 years ago
Penicillin is an antibiotic drug that interferes with peptidoglycan synthesis in bacteria, eventually resulting in cell death. W
EastWind [94]

Since penicillin interferes with peptidoglycan synthesis, it means that the drug will have no effects on archaea.

<h3>Archaea cell walls</h3>

The cell wall of archaea consists mostly of polysaccharides and glycoconjugates. In order words, the cell walls of archaea lack peptidoglycan.

Since penicillin kills bacteria by interfering with the synthesis of peptidoglycan, it simply means that the drug will have no effect on archaea, since they do not have peptidoglycan in their cell walls.

More on archaea can be found here: brainly.com/question/1475001

3 0
3 years ago
How are cells in a multicellular organism able to achieve homeostasis? . A. They are uniform in function and work independently
SashulF [63]
Hello!

Multicellular organisms are able to achieve homeostasis because they cells are specialized in function and work cooperatively with one another.

Letter d)

Hugs!

7 0
3 years ago
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