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Murljashka [212]
3 years ago
15

why are such different animals as fish amphibians reptiles birds and mammals grouped into a single phylum

Biology
2 answers:
Andrew [12]3 years ago
5 0

Answer:

Since they share common body plan (triploblastic and bilateral symmetry) and also have common key characters such as presence of notochord at any stage of their life cycle.

Explanation:

Organisms such as fish amphibians reptiles birds and mammals are grouped under phylum Chordata as they share common body plan and key characters. They all are triploblastic with three primary germ layers, bilateral symmetrical organisms that have the organ system level of body organization. These organisms have notochord, tubular nerve cord and pharyngeal gill slits at any stage of their life.  

Hence, they are grouped under the same phylum.  

lora16 [44]3 years ago
4 0
Basically because they either have beating hearts, organs, skeletons, and more that plants and other things do not

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Explain with examples of each, how both physical and chemical weathering, along with erosion, can change Earth's surface.
Lena [83]

Answer:

Both physical and chemical weathering, along with erosion, can change Earth's surface as physical weathering allows breakdown of rock into smaller pieces, these pieces can be move from one place to another through water, wind or ice (erosion), and when the smaller pieces will settle down at a place, rain water can react with the soil or smaller rock pieces to form rock minerals.

For example: Running water, wind, and rapid heating/cooling allows the rocks to break down into smaller pieces or grains (physical weathering), then the small grains are transported and settled away from the source area through wind or river (erosion), and at the end the surface area exposed to air  for chemical weathering.

7 0
3 years ago
The use of drugs during radiological procedures and other medical tests to show evidence of a disease is known as ________.
Papessa [141]

Answer:

Diagnosistic use

Explanation:

When a person goes to the hospital displaying signs and symptoms of a disease. The doctor will have to make a diagnosis.

Diagnosis is made to determine or explain which disease or condition is causing the symptoms.

Drugs that are used during radiological procedures and other medical tests will be used of Diagnostic purpose to show evidence of a disease.

From the results of the Diagnostic tests a conclusion came be made.

Therefore, they were for Diagnosistic use.

6 0
3 years ago
Viruses need host cells to replicate<br><br> true or false
andreev551 [17]

Viruses depend on the host cells that they infect to reproduce. When found outside of host cells, viruses exist as a protein coat etc.

true.

3 0
3 years ago
The sugar glider in Australia and the flying squirrel in North America are both small mammals with large expanses of loose skin
Flauer [41]

Answer:

Each have adapted in very similar ways to similar habitats.

Explanation:

According to Darwin, given a similar set of conditions, two different organisms can adapt in the same direction. Here, the sugar glider inhabits Australia and the flying squirrel inhabits North America. There is a huge distance between their locations and also they are two different species with no direct evolutionary relation. However, because of the similar conditions present in their habitats, they developed same traits over the time. Both of them live in forested areas so they developed loose skin between their limbs which allowed them to glide freely between the trees.

3 0
4 years ago
POR FAVOR ME AJUDEM. PRECISO PARA AMANHÃ :,(
podryga [215]

Answer:

is it possible you can put this in english

8 0
3 years ago
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