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Leni [432]
3 years ago
9

Which two characteristics are examples of endoskeletons

Biology
1 answer:
Mekhanik [1.2K]3 years ago
6 0
Hihi!

The answers are that there are bones in mammals and inside of echinoderms there are calcium rich plates! If you have any further questions please feel free to message me!

I hope I helped!
-Jailbaitasmr
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Ari drew a diagram to show organisms in an ecosystem. What did Ari draw?
Alexandra [31]

Answer:

food web

Explanation:

Food web is an interconnection and assimilation of different good chains. Many food chains are interlinked a hence a food web is created. This represents what is eaten by which organism. The diagram that Ari had drawn is a diagram of a food chain. The grass is the primary source of food in the food web. Rabbit, Mouse, and grasshopper are the animals that eat the grass. The grasshopper is eaten by a shrew and a mouse. The rabbit and shrew are then eaten by the fox. A mouse is eaten by a snake and a fox. This is the diagrammatic representation of a food web.

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3 years ago
The human body contains nitrogen (N2) as part of amino acids, ATP, DNA, and RNA. The
lutik1710 [3]

Answer:

its D.

Explanation:

Bacteria change nitrogen gas to useable compounds that can be absorbed by plants.  

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3 years ago
Which best describes niches?
irga5000 [103]

Answer:

a niche is a specific area if habitation where an orgnism perfoms its daily activities

4 0
3 years ago
) You treat some cells with a proteolytic enzyme that is too large to penetrate the cell membrane (Set 1). Another group of cell
Advocard [28]

Answer:

Proten W

Explanation:

SDS-PAGE gel is a method used for the separation of proteins in which proteins are separated based on their length (smaller proteins move faster through the gel, due to less resistance).

When treated with proteolytic enzymes, proteins are cut and become short fragment. This means that the fragments formed after the use of proteolytic enzymes, will move faster and thus, migrate a longer distance. Proteolytic enzymes in Set 2 cells will act only on plasma membrane proteins (because they cannot penetrate), while in Set 2 they will act on both, plasma membrane and interior proteins. Control group will have only the large fragments (not treated with enzyme).

Protein W travels the same distance on a gel of proteins from Set 1 and Set 2, but different than control group. It means that the proteolytic enzyme worked the same on Set 1 and Set 2.

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3 years ago
Which fungi are used in medicine?<br> yeast<br> penicillium<br> aspergillus<br> Rhizopus stolonifera
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