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erastovalidia [21]
3 years ago
10

Which of the following choices are all abiotic factors of a freshwater ecosystems?

Biology
1 answer:
LenaWriter [7]3 years ago
4 0
I think can be water, light, temperature, nutrients


Hope help!
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Explain the three steps in DNA replication.
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Initiation, elongation, and termination
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2. Running water can be used as an energy<br> source to produce _____<br> power.
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running water can be used as an energy source to produce hydroelectric power.

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As of 2010, there are 118 known elements. of those, how many are believed to be essential to human biology?
Fantom [35]

From the 118 known elements, 25 elements are believed to be essential to human biology.

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6 0
3 years ago
Can you identify the supergroups to which these protists belong?
uranmaximum [27]

Protists and Supergroups

Diatoms – SAR - Stramenopila

Foraminiferans – SAR  - Rhizaria

Plasmodial slime molds - Unikonta  - Amoebazoans

Trichomonas vaginalis - Excavata - Parabasalids

Giardia intestinalis - Excavata - Diplomonads

Dinoflagellates - SAR -  Alveolata

Green algae - Archaeplastida- Chlorophytes

Brown algae - SAR-Stramenopila

Explanation:

Protists are the simplest eukaryotes. Due to their vast diversity of species, they are broadly divided into four supergroups or the clades. They are the Archaeplastida, Excavata, SAR clade, and Unikonta.

Archaeplastida: Interrelated with DNA sequence, cell structure, and endosymbiotic relationships. Divided into red algae, chlorophytes, charophyceans, and the plants. Eg, red algae, green algae, plants.

Excavata: Protists with cytoskeletal features like excavated grooves. This clade includes diplomonads, parabasalids, euglenozoans. Eg., Trichomonas and Giardia species

SAR: Protists interrelated with their DNA sequences and endosymbiotic relationships. Further divided into alveolata, stramenopila, and rhizaria. Eg., diatoms, dinoflagellates

Unikonta: Protists with flagella like structures, pseudopodia, genes fused together. Divided into amoebozoans and opisthokonts. These include slime molds, fungi, entamoebas, animals etc.

5 0
4 years ago
How is it possible for someone to put an ear to a wall and hear someone in the next room? A. Sound waves can travel though solid
Effectus [21]
A. Sound waves can travel through solids... sound waves travel fastest through solids :)
7 0
3 years ago
Read 2 more answers
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