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2 years ago

Which food preservation technique is Paul using?

Biology

1 answer:

laiz [17]2 years ago

6 0

Answer:

Paul uses Irradiation. The technique uses gamma rays

Explanation:

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Hypothesize whether prokaryotic cells might have been symbiotic before the evolution of eukaryotic

lorasvet [3.4K]

Some scientists hypothesize that the eukaryotic cells are really the result of symbiotic processes!

Specifically, the internal organs of the cells could be a remnant of a symbiotic relationship in which one cell lived inside of another cell. These two cells then both split upon reproduction and eventually the cell inside was reduced to an organelle.

But according to this theory, it is very likely that the prokaryotic cells engaged in a number of symbiotic relationship, and that this actually lead to the emergence of eukaryotic cells!
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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.

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3 years ago

Es una fuerza que altera una comunidad

alexgriva [62]

Answer:

the language.. please express in English

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2 years ago

Examine the diagram of a cell.

olasank [31]

This should be the cell membrane.

8 0

2 years ago

Read 2 more answers

In a dihybrid cross for pea plants, yellow peas are dominant to green peas and tall is dominant to short. if a pea plant with th

frozen [14]

Assuming there is no typo with the genotypes, both parents are recessive in both traits. Therefore the phenotype of the offspring can only show recessive traits,namely green and short. In otherwords, the probability of having green and short phenotypes is 100%.

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2 years ago