Question

Which of these are cellular activities that sustain a single-celled organism through its lifetime? Select all that apply. The transmission of DNA to offspring, Processes by which individuals produce offspring, Development into a multi-celled adult, Increases in cell size and volume

Answer 1

Explanation:

The transmission of DNA to offspring.

Processes by which individuals produce offspring.

Increases in cell size and volume

Answer 2

A single-celled or 'unicellular' microorganism is a microscopic organism composed of only one cell. Unicellular microorganisms asexually reproduce to produce offspring.

• The cellular activities that sustain a single-celled organism through its lifetime include:

1. The transmission of DNA to offspring
2. Processes by which individuals produce offspring
3. Increases in cell size and volume

• Unicellular microorganisms include, among others, prokaryotic bacteria, unicellular fungi (e.g., yeast), and unicellular protists (e.g., Amoeba).

• Reproduction refers to the process by which organisms transmit their genetic material (DNA) to offspring.

• In unicellular organisms, the process of reproduction is asexual (without the involvement of gamete formation).

• During their lifetime, unicellular organisms increase in size and volume to carry out their metabolic functions.

• In conclusion, unicellular organisms share different cellular activities which include the transmission of DNA to offspring, processes by which individuals produce offspring and increase in cell size and volume.

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