Which Is About Foraminiferans Is True

question 46

Multiple Choice

Which is about foraminiferans is true?

• A) Different species are important markers of geological time periods.
• B) Shells are composed of silica.
• C) They are a valuable source of petroleum and fossil fuels.
• D) They contain photosynthetic endosymbionts.
• E) They are responsible for the majority of sandstone found on the ocean floor.

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Definitions:

Zygote

Diploid cell formed by the union of two gametes; the product of fertilization.

Gametophyte

The sexual phase in the life cycle of plants and algae that produces gametes, typically through mitosis.

Spores

Asexual reproductive or resting cells capable of developing into a new organism without fusion with another cell, often seen in bacteria, fungi, and plants.

Haploid Spores

Single-celled reproductive units produced by plants, fungi, and some protozoa that contain only one set of chromosomes, leading to genetic diversity.