3 years ago

Explain natural selection and adaptations of bacteria

1 answer:

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Natural selection can cause speciation, which increases the biodiversity of an ecosystem. Several bacterial colonies are placed on a petri dish that contains agar with antibiotics. After 24 hours, ninety percent of the original bacteria die, but the remaining ten percent survive and later reproduce.

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A researcher investigates a recently discovered species of plant. The plant has vascular tissues and exhibits a sporophyte and a

CaHeK987 [17]

<h3>Answer;</h3>

D. pteridophyte

<h3>Explanation;</h3>

Pteridophyte are vascular plants in the phylum plants that reproduce by releasing spores rather than seeds.

Other characteristics of pteridophyte includes;

They show alternation of generations, that is the sporophyte generation and gametophyte generation are observed.
Sporophytes has true roots, stem and leaves
Sporangia are produced in groups on sporophylls

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4 years ago

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Speed is a _____ unit of measurement. A.) single B.) constant C.) compound

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Answer:

A) Single

Explanation:

Speed is a single unit of measurement :)

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3 years ago

Flakes or dry patches made up of excess dead epidermal cells are a known as __________.