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Pepsi [2]
3 years ago
13

During which period did the first fish evolve?

Biology
1 answer:
AveGali [126]3 years ago
7 0
They evolved during the Cambrian explosion.

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I’d go with B. (if it’s not then C)

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In detail what are the main differences in the 3 domains
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Organisms can be classified into one of three domains based on differences in the sequences of nucleotides in the cell's ribosomal RNAs (rRNA), the cell's membrane lipid structure, and its sensitivity to antibiotics. The three domains are the Archaea, the Bacteria, and the Eukarya.

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A group of puppies have different fur colors. This is an example of
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genetic diversity

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The megasporangium in a pine cone is surrounded by an integument with a small opening called the?
zhannawk [14.2K]

The megasporangium in a pine cone is surrounded by an integument with a small opening called the micropyle.

Integuments in flowers are the maternal tissues or having a maternal beginning, as they originate from the ovular tissue or chalazal tissue (part of the lady reproductive gadget of a flower). A time period integument merely refers to the protecting layer. In terms of botany, an integument is a layer encircling the ovule.

A mature ovule consists of a meal tissue included by means of one or destiny seed coats, called integuments. A small establishing (the micropyle) within the integuments permits the pollen tube to enter and discharge its sperm nuclei into the embryo sac, a large oval cellular in which fertilization and improvement arise.

Learn more about integument here: brainly.com/question/2801375

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What macromolecule's main function is to store energy for immediate use
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Carbohydrates; long term use is lipids.

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