The lack of evidence to the contrary suggests that the organisms reproduced sexually.

The answer is yes, because evolution selects proteins that help an organism survive and reproduce.

Such organisms would reproduce directly after being born, produce infinitely many offspring, and live indefinitely.

Traits that help an organism survive and reproduce would accumulate over generations.

Under certain conditions, particularly when nutrient concentrations are high, these organisms reproduce exponentially.

In each new generation the organisms reproduce at random.

When certain conditions are present, such as high nutrient or light levels, these organisms reproduce explosively.

Semelparous organisms reproduce only once in their lives and then die.

It is not known how the organism feeds or reproduces.

Sexual maturity is the age or stage when an organism can reproduce.