Which example shows a physical change taking place?

Heat is given off.

The substance melts.

A new substance is produced.

A precipitate is formed.

How does the zygosporangium of Rhizopus stolonifer function to ensure the survival of the species? A: It breaks down complex material for the fungus to absorb. B: It anchors the fungus to the food source.

What element has 8 electrons in an electrically neutral atom

In this eight-year experiment, 12 populations of E. coli, each begun from a single cell, were grown in low-glucose conditions for 20,000 generations. Each culture was introduced to fresh growth medium every 24 hours.

Why do scientists conduct experiments? A. To test their results. B. To explain an observation. C. To test a hypothesis. D. To test a conclusion.

What is the purpose of using multiple control groups in an experiment

What is the term for a preserved footprint left behind any animal

how can two species that look very different from each other be more closely related than two other species that look similar to each other

What is a example of asexual representation.

How did bipedalism in humans support the evolution of our skulls?

Which organelle (s) would be active in liver cells that are detoxifying alcohol?