What is a nebula?

•the core of a massive star

•a cloud of gas and dust in space

•a swirling disk with a lot of gravity

•the debris remaining after a supernova

How fossils of species that lived on Earth for short periods of time and were abundant and were widespread geographically?

Which of the following items would be included as part of earth science? A) studying how atoms interact B) studying the human body C) studying the forces that act on objects D) studying the weather

Which of Mendelssohn laws states that only one parental allele for each trait is included in a sex cell

Levels of oxygen and carbon dioxide in the blood are tested by

Which diagram correctly displays the order of events during egg formation?

How are traits inherited by offspring?

In homeotic mutants: Group of answer choices one body structure is missing. one body structure has been changed into another. one body structure has been duplicated. one body structure has significantly increased in size. the organism is infertile.

What effect of acid rain on a ecosystem is

What is a valid reason for making efforts to maintain the biodiversity of the planet earth? A Biodiversity makes ecosystems stronger, more stable, and more resiliant to environmental change.

Justin says that venus and jupiter are similar planets in our solar system. amanda argues that the two planets are actually very different from each other. who is correct? why is that person correct?