Kepler's First Law of Planetary Motion States "The Orbits of the Planets

question 22

Multiple Choice

Kepler's first law of planetary motion states "The orbits of the planets are _____ with the Sun at one focus."

• A) spheres
• B) ellipses
• C) circular
• D) rigid
• E) random

---

Definitions:

Evolutionary Significance

The impact or importance of evolutionary changes and adaptations in the history and development of species, populations, or genes.

Red Algae

A group of predominantly marine algae, known for their distinctive red coloration, contributing significantly to oceanic ecosystems.

Green Algae

Diverse group of photosynthetic organisms found primarily in aquatic environments, important for oxygen production and as a base in the food web.

Land Plants

Plants that have adapted to live in terrestrial habitats, exhibiting features such as roots, stems, and leaves for survival on land.