Biomes / Biochemistry

What is unique about carbon?

What gives water many properties that are important to living things?

Trees that drop their leaves in the cold season are

Where is the tropical zone

If more sediment gets into the water and blocks out sunlight, it will lead to

How are atoms held together in molecules?

Which of the following is a characteristic of tropical rain forests?

If plants slowly change from lush foliage to deep roots and conserve water,they are changing to

What is the term for the substances that are changed during a chemical reaction?

The smallest unit of matter is the

Atoms in molecules share pairs of electrons when they make

The primary function of DNA is to

Tiny free floating animals that live in water are called

Which property of water is the result of hydrogen bonds?

How do ions form?

The freshwater littoral zone is similar to which ocean zone?

Alteration of rain forests to farmland threatens to most likely -

The uppermost layer of branches in rainforest trees is called the

Which of the following has the highest H+ concentration?

Four types of carbon-based molecule are carbohydrates, lipids, nucleic acids and

The layer of air surrounding Earth is known as the

What would describe a polymer?

Estuary ecosystems are important to humans as a source of

What forms when an atom gains or loses electrons?

Proteins are long molecules that are built from various combination of -

Plants and animals that live in savannas are well-adapted to

COmmunities on mountains differ depending on the