How many teeth has fish?

Explain how energy flows in a food chain. DONE

Why is a "ring if life " more appropriate to describe the relationship between archaea, bacteria, and eukaryotes than a "tree of life "?

1. Nervous systems are required by animals to respond to stimuli and have complex senses such as taste, touch, sight, smell, or sound. These are carried by nerves to and from the brain and spinal cord.

Identify the true statements regarding disulfide bridges (disulfide bonds). Disulfide bridges have a stabilizing effect on proteins. Disulfide bridges are formed by an irreversible oxidation reaction.

What do biologists studie?

How many times do the nostrils of a frog open and close in one minute

What regulates the enzymes present in an organism A. Phenotype B. Genotype C. Proteins D. Carbohydrates

What is the importance of the excretory system?

What are four sources of minerals?

How many organisms depend on the squid as a source of food?