Which of the following is an example of a learned behavior?

A) birds competing for food in the feeder

B) birds singing to establish their territory

C) birds returning to a backyard bird feeder

D) birds scattering at the sight of a hawk

Which sentence best explains how enzymes spped up a chemical reaction a) enzymes remove heat from a chemical reaction b) enzymes lower the activation energy of a chemical c) enzymes add heat to a chemical reaction d) enzymes are niot changed as a

What is a benefit of eating meat and beans

N pea plants, yellow (Y) seed color is a dominant trait, and green seed color (y) is a recessive trait. Which resulting plant with yellow seeds could produce a plant with green seeds in the next generation? YY Yy yy Yg

Explain how a cell can be described as a whole system and also as part of a larger system.

Wolves that travel and hunt in packs exhibit in which dispersion pattern

Mendel's observations of pea plants contributed to the study of modern genetics. use these terms gene, genotype, dominant, recessive, phenotype, allele, trait, in your explanation?

What is the process of the ocean floor adds new material to its ocean floor called?

If you were in a boat as Hurricane Sandy passed overhead on October 28 at 4am, at what altitude would Polaris appear in the sky from your location (32°N and 73°W) ?

Which instrument would provide the most detailed information about the internal structure of a chloroplast

Staind yeast were added to a paramecium culture, and some of the yeast were ingested by the paramecia. this activity is most closely associated with which life function A) synthesis B) regulation C) nutrition D) growth