Two birds exist in the tropics. Bird A lays its eggs in the nest of the bird B. The eggs of bird A look like those of bird B. Bird B raises the young of bird A, which eat flies that bother only bird B. What type of relationship is this?

All cells have the same genetic information, but do not express the same genes. how is this possible? question 10 options: the differences are due to gene expression, which can be turned on and off. genetic material in a muscle cell is completely different from genetic material in a skin cell. genetic material is the same in all cells in the human body, except for reproductive cells. differences are due to major changes in genetic information from cell to cell.

What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities