Which statement best illustrates a biotic or an abiotic factor that is often found in a city park?
a.) decaying leaves are an abiotic factor because they are not living. b.) rocks are an abiotic factor because they have never been alive. c.) water in ponds is a biotic factor, because it provides a habitat for living things. d.) oxygen is a biotic factor, because it is required for life and found in all living things.

Predict the results of a two base insertion or deletion in a strand of dna that codes for a protien, how does this differ from a three base insertion or deletion?

The table lists the observations students made about four specimens under a microscope. based on these observations, what specimens did the students examine? animal plant virus prokaryote cell membrane present ribosomes present lysosomes present nuclear membrane present cell wall present ribosomes present nuclear membrane absent cell wall present ribosomes present nucleus present large vacuole present reproduces inside of a cell nucleus absent rna present 2019 edmentum all rights reserved intl

What organs comprise the respiratory system of a bird