What characteristics of living things best explains why some North American birds fly south for the winter?

Algae at the beginning of a food chain would be considered?

1. Where are your genes found? your alleles your cytoplasm your ribosomes your chromosomes 2. What is the shape of DNA called? nucleotide double helix chromosome ribonucleic acid 3.

Why do the bones become stronger shortly before birth

When a person is exercising, their heart rate will increase to send more blood (containing oxygen) to the muscles working in the body. After a person stops exercising, their heart rate will decrease to the normal rate.

The nurse is caring for a client whose forehead feels warm to the touch. the nurse uses a thermometer and obtains the client's temperature. what is the nurse doing?

The cell walls of fungi differ from those of plants and protists because the cell walls of fungi O A. are composed of cellulose. O B. are composed of peptidoglycan. C. are composed of chitin. D. contain chlorophyll.

In module 1 you identify which species of lizards were most similar to one another based on

Are surface currents that flow towards the poles generally warm or cold?

Which is the correct order of the processes responsible for the formation of sedimentary rocks? erosion, deposition, compaction weathering, cementation, deposition cementation, compaction, erosion?

Urine exits through what external opening on both male and female rats