group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. Subsections of a genus (of plants, animals).

To talk or do things with each other.

To make something happen; create effect or result.

certainly.

individual animal, plant, or single-celled life form. System with many parts that function as a whole.

substance that provides nourishment essential for maintenance of life and for growth.

feeling gratitude or sympathy. To be next to each other with no space between.

worm of large phylum Nematoda. Unsegmented worms with elongated rounded body pointed at both ends; mostly free-living but some are parasitic.

having specified appearance. To appear to be when you look at them; seem.

body tissue that produces movement. Body tissues that move parts of the body. move object using physical strength.

To drink just a little at a time.

change resulting from cause. Changes brought about by a cause; results. cause something to happen.

small, narrow river. Classes split into ability levels. run or flow in continuous current in specified direction.

relating to body. Health check at the doctors' or hospital.

Used to add new (often different) information.