Euglena are protists that move by means of flagella, and they contain chloroplasts and an eye spot or light receptor. they are capable of ingesting food by phagocytosis. being simple organisms, they can reproduce asexually. under what environmental condition would we expect euglena to ingest food rather than produce food via photosynthesis? a) when light is limited b) when light is abundant c) when oxygen is limited d) when temperatures drop

Which statements about the fluid mosaic structure of a membrane are correct? select the three correct statements.which statements about the fluid mosaic structure of a membrane are correct? select the three correct statements.the framework of a membrane is a bilayer of phospholipids with their hydrophilic heads facing the aqueous environment inside and outside of the cell and their hydrophobic tails clustered in the center.because membranes are fluid, membrane proteins and phospholipids can drift about in the membrane.the diverse proteins found in and attached to membranes perform many important functions.the kinky tails of some proteins keep the membrane fluid by preventing the component molecules from packing solidly together.membranes include a mosaic, or mix, of carbohydrates embedded in a phospholipid bilayer.

Which of these substances does not protect against invaders in the nonspecific immune response? a. saliva b. mucus c. tears d. urine

What type of reaction is photosynthesis