Which protist is multicellular, found in warm ocean waters and has a red color due to the red photosynthetic pigments in its cells?

Consider the model of the food chain. Imagine there is a herbicide poison spill and all the grass is killed. How will this influence the food chain model? A) The grasshoppers will die out. B) All of the consumers will decrease.

What would happen if external pressure is applied to the solution whith higher solute concentration

Which of the following describes qualitative data? Taking the mass of an object using a balance. Measuring the volume of an object by water displacement. Recording the temperature of a solid as it is warmed.

Which statement best describes how organisms use nitrogen? a) Certain bacteria living in the roots of plants convert nitrogen to a form plants can use, and animals obtain their nitrogen by eating those plants.

How do restriction endonucleases work? They add nucleotides to DNA. They cut DNA at specific sequences. They cause gene mutations.

A gardener is trying to win a competition for the largest pumpkin. Every year, she saves the seeds from the largest pumpkin in her garden. The next year, she plants only those seeds in a large plot.

Sugar is produced primarily in the leaves of a plant. Which of the following transports that sugar to other areas of the plant

5. Carbon dioxide moves from oxygen poor blood of the alveolar capillaries into the alveolar spaces by the process of what?

Which of the following IS NOT a reason why organisms in an estuary have special adaptations? a. exposed to intense sunlight during the day b. salinity of the water in an estuary is constantly changing c.

Fewer offspring is a disadvantage of which form of reproduction? A) mitosis B) asexual reproduction C) binary fission D) sexual reproduction