In one of her expeditions, a marine biologist finds a new and seemingly adult organism that has a distinct head but an unsegmented body. Under which phylum should she classify this organism?

arthropod

mollusk

echinoderm

What are the three types of energy transfer that happen in the atmosphere of the earth? Mark all that apply. Conduction Convection Albedo Radiation Black absorbs light of many wavelengths and white reflects light of many wavelengths.

Glycogen is found in animal cells or plant cells or both?

Which pair of nitrogenous bases will form a bond in a DNA molecule?

Which type of cancer shows the most aggressive growth?

The A and B antigens in humans may be found in water-soluble form in secretions, including saliva, of some individuals (Se/Se and Se/se) but not in others (se/se). The population thus contains "secretors" and "nonsecretors." ...

Which statements apply to density? Check all that apply. >Density is a chemical property of an object. >The density of an object is constant. >Density is a derived unit of measure. >Density is the sum of the mass and volume of an object.

For some invertebrates that live in water, the sense of taste and the sense of smell are identical. Why do you think separate organs for taste and smell might have evolved in animals that live on land but not in some animals that live exclusively in

Plants can only cause mechanical weathering. true or false.

Both Allison and Beth need 2,200 kcal daily to maintain their weight. Allison consumes a high-fat, high-protein, low-carbohydrate diet consisting of 2,200 kcal. Beth consumes a low-fat, moderate-protein, high-carbohydrate diet containing 2,300 kcal.

Which observation proves that a cell is eukaryote