Hemoglobin is

A. a digestive enzyme.

B. a tiny nutrient carried in capillaries.

C. an oxygen-carrying pigment in blood.

D. part of the vertebrate nervous system.

Which observation about the Rocky Mountains and the Appalachian Mountains would support the claim that exposure of weathering and erosion overtime can change land forms?

A biologist has just discovered a new life form. The newly described organism is multicellular, does not carry on photosynthesis, and absorbs nutrients from the environment. It is composed of eukaryotic cells with cell walls.

In what organelle would you find acetyl coa formation

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What evolutionary mechanisms might account for the origin and persistence of cell-to-cell signaling in unicellular prokaryotes?

Which of the following is NOT a distinguishing feature of a synovial joint?

Which nucleic acid moves the code for protein synthesis form the nucleus to the ribosomes? dRNA tRNA rRNA mRNA

What describes how sliding friction affects pushing a cereal box across a tabletop?

An example of a land feature formed by river erosion is a. alluvial fans c. soil b. deltas d. oxbow lakes

If u look for rna n various parts of the cell, where would it be found