A macrophage is a white blood cell that engulfs and digests pathogenic or foreign particles in the body. An example of this type of cell is shown below. This type of bulk transport that requires ATP is called-
A. Active Transport by Endocytosis
B. Passive Transport by Exocytosis
C. Active Transport by Exocytosis
D. Passive Transport by Osmosis

Which prevent errors in dna replication? a. helicase enzyme checks the dna for errors. b. each base can attach to only one other type of base. c. ribosome enzymes prevent errors from happening. d. dna contains no complementary base pairs.

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

In 2015, about ten percent of total u.s. energy consumption was from renewable energy sources. renewable energy plays an important role in reducing greenhouse gas emissions. when renewable energy sources are used, the demand for fossil fuels is reduced. sanjay and his family want to cut back on their use of non-renewable resources at home. they are thinking of an alternate way to heat their home without adding more greenhouse gases or pollutants to the environment. which renewable resource would not fit into their plan? a) solar power b) burning wood c) constructing a wind turbine eliminate d) generating hydroelectric power