Which is a safe practice for handling chemicals in a lab investigation? dispose of all chemicals down the sink with a lot of water. tell the teacher about any chemicals that were spilled in a lab. identify chemicals by smelling and tasting them. place beakers of chemicals near the edge of the counter.

Abnormal softening of a gland is known as

Milk production during breastfeeding is increased by the suckling of a newborn from his mother's nipple. this type of feedback mechanism best describes a positive or negative

Ineed to get this test done which of the following statements is correct in hour our immune system responds to a potential pathogen? a.) the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. b.) b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c.) the adapted immune system will call on the innate immune system to destroy the pathogen. d.) the t-cells in the adapted immune systems are the first to recognize the pathogen