Circulatory- INCLUDES: Heart, blood vessels, blood lymph nodes and vessels, lymph FUNCTIONS: Transports nutrients, wastes, hormones, and gases
Digestive- INCLUDES: Mouth, throat, esophagus, stomach, liver, pancreas, and small and large intestines. FUNCTIONS: Extracts and absorbs nutrients from food; removes wastes; maintains water and chemical balances.
Endocrine- INCLUDES: Hypothalamus, pituitary, pancreas, and many other endocrine glands. FUNCTIONS: Regulates body temperature, metabolism, development, and reproduction; maintains homeostasis; regulates concentration of body fluids.
Excretory- INCLUDES: Kidneys, urinary bladder, ureters, urethra, skin, lungs FUNCTIONS: Removes wastes from blood; regulates conccentration of body fluids.
Immune- INCLUDES: White blood cells, lymph nodes and vessels, skin. FUNCTIONS: Defends against pathogens and disease.
Integumentary - INCLUDES: Skin, nails, hair FUNCTIONS: Protects against injury, infection, and fluid loss; helps regulate body temperature.
Muscular- INCLUDES: Skeletal, smooth, and cardiac muscle tissues. FUNCTIONS: Moves limbs and trunk; moves substances through body; provides structure and support.
Nervous- INCLUDES: Brain, spinal cord, nerves, sense organs. FUNCTIONS: Regulates behavior; maintains homeostasis; regulates other organ systems; controls sensory and motor fuctions.
Repertory- INCLUDES: Lungs, nose, mouth, trachea. FUNCTIONS: Moves air into and out of lungs; controls gas exchange between blood and lungs.
Skeletal- INCLUDES: Bones and joints. FUNCTIONS: Protects and supports the body and organs; interacts with skeletal muscles, producs red blood cells, white blood cells, and platelets
a. Only the DNA of β cells contains the gene for insulin; only the DNA of chief cells contains the gene for pepsinogen
Explanation:
As stated in the question above, insulin production is exclusive to β cells in the pancreas. This is because only these cells have a gene that manages the production and excretion of insulin within an organism. Similarly, only the main cells of the stomach have the capacity to produce pepsinogen, which indicates that the gene responsible for managing this production is unique to these cells.
<span>Chromated copper arsenate, or CCA, is a pesticide that has been used for years in
pressure-treating lumber to prevent destruction from rot and insects. Arsenic, a toxic
chemical, can leach from this treated wood, leaving residues on the wood’s surface and in
nearby soil. Young children who play on or near decks or playscapes made from CCA-
treated wood can get arsenic on their skin and into their bodies, especially if they eat or
drink without washing their hands.
Because of the health risks of long-term exposure to arsenic, the Environmental
Protection Agency (EPA) has announced that as of December 31, 2003, arsenic Currently the EPA does not recommend that people remove existing structures made with CCA-treated wood or the soil surrounding those structures. However, they do recommend that people reduce their potential exposure to arsenic.</span>
Hello. You did not enter the answer options, but the factor that most directly influences a measurable result in an experiment is the manipulation of the variables.
Explanation:
In an experiment, the manipulation of variables becomes highly important so that it is possible to measure, that is, evaluate the result. This is because it is the variables that express values that represent the characteristics that are being analyzed and studied within the experiment. Therefore, the manipulation between them must be done in a very rational and balanced way so as not to modify the values shown by them, changing the data and generating false or immeasurable data.
Humans are warm blooded and can't be cold blooded because of the environment we live in. We can't sit still during the winter and soak up warmth from the sun.
