The endocrine system<span> is the collection of </span>glands<span> of an organism that </span>secrete hormones<span>directly into the </span>circulatory system<span>to be carried towards distant target organs. In </span>humans<span>, the major </span>endocrine glands<span> include the </span>pineal gland<span>, </span>pituitary gland<span>, </span>pancreas<span>, </span>ovaries<span>, </span>testes<span>, </span>thyroid gland<span>, </span>parathyroid gland<span>, and </span>adrenal glands<span>. In </span>vertebrates<span>, the </span>hypothalamus<span> is the neural control center for all endocrine systems. The field of study dealing with the endocrine system and its disorders is </span>endocrinology<span>, a branch of </span>internal medicine.<span>
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Answer:
Cohesion
Explanation:
Cohesion tension theory of water movement up the tree vessels
Cohesion is the term used to describe the binding forces present in water molecules through hydrogen bonds as such the water molecules have considerable tensile strenghth allowing them to be pulled up into the leaves of plants through the tree vessels without breakage as longitutudinal stress are placed on the water as it is pulled up
The answer is <span>C.lithium (3), boron (5), and fluorine (9)</span>
Answer:The Acid is dihydrogen phosphate (H2PO4-), H2O is the base, H3O+ is the conjugate acid, HPO42- is the conjugate base.
Explanation:
when dihydrogen phosphate (H2PO4-) ion reacts with water (H2O), it produces hydrogen phosphate ion (HPO42-) and hydroxonium ion (H3O+) following the reaction;
H2PO4- + H2O HPO42- + H3O+
According to Bronstead-lowry, an acid is a proton donor while a base is a proton receptor. The conjugate acid is the product after the base as accepted the proton while a conjugate base is the product after the acid has donated the proton.
The Acid is dihydrogen phosphate (H2PO4-) because it donates a proton to water which makes H2O the base.
H3O+ is the conjugate acid which is the product after the base accepted the proton while HPO42- is the conjugate base.
Atomic number is same number as the protons...
Neutrons = Mass number - Atomic number ( protons)
Electrons are same number as protons unless the element has a charge..
If it has a charge of +2 it means that the element has 2 less electrons than the neutral atom. If it has a charge of -2 it means that the element has 2 more electrons than what it is supposed to..