All arthropods Have Exoskeletons . Hope I helped
Because some of them are immune and only works for one thing in the system
The acetabulum is a fossa formed by the ilium, ischium and pubis which with the femoral head forms the coxal joint.
The acetabulum is made up of the three bones that make up the coxal bone (hip bone).
The ischium, which offers the lower and side limits to the acetabulum, makes up somewhat more than two-fifths of the structure.
Less than two-fifths of the acetabulum's structure is provided by the ilium, which also serves as the top limit of the joint.
The pubis, which is close to the midline, forms the remainder.
The acetabulofemoral joint (art. coxae), also known as the coxal joint, is the joint between the head of the femur and the acetabulum of the pelvis.
Its main job is to support the weight of the body in both static (such as while standing) and dynamic (such as when walking or running) postures.
Learn more about Hip joint here brainly.com/question/12522711
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I believe the payments/bribes are called kickbacks.
Answer:
Water can hydrogen bond.
Explanation:
Liquids become gases once they are heated to a certain temperature. Heat is a form of energy. This change occurs when the intermolecular forces between the liquid molecules are energized enough to break. This breakage is necessary because gaseous molecules exist individually and do not interact with one another. That being said, it takes more heat to boil water because its intermolecular forces are stronger than methanes.
Intermolecular forces (IMF) are a result of partial charges on the molecular atoms that cause temporary bonds to form between molecules.
Methane is a nonpolar molecule, meaning each atom can only have slight partial charges. The strongest IMF methane participates in are London Dispersion Forces.
Water, however, is a polar molecule, with the hydrogens having strong partial positive charges and the oxygens having strong partial negative charges. This allows water to participate in a very strong IMF called hydrogen bonding. Again, because these partial charges are so strong, the water molecules can form stronger IMFs.
<u>*When molecules have stronger IMFs, they require more energy(heat) to overcome them.*</u>
