Fish and amphibians commonly conduct fertilization externally. External fertilization occurs when the female releases the eggs into the environment and then the male releases sperm on top of the eggs.The eggs are then fertilized. Internal fertilization occurs when fertilization happens inside the female's body. After fertilization, the female either bears live young or lays eggs which hatch. Both of these processes take place after a period of incubation either internally or externally. Eggs which are externally fertilized do not have a hard external protective covering or shell.
Answer:
the pressure will decrease slowly.
Explanation:
some Chem law
Answer:
Sodium will let that electron go as soon as it can, which is why it generally forms ionic compounds such as NaCl. When sodium atom loses an electron from its outer energy shell, it becomes Na+ ion. D is the answer
Explanation:
Molecules after molecules with lots of energy
Answer:
The rock type, newspaper ,
cotton or plaster of Paris to collect the fossil
Method of collection .
Documentation or labelling.
Magnifying glasses.
Explanation:
Fossil is fragile as it contain the remains of dead of plants and animals on it. Fossil can be collected from sedimentary rocks instead of metamorphic rocks because sedimentary rocks contain strata or layers of fossils.
The method of collecting fossils entails how the fossil is collected and it should be wrapped in news paper, aluminum foil or plaster of Paris so as to preserve the imprints of the remains of dead plants and animals.
The collected fossils should be labelled properly and well documented to avoid missed up or loss of some certain information using pen or paints.
Magnifying glass can be used to view it.