That would be the Endoplasmic Reticulum my good friend hope this helped... :D
It’s cell wall and chloroplast. We don’t need chloroplast because we don’t make our own food.
Crossing over. Parts of sister chromatids will sometimes switch places with the parallel part, resulting in a completely unique DNA sequence.
Explanation:
Terrestial Animals - Animals which can only live on Land.Examples:- BEAR- CAT- DOG- DEER
Aquatic Animals - Animals which can only live on Water.
Examples:- FISH- OCTOPUSES- LOBSTERS- SEAHORSE
Amphibians - Animals which can live both on land and on water.
Examples:- FROGS- TOADS- SALAMANDERS
Arboreal Animals - Animals which live primarily on trees.Examples:- SQUIRREL- RODENTS- CHAMELEON
Answer:
Iodine
Explanation:
Iodine is needed by animals because the body's metabolic rate is controlled by the action of an iodine hormone, called thyroxine, which is secreted by the thyroid gland in the neck.
If the animal fails to supply enough iodine through food to be able to make a normal amount of this compound, then the thyroid gland enlarges or expands trying to create enough, resulting in a common type of goiter.