If male dogs use semiochemicals in urine to mark their territory, then male dogs use_ in urine to mark their territory.? Answer choices: - ammonia - Chemical energy - proteins - semiochemicals - animals - heat produced - nitric oxide - They have thick fur
semiochemicals

(Question)
If great egrets get food by eating other livings things, then great egrets get food by doing what? Answer choices: - sleeping - eating other living things - Transfers energy - converting mass to energy - Something coming from a gland - photosynthesis - dying - competing for resources
(Answer)
eating other living things

Ques: If echolocation is used to find objects underwater, then what is used to find objects underwater? Answer choices: - echolocation - a hydraulic system - heat energy - Electrical energy - dolphins - mussels - by indirect light - rays or beams
Ans: echolocation

(Q).
If causing something to move can need an engine, then causing something to move can need what? Answer choices: - heat energy - a disc - a meal - energy - an engine - voltage - a stick - arteries
(A).
an engine

Ques:If some animals sing to reproduce, then what do some animals do in order to reproduce? Answer choices: - Social - immune - ligt - grow - live - DNA - sex - sing

Ans:sing

Ques:If people can be moved to islands in an airplane, then people can be moved where in an airplane? Answer choices: - outer space - oceans - the moon - islands - Pacific - germany - the sun - Mountains

Ans:
islands