Closely related species often look similar but have courtship rituals that are slightly different to ensure that mating occurs between member of the same species. The correct option among all the options that are given in the question is the third option or option "c". This is to preserve the specialties that each species have.
Answer:
Some similarities between a sea slug and a spotted salamander:
1. They both reproduce in a water source. For sea slug oceans, while for Spotted salamander, mostly ponds.
2. They both lay eggs meaning they are oviparous.
Explanation:
The sea slug is an aquatic animal without a bony skeleton. Spotted salamander have a bony skeleton with a similar resemblance to that of a lizard in shape but are diffferent in color, they are amphibians
Answer:
C is Wrong there was 1 billon people in 1804 A is Also Wrong B i also wrong so its D
Explanation: Can i have Brainliest
Answer:
b. di uses across a synaptic cleft from a neuron to a muscle cell.
Explanation:
A neurotransmitter is di uses across a synaptic cleft from a neuron to a muscle cell. Neurotransmitters are chemicals which enable neurotransmission. In reaction to an impulse a motor neuron axon secretes a neurotransmitter and causes the muscle fiber to contract. It is a chemical messenger which passes on the signals across the chemical synapse.