Answer: The correct answer is b. Syphilis.
Syphilis is a type of sexually transmitted disease and the causative agent is bacteria called Treponema pallidum. There are four stages of syphilis: primary, secondary, latent and tertiary. It is a highly contagious disease.
The disease starts to get spread from sores and the pregnant women can pass the disease to the child and can cause abnormalities or even death of the child. If syphilis is untreated till the tertiary phase, it can lead to problems in heart, blindness, deafness, brain, nerves leading to paralysis and even death.
Answer:
Dual distribution
Explanation:
Dual distribution is a method of distribution or arrangement, whereby a company uses majorly two approaches simultaneously in distributing their products to their end-users. The company or manufacturer of the product sells their products directly to the end-users and also sells their product to companies that act as marketing intermediaries that later resell their products to the end-users.
According to the information given in the question above, we can infer that the method of distribution used by pharmaceutical companies is an example of <em>dual distribution.</em>
Helicase enzyme work to unzip the two strands
Synapse
A synapse is a junction where there is a small gap between the neurons.The synapse permits the flow of electrical or chemical signals from neuron to neuron, allowing these neurons to communicate and pass information among themselves.
The chemical synapse converts the electrical signal to a chemical response by releasing chemicals called neurotransmitters, which are received by receptor sites in the other neurons. The electrical synapse allows the flow of ions from one neuron to another to pass the electric current or signal.
Answer:
The saprotrophs and detritivores are placed to one side of the pyramid because they are decomposers which feed on dead bodies of all the living organisms which are present in the trophic levels i. e. producers, primary consumers, secondary consumers and tertiary consumers etc. When they feed on dead bodies, they released nutrients which are used by the plants.