Answer:
The correct answer will be option E.
Explanation:
The features given in the question are the characteristics features of the group of bacteria belonging to Cyanobacteria.
These Cyanobacteria are the prokaryotes which are capable of synthesizing the food through a process called photosynthesis. These bacteria use sunlight as their energy, use water and air to synthesize food. They under anaerobic condition synthesize the nitrogen in special structures called heterocyst, a characteristic feature of cyanobacteria.
Thus, the features given in the question are:
1. contain photosystems to carry out photosynthesis.
2. producing oxygen
4. contain phycobilins
6. Hetrocysts: nitrogen-fixing structures.
7. The ancestor of plant chloroplasts.
Thus, option E is the correct answer.
Clear glass, specially if the glass has water in it
Sleeping, walking, blood pressure and body tempature
<h2>B) is the correct option </h2>
Explanation:
The parasympathetic activity is responsible for the body's rest and digestion response when the body is relaxed, resting, or feeding, it basically undoes the work of sympathetic division after a stressful situation
The parasympathetic activity decreases respiration and heart rate and increases digestion
Increased sympathetic activity plays an important role in patho-physiological role in hypertension, particularly in the early stages which is evident by increased heart rate and blood pressure variability