Answer:
Biology is the study of life, bio meaning life and logy meaning study.
Explanation:
It is an important subject to study because it teaches you about life and how it works.
Answer:
Through transpiration and use of carbon dioxide (green house gas)
Explanation:
Plants help in making the climate stable in following two ways –
a) Temperature offsetting – Plants take in carbon dioxide from atmosphere and thereby reduces atmospheric carbon. Due to reduction in greenhouse gases, the temperature reduces.
b) Moisture regulation – Plants transpire through their leaves. Through transpiration, they release water as vapor and cool down the air. The higher the vegetation , the more is the transpiration.
Answer:
Correct option is C.
Explanation:
Gram staining is a technique of separation of the bacteria based on the cell wall composition. Steps involved in gram staining are:
1) Primary stain application which is known as crystal voilet, it stains all cells purple/blue.
2) Mordant stain application which is known as iodine solution, is added, and form crystal iodine complex, all cells continue to stain blue/purple.
3) Decoloration step, in this step, we can differentiate gram negative or gram positive bacteria. So, decolorizing agent such as ethanol or acetone extracts blue color from thin walled peptidoglycan layer gram negative bacteria, and gram positive bacteria remain blue/purple because it contains thick walled peptidoglycan layer.
4) Counterstain application in this step safranin red dye stain the gram negative decolorized cells red/pink, and gram positive bacteria remain same blue.
So, if a student is performing a Gram stain of a mixed culture of both E. coli and S. aureus, and he forgets to decolorize with ethanol Both the bacteria should appear blue/purple color.
Answer:
Option (B) and (C).
Explanation:
Anxiety disorders may be characterized as the mental health disorder that are characterized by the feelings of worry and panic. The symptoms of anxiety disorder are restlessness and stress.
Various biological factors are involved in the development of the anxiety disorder. The decreased levels of the GABA neurotransmitter is mainly responsible for this disorder. The enlarged fluid filled spaces called hydrocephalus are indirectly involved in the anxiety disorder.
Thus, the correct answer is option (B) and (C).
Answer and explanation;
Health-care in the ancient world was very experimental and under researched. The ancient methods for health care was affordable only if the best health care was accessible when needed.
The healthcare in the ancient world had a lot to do with herbs and plants because this is what they knew. However they also learned from these and learned about the body and how it works and tried different things.
