About 8.7 Million Species
Fossil records indicate that eukaryotes evolved from prokaryotes somewhere between 1.5 to 2 billion years ago
Answer:
Prokaryotic cells don't have a membrane bound organelle
Explanation:
Prokaryotic cells has no nucleus as well as no membrane bound organelle. To remeber this, Pro rhymes with NO. Meaning NO nucleus NO membrane but it do have ribosomes,cytoplasm, and etc.
This is the answer if thats what you are reffering too.
Answer: The correct answer for the question is- Resistance phase.
"General Adaptation Syndrome" is a model of stress, which was proposed by Hans Selye in 1936.
This model explains stress response ( through three phases that is Alarm phase, resistance phase, and exhaustion phase) and how it is related to aging and disease of organisms on exposure to stressful situations.
According to Resistance phase ( that is a second phase of stress response) of this model, the level of stress is declined once a body gives response to the stress. After the first phase ( alarming phase), overall temperature, blood pressure, and respiration becomes high.
As the stressor situation persist, the body is required to fight against the situation continuously, which is accompanied by outpouring of hormones.
Answer: 2
Explanation:- Mechanical advantage is the ratio of the output force to the input force.
Mechanical advantage=
Given:
Input force = 320 N
output force= 640 N
