Answer:
le dire a tu maestra
Explanation:que copeas mucho
Answer:
C
Explanation:
Increasing enzyme concentration will speed up the rate of a reaction, as long as there is substrate available to bind to.
Answer:
The "fight or flight" response
Explanation:
Models are simplified representations of of different complex systems. They also help to study very small or large objects.
Option B, D and E.
Explanation:
Models are very simplified representations of complex systems and organs or structures which are prepared to study those systems by scientists and normal people easily. Many structures of human body like cells or some tissues are very small in structure or microscopic in nature. So studying them are very hard without specific instruments which are not always available. Thus models are made to easily study those structures by scientists and even normal people and students.
Your answer is A) - a greenhouse effect
that happens also at large scale, when the atmosphere is playing the role of the windows and the climate on earth became warmer.