6. Channel proteins span the membrane and make hydrophilic tunnels across it, allowing their target molecules to pass through by diffusion.
7. They move freely around the membrane.
8. Binary fission is the division of a single entity into two or more parts and the regeneration of those parts separate the entities resembling the original.
Answer: A.it is a relatively new human adaptation.
Explanation:
Fight or flight response is a response shown by a human or animal body towards acute stress. It is a physiological reaction that occurs in response to the perceived attack, survival threat and attack. The animals or humans react to threats by the hormonal secretion from sympathetic nervous system. This prepared animals for fighting. The hormonal secretions like catecholamines, epinephrine and nonepinephrine helps in generation of response. Neurotransmitters dopamine, estrogen, testosteron e and cortisol affects how organisms react to the stress.
Fight-or-flight reaction is not a relatively new human adaptation but it is evolved as a survival mechanism which was also present in primitive human beings and mammals and helped them to react in the life-threatening situations.
Answer:
Many animals and plants regenerate tissues or even whole organs after injury. Typically, specialized cells at the wound site revert to a 'pluripotent' state–via a process called dedifferentiation—which means they regain the ability to develop into the various cell types required for regeneration.
Explanation:
Hope this helps
I believe all living things in the domain are sorted into Kingdoms.
Answer:
climate change
Explanation:
Climate change leads to: A warming ocean: causes thermal stress that contributes to coral bleaching and infectious disease. ideally humans also cause these things if that is an option
