Adaption, evolution, variation are all causes of natural selection.
hope this helps..
brainliest..?
Answer:
The term secretion refers to the cell that releases a substance into the extracellular space.
Explanation:
When a cell or organ or gland produce and secretes substance in to extracellular space,this biochemical process is called as secretion.
The secretory products may be hormone, enzymes etc.
This process facilitates the movement of material from one place to another place.
For example, Pituitary gland produce and release prolactin hormone that induces breast cells to produce lactation during sucking process done by baby.
Pituitary gland also secrete different hormones that acts on different glands like adrenal, testes, ovary, thyroid gland etc that in turn produce different hormones like adrenaline,testosterone,estrogen,progesterone, TSH,T3, hormone etc.
Answer:
1.a group of individuals of the same species that live in the same general location and have the potential to interbreed is the correct answer.
Explanation:
A population is defined as all organisms of the same species that live in a particular location and have the potential of interbreeding.
The characteristics of the population are
- population density
- population distribution
- Population size
- Age structure
The population is one of the most essential factors that play a major role to stabilize the environment.
Answer:
it is 80- 90 % chances of relapse, almost certain for the relapse to reoccur.
Explanation:
Generally bipolar disorders can be caused by genetic and environmental factors. One of the examples of environmental stress that causes bipolar disorder is mental stress and family abuse in which Shonda is entangled. Evidences has shown that some recent events of life,and interpersonal relationships are examples of predisposing environmental factors that triggers onset of bipolar disorders and relapse.
Therefore her enmeshed or entanglement in the family situation put mental stress on her; which cause her ventral system( parts of the brain which control emotions) to be over activated and the dorsal systems (parts which control memory to be underactivated which results in relapse.
The reason is that of the significance of the brain in human existence. In biology, the traits that provide an advantage in the environment are preserved and improved upon. Therefore, as humans continue to use their brains to influence their environment, as the society rewards those with higher intelligence (associated with bigger brains),the bigger brains will be favored by natural selection.
