Answer:
A hypothesis is a suggested solution for an unexplained occurrence that does not fit into current accepted scientific theory. The basic idea of a hypothesis is that there is no pre-determined outcome. For a hypothesis to be termed a scientific hypothesis, it has to be something that can be supported or refuted through carefully crafted experimentation or observation.
Explanation:
Answer:
A
Explanation:
It's passive transport because it does not require energy, i.e. you don't need to invest ATP to make it happen. Osmosis is the movement of water from area of higher solute concentration to area of lower solute concentration. It happens via channel proteins called aquaporines. Simple diffusion is when gases like O2 or CO2 difuse through the cell membrane. Again, they go from area of higher concentration to area of lower concentration. Facilitated difusion is how large and polar molecules go in and out of the cell. This happens via transmembrane proteins down the concentration gradient (from higher to lower concentration).
I believe it is B.) a system of interacting subsystems or A.) An indivisible unit that is part of the solar system.
Answer: yes, you are correct, but sometimes it is unable to create lives....then there is the option, of adoption.
Explanation: Men may not make enough sperm, or that sperm many not be strong ... can just happen (the same as some people might develop conditions ... to allow families who can't easily have babies to get pregnant and have families of their own. Most cases of female infertility are caused by problems with ovulation. Without ovulation, there are no eggs to be fertilized. Some signs that a woman is not ovulating normally include irregular or absent menstrual periods. Ovulation problems are often caused by polycystic ovarian syndrome (PCOS). another case is the body is just too old, and is shutting down. adoption is sometimes expensive, and has a lot of paperwork, but giving a child a family; is the best gift of all. some parents just aren't fit to take care of their child(children), so they go into foster care, and have the choice of either living on their own; or being adopted.....but in some cases, they don't have the choice, because they are too young to decide that.