Answer: i would say the independent variable is the soil and the control variable is the seed because it stays the same in all of them to better understand the experiment while the dependent variable is the fertilizer.
Explanation: i am not completely sure but maybe someone else can also answer to verify it first
Answer:
true
Explanation:
theres a bunch of different categories depending on the subject
Answer: Hydrogen
Explanation:
Because it is the element that everything is created with it is everywhere. All life has hydrogen in it, our air, SPACE, everything.
Answer:
they do not evolve, they are birds
Explanation:
Answer:
nourish the placenta
Explanation:
The hormone called human placental lactogen (hPL) is a hormone secreted by the placenta, which functions to supply nutrients and oxygen to the growing fetus in the womb.
The human placental lactogen is produced to help in the efficient use of ingested food substances in the production of energy (metabolism). This indirectly helps to nourish the placenta because if the mother efficiently converts food into nutrients, the placenta is also adequately nourished.
