Answer:
im my opinion... the answer is A
Answer:
Igneous rocks and Metamorphic rocks determine the age of the earth.
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.
Answer:
It's d crossing over is the answer
Answer:
Plant cells having chloroplasts suggests that they come from a specific species of prokaryotes: cyanobacteria.
Explanation:
The endosymbiosis theory explains that <u>eukaryotic cells</u> (both plant and animal cells) <u>come from a common ancestor: prokaryotes</u>. Chloroplasts and mitochondria have outer phospholipid bilayer membranes and circular DNA molecules like prokaryotes have.
It is believed that ancient bacteria were captured by other cells in the past and thus they became eukaryotic cells.
Cyanobacteria are prokaryotes with the capacity to do photosynthesis as plant cells do.
