Consider the following statement: size and shape are not

yes its like the dead sea which is full of salt which makes you stay afloat

so yes an egg will float in salt

answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.

explanation:

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.