[Grammar] Are these sentences correct or wrong?

[Sahar.sh]

1. Neuroscientists have long held that glial cells in brain, in which astrocytes are one type, support neurons by protecting them from invaders.
2. Along with several colleagues, I have recently conducted research that offers insight into why many people end up unhappy when please rather than their options expand.
3. Not until the 17th century European naturalists did widly recognize that plants produce sexually.
Is this sentences right or wrong?
can you please correct them for me and send it to me?
thanks.

 

[emsr2d2]

Re: Is this sentences i am making correct or wrong?

1. Neuroscientists have long held that glial cells in ​the brain, [STRIKE]in[/STRIKE] of which astrocytes are one type, support neurons by protecting them from invaders.

2. Along with several colleagues, I have recently conducted research that offers insight into why many people end up unhappy when please rather than their options expand.
I don't know what the underlined part means.

3. Not until the 17th century did European naturalists [STRIKE]did[/STRIKE] widely recognize that plants produce sexually.

[STRIKE]Is[/STRIKE] Are [STRIKE]this[/STRIKE] these sentences right or wrong?

Can you please correct them for me? [STRIKE]and send it to me?[/STRIKE]
Thanks.

See above in red.

 

[Rover_KE]

Re: Is this sentences i am making correct or wrong?

Additionally, 'produce' should be 'reproduce'.

(Not a botanist.)

 

[emsr2d2]

Oops, I missed that. Another example of reading what we expect to read.