A conservative pundit sparked a heated online debate after using an image of a six-week embryo to argue in favor of anti-abortion laws, pointing out that, even at such an early stage, the embryo is starting to develop limbs.

Liz Wheeler, 30, was reponding to a now-deleted tweet from Representative Alexandria Ocasio Cortez about Georgia's 'heartbeat bill', in which the New Yorker pointed out that many women don't even realize when they are six-weeks pregnant, since it would amount to a period being just two weeks late

However this argument did not sit well with Liz, who hosts One America News Network's Tipping Point, and who hit back with the image of the fetus, which she captioned: 'This is "two weeks late on your period". Two weeks late has arms & legs forming, fingers & toes, & a heartbeat.'

Twitter fights: This week, Liz Wheeler posted a picture of a six-week old embryo in response to Rep. Ocasio-Cortez's remark that such a time frame means a two-weeks missed period

Her statement did not sit well with a number of her fellow Twitter users however — and one outspoken college graduate in particular fired back with a lengthy argument of her own in response to the post.

Tweeter: Liz is the 30-year-old host of One America News Network's Tipping Point

Emily Milakovic, a recent graduate from George Washington University, and managing editor of the college's The Rival GW publication, shared a series of eloquent tweets about fetal development, pointing out other facts that Liz did not include in her original post.

Although she did not suggest that anything Liz said in her own tweet was untrue, she insisted that there are other circumstances that define how a six-week embryo should be viewed.

'It does not, however, have a brain,' she wrote.

'It has not developed a cerebral cortex & therefore is still ~8 weeks from even being able to breathe or swallow. It is at least 6 weeks away from the development of the frontal or temporal lobes of the brain.

Laying out her argument: George Washington University graduate Emily Milakovic responded with a scientific rebuttal

Underdeveloped: Emily insisted that at that stage, embryos have little brain activity — less than a shrimp

Tiny: She reiterated the point about the shrimp and said the embryo doesn't have what it needs to survive at that point

Emily wrote: 'Any electrical activity at this point is less developed than the activity in a shrimp's nervous system'

Itsy bitsy: She also noted that an embryo at six weeks is the size of a pea

Small: That embryo is .2 inches long, something not clear in Liz's image

Not what you think: She also had an argument against outrage over 'late-term' abortion

'At 6 weeks, the electrical activity in what would develop into a brain is less developed than the nervous system of a shrimp. Six weeks is 17 weeks from having brain processing power to react to adverse stimuli,' she went on.

In response to the argument that the embryo is starting to form legs, Emily argued that this isn't relevant.

'You don’t need legs to be living or a human. You do, however, need a brain and the ability to breathe. Two weeks after a missed period, what the body has created is an embryo (not even a fetus yet) that is less developed than shrimp,' she wrote.

'Speaking of fish, it’s also less neurally developed than a shrimp. Any electrical activity at this point is less developed than the activity in a shrimp’s nervous system,' she said.

Gotta catch 'em all! Others shared their own rebuttals, with some cracking jokes about the embryo image

She also pointed out that at six weeks, the embryo is 0.2 inches, the side of a pea.

At that stage, the embryo is still 18 weeks away from being viable, and even then, there is only a 50 per cent chance of survival. Most doctors say the age of viability for a fetus is 24 weeks, or nearly six months along.

Emily also proceeded to answer other anti-abortion commenters, too, arguing with their definition of life.

'Life as in “there has been cell division” and life as in “being viable and capable of self-sustaining existence” are not the same concept,' she wrote.

She also noted against the idea that 'late-term abortions' are common.

'Unwanted pregnancies are terminated earlier, because as the name says, the pregnancy is unwanted.

'Third trimester abortions are almost exclusively wanted pregnancies being terminated for health & survival reasons,' she wrote.

'Most places actually already have a cutoff, often between viability (~24 weeks) & start of the third trimester (28 weeks).

'Fewer than 1.5% of all abortions occur after 21 weeks — this makes sense, as women wanting an abortion won’t choose to remain pregnant for 6 months first,' she went on.

A six-week-old fetus also has no eyes or nostrils.

Emily's scientific and lengthy response has earned thousands of likes from supporters.

But she wasn't the only critic to respond to Liz — just the most articulate and serious.

Others left more humorous comments, telling Liz that the image she posted didn't make them view an embryo as a baby, but more of a sea creature or Pokémon.

'Floats in liquid, can’t breathe oxygen, .7 cm ... congratulations, it’s a seahorse!' quipped one.

'The "arms and legs" look like fins and it has a tail. I think this is a baby beluga,' wrote another.

'That’s a Pokémon,' a third person asserted.

A fourth wrote, 'Looks like Charmander to me.'