Conservative lawmakers in multiple states are facing pushback from Democrats and others on proposed legislation to educate students about the “miracles of early fetal development as an educational tool.”

West Virginia senators on Tuesday voted 27-6 to require students in eighth and tenth grade to watch a “Baby Olivia” video on fetal development produced by Live Action as part of their health class, NPR reports.

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Live Action, a pro-life nonprofit, contends the video mandated by Senate Bill 468 uses animation to portray the “miracles of early fetal development as an educational tool,” but Democrats argued it violates the constitution because it’s based on religious beliefs.

The video was created with “award-winning content” from the Endowment for Human Development, which describes itself as a “nonprofit organization dedicated to improving health science education and public health.” The EHD is “committed to neutrality regarding all controversial bioethical issues,” and its content is distributed by National Geographic, according to Live Action.

“As a classroom teacher, I know that all my students learn in different ways. Some students learn from reading things. Some students learn from writing things. Some students learn from touching and doing things. And some students learn from visual representation,” said Republican Senate Education Committee Chairwoman Sen. Amy Nichole Grady, a fourth-grade teacher.

“This computer-generated video and animated video puts it in terms that kids can understand and lets them see it, lets them see the growth happen,” she said. “It’s really important that they do that because they’re visual learners.”

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“This video is not political, and it is not religious,” said Sen. Patricia Rucker, R-Jefferson. “It goes through the basic stages of human development in an approachable way that is easy for a child to understand and comprehend.”

Live Action contends the video is “medically accurate” and has been endorsed by a wide variety of medical professionals, including OB-GYNs.

The video opens with a sperm meeting an egg, a burst of light, and a narrator explaining “this is where life begins, a new human being has come into existence.”

“This is when we date the beginning of human life,” Lila Rose, founder of Live Action, told NPR. “So it’s not, like, an opinion. It’s not a belief. It’s a scientific fact.”

The American College of Obstetricians and Gynecology, Democrats and others in the Senate disagree.

“Many of the claims made in this video are not aligned with scientific fact, but rather reflect the biased and ideological perspectives of the extremists who created the video,” a representative from the college told NPR.

Sen. Mike Woelfel, D-Cabell, argued SB 468 would violate the U.S. Constitution and shouldn’t be screened in schools because it’s based on religious beliefs.

“I would gladly show that video in a Catholic school that my grandchildren attend,” he said. “But I’ve taken an oath to obey the Constitution and uphold it.”

Some West Virginia Republicans agree with Woelfel and argued against the bill.

While Sen. Charles Trump, R-Morgan, agrees life begins at conception, he doesn’t “think it is a matter of proven or established science,” he said.

While the debate will continue in the West Virginia House of Delegates, NPR notes similar bills are under review by lawmakers in Iowa, Kentucky, and Missouri, as well.

Lawmakers in Iowa on Wednesday sent House File 2617 to require students to watch a video “comparable to the Meet Baby Olivia video developed by Live Action” despite opposition from all Democrats and two Republicans, the Des Moines Register reports.

“The bill ensures the teaching to our children of the basic facts about human development in a very approachable way,” Rep. Anne Osmundson, R-Volga said. “This is scientific information. This is teaching basic biology to our children. And it helps to answer one of life’s biggest questions: where did I come from?”

Iowa House Minority Leader Jennifer Konfrst, D-Windsor Heights, claimed the bill will put “content in the classroom to change students’ minds about a political issue.” The bill now heads to the Iowa Senate.

In Kentucky, a similar bill aimed at educating sixth graders cleared a House committee this week in route to a full vote in the lower chamber, while in Missouri a bill introduced in January has yet to receive a hearing.

The Associated Press reports half of the 10 largest school districts in North Dakota the wire service surveyed use the Baby Olivia video to educate students in health and human sexuality courses. A law approved last year requires those courses to include a three-minute ultrasound video and a computer-generated rendering of development in the womb, but does not specifically mandate the Baby Olivia video, though it is listed as a resource by the state Department of Public Instruction, KSDK reports.