Ava is five weeks pregnant, and her fetus is beginning to develop three layers that will form the essential human functions. What will the ectoderm layer become over the course of Ava's pregnancy?

heart, circulatory system, bones, muscles, and reproductive system
skin, nervous systems, connective tissue, and eyes
hair, fingernails, and eyebrows
lungs, intestines, and bladder

Which of the following quotes best represents the theme of gender in the novel?None of the Iraqi men seemed to take notice of Marla, but the women did, and I saw one of them smiling.""We want freedom, we want love, we want a chance to go to heaven when the time comes."we will be able to divert men away from that operation to providing security for your people."You're not allowed to treat Iraqis." good monke good monke dog Arizona, New Mexico, and Nevada must honor the Native American reservation treaties drawn up by the..........government for the Native American Nations. Please help me I do not know how Explain the Confucian principle of li.I NEED HELP FAST I WILL GIVE BRAINLEST TO WHO EVER HAS THE SMARTEST ANSWER AND WHOEVER HELPS!!! THANKS!!! What happens when weathering and erosion work together? A.Weathering B.Raining C.Erosion D.breakingBRAINLIEST Find the solution to the system of equations.You can use the interactive graph below to find the solution.\begin{cases} y=-7x+3 \\\\ y=-x-3 \end{cases} y=7x+3y=x3 Which expressions are equivalent to 6a(5+d) ?Select each correct answer.30a+6ad30ad30a+(6ad)(6a5)+(6ad)11a + d Who invented the modern printing press? Question 49 options: Johannes Gutenberg Albrecht Drer Jan Van Eyck Martin Luther The First Agricultural Revolution is best described as a period during which __________.A.tools made of bone and stone were first widely usedB.humans were nomadic and lived in small communitiesC.humans hunted and gathered for subsistenceD.humans cultivated plants and domesticated animals What does mr.Jones shout while drinking in chapter 1 of winter dream A molecule contains 24.36 g of nitrogen and 62.64g of sliver which model represents 1/3 HELP!!! STATS!!! A random sample of 100 felony trials showed a sample mean waiting time between arrest and trial = 173 days with a population standard deviation of waiting times = 28 days. Find a 99% confidence interval for the population mean waiting time.Stats question, I'm really stck please help me! Evaluate the following expression when n = 6.|n - 6| - |5 - n| Explain how growing personal income is related to economic conditions. How does the final line of the poem reveal the theme?AIt illustrates how secrets can lead to disaster.It shows that praise can be used to deceive others.It suggests that unhappiness can lead to evil actions,DIt highlights how music can be both beautiful and dangerous. express the scientific notation:4830000000 with all formula The Environmental Protection Agency has been the environments watchdog for close to years.fivetwenty-fiveforty-fivesixty One of the base angles of an isosceles triangle is 40. Which is the triangle classification according to itsangles?A. acuteB. rightC! obtuseD. equiangularPlease help