Rock layers N and J occur on either side of the unconformity labeled I. What can you conclude from the cross section about the relative ages of layers N and J?

The graph of nucleon mass versus atomic number ends fairly abruptly. Why aren’t there any atoms with atomic masses of 300?

The following four questions test your understanding of the principles of relative dating. In the cross section below, intrusion A is an igneous rock formation radiometrically dated at 37 million years, H is a fault, and O and I are unconformities. In the following four questions you are asked to use the principles of relative dating to come to conclusions about the rock layers. Image Description Diagram of several cross-sections. Starting from the top, an F layer runs horizontally across the surface. Beneath the layer F are several other layers going diagonally down across the screen. Four layers meet layer F from below. Starting on the left side of layer F is layer J. To the right of layer J is the unconformity line labeled I. To the right of the unconformity line I is the layer N, K, and B with B being the rightmost layer touching layer F. Going back to the layer J, which is below the unconformity line I, there is a portion of the igneous rock intrusion A in the middle of J. The A intrusion spans from the unconformity line I down to the bottom of the image. To the left of the instrusion A and below the layer J lies layer D and M, with layer M beneath layer D. Beneath layer M lies the unconformity line labeled O. In the middle of the unconformity line O is a fault labeled H. The fault line H runs from line O to the bottom of the screen, offsetting the last four layers C, L, G, and E, with E being the last layer.

The next question tests your understanding of fatty acids and their properties. In the figures below, white balls are H atoms; red balls are oxygen atoms and gray balls are carbon atoms. A. Image Description A horizontal chain of atoms. Starting on the left are three white atoms connected by single bonds to a gray atom, which is also connected to a second gray atom by a single bond. The second gray atom, while being connected to the first gray atom, is connected to two white atoms and a third gray atom, each with single bonds. The pattern of gray atoms in the chain continues where they have a gray atom on either side and two white atoms, all connected by single bonds, until the end of the chain of gray atoms is reached. The eighteenth final gray atom, while being connected to the second-to-last gray atom by a single bond, has a double bond with one red atom and a single bond with a second red atom. The second red atom also has one white atom connected by a single bond. B. Image Description A semi-circle chain of atoms. Starting at the top of the semi-circle are three white atoms connected by single bonds to a gray atom, which is also connected to a second gray atom by a single bond. The second gray atom, while being connected to the first gray atom by a single bond, is connected to two white atoms and a third gray atom, each with single bonds. The third gray atom, while being connected to the second gray atom by a single bond, has one white atom connected by a single bond and a fourth gray atom connected by a double bond. The fourth gray atom, while being connected to the third gray atom by a double bond, has one white atom and a fifth gray atom, each connected by a single bond. This pattern of a gray atoms connected to the next gray atoms by a single bond or double bond alternates around the semi-circle until the last gray atom is reached. The eighteenth final gray atom, while being connected to the second-to-last gray atom by a single bond, has a double bond with one red atom and a single bond with a second red atom. The second red atom also has one white atom connected by a single bond. C. Image Description A v-shaped chain of atoms. Starting on the left is one white atom connected by a single bond to a red atom, which is connected by a single bond to a gray atom. This first gray atom is also connected by a double bond to second red atom and a single bond with a second gray atom. The second gray atom, while being connected to the first gray atom by a single bond, has two white atoms and a third gray atom, each connected by single bonds. The pattern of a gray atom having two white atoms and a gray atom on either side continues until the middle of the chain is reached where there is a double bond between two gray atoms. This double bond makes the chain v-shaped. Each of these gray atoms with the double bonds has only one white atom, as well as another gray atom, each connected by single bonds. The pattern then continues again of a gray atom having two white atoms and a gray atom on either side with single bonds until the end of the v-shaped chain is reached. The eighteenth final gray atom, while being connected to the second-to-last gray atom by a single bond, has three white atoms each with single bonds. D. Image Description A slightly diagonal chain of atoms. Starting on the left is one white atom connected by a single bond to a red atom, which is connected by a single bond to a gray atom. This first gray atom is also connected by a double bond to second red atom and a single bond with a second gray atom. The second gray atom, while being connected to the first gray atom by a single bond, has two white atoms and a third gray atom, each connected by single bonds. The pattern of a gray atom having two white atoms and a gray atom on either side continues until the middle of the chain is reached where there is a double bond between two gray atoms. This double bond makes the chain slightly diagonal in its angle. Each of these gray atoms with the double bonds has only one white atom, as well as another gray atom, each connected by single bonds. The pattern then continues again of a gray atom having two white atoms and a gray atom on either side with single bonds until the end of the slightly diagonal chain is reached. The eighteenth final gray atom, while being connected to the second-to-last gray atom by a single bond, has three white atoms each with single bonds. Arrange the molecules according to melting temperature, highest melting point first lowest last. Which of these options has the molecules in the correct order?

Scientists are trying to fabricate heavy elements through fusion. One element that they have not yet been able to make would have an atomic number of 120 and would be positioned in column 2A on the periodic table directly below Ra. Based on observed patterns, scientists have already predicted how this element might behave. In the next three questions, you are asked to use your understanding of chemistry to make some predictions of your own.

In meiosis, allele separation during _____ is the chromosomal basis of segregation.

A human skin cell in G1 of interphase has ___ copies of every gene. In G2, that same cell has ___ copies of every gene.

Which of the processes introduces genetic diversity and contribute to the creation of daughter cells that are genetically unique from one another and from the parent cell?

A gene that causes various coat patterns in wild and domesticated cats also causes a cross-eyed condition. The cross-eyed condition is slightly maladaptive (makes the cats less successful in the wild). Imagine an environment where one coat pattern is highly adaptive. However, it is also associated with the crossed eyes. The result is that both the coat pattern and the cross-eyed condition increase in a feline population over time. Which statement below accurately describe the example above?

6. What question does this correlated query answer? Begin your answer with “This query answers the question: which customers…” SELECT customer_id, first_name, last_nameFROM customers cWHERE NOT EXISTS( SELECT *  FROM orders o  WHERE o.customer_id = c.customer_id)ORDER BY first_name, last_name;