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The black redstart is a bird species that migrates a relatively short distance from Germany to the Mediterranean region of Europe, whereas the common redstart travels as much as 5000 km from Germany to central Africa.  The scale in the figure below shows the duration of migratory restlessness in captive black redstarts, common redstarts, and hybrids between the two species all of which had been hand-raised under identical conditions.  (a) Why do black redstarts exhibit migratory restlessness at night for fewer days than common redstarts?  (b) What does the behavior of the hybrids tell us about the genetic differences hypotheses for the differences in duration of migratory restlessness in the two parental species?  

When assessing a client’s mental status, which of the following would be key areas to include? Select all that apply.

Couchoux et al. (2018) studied effects of parasites on the reproduction of their hosts of Gammarus roeseli, a freshwater amphipod (Crustecean). In particular, they studied strategic sperm investment of males to uninfected females or to those who were infected with one of two microsporidian parasites (N. granulosis or Dictyocoela sp)   (a) Is this a proximate or ultimate question?  Why?  (b) Based on the figure below, what conclusions can the researchers make?  Refer to the figure in your answer.       

Identify the complete relational schema for the final ERD below. You need to identify all relations, their attributes, Primary Keys (PK) and Foreign Keys (FK) keys, entering them into the blank  boxes according to the following example: Example: PROJECT(pno, dno) PK: (pno)  FK: (dno) First, enter name of relation and the attributes; then the value(s) for the PK and then values for the FK (if any). Relations fit on specific boxes. Look carefully how to place the relations in the boxes provided so all the responses could fit (attributes, PKs, FKs). NOTE: Use exactly the same spelling and letter case, otherwise it will be not recognized correctly by Carmen.  R1 is [R1] ([a1],[a2],[a3]), PK:([pk1]), FK:([fk1]) R2 is [R2] ([b1],[b2]), PK:([pk2]) R3 is [R3] ([c1],[c2],[c3]),         PK:([pkc1], [pkc2],[pkc3]),         FK: ([fkc1]) R4 is [R4] ([d1]),          PK:([pkd1]), R5 is [R5] ([e1],[e2]),         PK:([pke1], [pke2]),         FKs: ([fke1],[fke2])  

A firm in a competitive market is earning no economic profit in the short run.  What would one expect

7. The adjusted R2 statistic can get smaller if non-significant terms are added to a model.

4. In an unreplicated design the degrees of freedom associated with the ‘pure error’ component of error is zero.

Use the following information to answer Questions 21 – 24. Round all answers to two decimal places.  Question 21: Construct a 95% confidence interval for the regression coefficient for X1. The LCL is ____________ .  

A quadratic term in a model can result in a mound or a bowl in a response surface. 

Construct a 95% prediction interval for a new observation at .  The LPL is _______________.