Gestation versus lactation times for monotreme, marsupial, and placental mammals? Thank you!

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gladiator answered 2 years ago

a) Discuss in detail the differences between marsupial and placental mammals b) Describe the Marsupial orders...

a) Discuss in detail the differences between marsupial and placental mammals b) Describe the Marsupial orders of mammals in detail.

Name at least 7 detailed ways placental mammals are better than marsupial mammals.

What are the main orders of placental mammals? What are some representative species and distinguishing features...

What are the main orders of placental mammals? What are some representative species and distinguishing features of each of these orders?

Exercise 2: Gestation Times The Biology Data Book reports that the gestation time for human babies...

Exercise 2: Gestation Times The Biology Data Book reports that the gestation time for human babies averages 278 days with a standard deviation of 12 days. Suppose that these gestation times are normally distributed. 1. Find the upper and lower quartiles for the gestation times. 2. Would it be unusual to deliver a baby after only six months of gestation? Explain. 3. Find the number of days such that 90% of babies have gestation times less than or equal to...

stat question and please explain, thank you A fair die is tossed two times independently: let...

stat question and please explain, thank you A fair die is tossed two times independently: let W denote the product of the outcomes. Find the probability that W = 6.

Pregnancy Questions: A) Where would you expect to find aromatase in the fetal-placental unit? Select one:...

Pregnancy Questions: A) Where would you expect to find aromatase in the fetal-placental unit? Select one: a. Syncytiotrophoblast cells b. Cytotrophoblast cells c. The fetal adrenal glands d. There is no aromatase expressed in either the placenta or fetus B) Match the structure with the cells or groups of cells from which it develops. Structures: - yolk sac - amnion - nervous system - embryo as a whole - chorion Cells/Groups of Cells to choose from: - Embryonic ectoderm -...

QUESTION 3 (A) In dairy production, what do you understand by the term ‘lactation cycle’? (1...

QUESTION 3 (A) In dairy production, what do you understand by the term ‘lactation cycle’? (1 Mark) (B) Mention the four (04) phases of the lactation cycle and highlight the specific time periods when these phases occur in dairy cows (4 Marks) (C) Explain how milk production varies in the different phases of the lactation cycle (4 Marks) (D) Relate the milk production to the feed intake and body weight of the dairy cow during the four phases of the...

A pet store wants to compare day versus evening visiting times to determine when is a...

A pet store wants to compare day versus evening visiting times to determine when is a more popular time for their Siamese cat exhibit. They randomly observed people viewing the exhibit and noted 30 visitors stayed for an average of 15 minutes with a standard deviation of 3.1 during the day. During the evening, 26 visitors stayed for an average of 9 minutes with a standard deviation of 2.0. Assuming a normal distribution, determine if there is a significant difference...

Sex determination in Mammals. You have identified a gene that you have named “mont1” (for ‘make...

Sex determination in Mammals. You have identified a gene that you have named “mont1” (for ‘make ovaries not testes’) that is expressed at the time when the bipotential gonad becomes specified to become an ovary. Because of this “show it” evidence that mont1 is expressed in the right place at the right time, you hypothesize that mont1 is a critical regulator of the female primary sex determination pathway to specify ovary development. From what you know about the primary sex...

Researchers compared the reaction times in people who were sleep deprived versus people who had gotten...

Researchers compared the reaction times in people who were sleep deprived versus people who had gotten a full night's rest. The following are typical data showing the reaction time scores (in seconds) for two groups (samples) of participants. ______________________________ Sleep deprived Well Rested 3 5 2 3 7 3 1 2 2 1 6 1 9 2 11 1 2 3 3 5 10 3 3 5 4 2 3 1 3 2 Compute the mean, the range, the variance,...

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