This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why are short-tailed opossums classified as marsupials if they do not have a pouch? What will be ... (Read 28 times)

dbose

  • Hero Member
  • *****
  • Posts: 597
on: Jul 21, 2018
Why are short-tailed opossums classified as marsupials if they do not have a pouch?
 
  What will be an ideal response?

Question 2

What is the Whitten effect?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Briannahope

  • Sr. Member
  • ****
  • Posts: 364
Reply #1 on: Jul 21, 2018
Answer to Question 1

They have marsupial bones (os marsupalia) that form part of the pelvic attachment to the abdominal muscles. STOs have skin around each nipple that forms a cushion or donut around each young to secure the attachment. Embryos are delivered in an undeveloped state to further develop outside the uterus.

Answer to Question 2

The Whitten effect is the synchronization of estrous cycles when a new male is introduced to a colony of females.


dbose

  • Member
  • Posts: 597
Reply 2 on: Jul 21, 2018
Excellent

Sarahjh

  • Member
  • Posts: 370
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

The average adult has about 21 square feet of skin.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

A 3-tonne (3.0-long-ton; 3.3-short-ton) great white shark off Isla Guadalupe A 3-tonne (3.0-long-ton; 3.3-short-ton) great white shark off Isla Guadalupe
Slender-Tailed Meerkat Slender-Tailed Meerkat
Prehensile-Tailed Porcupine Prehensile-Tailed Porcupine
Black-tailed Prairie Dog (Cynomys ludovicianus). Black-tailed Prairie Dog (Cynomys ludovicianus).
Video: Membrane transport proteins - pores, gated channels and pumps

For a complete list of videos, visit our video library