This topic contains a solution. Click here to go to the answer

Author Question: _____ are often the first arrivals in spring at nesting sites. a. Mallards b. Canada geese c. ... (Read 31 times)

WWatsford

  • Hero Member
  • *****
  • Posts: 539
    • Biology Forums!
_____ are often the first arrivals in spring at nesting sites.
 
  a. Mallards
  b. Canada geese
  c. Ruddy duck
  d. Pintails

Question 2

Fall migrations are triggered by _____ .
 
  a. warmer weather
  b. rainfall amounts
  c. colder weather
  d. food sources



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jonathanballen97

  • Sr. Member
  • ****
  • Posts: 347
Answer to Question 1

c

Answer to Question 2

a




WWatsford

  • Member
  • Posts: 539
Reply 2 on: Jul 21, 2018
Thanks for the timely response, appreciate it


dantucker

  • Member
  • Posts: 346
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

For a complete list of videos, visit our video library