Choose the true statements about the cichlid fish of Lake Malawi.
_____ Within a few million years, hundreds of cichlid species evolved within this lake.
_____ Hundreds of different genes determine the length of the jaw in these fish.
_____ Jaw length does not affect body shape and size.
_____ Variation in jaw structure among species allowed cichlids to specialize in many niches.
__X__ Within a few million years, hundreds of cichlid species evolved within this lake.
_____ Hundreds of different genes determine the length of the jaw in these fish.
_____ Jaw length does not affect body shape and size.
__X__ Variation in jaw structure among species allowed cichlids to specialize in many niches.
You might also like to view...
There are ____ basic patterns of Mendelian inheritance
a. three b. four c. five d. six e. seven
In a less severe form of combined immune deficiency, the individual
A) has normal numbers of T and B cells. B) has no white blood cells. C) has some T cells but lacks B cells. D) lacks both T and B cells.
Which of these is not a component of cell walls in plants?
1.cellulose 2.chitin 3.lignin 4.pectin
Choose the letter of the best match from the following:A. Abscisic acidB. TrichomesC. AquaporinD. EndodermisE. StomaPore in plasma membrane that allows water movement.
Fill in the blank(s) with the appropriate word(s).