These generally have greater population densities than less suitable sites:a
metahabitats.
b. sink habitats.
c. source populations.
d. source habitats.
e. K-selected habitats.
C
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An example of an endotherm is a ____
a. mouse b. salamander c. turtle d. frog e. snake
Select all of the following statements that describe the structure of a molecule of DNA.A) twisted double helixB) single-strandedC) contains the nitrogenous bases, adenine, thymine, cytosine, and guanineD) contains deoxyribose sugarE) contains the nitrogenous bases adenine, uracil, cytosine, and guanine
What will be an ideal response?
The majority of animal species are _____.
Fill in the blank(s) with the appropriate word(s).
Geologists have evidence that over the past 1.5 billion years
A) Earth's landmasses have remained in the same shape and positions as they have in the current time. B) Earth's landmasses have joined into a single continent and split back apart again on three occasions. C) Earth's landmasses have changed positions extensively but have remained separate and in the same shapes. D) Earth's landmasses have changed shape and have been entirely submerged in water on three occasions.