The line of 49 degrees north latitude follows a ...

A. National border

B. Long river

C. Mountain range

S. State border

Which of the following most likely coincides with mass extinction in the geologic time scale? A: rapid global changes to the environment B: long periods of environmental stability C: the introduction of native species to a new environment D: the

How many different types of bases can be found on DNA?

What is the difference between rough ER and smooth ER?

The Linnaeus system of classification will

Considering the need for energy, which of the following types of muscle would have the most mitochondria producing ATP? cardiac muscle skeletal muscle smooth muscle

In what way do investigations build scientific knowledge? The results of investigations lead to questions that cannot be tested. They reflect the opinions and social values of scientists, ensuring valid information.

How do chemosynthetic bacteria get energy? A. They convert carbon dioxide or methane into food without light. B. They carry out photosynthesis. C. They carry out digestion. D. They convert carbon dioxide and sunlight into sugar.

What is air currents caused by temperature differences

What does the term ' Natality ' actually mean?

What happens when ATP is converted to ADP