Where would coelacanths be located on a branching tree diagram? a. Closest to modern fish c. Closest to extinct fossil fish b. Closest to crocodiles d. Closest to modern worms

The reproductive system of a male mammal provides (1) support for the internal development of the embryo (2) materials through the placenta (3) a means for the delivery of gametes (4) the ovaries for gamete production

Which is the most common source of erosion in the high elevations of the Swiss Alps? a. wind b. plants c. liquid water d. glaciers

A bacterial cell can live independently of other cells and does not have a membrane surrounding its nucleus. Which set of terms can be used to describe a bacterial cell? A. multiclelluar and eukaryotic B. multicellular and prokaryotic C.

He lock-and-key mechanism refers to

What can affect an organisms traits

Genetic disorders can result when sister chromatids fail to separate properly. During which phase is this problem most likely to occur? A: g1 phase B:g0 phase C: Cytokinesis D:Mitosis

4. Which change describes a demographic transition? a. a population moves from a high birthrate and death rate to a high birthrate and low death rate b. a population moves from a high birthrate and low death rate to a low birthrate and death rate c.

Changes in genes within a kind do not form a different kind. true or false

This is the energy that comes to Earth from the sun.

If we increase our food intake, we generally gain weight. nutrition scientists can calculate the amount of weight gain that would be associated with a given increase in calories.