Boundary between warm and cold water in an ocean or a lake

What can you conclude about fossil by looking at the layers of rock? The exact age of the fossil The fossils in the lower layers are older than the fossils in the upper layers.

You are looking for a certain bacteria species in a person's microbiome. You know that if the species is present, it will make up a very tiny proportion of the overall microbiome.

Why don't scientists keep/collect everything they find?

Why plants don't need specialized respiratory system?

The law of conservation of matter applies to physical changes as well as to chemical changes. If this is true, then explain why the law of conservation of matter holds true if the amount of water in a glass that was left out overnight decreases.

Colleen has been advised by her physician to avoid taking high-dose supplements of certain vitamins because they can accumulate to toxic levels in her body. which vitamins?

In 1865, a biologist, St. George Jackson Mivart, constructed an evolutionary tree of existing primate species with many branches based on analysis of spinal columns. But to his dismay, another tree based on limb comparison was quite different.

How does the amount of rainfall affect the amount and types of seeds present on the Galapagos Islands?

If a characteristic is found in bacteria, fungi, pine trees, snakes, and humans, when did it most likely evolve?

Which property allows objects that do not produce their own light to be seen