Which of the following is NOT a theory for the dinosaur extinction?

dinosaurs were allergic to pollen

increased radiation levels

diseases from other animals

none of the above

Describe the nonliving components of the environment in an ecosystem?

What are the two types of weathering

The phenomenon of one gene being responsible for or affecting more than one phenotypic characteristic is

When is a landslide called a mudflow

The cell has a cell wall and many organelles including mitochondria and nucleus a vacuole and several chloroplast

How can individuals play a role in the evolution of an entire species

Which of these are found in the lymph? A. red blood cells B. white blood cells C. antibiotics D. platelets

The visual predation hypothesis proposes that:a) better vision allowed for better access to fruits and small insects b) primate traits arose as adaptations to preying on insects and small animals c) species could see predators from farther away,

A researcher wants to know whether children eating a high-protein breakfast will have a higher test grade. half of the children in the study eat a high-protein breakfast while the other half eats their normal diet.

What is the mass of an atom that has 4 protons, 5 neutrons and 4 electrons? 5 8 9 13