In order for new species to develop, there must be a change in the

What begins when a neuron is stimulated by another neuron or by a stimulus in the environment?

What is binary fusion

Martha is telling her teacher how an animal cell is like a house. Which part of the animal cell is like the doors and windows in Martha's house? Cell membrane Cytoplasm Nucleus Vacuole

What phase of mitosis occurs when the doubled chromosomes are pulled apart by the centrioles? A. Anaphase B. Interphase C. Metaphase D. Telophase

Which metaphor for aging does Shakespeare use in sonnet 73? A. Air B. Choirs C. Birds D. Autumn

The structure of eugenol is given below. select which functional group below is present in eugenol.

Modern Humans are classified as the species?

Which of the following is NOT a benefit provided by soil? 1. provides a habitat for animals 2. allows for water storage for plants 3. can be blown or washed away from its parent rock 4. provides minerals and nutrients for plants

What can cause changes in DNA sequences? A. mutations B. genetic drift C. gene flow D. proteins

What is the definition of chemical energy