In a leaf, what is the outer layer of the vein composed of?

Which of the following describes the nervous system integrative function? A) senses changes in the environment B) analyzes sensory information, stores information, makes decisions C) responds to stimuli by gland secretion or muscle contraction

An ocean trench forms when?

Corals and the algae that live in coral polyps have a special relationship. Each contributes something that the other needs to survive. This is an example of

If blood pressure is too high what should homeostatic regulation do

What is the role of the gall bladder

Organelles that act like a digestive system which takes in nutrients, breaks them down, and creates energy rich molecules for the cell

How much do landscape features on the moon change over time compared to landscape features on Earth? Explain your answer.

Why is it extremely dangerous to eat the "destroying angel" mushroom?

Based on the data collected the highest rising bread would use yeast warm water and the addition

Explain how organisms contribute to fossil fuels.