What is a nebula? A. The core of a massive star B. A cloud of gas and dust in space C. A swirling disk with a lot of gravity D. The debris remaining after a supernova

What is the speed of a wave with a frequency of 0.2 Hz and a wavelength of 100 m

How are climax communities different from pioneer communities?

Before starch can enter a cell, it must be (1) absorbed by simple sugars (2) diffused into simple sugars (3) digested to form simple sugars (4) actively transported by simple sugars

Explain why large animals need specialised transport system while uncellular organism do not?

Do enzymes change delta-g?

Why nitrogen must cycle through an ecosystem

How many cell types are present in your groups set of organisms?

Which of the following is the functional unit of a myofibril? a. sarcomere b. myofilament c. sarcolemma d. endomysium

20. In certain species of summer squash, fruit color is determined by two interacting genes. A dominant allele, W, determines white color, and a recessive allele (w) allows the fruit to be colored.

When you look out the window, you can see constantly moving air. air is cycled in order to reach equilibrium. B) since these change the density of air and we know the air flows from the region of high density to the region of low density.