Which formula is a hydrocarbon?

O H20

O CaCl2

CH4

CO2

Nach

Which are functions of proteins? Choose all answers that are correct. a. to be structural material b. to fight infection c. to carry electrical signals quickly through the body d. to store energy reserves

What societal needs were addressed by science in the ancient world

The earths ocean acts as a climate moderator oceans do this in many ways including all but one method evenly distributed distributing solar radiation absorbing and releasing solar energy absorbing huge amounts of carbon dioxide and providing

HOW does the smooth endoplasmic reticulum work with other parts/organelles of the cell?

Put the following terms in the order that oxygen passes through them to reach your blood: alveoli, lung, trachea, nose, bronchi.

Which of the following statements describes a proton of an atom? A has a negative charge and is located in the nucleus. B has no charge and is located in the nucleus C has a positive charge and is located in outer energy levels.

What are reasons scientists use models? To study objects far away To study objects too large To study objects too small. To study objects easily found in a lab. To study events that take place over long periods of time.

1. true false Carbon atoms form the building blocks of most living things.

Inhibiting enzymes involved in cell wall synthesis leads to which of the following? A) cell death by osmotic lysisB) a reduction in protein synthesisC) the incomplete synthesis of the bacterial cell wallD) a reduction in the amount of usable energy

In the 20th century where did the most ecologically destructive oil spill in the US