Me on these 1. read the excerpt from a reading passage titled "matter and energy: evaporation and condensation." condensation an example of condensation can be seen when drops of water form on the outside of a glass of ice water. the drops seem to appear from nowhere, but they actually form from water vapor in the air. the dew that forms on grass overnight is another example of condensation. condensation happens when molecules in a gas cool down. as the molecules lose heat, they lose energy. as a result they slow down. they move closer to other gas molecules. finally these molecules collect together to form a liquid. (source: encyclopaedia britannica, adapted by newsela staff, 06/02/2017) describe the process of how dew forms on a blade of grass. question 10 options: dew forms on grass when water vapor forms when molecules cool and separate. dew forms on grass when water vapor forms when liquid cools and becomes a gas. dew forms on grass as water vapor warms up on blades of grass overnight. dew forms on grass when water vapor forms when molecules cool and join together. 2. read the following lab report from a chemistry experiment. determine their hypothesis. we wanted to know how temperature affected the volume of a gas. we investigated this by filling a balloon with air and heating and cooling it, comparing the circumference of the balloon before and after. our results showed the balloon got bigger when heated and smaller when cooled. these results support our hypothesis. question 12 options: gases contract when heated and expand when cooled. the gas temperature will not impact the circumference of the balloon. gases expand when heated and contract when cooled. volume and temperature are not related.

A Dew forms on grass when water vapor forms when molecules cool and join together.

B  Gases expand when heated and contract when cooled.

question#1

ans:

cell is the basic unit of organization of all living things. cells are often called the building block of life and it is the smallest unit of life. the study of cell is called cell biology. cell consists of cytoplasm enclosed within membrane, which contain bio-molecules such as proteins and nucleic acid.

two third of cell is water, which means that two-third of your whole body is water. the rest is the mixture of molecules, mainly proteins, lipids and carbohydrates.

question#2

ans:

organ:

an organ is a group of tissues specialized to form a functional unit. an example is the heart in animals.

organ system:

an organ system is a group of several organs whose functions are synchronized to release an effective action in a living organism. an example is digestive system.

question#3

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#4

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system—working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#5

our body works because of the interactions that happen between organs and organ systems.  

for example:  

the heart to regulate blood flow throughout the body. the blood carries oxygen and nutrients to the cells and carries carbon dioxide and waste away from the cells. body systems work together in maintaining a constant internal environment. when this balance is disrupted, the body systems may not function properly, and human health can suffer.   you start to feel bad.

thats not even an aswer choice