Ahuman sperm cell has select one:

a. 23 paired genes.
b. 23 unpaired chromosomes.
c. 46 paired chromosomes.
d. 46 unpaired genes. straighterline

Plants are used for so many things. in your house alone, you can probably look around you and see where plants have been used. for this project, you will identify various uses of plants in your home. directions make a list of objects, products, and any other items around your house where plants were involved in the production of the item. you should have a list of at least twenty items. then respond to the following questions: note: your list of objects and the answers following should be at least 200 words in length. what if plants no longer existed on earth? how would your life be different?

Which part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?

When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?