Answer:
Red blood cells
Explanation:
They transport Oxygen throughout the body.
Photosynthesis releases oxygen<span> into the atmosphere and cellular respiration uses the </span>oxygen<span> to </span>release energy from food<span>. The </span>process that releases energy from food molecules by producing ATP in the absence of oxygen<span>.</span>
DNA because it tells each organelle their functions.
Answer:
When using a microscope, generally magnification is higher and a ruler will not work unless you are using a very low power stereo microscope. When using a compound high power microscope an eyepiece reticle is used to make measurements.
Answer:
1.Spring 2.Fall 3.Winter 4.Summer
Explanation:
I think this is right because the tilt of the Earth means the Earth will lean towards the Sun (Summer) or lean away from the Sun (Winter) 6 months later. In between these, Spring and Autumn will occur. The Earth revolves around the Sun. ... The Earth's movement around the sun causes the seasons.
I hope this will help, but if you feel unsure of my answer the explanation will probably point to the correct answer.