How do stars luminosity compared with their radii

Why cant Solar Cells night? work at

Which formed element can be described as membrane-enclosed cytoplasmic fragments? a. monocytesb. erythrocytesc. lymphocytesd. platelets

Which of the following is true? Water is important to some organisms. Some substances must be dissolved in water before they can be used. All organisms obtain water through food. Plant cells are unaffected when water is scarce.

As photosynthesis occurs, the reactants and energy on the left are used, generating the products on the right. a plant with access to more reactants can grow more than a plant with access to fewer reactants.

Which selection is a characteristic or both living and non living things

What is the name of the tallest man alive

N sexual reproduction, an offspring is produced with genes from both parents. when the offspring has a new genetic variation that it got from neither of its parents, it is called

What is the purpose of a cow "sitting quietly chewing"?

If one stubs one's toe, the painful sensation is carried to the brain by neurons in the:Group of answer choice A. soccipital lobe. B. frontal lobe. C. central nervous system. D. peripheral nervous system.

a rock is dropped from a height of 60 m and is in free fall. What is the velocity of the rock as it reaches the ground 3.5 seconds later?