Which substance is used by plants as a source of food?

How do hollow bones improve the survival of birds? (1 point ) 36. During rehearsal for the Founders' Day choirprogram, the director, Mrs. Mazurek, tried 3 differentconfigurations, each using all the choir members at therehearsal. One configuration was to have only rows of12, one was to have only rows of 15, and one was tohave only rows of 20. None of these configurationsworked because for each, the last row had 1 personless than the other rows. What was the least of thepossible numbers of choir members at the rehearsal? 1. Why is it important to practice infection control?a. As an aide, you should carry germs from one patient to all the othersB. Many of your patients are highly susceptible to infection.c. Many of your patients would experience serious consequences of infection.d. All of the above. Part CWhat was the total amount spent on Veterans Benefits? a metallic surface is illuminated with light of wavelength 400 nm. if the work function for this metal is 2.4 eV. what is the maximum kinetic energy of the ejected electrons, in electron volts?Assume that 1 eV = 1.6 * 10^-19c = 3 * 10^8h = 6.626 * 10^-34I already got the answer before and I know that the max kinetic energy is 0.71 eV but when I tried to solve it again, I forgot what to do.I tried getting the cut off wave lengths and using that combined with the wavelength provided to get the K.E max but it didn't work What is ima of the doorknob Which of these is a process during which the hydrosphere interacts with the exosphere? (4 points)Absorption of rainwater by soilAbsorption of heat in lakes and oceansCondensation of water vapor into waterSolidification of water into ice What is the directrix of the parabola defined by `(1)/(4)(y + 3) = (x 2)^2`? unethical public leadership examples 1 tablespoon is equivalent to _____ ml. please help with this thank you! if we call aliens, aliens on our planet then would we be called aliens on theirs 1. Marc and Julian are considering the following investments for their portfolio. Helpthem evaluate each one by weighing the risk versus return. Rank each as low,moderate, or high in each category. (12 points) Which of the following is most likely the next step in the series? There is a rack of 11 billiards balls, numbered from 1 to 11. If one ball is selected at random, determine the odds in favor of it being at an even-number ball. This program has a bug. When the green flag is clicked, nothing happens. How would you fix it?A. Change the number inside the Move blockB. Change the number inside the repeat blockC. Make the sound louder with the purple blockD. Connect the event block directly to the repeat block Write your answer in simple solution (4x^3+2x+6)+(2x^3-x^2+2) How do plants photosynthesize in winter? When they shed their leaves. What state holds the countrys oldest fourth of july parade?. Empirical research shows an opinion.True or false