Balance a ration for a 650 lb. calf, on a dry matter basis, that requires 1.75 lbs of CP and 9.5 lbs of TDN. The Dry Matter Intake is expected to be about 15 lbs (so don't feed more). Feed 1% of the animals body weight as hay (DRY MATTER), and use corn and soybean meal to meet the remaining needs (if any). Use corn: 10% CP 90 %TDN 88% DM
Hay 13% CP 55% TDN 84% DM
SBM 50% CP 88% TDN 90% DM

Required:
a. Calculate the dry matter composition of the daily ration.
b. What if I fed just 0.5% of the calf's body weight as forage (DM basis)?
c. What if I fed 1.5% of the calf's body weight as forage (DM basis)?

Mouse liver cells were homogenized and the homogenate subjected to equilibrium density-gradient centrifugation with sucrose gradients. fractions obtained from these gradients were assayed for marker molecules (i.e., molecules that are limited to specific organelles). the results of these assays are shown in the figure. the marker molecules have the following functions: cytochrome oxidase is an enzyme involved in the process by which atp is formed in the complete aerobic degradation of glucose or fatty acids; ribosomal rna forms part of the protein-synthesizing ribosomes; catalase catalyzes decomposition of hydrogen peroxide; acid phosphatase hydrolysis monophosphoric esters at acid ph; cytidylyltransferase is involved in phospholipid biosynthesis; and amino acid permease aids in transport of amino acids across membranes. a) name the marker molecule and give the number of the fraction that is most enriched for each of the following cell components: lysosomes; peroxisomes; mitochondria; plasma membrane; rough endoplasmic reticulum; smooth endoplasmic reticulum.

The illustration shown is an ovum, a female sex cell. a mutation in this cell may be passed to the woman’s offspring during a) birth. b) mitosis. c) dna replication. d) sexual reproduction

Which statement about relative potential energy of electrons is correct? a. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 2 s orbital of the second electron shell. b. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 3 p orbital of the third electron shell. c. an electron in the 3 p orbital of the third electron shell has more potential energy than an electron in the 2 p orbital of the second electron shell.