Which of the following important characteristics distinguish simple multicellular organisms from complex multicellular ones?
A. cell membrane transport proteins
B. ability of part of the organism to do meiosis
C. cell specialization
D. having a cell wall
E. ability of individual cells to divide by mitosis
Answer: C
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Which type of phosphorylation does not require a membrane?
A. Substrate-level phosphorylation B. Oxidative phosphorylation C. Photophosphorylation D. All types of phosphorylation require a membrane.
A chromosome has a gene for long toes. Which of the following would likely be homologous
to this chromosome?
a. a chromosome with a gene for short toes b. a chromosome with a gene for long fingers c. a chromosome with a trait associated with toe shape other than length d. a chromosome from either parent
Anaerobic respiration occurs in environments without oxygen. In doing so, some organisms have evolved mechanisms to produce ATP by using other ________ acceptors.
A. proton B. phosphate group C. NADPH D. electron E. fermentation
Which type of epithelial tissue lines the blood vessels and the heart?
A. Simple cuboidal B. Complex cuboidal C. Simple squamous D. Simple columnar E. Stratified cuboidal