Read the excerpt from Roll of Thunder, Hear My Cry.

Cautiously, I climbed from the bed, careful not to awaken Big Ma, who was still snoring soundly, and crept to the door. I pressed my ear against the door and listened, then slipped the latch furiously and darted outside. "Boy, what you doing here?" I hissed.

Which words from the excerpt best help the reader determine an angry tone?

A. “furiously” and “hissed”
B. “careful” and “crept”
C. “door” and “latch”
D. “listened” and “slipped”

Which of the following are the functions of the skeletal system? blood cell production in soft marrow tissues and mineral reserves largest organ of the body for defense and support vitamin d production and pumping blood through vessels voluntary movement and contractile movement

The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.