This 1-inch section of the brain controls the breathing rhythm and heart rate
A) medulla oblongata B) temporal lobe C) occipital lobe D) hippocampus
Answer: A
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Geckos are able to cling to vertical walls due to ____
a. polar covalent bonds b. van der Waals forces c. ionic bonds d. hydrogen bonds e. nonpolar covalent bonds
Relative to the mRNA, which of the following moves during translocation?
a. attached tRNAs and the ribosome b. attached tRNAs and the polypeptide chain c. the ribosome only d. the ribosome and the polypeptide chain e. the polypeptide chain only
A community in ecology is defined as ________
A) a group of organisms, all from the same species, and their surrounding environment B) organisms from multiple species interacting in the same place C) organisms from multiple species interacting in the same place, and their surrounding environment D) the global ecosystem
You are mapping the location of two genes in Drosophila, listless l and blind b. (l+ l+ b+ b+) and (l+ l b+ b) flies are normal, but (l l b b) flies don't move around very much and cannot detect the location of a light source. You perform a testcross with a doubly heterozygous fruit fly and get the following results:listless, sighted: 100 listless, blind: 400 normal activity, sighted 400 normal activity, blind 100 What is the distance between these two genes?
A. They are 10 map units apart. B. They are 40 map units apart. C. They are on different chromosomes. D. They are 80 map units apart. E. They are 20 map units apart.