Biology Forums - Study Force

Which of the following occurs during anaphase I of meiosis?
(A) The sister chromatids are pulled to opposite poles of the spindle.
(B) The spindle apparatus forms.
(C) The nuclear envelope disintegrates.
(D) The centromeres replicate.
(E) The homologous pairs of chromosomes separate.


2)All living cells have which of the following structures?
(A) Endoplasmic reticulum
(B) Nucleus
(C) Plasma membrane
(D) Cilia
(E) Vacuole

3)Digestion of proteins in mammals begins in which of the following organs?
(A) Mouth
(B) Stomach
(C) Small intestine
(D) Colon
(E) Gallbladder
 
4)A photosynthetic eukaryotic cell typically contains
(A) chloroplasts only
(B) mitochondria only
(C) both chloroplasts and mitochondria
(D) either chloroplasts or mitochondria, but never both at once
(E) neither chloroplasts nor mitochondria

5)A theory fails to meet the criteria of scientific methodology if
(A) it is unpopular
(B) it contradicts other theories
(C) it has not been conclusively proved
(D) it has not been stated in mathematical terms
(E) no experiments can be designed to test it


6)Which of the following best describes the principal way in which Earth’s atmosphere is heated?
(A) Heat flows from the center of Earth and is conducted through the ground to the air.
(B) The atmosphere absorbs short-wave radiation from the Sun as the Sun’s rays pass through it.
(C) The earth absorbs short-wave radiation from the Sun and radiates long-wave radiation, which is absorbed by the atmosphere.
(D) The air absorbs short-wave radiation from the Sun after the radiation has been reflected by the clouds.
(E) Warm air rises and cold air sinks and, as it sinks, is warmed by compression.

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