Characterize the carpel of a flower
What will be an ideal response?
The carpel (or carpels) is in the center of the flower and represents the female reproductive structure. At the base of the carpel is the ovary that contains the ovules. The ovules contain the egg, and later mature to form a seed. The tip of the carpal is the stigma, where pollen grains land, and stick, as it produces a sticky substance. The stigma is supported by the "neck" or the style.
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A cage containing male mosquitoes has a small earphone placed on top, through which the sound of a female mosquito is played. All the males immediately fly to the earphone and go through all of the steps of copulation
What is the best explanation for this behavior? A) The males learn to associate the sound with females. B) Copulation is a fixed action pattern, and the female flight sound is a sign stimulus that initiates it. C) The sound from the earphone irritates the male mosquitoes, causing them to attempt to sting it. D) The reproductive drive is so strong that when males are deprived of females, they will attempt to mate with anything that has even the slightest female characteristic. E) Through classical conditioning, the male mosquitoes have associated the inappropriate stimulus from the earphone with the normal response of copulation.
For most eukaryotic genes, translation begins in the____
a. cytosol b. nucleolus c. nucleus d. mitochondria e. Golgi apparatus
Joints are areas of connection between two
a. bendable regions of the skeleton. b. bones. c. glands. d. cartilage regions. e. of none of these.
A patient with advanced colon cancer just had most of his large intestine removed. What process will be most reduced in this patient as compared to a healthy person?
A. Detoxification of harmful substances B. Absorption of fatty acids and glycerol into lymph capillaries C. Digestion of cellulose D. Absorption of water into the blood E. Absorption of sugars and amino acids into the blood