The nutritive tissue in a mature pine seed is triploid

____________________ Indicate whether the statement is true or false.


False - haploid

Biology & Microbiology

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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.

Biology & Microbiology

Which disease CANNOT be prevented via the use of a vaccine generated from an attenuated pathogen?

A) malaria B) measles C) mumps D) rubella

Biology & Microbiology

The most common form of population

distribution arises from

a. an uneven distribution of resources. b. limited dispersal ability. c. asexual reproduction. d. efforts to protect from predators. e. all of these

Biology & Microbiology

Which statement is true of mitochondria?

a. Mitochondria are found only in prokaryotic cells. b. ATP is formed by reactions that convert carbon dioxide and water into sugars. c. ATP-producing reactions take place in the outer compartment. d. Mitochondria possess their own DNA. e. ATP producing reactions do not require oxygen.

Biology & Microbiology