Biology, 04.03.2021 20:10 StitchBeach
Long necks in giraffes are an example of a trait that has been naturally selected over the evolutionary history of an organism. Which of the following best explains what must have happened for this selection to occur?
In each generation of giraffes, long-necked giraffes mated only with short-necked giraffes.
In each generation of giraffes, all the neck lengths were the same, and all the long-necked generations survived.
In each generation of giraffes, there was an abundance of resources available for each individual.
In each generation of giraffes, there was variation in neck lengths, and scarcity of resources meant that not all giraffes survived.
Answers: 1
Biology, 21.06.2019 19:40
In german cockroaches, curved wing (cv) is recessive to normal wing (cv+). bill, who is raising cockroaches in his dorm room, finds that the frequency of the gene for curved wings in his cockroach population is 0.6. in his friend joe’s apartment, the frequency of the gene for curved wings is 0.2. one day joe visits bill in his dorm room, and several cockroaches jump out of joe’s hair and join the population in bill’s room. bill estimates that, now, 10% of the cockroaches in his dorm room are individual roaches that jumped out of joe’s hair. what is the new frequency of curved wings among cockroaches in bill’s room? 0.69 0.4 0.5 0.31 0.20
Answers: 1
Biology, 22.06.2019 02:30
{answer found. it's (3 ) }which statement describes the cell cycle? (1)the cell cycle is a process in which one cell divides into four genetically different cells. (2)the cell cycle is a process in which one cell divides into two genetically different cells. (3)the cell cycle is a process in which one cell divides into two genetically identical cells. (4)the cell cycle is a process in which one cell divides into four genetically identical cells.
Answers: 1
Biology, 22.06.2019 03:00
The unique structure of the neuron is dedicated to the efficient and rapid transmission of neural signals. the relationship between neurons, the spinal cord, and the brain constitutes an elaborate communication system throughout the human body. all but one of the functions listed below are a result of this interaction.
Answers: 1
Biology, 22.06.2019 08:00
Pls in your opinion, what are the limiting factors that might affect the growth or diversity of our ecosystem? respond to this question in claim, evidence, reasoning format. 1. make your claim (i are the limiting factors that might affect the growth or diversity of our 2. follow the claim with 3 pieces of evidence. evidence may be taken from the reading, the videos, previous lessons, or googled answers. site sources, too. 3. use reasoning to explain why you chose your evidence.
Answers: 3
Long necks in giraffes are an example of a trait that has been naturally selected over the evolution...
Social Studies, 23.08.2019 21:30
History, 23.08.2019 21:30
Mathematics, 23.08.2019 21:30
History, 23.08.2019 21:30
English, 23.08.2019 21:30
Physics, 23.08.2019 21:30
History, 23.08.2019 21:30
English, 23.08.2019 21:30
Biology, 23.08.2019 21:30
Physics, 23.08.2019 21:30
Chemistry, 23.08.2019 21:30