A scientist was observing the fate of several cells during the development of a chicken. The cells all started out as the same type of cells that were undifferentiated and not specialized. What type of cells were these beginning cells?
A. Stem cells
B. Differentiated cells
C. Plant cells
D. Somatic cells
Answers: 3
Biology, 22.06.2019 08:00
Ineed to get this test done which of the following statements is correct in hour our immune system responds to a potential pathogen? a.) the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. b.) b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c.) the adapted immune system will call on the innate immune system to destroy the pathogen. d.) the t-cells in the adapted immune systems are the first to recognize the pathogen
Answers: 2
Biology, 22.06.2019 11:30
2. cheryl hears a new song on the radio every day during the week on her commute to work. surprisingly, when the song comes on at a party on saturday night, she knows most of the words without trying. describe the three ways that we use cognition to learn without reinforcement. which type of cognitive learning without reinforcement best explains how cheryl knew the song lyrics? explain your answer.
Answers: 1
Biology, 22.06.2019 18:40
Hey everybody i need with a biology question. all the gametes of isogamous organisms are genetically identical. true false
Answers: 1
A scientist was observing the fate of several cells during the development of a chicken. The cells a...
Law, 28.01.2021 18:10
Mathematics, 28.01.2021 18:10
Mathematics, 28.01.2021 18:10
Computers and Technology, 28.01.2021 18:10
Business, 28.01.2021 18:10
Chemistry, 28.01.2021 18:10
Mathematics, 28.01.2021 18:10
Health, 28.01.2021 18:10
Computers and Technology, 28.01.2021 18:10
English, 28.01.2021 18:10
Arts, 28.01.2021 18:10