Biology, 29.07.2019 14:30 jesuslovesusall3
Sponges, members of the porifera, might be the simplest multicellular animals on earth. they do not have any tissues, organs, or organ systems. in order for sponges to have evolved, what must have happened first? a) the organization of cells into groups b) symbiotic relationships among various cells c) the evolution of cells with nuclei and organelles d) the development of the cell wall as a protective mechanism
Answers: 2
Biology, 21.06.2019 20:00
After reading the paragraph below, answer the questions that follow. researchers have created a robot that has a very thin leg that is moved by cardiac (heart) cells contracting in unison. the robot, made of a polymer similar to that used in making contact lenses, is bathed in heart cells with supporting cells, which then attach to the robot and provide movement as they contract. all of the cardiac cells working together can cause the robot leg to move in a way that individual cells could not. this is an example of a. emergent properties of cells. b. energy flow through an ecosystem. c. adaptation. d. internal environment regulation.
Answers: 3
Biology, 22.06.2019 04:00
Cassandra made a venn diagram to compare and contrast the two stages of cellular respiration. which belongs in the area marked x? energy is released. oxygen is used up. glucose is broken down. carbon dioxide is used up.
Answers: 1
Biology, 22.06.2019 20:30
Three applications for admission to a local university are checked, and it is determined whether each applicant is male or female. the number of sample points in this experiment is
Answers: 1
Sponges, members of the porifera, might be the simplest multicellular animals on earth. they do not...
History, 30.12.2020 22:50
Social Studies, 30.12.2020 22:50
Social Studies, 30.12.2020 22:50
Mathematics, 30.12.2020 22:50
Mathematics, 30.12.2020 22:50
Physics, 30.12.2020 22:50
English, 30.12.2020 22:50
English, 30.12.2020 22:50
Mathematics, 30.12.2020 22:50
Business, 30.12.2020 22:50
Mathematics, 30.12.2020 22:50
Mathematics, 30.12.2020 22:50
Computers and Technology, 30.12.2020 22:50
History, 30.12.2020 22:50