Biology, 18.11.2020 23:40 jaustin1961
Some birds, like the Ptarmigan, change the color of their feathers at different times of the year. In the summer months, the Ptarmigan has brown feathers. In the winter months, the Ptarmigan has white feathers. This color change allows the Ptarmigan to blend into its surroundings, no matter the season. What causes this color change to occur?
Answers: 3
Biology, 22.06.2019 00:00
Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels
Answers: 2
Biology, 22.06.2019 07:00
According to the cell theory, which describes cells? a. all organisms are composed of multiple cells. b. all cells have the same structure and function. c. cells are found in everything on earth. d. living organisms are not created spontaneously
Answers: 2
Biology, 22.06.2019 08:00
Choose the correct words to complete the sentences related to genetic screening. is a procedure that is used during pregnancy to detect genetic defects. is extracted from the uterus and used to identify genetic disorders?
Answers: 3
Some birds, like the Ptarmigan, change the color of their feathers at different times of the year. I...
English, 19.01.2021 18:40
Mathematics, 19.01.2021 18:40
Mathematics, 19.01.2021 18:40
Mathematics, 19.01.2021 18:40
English, 19.01.2021 18:40
Chemistry, 19.01.2021 18:40
English, 19.01.2021 18:40
History, 19.01.2021 18:40
Mathematics, 19.01.2021 18:40