What is the “fluid-filled sac” that cushions the embryo?
A) Amnion B) umbilical C) uterine ca...
Biology, 13.03.2020 04:12 Nicoleebel2984
What is the “fluid-filled sac” that cushions the embryo?
A) Amnion B) umbilical C) uterine cavity
Answers: 1
Biology, 21.06.2019 20:50
Next pretest: evolution select the correct answer in a laboratory population of flies, the female flies are gray and the males are yellowish gray. biologists observed that all the male flies had an equal chance for reproduction, but the male flies with the brightest colors were more likely to successfully reproduce. what phenomenon could explain such a change? a sexual selection b. disruptive selection c. stabilizing selection d. directional selection
Answers: 1
Biology, 22.06.2019 00:00
You decide that the introduction should also discuss the extremophiles that are referred to as the archaea. these single-cell organisms are considered "extremophiles" due to their ability to survive and reproduce in environmental conditions that would be hostile for most living organisms. archaea species have been isolated from highly acidic sulfur springs, ocean floor thermal vents with temperatures that exceed boiling, and subarctic ice well below freezing. while still considered to be prokaryotic, the archaea have numerous differences that place them apart from the bacteria. choose the characteristics that separate the archaea from other prokaryotic cells. select all that apply. view available hint(s) select all that apply. archaea lack true peptidoglycan in their cell walls. the morphology of the cell is rigid and is geometric in shape, similar to a sphere or cylinder. the cytoplasmic membrane lipids of archaea have branched or ringform hydrocarbon chains. all currently identified and characterized archaea have been linked as the causative agent to an animal or human disease.
Answers: 2
Biology, 22.06.2019 01:00
Nucleic acid certain protein cell membranes certain carbohydrates
Answers: 3
Biology, 22.06.2019 02:50
The response is the basis for vaccination. primary secondary tertiary none of the above
Answers: 2
Mathematics, 18.01.2020 12:31
Social Studies, 18.01.2020 12:31
History, 18.01.2020 12:31
Mathematics, 18.01.2020 12:31
Mathematics, 18.01.2020 12:31
Biology, 18.01.2020 12:31
Mathematics, 18.01.2020 12:31
Mathematics, 18.01.2020 12:31
Biology, 18.01.2020 12:31
Mathematics, 18.01.2020 12:31
Computers and Technology, 18.01.2020 12:31
Mathematics, 18.01.2020 12:31
Chemistry, 18.01.2020 12:31