Biology, 13.07.2019 18:30 allegra0103
The first earthling to orbit our planet was just two years old. her name was laika, and she was picked up in the streets of moscow in 1957, just a few days before the launch of sputnik 2. laika was a terrier mutt, and her flight aboard sputnik 2 paved the way for space exploration during a time when scientists weren’t sure if spaceflight was safe for living organisms. since then, humans have orbited earth and even walked on the moon. currently nasa is planning a mission to send astronauts to a nearby asteroid, and commercial companies are planning civilian missions to the moon. unmanned space probes have traveled past neptune and pluto to the outer edge of our solar system and entered interstellar space. space travel has come a long way since laika, but there are still many celestial bodies waiting to be explored. what do you think will be the biggest space mission of the twenty-first century? what challenges do you anticipate that the humans or space probes will experience on this journey? what specific accommodations or technological advancements will be needed to make the mission successful?
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Biology, 22.06.2019 10:00
Which process in respiration happens first? a)pyruvate processing b)electron transport chain c)krebs cycle d)glycolysis
Answers: 1
Biology, 22.06.2019 10:30
Which label correctly identifies what x represents in the concept map?
Answers: 2
Biology, 22.06.2019 11:00
Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.
Answers: 1
The first earthling to orbit our planet was just two years old. her name was laika, and she was pick...
Mathematics, 08.08.2019 03:20
Mathematics, 08.08.2019 03:20