1. light is the fastest-known entity in our universe.
true or false
2. there...
1. light is the fastest-known entity in our universe.
true or false
2. there are fewer than one billion stars in the galaxy.
true or false
3. hydrogen atoms do not repel each other within a star.
true or false
4. sky maps show celestial spheres, including constellations.
true or false
5. which of h following happens during the main-sequence stage of a star's life?
a) it cycles, appearing brighter and dimmer in turns.
b) it changes the color that it emits.
c) it increases its distance from the sun.
d) it grows continuously smaller and dimmer.
Answers: 2
Biology, 22.06.2019 13:10, tiwaribianca475
Which of the following is caused by reproductive isolation within a species? a. a decrease in gene flow b. an increase in genetic flow c. a decrease in genetic drift d. an increase in gene flow
Answers: 2
Biology, 22.06.2019 14:50, mihirkantighosh
An organism's reproductive strategy includes all of the following except a. the number of offspring produced. b. the amount of energy expended in producing offspring. c. the length of time parental care is given d. the number of alleles an organism passes on.
Answers: 3
Biology, 22.06.2019 17:00, malachitorres813
What are ways that ordinary people can to keep antibiotic resistance from getting worse?
Answers: 1
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