Which data table describes the sun?
a.
composition mostly frozen nitrogen
mass 258.9 × 1018 kg
b.
composition mostly hydrogen and helium gas
mass 1.989 × 1030 kg
c.
composition fine dust, metals and minerals, and volcanic rock
mass 6.4 × 1023 kg
d.
composition central iron core surrounded by rock, similar to earth
mass 4.9 × 1024 kg

Select all the correct answers. lactobacillus is a bacteria that live inside humans. these bacteria live on the nutrients from our bodies. they to keep our gut clean and healthy. s. typhi is a bacteria that enter our bodies through contaminated food. this bacteria causes infections in the body. based on this information, which two statements about the association between these bacteria and humans are true? a. lactobacillus shares a parasitic relationship with humans. b. s .typhi shares a parasitic relationship with humans. c. both lactobacillus and s. typhi share a parasitic relationship with humans. d. both lactobacillus and s. typhi share a mutualistic relationship with humans. e. lactobacillus shares a mutualistic relationship with humans, and s. typhi shares a parasitic relationship multiply chrse

Hedgerows have created a new ecosystem within britain’s a. farms b. cities c. forests d. industrial areas

Which situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box