Which adaptation allowed gymnosperm plants to out-compete spore-bearing plants? seeds roots stems leaves

If bacteria are much too small to see, what is one reason why can we see colonies in the petri dishes that have plenty of food to eat after only a few days?

Which of the following would be a body response when stepping outside without a coat on a snowy day? a. senaceous glands. secrete more senum b. more liquid is transported by the body to the skin fir insulation c. blood vessels in the skin narrow and contract d. blood vessels in the skin expand

If an organ has six haploid chromosomes, how many chromosomes are present. 6 12