Plants are known as autotrophs and make their own food. What
do we call organisms that make
their own food?
A
Primary producer
B
Tertiary consumer

28. how many linkage groups will be formed by homogametic organism with 28 chromosomes?

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?

Fredrick griffith made a scientific discovery in 1928