A scientist observes an object approximately 11 km in length with an elliptical orbit around the Sun. The object is made of dust, ice, and rocky materials and passes Earth every 75 years.

Asnail, elodea (aquatic plant), or both were added to the tubes and they were stoppered. tubes were placed under a grow light for 24 hours and the results recorded. the test tubes were then covered for 24 hours to produce a dark environment and the results recorded. which statement best explains the change in test tube d from the light setup to the dark setup.

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.