Someone help quick!! which structures that distinguish a eukaryotic cell are part of the internal membrane system? A. nuclear membrane, endoplasmic reticulum, Golgi apparatus, and vesicle
B. chromatin, mitochondrion, nucleus, plasma membrane
C. nucleus, nuclear membrane, mitochondrion, endoplasmic reticulum
D. Golgi apparatus, chromatin, vesicle, plasma membrane

Which of these is a major trend in land plant evolution? a) the trend toward smaller size b) the trend toward a gametophyte-dominated life cycle c) the trend toward a sporophyte-dominated life cycle d) the trend toward larger gametophytes

Dr. kaylan is an ecologist who studies bird behavior. she sets up an experiment to test which type of food crows are most likely to eat when given a choice between walnuts, corn, and sunflower seeds. to perform her experiment, dr. kaylan places three food bins in an area frequented by cows. each bin contains one of the three food types. then, she measures how much of each food type is eaten every day for a month and summarizes the results of her experiment in the pie chart below. based on her results, dr. kaylan concludes that crows choose to eat corn more frequently than other food sources because it has a higher nutritional value. what is a reasonable alternate conclusion that can be drawn from dr. kaylan's data

Round peas are dominant to wrinkled. what would you cross a round pea with to determine if it were heterozygous or homozygous dominant? why? ?