Anne has been observing human embryos in different stages. she wants to study the gastrula phase. how will she find it? by looking for the presence of the neural tube and the notochord in the embryo by looking for the presence of the germ layers and the primitive gut in the embryo looking for the presence of the heart and lungs in the embryo

Classify the structures as homologous or analogous, depending on their structure and function.

Agroup of plant cells was exposed to radiation, which damaged the chloroplasts and caused them to lose function. if the mitochondria were unharmed, what would happen to the overall function of the plant cells? a. the cells would not be able to make food, but would be able to release energy from biomolecules. b. the cells would not be able to replicate dna, but would be able to break down waste. c. the cells would not be able to break down waste, but would be able to replicate dna. d. the cells would not be able to release energy from biomolecules, but would be able to make food.

Which set of terms best describes a community of miners who live out in the countryside of west virginia and use specialized geographical equipment to analyze the composition of rocks