Experts in _ study and predict the changes to the human population. One pattern of change to the population of a country is called the _, and involves drastic changes to both birth rates and death rates

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a ) moss sporophyteb) moss gametophyte bearing both male and female gametangiac) fern sporophyted) fern gametophyte bearing only antheridia

What's wrong with this ecological pyramid? (multiple choice)1. secondary consumers should be at the bottom of the pyramid2. the sun has an arrow leading to decomposers 3. primary consumers should come after the sun4. energy retained should increase from the bottom to the top5. the sun should be at the bottom of the pyramid

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.