Make ts and ls of fresh cucurbita stem tissue. stain with aniline blue. callose deposits surrounding sieve pores of sieve-tube members will stain blue. observe the numerous sieve areas on both lateral and end walls. look especially at the sieve plates and at the distribution of sieve pores and callose. does callose also surround pores in the lateral sieve areas? make a detailed drawing of one sieve plate. also, sketch several sieve-tuber members and companion cells as they appear in this freshly stained material.

*will mark brainliest to the first and correct answer less species diversity results in less a. oxygen b. food c. drinkable water d. all of the above

1. emigration the movement of people from one place to another 2. immigration a situation in which resources are being used up at a faster rate than they can be replenished 3. migration the leaving of one's homeland to settle in a new place 4. overpopulation the movement of people to a new country 5. sustainable development a situation in which the birth rate is not sufficient to replace the existing population 6. underpopulation the ability to meet current needs without reducing the ability to meet future needs 7. unsustainable development the increase in the population of a city 8. urbanization a situation in which the number of people exceeds the available natural resources in an area

Why is it incorrect to say that mitochondria function only as energy factories with cell