41. a student studying the biosphere makes a list of biotic and abiotic characteristics of various biomes. which characteristic is considered a biotic factor? a. dry, sandy, nutrient-poor soil in a desert b. less than 25 cm of precipitation in a desert c. evergreen trees present in a coniferous forest d. temperature range of -40 to 40°c in a grassland

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.

When does a spring tide occur? question 9 options: they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur twice a year in the spring and fall. they occur on the date of the vernal equinox each year, no matter what stage the moon is in. this is why they are called spring tides. they occur when the sun, moon, and earth are at 45-degree angles from each other. this happens once every spring. they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur all year long.

All other things being equal the size of a population will decrease if