1) put some form of lubrication like oil or water in front of the block so that it can slide easier.
I’m not sure about the second one sorry x
The result of meiosis is that the offspring will have no genetic variation, which means that it has less of chance for surviving changes to the environment. What happens to the chromosomes is that they duplicate and homologous chromosomes exchange genetic information (chromosomal crossover) during the first division, called meiosis I. The daughter cells divide again in meiosis II, splitting up sister chromatids to form haploid gametes.
Answer:
Flowers that are bright in color are meant to attract birds, bees and other insects in order to help the plants reproduce. Bright colors or dull colors are fixed in the genetics of a flower. ... When they land on another flower some of that pollen will spread .
Permafrost layer in Tundra is the layer of earth beneath the topsoil that remains frozen during the year and is usually only a few feet beneath the surface. It prevents trees from growing in the tundra because trees need to have deeper roots plus they cannot grow in the frozen ground.
Biome plants are : shrubs, sedges, mosses, lichens, grasses, and some flowering or herbaceous plants.
They would over run the lake and kill all of the other species.