Specialization occurs when competing species evolve different adaptations, and adaptation is the result of natural selection. Given these facts, natural selection results in: among the following options: - insects - root growth - Plants growth - Animal survival - animals - Plant reproduction - mammals - specialization
specialization

Trees have woody stems covered with bark, and on the outside is a protective skin of bark made mainly of cork. Given these facts, trees have woody stems covered with what among the following options: - heat energy - thin skin - protective skin - skinny cells - white skin - Chlorophyll - Organic compounds - looseness
protective skin

Q: Seed dispersal has a positive impact on a plant, and plants are the foundation of the ecosystem's food chain. Given these facts, what usually has a positive impact on an ecosystem's food chain among the following options: - Jellyfish - mussels - invasive seeds - genetic diversity - seed dispersal - colony collapse - peachleaf willow - blossom end rot
A: seed dispersal

Question: Flowers attract pollinators, and fruits encourage animals to disperse the seeds, and most plants are either insect pollinated or wind pollinated. Given these facts, most plants without attractive flowers use what to disperse pollen among the following options: - animals - wind - Energy - fronts - UV - LEDs - insects - bees
Answer: wind

*Question*
Population size influences the chances of a species surviving, and diversity within a species is essential for survival. Given these facts, population size influences the chances of what within a species among the following options: - relocation - organs - diversity - size - recovery - animals - Plants growth - color
**Answer**
diversity

*Question*
The looseness of soil has a positive impact on a plant 's roots' growth in that soil, and to improve soil, add several top-dressings of dirt or compost. Given these facts, what has a positive impact on a plant's roots' growth among the following options: - reducing acid rain - color of dirt - looseness of dirt or compost - basic building blocks of life - biological diversity - lead in the soil - Evaporation of water - a lack of soil
**Answer**
looseness of dirt or compost