Unit one bio 9th grade

what is a decomposer?

organism that breaks down dead plants and animals

what is a consumer?

organism that can’t make its own or take from others

what is a producer

Organism that makes its own food usually using sunlight through photosynthesis

what are some factors that have led to extinction?

Loss of habitat climate change over hunting and disease

has biodiversity increased or decreased overtime

Biodiversity has decreased overtime because of climate change and over hunting

if a population is growing, which of the following would be higher deaths or births

births

what are some factors that may cause a population to shrink?

not enough food or water

what are some factors that may cause a population to grow

more food and water available

explain the wildebeest migration pattern

dry season: they leave areas with no grass and water

wet season: find fresh grass, and water

what is the purpose of a food web?

shows how energy and food move through an ecosystem

where do wildebeest spend most of their time during the year?

grasslands

what is the main limiting factor that prevented the wildebeest from growing in population size?

food and water availability

what is a limiting factor give examples

Anything that stops a population from growing too big

why was Serengeti national Park created?

to protect wildlife and their habitats

what is a 30 X 30 initiative? How can we help achieve this?

Global plan to protect 30% of lens and ocean by 2030

what are the producers in the food web? Where do they get their energy from?

The producers mainly plants they use photosynthesis and get their energy from the sun

what is a road proposal? What is an interest holder? Are you able to explain different priorities of interest holders

road proposal: plan for how to use land/water and etc.

interest holder: ‏ anyone affected by this

what are some interactions ( animal plants) that are affected by the wildebeest?

plants: eating grass and traveling

animals: predators and other herbivores

why is it important to protect keystone species?

keeps ecosystem balanced

how does the wildebeest act as a keystone spec?

food for predators and helps plants grow

what is a keystone species?

Species that has a big effect on its ecosystem