What is Classification? What is the name given to the current system of classifying living things?

3) Write the name of the seven levels of the hierarchical system

K -
P -
C -
O -
F -
G -
S -

4) What are the 5 kingdoms?

5)What is the difference between a producer and a consumer?

7)Explain what an invasive species is and give an example of one in an ecosystem.

8)What are the major threats to biodiversity?

9)What is pollution? Explain how pollution can negatively affect an ecosystem. Use an example from your own knowledge to support your answer.

10) What are some ways we can reduce our impact on biodiversity?

1) A classification is a division or category in a system which divides things into groups or types.

2)The science of classifying living things is called taxonomy.

3) kingdom

    phylum

    class 

    order      

    family

   genus

   species

4) Living things are divided into five kingdoms: animal, plant, fungi, protist and monera. 

5) -Producers are organisms that make their own food.

- Consumers are organisms that need to eat other organisms to obtain energy.

An invasive species can be any kind of living organism—an amphibian (like the cane toad), plant, insect, fish, fungus, bacteria, or even an organism's seeds or eggs—that is not native to an ecosystem and causes harm. They can harm the environment, the economy, or even human health.examples of invasive plant species include the kudzu vine, Andean pampas grass, English ivy, Japanese knotweed, and yellow starthistle. Animal examples include the New Zealand mud snail, feral pig, European rabbit, grey squirrel, domestic cat, carp, and ferret

8) the major threats to biodiversity are: habitat loss, overharvesting, and introduction of exotic species

9)Pollution is the introduction of harmful materials into the environment. These harmful materials are called pollutants. Pollutants damage the quality of air, water, and land.Air pollution can damage crops and trees in a variety of ways. Ground-level ozone can lead to reductions in agricultural crop and commercial forest yields, reduced growth and survivability of tree seedlings, and increased plant susceptibility to disease, pests and other environmental stresses (such as harsh weather).

10) -destruction, degradation and fragmentation of habitats.

-reduction of individual survival and reproductive rates through exploitation, pollution and introduction of alien species.

Explanation:

hope this helped

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

read more on -