CP4 Review 8th Science

Question 1

After a volcanic eruption, lava cools forming rock.Then it's broken down to form soil for plant growth,what is observed?

Accepted Answer

primary succession

Question 2

Cell theory is used to describe characteristics of living things. Which of the following is NOT part of the Cell

Accepted Answer

All cells have the ability to move.

Question 3

The climate of a tropical savanna biomes has a long dry season, how do animals respond to the dry season to survive?

Accepted Answer

Animals can go into a period of hibernation, Animals become less active, reduce activity during the day

Question 4

In Texas,some areas have limestone soils;schrublands transform very slowly. What prevents the progression of this ecosys

Accepted Answer

the ecosystem has low rainfall and periodic fires.

Question 5

Which of these statements are included as part of the cell theory?Select TWO correct answers.

Accepted Answer

Cells are the basic units of structure and function in all organisms., Cells only come from preexisting cells.

Question 6

Based on the food web, which types of organisms would the grasshopper mouse most likely compete with for food sources?

Accepted Answer

herbivores and carnivores

Question 7

A food web is shown. What is the total number of organisms that eat primary consumers?

Accepted Answer

5

Question 8

What would be the best way to increase the sustainability of this ecosystem?

Accepted Answer

Increase the diversity of plant species

Question 9

Why would increasing the diversity of the grasses be the best way to increase the sustainability of this ecosystem?

Accepted Answer

It raises the biodiversity of an ecosystem making it sustainable

Question 10

Which of the organelles in the table are paired correctly with its function?

Accepted Answer

chloroplast, Nucleus

Question 11

The energy pyramid shows many organisms. Which statements accurately describe the flow of energy?

Accepted Answer

Tertiary consumers don't receive all of the energy from the levels below

Question 12

What are some effects that a drought can have on a grassland ecosystem?

Accepted Answer

Plant roots no longer hold causing soil erosion and the risk of wildfires

Question 13

A hurricane in Texas destroys almost fifty acres of forest, in years after the hurricane what will be observed?

Accepted Answer

secondary succession

Question 14

Plant and animal cells have many similarities and differences.What characteristics do they share to make them eukaryotic

Accepted Answer

They both contain nuclei in their cells.

Question 15

Which of these occurs in sexual reproduction but not in asexual reproduction?

Accepted Answer

The genetic information comes from the parents but is not identical.

Question 16

An ecosystem that has great biological diversity decreases

Accepted Answer

competition between different species in the ecosystem

Question 17

A multicellular organism, has a nucleus and a cell wall as well as the ability to conduct photosynthesis is _________

Accepted Answer

Eukaryotic

Question 18

Select the statements that accurately describe heredity and inherited traits.

Accepted Answer

Inherited traits are determined by the genetic material in the chromosomes.

Question 19

Which of the following things is common to all living organisms?

Accepted Answer

They all are composed of cells.

Question 20

Which of the following are accurate statements about reproduction?

Accepted Answer

Offspring of sexual reproduction have set of traits from 2 parents, Offspring of asexual reproduction are identical to the parent

Questions 20