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English 28 Public

Life science review

Study Slideshow

Heredity information is found in cell's

chromosomes

membrane

cytoplasm

chloroplasts

15

The arrows in a food chain represent :

energy flow

carbon dioxide

water evaporation

sunlight

15

Most of the energy in a food web is supplied by the

bacteria

green plants

deer

vulture

15

What is the main source of oxygen for an ecosystem?

sunlight

green plants

fish

snails

15

The diagram shows the "family tree" of some animals. According to the diagram, which animal has the most recent common ancestor?

fish and primates

fish and rodents

reptiles and birds

amphibians and birds

15

Bacteria and fungi that break down dead plants and animals and return nutrients to the soil are called

consumers

carnivores

producers

decomposers

15

How does natural selection operate to cause change in a population?

members are equally able to survive if e't changes

members do not adapt to environmental changes

members differ so that only some survive when e't changes

ALL members adapt to environmental changes

15

In a certain species of army ant, the gene for long jaws (M) is dominant. If they wanted ants with only long jaws, which cross should they use?

mm x Mm

MM x mm

mm x mm

Mm x Mm

15

Which structure is found in plant cells but not in animal cells?

cell wall

cell membrane

nucleus

cytoplasm

15

Organisms with favorable traits reproduce more successfully than organism's with less favorable traits. This statement describes:

over production

inheritance

survival of the fittest

use and disuse

15

Overpopulation of any species harms the environment due to

decreased use of resources

recycling of resources

production of extra resources

increased use of resources

15

This is an example of

photosynthesis

diffusion

evoultion

cellular respiration

15

Which of the following is the correct order from simplest to most complex?

cell-organism-organ-system-tissue

cell-system-tissue=organism-organ

cell-tissue-organ-system-organism

cell-organism-tissue-system-organ

15

The diagram represents one life process that takes place in a leaf. Which life process is shown?

respiration

reproduction

digestion

photosynthesis

15

Cells identical to the parent cell are created by the process of

fertilization

meiosis

mitosis

mutation

15

Most genetic material is found in the

membrane

lysosome

nucleus

vacuole

15