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English 28 Public

Life science review

Study Slideshow

Heredity information is found in cell's

chromosomes

cytoplasm

membrane

chloroplasts

15

The arrows in a food chain represent :

water evaporation

carbon dioxide

energy flow

sunlight

15

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

deer

green plants

vulture

bacteria

15

What is the main source of oxygen for an ecosystem?

sunlight

snails

fish

green plants

15

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

reptiles and birds

amphibians and birds

fish and rodents

fish and primates

15

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

decomposers

carnivores

consumers

producers

15

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

ALL members adapt to environmental changes

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

members are equally able to survive if e't changes

members do not 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

cytoplasm

nucleus

cell membrane

15

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

over production

survival of the fittest

inheritance

use and disuse

15

Overpopulation of any species harms the environment due to

increased use of resources

decreased use of resources

production of extra resources

recycling of resources

15

This is an example of

photosynthesis

evoultion

diffusion

cellular respiration

15

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

cell-tissue-organ-system-organism

cell-system-tissue=organism-organ

cell-organism-tissue-system-organ

cell-organism-organ-system-tissue

15

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

digestion

photosynthesis

reproduction

respiration

15

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

mutation

fertilization

mitosis

meiosis

15

Most genetic material is found in the

vacuole

lysosome

membrane

nucleus

15