1) Life on earth began how many millions of year ago? a) 2500 b) 3500 c) 4500 2) Tye first living things developed from? a) thunder and lightning b) chemicals from meteors c) simple chemicals 3) These simple chemicals came from? a) outer space b) the sea c) volcanoes 4) All liiving things have some things the same a) hair b) chlorophyll c) cells d) eyes 5) The code for life found in all cells is also called? a) genetic code b) cytoplasm c) nucleus d) mitochondria 6) We know we all originated from a common ancestor because of? a) History books b) age of rocks c) fossils d) DNA 7) Evolution happens a) slowly b) quickly c) very quickly 8) evolution is? a) the reason organisims stay the same b) the reason organisms change over time c) none of the above 9) Natural selection is part of? a) reproduction b) evolution c) fossilisation 10) In natural selection Animals compete for? a) food b) mates c) sunlight 11) Genes get passed on from generation if the organisms reproducing? a) Are better adapted to survive b) Regardless, all organisms will reproduce anyway c) Only if there is genetic variation 12) Mutation is? a) a change in the nucleus of a cell b) a change in the size of a cell c) a change in the life of an organism d) a change in a gene 13) Mutations alter? a) the proteins a cell makes b) the devlopment of an organism c) the typs of cancer that an organism develops 14) A new species can be produced through? a) Mutations b) environmental changes c) natural selection d) all of the above e) none of the above 15) Humans are part of the following group of organisms a) arachnid b) homonid 16) Homo sapiens is the scientific name for? a) apes b) humans c) monkeys 17) There is acorrelation in homonids between? a) brain size and height b) brain size and foot size c) brain size and intelligence d) brain size and walking upright 18) Fossils show? a) Walking upright came before bigger brains b) Walking upright came after bigger brain size 19) To become extinct means? a) no reproduction some years b) a species dies out completely c) none of the above d) bothe of the above 20) Extinction can be caused by? a) increased competiotion b) new predators c) changes in environment d) new diseases 21) Mass extinction happens when? a) Large heavy animals die out b) every living organism dies out c) many species die out because they can't adapt 22) Human activity has lead to? a) less biodiversity b) more biodiversity 23) Human activity has lead to? a) less competition for resources b) more competition for resources 24) Food chains and food webs show? a) what food you can eat b) what diet animals have c) how animal diets and habitats have 25) Nerve impulses are? a) electrical b) rapid c) short lived d) none of the above e) all of the above 26) Hormone signals are? a) chemical b) slow c) long lasting d) none of the above e) all of the above 27) Homeostasis is where the body? a) constantly changes its internal environment b) constantly keeps its internal environment the same c) none of these two 28) The nervous system has? a) sensors only b) receptors only c) both sensors and receptors d) neither sensors noe receptors 29) The central nervous system has? a) Spinal cord b) brain c) neurones d) none of these

Revision quiz B3

by Anonymous
Embed

Leaderboard

Visual style

Options

Switch template

Continue editing: ?