Human Biology Definitions

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U T L H W F F Q M A C O D X H M K W C A N
C U M C W S L S N C A E S A T I Y S A N B
R M O V P W H Y P N R A R R H V X E C J C
A O U K W E G V O O D A O W T Q Y L H R L
N U S Y W E X J D I I A T P H V T E E E H
I R T D X M I R Y T O R P Y O X I C U Y F
A S E W R A A C D C V Y E M T X N T L J S
L U R T K L J W U E A K C L N C U I I V W
C P I T B I M W E L S N E N Q T M V A G F
A P A N M G Q L H E C M R W A W M E N U U
P R N J W N G N Y S U R O Y C U O A C J E
A E C E O A M D G L L J M L P A C D U J E
C S U R G N K O A A A S E X V V X V L D C
I S L E S T R X P R R B H I F U A A T T W
T O T F Y T N M E U C Q C F T G M N U K A
Y R U D T U X F B T E M F P V X I T R S K
Q G R D F M R O L A N M Q A E U L A E S P
C E E W R O K T O N T P A D T D C G A G E
M N I I B U I Y K C R H G R G J H E S N N
H E V R J R K I L A E H E F U J V S S T A
X P H M D P A T N H N K H J Q D N B L D H

Clues

  • A cancerous tumour that destroys the surrounding tissues. Cells from it may spread through the body via the blood or lymphatic system and cause secondary tumours eleswhere. (9, 6)
  • A gene that codes for a protein to stop cells dividing. (6, 10, 4)
  • A stable community of plants and animals that will remain unchanged unless the environment changes.It results from the process of succession. (6, 9)
  • A variation that gives one organism an advanatge over another organism, making it more likely that it will survive and reproduce. (9, 9)
  • Part of the medulla in the brain. Responsible for the regulation of the rate at which the heart beats. (14, 6)
  • Receptor cells that detect changes in blood pH. (14)
  • The process by which the best-adapted organisms in a population survive, reproduce and pass on their allelles to their offspring. (7, 9)
  • The techniques used for tool-making by Homo erectus.These tools had slimmer and straighter cutting edges (called bifaces) than the earlier Oldowan tools. (9, 7)
  • The techniques used for tool-making by Neanderthals. These were tools made from stone flakes, refined by using a softer hammer of bone,wood or stone. (10, 7)
  • The volume inside the skull. It can be estimated by pouring dry sand into the skull. This gives an estimate of the volume of brain that was inside the skull. (7, 8)

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