Science Reproductive Basic Concepts

Question 1

MR H GREEN

Answer 1

metabolism, reproduction, homeostasis, growth and development, respond to stimilis, evolutionary adaptations, excrusion of waste, nutrition

Question 2

why is reproduction necessary for living things

Answer 2

allows genetic material to be passed down to offspring which ensures survival of a species

Question 3

metabolism

Answer 3

all the chemical reactions that take place in living things , ex body breaking down food into energy

Question 4

reproduction

Answer 4

all living things reproduce, ex animals having babies plants making seeds

Question 5

homeostasis

Answer 5

maintaining a constant internal environment despite changes in the external environment, ex sweating to cool down shivering to warm up

Question 6

growth and development

Answer 6

getting bigger and going thru life stages, ex tadpole growing into a frog

Question 7

respond to stimuli

Answer 7

reacting to changes in the environment, ex moving your hand away from something hot

Question 8

evolutionary adaptations

Answer 8

Traits that help a species survive and are passed down over generations, ex Polar bears have thick fur for cold climates

Question 9

excursion of waste

Answer 9

Getting rid of waste products from metabolism, ex Humans urinate

Question 10

nutrition

Answer 10

Getting or making food/nutrients, ex eating food

Question 11

animal male reproduction

Answer 11

testis, produces sperm

Question 12

animal female reproduction

Answer 12

ovaries, produces eggs

Question 13

human diploid haploid

Answer 13

haploid 23, diploid 46

Question 14

why do diploid numbers have to be even

Answer 14

each chromosone has a matching homologous pair (come from each parent) if it was odd meiosis would not be possible

Question 15

why is meiosis necessary

Answer 15

it reduces the chromosone number in half which ensures genetic variation through recombination

Question 16

3 characteristics of female gametes

Answer 16

-large
-cannot move on its own
-contains nutrients

Question 17

3 charqacteristics of male gametes

Answer 17

-small
-can move on its own
-produced in large numbers