biology pt. 2 Flashcards
1
Q
reflex
A
receptors - sensory neurone - relay neurone and synapse - motor neurone - effector
2
Q
meiosis
A
- gametes
- chromosomes double and line up down the middle
- DNA is swapped
- splits twice to give 4 different cells
3
Q
menstruation
A
FOLP
- FSH- sheds lining
- Oestrogen- replenish lining
- LH- ovulation
- Progesterone- maintains lining
4
Q
genes
A
alleles- different type of genes
XY- heterozygous
XX- homozygous
Y-dominant , y- recessive
phenotype ; physical
genotype ; genetic makeup
5
Q
glands
A
pituatry thirds pancreas adrenal ovaries testes
6
Q
ecology
A
DOMAIN ( bacteria, arcadea, eukaryotic ) K kingdom P phylum O order F family G genus S species