11.
Which of these is selectively permeable?
(1 point)
door
window screen
wall
mirror
12.
The process that releases energy without using oxygen is ____.
(1 point)
photosynthesis
respiration
osmosis
fermentation
13.
The chromosomes in the nucleus of a cell contain a code known as ____.
(1 point)
RNA
mitosis
meiosis
DNA
14.
A cell that has two of every kind of chromosome is ____.
(1 point)
haploid
diploid
an egg
a sperm
15.
Each human skin cell has ____ pairs of chromosomes.
(1 point)
13
18
23
46
16.
In ____ a body part regrows and may form a new organism.
(1 point)
fission
budding
regeneration
sexual reproduction
My answers:
11. window screen
12. fermentation
13. DNA
14. diploid
15. 23
16. regeneration
6 answers
15 and 16 are incorrect.
Number 15: The normal human diploid cell (this includes skin cells) has 46 chromosomes. 23 from each parent.
Number 16: Budding is when a part is lost and a new organism may grow from the lost part. Regeneration is when the lost part regrows on the original organism not a new organism.
16...not so much. Regeneration doesn't include the ability to form a new organism after the loss of a body part.
PEACE OUT!
PEACE OUT!