Homework Help: 7th grade science Ms. Sue please only 5 questions

Posted by Delilah on Thursday, December 6, 2012 at 5:31pm.

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

7th grade science Ms. Sue please only 5 questions - Ms. Sue, Thursday, December 6, 2012 at 5:33pm
I do not know!!
7th grade science Ms. Sue please only 5 questions - Anonymous, Thursday, December 6, 2012 at 5:36pm
11, 12, 13, 14 are correct

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.
7th grade science Ms. Sue please only 5 questions - Delilah, Thursday, December 6, 2012 at 6:10pm
To "Anonymous": Actually, my answers to 15 and 16 were correct.
7th grade science Ms. Sue please only 5 questions - Anonymous, Thursday, December 6, 2012 at 6:14pm
I see my mistake in 15...pairs.

16...not so much. Regeneration doesn't include the ability to form a new organism after the loss of a body part.
7th grade science Ms. Sue please only 5 questions - peace, Monday, December 31, 2012 at 3:58pm
All of your questions are correct you are a very smart girl you don't need to ask for help do your studies and you will get it right if you get some wrong that is okay just study some more you will learn from your mistakes! I PROMISE

PEACE OUT!
7th grade science Ms. Sue please only 5 questions - peace, Monday, December 31, 2012 at 9:38pm
All of your anwsers are correct you are very SMART you dont need help on your homework yeh sometimes you make mistakes but that is how you learn in life you need to learn how t othings on your own to prepare for collage and what happens if someone cheats you and gives you all the wrong anwsers when your anwsers were all correct you could have had an A so come on trust in yourself

PEACE OUT!

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