Tuesday
September 30, 2014

Homework Help: plzz HELP me

Posted by peace on Thursday, January 3, 2013 at 1:53pm.

If it is Ms.Sue or WRITEACHER do not bother because i know you do not help if your going to help than help but if not than don't but i don't want to hear complaining about not helping now anyone please help


_______ , seen here in Figure 10-2, has ladder rungs of __________. (1 point)

DNA; nitrogen bases
RNA; sugar
DNA; phosphate
RNA; nitrogen bases

GT_SCI7A_04_15_Unit Test_Q2
2.
In the figure shown, which best goes in A and which best goes in B? (1 point)

made up of cells; sunlight
made up of cells; reproduces
water; sunlight
water; reproduces

3.
In the figure shown, which best goes in C to describe what all the parts add up to? (1 point)

a living organism
a nonliving thing
a plant that makes its own food
a source of food protein

4.
What is the first word of the two-word name of an organism? (1 point)

species
class
genus
phylum

5.
What category of organisms can mate and produce fertile offspring? (1 point)

species
family
class
genus

6.

The nucleus is the largest of the _____.
(1 point)

chloroplasts

mitochondria

organelles

ribosomes

sci07.04.12_prokaryotic_cell
7.
In the figure shown above, which term goes in C and what is its role? (1 point)

Cell membrane; regulate interactions with outside environment

Flagellum; move cell

Hereditary materials; reproduction

Nucleus; hold cell together

Sci07.04.12_eukaryotic_cell
8.
In the figure shown above, which term goes in A and what is its role? (1 point)

Golgi bodies; sort proteins
Cytoplasm; transport
Nucleus; control processes
Endoplasmic reticulum; make and move proteins

GT_SCI7A_04_15_Unit Test_Q9
9.
In the figure shown, which term completes step 1? (1 point)

bacteria
bacteriophages
potato
virus

10.
In the figure shown, which terms completes step 3 and step 5, respectively? (1 point)

infections; active
interferons; protective
latent viruses; hereditary
stimuli; prokaryotic

11.
Cold sores are caused by __________. (1 point)

active viruses becoming latent
HIV
latent viruses becoming active
unknown viruses

12.

Organic compounds always contain ____.
(1 point)

water

oxygen

nitrogen

carbon

13.

Which of these is NOT part of an atom?
(1 point)

element

proton

neutron

electron

14.

The passive transport of water through a membrane is ____.
(1 point)

osmosis

fermentation

equilibrium

active transport

GT_SCI7A_04_15_Unit Test_Q15
15.

Diagram F in Figure 9-1 is an example of _______.
(1 point)

diffusion
active transport
osmosis
equilibrium

16.
Diagram E in Figure 9-1 is an example of _______. (1 point)

diffusion
exocytosis

osmosis
equilibrium

17.
A plant wilts due to a process of ____. (1 point)

photosynthesis
active transport
osmosis
exocytosis

18.
Which of the following can cause mutations to occur in cells? (1 point)

by mistake during replication
environmental factors like X-rays
through damage to genes
all of the above

19.

The chromosomes in the nucleus of a cell contain a code known as ____.
(1 point)

RNA

mitosis

meiosis

DNA

20.

A cell that has two of every kind of chromosome is ____.
(1 point)

haploid

diploid

an egg

a sperm

21.

In ____ , a body part regrows and may form a new organism.
(1 point)

fission

budding

regeneration

sexual reproduction

22.
The process that releases energy without using oxygen is _____________. (1 point)

photosynthesis
respiration
osmosis
fermentation

Use the chart below for questions 23–24.

Table 1: Mice of North America

1. Tail hair


a. no tail hair; scales show plainly; house mouse, Mus musculus

b. hair on tail, go to 2

2. Ear size


a. ears small and neatly hidden in fur, go to 3

b. ears large and not hidden in fur, go to 4

3. Tail length


a. less than 25 mm; woodland vole, Microtus pinetorum

b. more than 25 mm; prairie vole, Microtus ochrogaster

4. Tail coloration


a. sharply dark above; deer mouse, Peromyscus maniculatus

b. slightly dark above; white-footed mouse, Peromyscus leucopus
23.
According to Table 1, what kind of organism has no tail hair? (1 point)

white-footed mouse
woodland vole
house mouse
prairie vole

24.
Which of the following characteristics is not associated with a deer mouse? (1 point)

large ears
sharply dark coloration on the tail
hair on tail
ears hidden in fur

Multiple Choice
25.
Even if you have never seen a deer mouse, using Table 1 above, you know they have _______ ears and a ________ tail. (1 point)

large; hairy
small; hairy
large; hairless
small; hairless

26.
A many-celled organism’s cells combine to form _____, which make up _____ systems, which perform certain functions to maintain the life of the organism. (1 point)

organelles; cellular
tissues; organ
cell membranes; tissue
organs; tissue

Short Answer

Note: Your teacher will grade your responses to questions 29–34 to ensure that you receive proper credit for your answers.

GT_SCI7A_04_15_Unit Test_Q23
27.
In Table 9-1, explain the way that ammonia, salt, and water are alike. (3 points)
28.
Why is respiration almost the opposite of photosynthesis? (3 points)
29.
What and how does the cell membrane regulate? What three factors influence this process? (5 points)
30.
Compare compounds and mixtures and explain what happens to the properties of the original parts of each. (5 points)

sci07.04.12_figure_10-1

Figure 10-1
31.
What step of mitosis is illustrated in Diagram A of Figure 10-1? Explain what occurs during that step and how you know if this cell is a plant or animal cell. (3 points)
32.
Explain how the process of diffusion can be absolutely critical to an athlete. (3 points)

plzz help i have to get this done now i am already behind i am begging you

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