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Alex
3 years ago
8

Compare the shapes of the organisms that have cell walls with those that do not have cell walls.

Biology
1 answer:
inna [77]3 years ago
5 0
The best answer is A. The purpose of the cell wall is to hold the cell in a specific shape, usually rectangular or square. For example, a plant cell's wall keeps it rigid so that the plant can stand up. 

If the cell does not have a wall, it can easily change shape to accommodate for things coming in and out of the cell. 

Hope this helps!
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Pleaaase help , and show work if you can
charle [14.2K]

Answer:

1. 39 J; 2. 3.9 % usable; 3. 96.1 % unusable

Step-by-step explanation:

1. Available energy

Energy consumed              = 1000 J

Less waste         = - 177 J

Less respiration = <u>-784 J </u>

Total energy lost                = <u>-961 J </u>

Available energy                =   39 J

2. Percent of total energy usable

The chipmunk could use only 39 J of the original 1000 J.

% of energy usable = 39 J/1000 J × 100 % = 3.9 %

3. Percent of energy unusable

The chipmunk lost 961 J of the original 1000 J.

% of energy unusable = 961 J/1000 J × 100 % = 96.1 %

6 0
3 years ago
Some of the lipid groups appear similar, but changing a few components significantly alters their biological properties. identif
sergeinik [125]
Both glycerophospholipids and sphingolipid structures are asymmetrically distributed in the two layers of the phospholipid bilayer. Sphingolipids are membrane lipids that have a ceramide backbone while glycerophospholipid has glycerol present in its membrane lipids. Sphingolipids may or may not be present.
7 0
3 years ago
Read 2 more answers
Can someone help me?
alina1380 [7]
Well, I know 4 is A and 5 is D.
6 0
4 years ago
What is the largest natural population of organisms that can interbreed to produce fertile offspring? A) Class B) Family C) Genu
RUDIKE [14]
D speicies is the correct answer
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4 years ago
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Which comparisons of Trial A (no immunity) and
VashaNatasha [74]

Answer:

1.

3.

4.

Explanation:

In trial A, people have no immunity so there are more chances of infection and in trial C, only 50% of people have immunity so chances of infection are less, so infection will spread faster in trial A than trial C.

If compared, trial C will have less infected people than trial A because people in trial A has no immunity and people in trial C have 50% of immunity, so only fewer people will get infected even after six point of contact.

As percentage of immune people (trial C) is 50, so there are equal chances of immunity and non-immunity. there are three reasons of infection that include source, susceptible person and transmission. source and susceptible person can be the reason of infection in some non-immune people but the transmission reason can vary. s<em>o, there is probability that three nonimmune people lie under transmission reason and are not coming in contact with infected  people, medical equipment or environment, that causes infection and those three people are not getting infected.</em>

<em>Hence, the correct options are 1, 3 and 4.</em>

5 0
3 years ago
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