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Ivahew [28]
3 years ago
7

Help pls I’ll mark as brainliest

Biology
1 answer:
mrs_skeptik [129]3 years ago
3 0

Answer:

b

Explanation:

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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
Explain how goal of today’s classification system differs from earlier systems
gladu [14]

Classification systems previously were having very different goals than modern classification systems. If we look at old eras, scientists like Aristotle  and Theophrastus  tried to classify organisms on the basis of apparent characteristics, habitat and simple other traits.

Old classification systems had alot of errors and flaws. For example they classified fish and whale in one group because they lived in water, now we know fish is amphibian while whale is mammal.

So we can say that the goal o earlier classification system were just to make groups of organisms on the basis of External features.

Goal of modern classification system:

Modern classification approach was started by Linnaeus. It focuses more on biological delimitation and evolutionary histories than mere external characteristics. It organizes organisms in groups in such a way that grouping reflects their evolutionary relatedness. It is not just specie level but also focuses on sub-specie and population level classification.


Thus modern goal is better in many terms and is more reliable than old classification goals.


Hope it helps!

3 0
3 years ago
Can anyone please answer this ?
iris [78.8K]

Answer:

It should be B.

Explanation:

7 0
2 years ago
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What is simple diffusion
Kazeer [188]

When an ion or a molecule passes through a membrane without something facilitating, or encouraging that passage, such as a protein does. What drives it is the force of the diffusion itself instead.

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3 years ago
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How can algae be responsible for producing more oxygen than land plants produce?
ivann1987 [24]
But the many-celled algae, make their food by photosynthesis. Plants have complex, multi-cellular reproductive systems and might need wind, birds, or bugs for pollination. Algae can reproduce through tiny spores or even by replication or the growth of broken piec
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