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seropon [69]
2 years ago
7

Which of the following is not a requirement of a practical fuel? It must contain a large amount of stored energy. B. It must occ

ur in abundance in nature or be easy to produce. C. It must be made up of elements that combine easily with oxygen. D. It must be in the solid state to be used.
Biology
2 answers:
HACTEHA [7]2 years ago
7 0
D is not a requirement as good fuel can be in liquid as well as gaseous in nature
Dominik [7]2 years ago
3 0

D. It must be in the solid state to be used, is not a requirement of practical Fuel. I took the test and it was 100 percent correct, good luck

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Summarize what happened to the fish in loberg lake include an explanation for why it happened.
STALIN [3.7K]
The Stickleback fishes regrew in their assigned and adapted niche

According to sources, the most probable answer to this query is that this shows how species, for example, fishes can still evolve. And that evolution is a tangible explanation for such event, 

Thank you for your question. Please don't hesitate to ask in Brainly your queries. 
3 0
1 year ago
The heterotroph hypothesis of the origin of life states that basic organic building blocks formed from inorganic molecules under
azamat

Answer:

1) abiotic synthesis of small organic molecules (monomers)

2) joining of monomers into polymers

3) packaging of these molecules into protobionts, droplets with membranes that maintained a distinct internal chemistry

4) origin of self-replicating molecules that eventually made inheritance possible

Explanation:

8 0
2 years ago
Match the following vocabulary words. 1.ciliary musclesA transparent liquid which is located between the cornea and iris. 2.opti
klio [65]

Answer:

1. Aqueous humor.

2. Ciliary muscles.

3. Cone.

4. Cornea.

5. Iris.

6. Optic nerve.

7. Photoreceptor.

8. Retina.

9. Rod.

10. Sclera.

11. Vitreous humor.

Explanation:

A sensory system can be defined as components of the central nervous system (CNS) which comprises of the brain, neural tissues or pathways and sensory neurons responsible for sensory functions, perception and processing sensory informations such as sound, light, heat, etc.

Basically, the central nervous system (CNS) interprete the neural signals that are generated from stimuli that are detected by the sensory system. The five (5) main sense organs in the sensory system are: skin, tongue, ears, nose and the eyes.

An eye can be defined as a specialized organ of sight with the capability to receive visual images that are subsequently transduced into neural signals and relayed to the brain for processing and interpretation. Some of the components of the human eye matched with their description are;

1. Aqueous humor: a transparent liquid which is located between the cornea and iris.

2. Ciliary muscles: muscles attached to the lens to change its shape.

3. Cone: a photoreceptor cell which functions best in bright light. It detects color.

4. Cornea: the transparent portion of the sclera at the front of the eye.

5. Iris: a special part of the choroid layer composed of colorful tissue.

6. Optic nerve: the nerve connecting the eye to the brain.

7. Photoreceptor: specialized cells located in the retina that receive light images.

8. Retina: a delicate light-sensitive membrane covering the inside of the eyeball.

9. Rod: a photoreceptor cell which is sensitive to dim light, but detects no color.

10. Sclera: a fibrous material surrounding the eye to give it shape.

11. Vitreous humor: a transparent jellylike substance filling the eyeball.

8 0
1 year ago
Read 2 more answers
A student use colored balls and sticks to make a model of the compound ammonia. Below is a picture of the model. What kind of mo
ahrayia [7]

Answer:  

i'm sure is B

Explanation:

8 0
2 years ago
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What is shown in the image below? A food web titled Chesapeake Bay Waterbird Food Web. It shows a very complex food web with man
ELEN [110]

Answer A)

As the diagram shows, there are five trophic levels which can be seen in this food web. The first trophic level is the organisms which are able to produce their own food by the process of photosynthesis. These include organisms like phytoplankton, S A V, vegetation. The second trophic level is that of the herbivores which includes  zooplankton, benthic invertebrates, herbivorous ducks, geese and mute swans. The third trophic level is the primary consumes which includes small planktivorous fish, bivalves. The fourth trophic level is the secondary consumers which includes gulls and terns, wading birds, large piscivorous fish, sea ducks, tundra swan. The fifth torphic level is that of the tertiary consumers which includes osprey, bald eagle.

Answer B)

Produces are organism which can make their own food.<em> An example of producers in this question is phytoplankton.</em>

Herbivores are organism which only feed on the primary producers.<em> An example of herbivores in the given question is  herbivorous ducks.</em>

Carnivores can be described as organisms which feed on other animals. <em>An example of carnivores in the given question is bald eagle.</em>

Answer C)

As energy moves up the trophic levels in a food chain or food web, it reduces abundantly. This is because most of the energy is lost at each trophic level in the form of heat. Only 10% of energy is recorded to be transferred from one trophic level to another. The rest is lost mainly in the form of heat to the environment.

Answer No D)

1) Carbon moves from the plants to the animals which eat them.

2) The carbon dioxide released into the atmosphere by animals is taken by the plants for the process of photosynthesis.

3) When animals die, the carbon compounds present in them gets decomposed in the soil. These carbon compounds are taken in by the plants from the soil as nutrients.

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5 0
1 year ago
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