Explain how autotrophs versus heterotrophs obtain the energy that they need for life

Answers

Answer 1

Answer: autotrophs make their own food in order to obtain energy where as heterotrophs obtain their energy from other organism they can't make their own food

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The factor that may change in response to the independent variable is called the?

Keystone SpeciesA keystone species is one whose presence contributes to the diversity of life and whose
extinction would lead to the extinction of other forms of life. A keystone species helps to
support the ecosystem of which it is a part.
An example of what can happen when a keystone species is removed occurred when fur
hunters eliminated sea otters from some Pacific Ocean kelp beds. Otters eat sea urchins,
which eat kelp. With its major predator gone, sea urchin populations exploded and
consumed most of the kelp. Fish, snails, and other animals associated with the kelp beds
disappeared.
The grizzly bear is another example of a keystone species. Grizzlies transfer nutrients
from the ocean ecosystem to the forest ecosystem. The first stage of this transfer is
performed by salmon that swim up rivers, sometimes for hundreds of miles. Salmon are rich
in nitrogen, sulfur, carbon, and phosphorus. The bears capture the salmon and carry them
onto dry land, scattering nutrient-rich feces (wastes) and partially eaten salmon carcasses.
It has been estimated that the bears leave up to half of the salmon they harvest on the
forest floor.

Which sequence best represents the feeding relationships in a kelp ecosystem that has not been disturbed
by humans?
(1) sea urchins → kelp → fish (3) kelp → sea otters → sea urchins
(2) kelp → sea urchins → sea otters (4) sea urchins → snails → kelp

Answers

Kelp --> sea urchins ---> sea otters best represents the feeding relationships in a kelp ecosystem that has not been disturbedby humans.

Final answer:

The correct sequence displaying the feeding relationships in an undisturbed kelp ecosystem is: kelp → sea urchins → sea otters. Kelp serves as a food source for sea urchins, which in turn are consumed by sea otters.

Explanation:

The sequence that best represents the feeding relationships in a kelp ecosystem that has not been disturbed by humans is (2) kelp → sea urchins → sea otters. In an undisturbed ecosystem, the kelp, being a producer, forms the base of the food chain. Secondly, the sea urchins, as primary consumers, feed directly on the kelp. And finally, the sea otters are secondary consumers that prey on the sea urchins, maintaining the balance in the ecosystem.

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Do you think cloning of pets is acceptable? explain

Answers

Cloning does not harm the animal nor effect the surrounding. Except the clone itself. Plus its a new out look of new development to human as to help replicate organs or tissues to save lives or increase longer living.

The model stating that organic molecules present in ancient seas lead to the formation of life’s building blocks was the.... 1.bubble model. 2.primordial soup model. 3.spontaneous origin model. 4.none of the above

Answers

The answer is (2.) primordial soup model.

1. Hot coffee is stirred with a spoon, the spoon gets hot due to _______________. 2. A chair is placed several feet from a fire in a fireplace. The fireplace has a glass screen. The side of the chair facing the fireplace gets warm because of_______________. 3. A certain type of decorative lamp contains colored liquids. These liquids form globs that break off and rise to the top of the liquid. The globs rise due to _______________.

Answers

Answer:

1) Conduction.

Heat transfers to a spoon as the heat energy is passed from the coffee to the spoon through conduction.

2) Radiation

The heat on the glass surface gets radiated into the chair which causes the chair to warm up.

3) Convection

The globs are hot and less dense, which rises to the top whereas the cold globs are more dense which causes it to settle down.

Final answer:

1. Hot coffee warms the spoon through conduction,

2. a chair warms through radiation from the fireplace,

3. decorative lamp globs rise through convection.

Explanation:

1. Hot coffee is stirred with a spoon, the spoon gets hot due to conduction.

2. A chair is placed several feet from a fire in a fireplace. The fireplace has a glass screen. The side of the chair facing the fireplace gets warm because of radiation.

3. A certain type of decorative lamp contains colored liquids. These liquids form globs that break off and rise to the top of the liquid. The globs rise due to convection.

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Through which conversion is energy released?a) ADP to ATP
b) ATP to ADP
c) NADP+ to NADPH
d) CO2 and H2O to C6H12O6 and O2

Answers

Answer: B) ATP to ADP

This reaction is termed as ATP hydrolysis.

ATP ( adenosine triphosphate) conversion to ADP ( adenosine diphosphate) is an energy producing reaction ( exothermic reaction). ATP contains high energy bonds called phosphoanhydride bonds. Thus, when this bond is broken down, ATP is converted to ADP and Pi ( inorganic phosphate) and releases large amount of energy.

The answer is b) ATP to ADP. This is a method for our body to provide energy for reactions. While other three forms are energy absorbing which can conserve energy for our body.

Which lists metric units, in order, from smallest to largest?kilogram, hectogram, decagram
decagram, decigram, centigram
milligram, centigram, decigram
decagram, hectogram, milligram

Answers

Answer:

milligrams, centigrams, decigrams, kilograms, decagram,hectogram

Explanation:

Answer:

milligram, centigram, decigram

Explanation:

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Which statements about the regulation of transcription initiation in these genes are true?1) The fantasin gene will be transcribed at a high level when activators specific for control elements A, B, and C are present in the cell. 2) Both the fantasin gene and the imaginin gene will be transcribed at high levels whenever general transcription factors are present in the cell. 3) The imaginin gene will be transcribed at a high level when repressors specific for the imaginin gene are present in the cell. 4)Control elements C, D, and E are distal control elements for the imaginin gene. 5)The fantasin gene and the imaginin gene have identical enhancers. 6)Control elements A, B, and C are proximal control elements for the fantasin gene 7)Both the fantasin gene and the imaginin gene will be transcribed at high levels when activators specific for control elements A, B, C, D, and E are present in the cell.