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nasty-shy [4]
4 years ago
8

Which statement describes all primary producers?

Biology
2 answers:
a_sh-v [17]4 years ago
5 0

A. All harness energy of sunlight through the process of photosynthesis

Over [174]4 years ago
5 0

Answer:

The correct answer is option B. All take in energy to assemble energy-rich compounds.

Explanation:

One characteristic that distinguish primary producers from other organisms is that  all take in energy to assemble energy-rich compounds. Primary producers role in the ecosystem is to produce organic compounds from abiotic sources that they use as energy. These abiotic sources include the sunlight ( in the case of phototroph and photoautotroph), and carbon dioxide (chemolithotrophs).

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with a population growth rate of 5% how long will it take for a population to double from 20,000 to 40,000 people?
Alik [6]

Answer:

15 years

Explanation:

Compound growth

Equation:

20000 x 1.05 to the power of how ever many years needed

20000 x 1.05 to the power of 15 takes it just over, with 41578 people alongside decimals.

Therefore, it is 15 years.

7 0
2 years ago
Read 2 more answers
While hiking in the mountains of Alaska, Pete encountered a giant grizzly bear. He immediately felt his heart rate increase, his
Andreyy89

Answer:

Epinephrine

Explanation:

Epinephrine, which is also referred to as adrenaline, is the active sympathetic hormone that is secreted by the medulla of the adrenal glands into the bloodstream to initiate the body’s fight-or-flight response to stress or threat, causing increased blood pressure, sugar metabolism, heart rate, breathe rate, muscle strength as well as sweat. Pete's sighting of a bear as a threat stimulates the sympathetic nervous system to initiate the secretion of epinephrine which brings about the fight-or-flight response of the body to increase alertness of the body.

6 0
3 years ago
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In 1980, a long dormant volcano, Mount St. Helens in Washington state, erupted violently. The eruption wiped out the forested la
xxMikexx [17]

Answer:

New vegetation and animals came to this place when the environment is suitable.

Explanation:

The ash and rock strewn surface began to undergo primary succession after few month when the soil is cool down because the soil has nutritive medium that helps the vegetation to grow on that land. In the primary succession, the new vegetation grows which is well suited to that environmental condition and uses the nutrients present in that soil for its growth and development. Many new organisms also came to this new landscape when the environment is suitable.

6 0
3 years ago
Which object would have a larger gravitational force acting upon it
fiasKO [112]

Answer

Hi,

An object with the largest size will have a large gravitational force acting on it. Explanation

The gravitation force increases with increase in size of an object. An object that has twice as much mass will exert two times as much gravitational pull on other objects. An object with greater mass attracts the earth more strongly that the other one with smaller mass. On the earth’s space, the more massive objects will exert stronger gravitational forces.

Best wishes!

6 0
4 years ago
Annelida • how is their digestive system more advanced? what are the 5 compartments and their functions?
maria [59]
Stomach,liver,small intestines and large intestines
6 0
3 years ago
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