Which of the following accurately describes a characteristic of fungi?

Suppose a rancher wants to raise cattle. Design a plan to help the rancher determine how much land she'll need based on the ener

BARSIC [14]

Answer:

The energy flow in the ecosystem decreases as it flows from one trophic level to the next trophic level. Only 10% of the energy will transfer to the next trophic level and the remaining energy is lost in the other metabolic process.

The energy flow in the case of the grassland can be shown by the trophic relationship of the organisms. The sun is the primary source of the energy that are absorbed by the plants through the photosynthesis process. The cattle acts as herbivores will consume the plants energy by directly feeding on them. The ranch should be protected from the other animals that feeds on cattle and they are known as carnivorves.

4 0

3 years ago

Which of the following statements is most correct regarding the intracellular chemical signals known as "second messengers"? Sel

Mila [183]

Answer:

Cyclic AMP and calcium may be second messengers.

Explanation:

these are signalling molecules that are located inside the cells,They are releases when cells are in contact with signals from an extracellular molecule. the extracellular molecules that cause the chemical reaction in an external environment in the second messenger are called first messenger.

the basic mechanisms of second messenger involve the binding of ligands to the cell membrane receptors( usually a trans membrane protein).causing conformational change in the receptor protein. The latter change affect the structural and functional activities of the receptors protein with a consequent production of second messenger,

Response of the cells to the first messenger my cause different form of cellular reactions; the cells may undergo depolarization with influx of out flux of ions, differentiate to specialized cells or migrate to another location.

Examples of first messenger are hormones and neurotransmitters, while calcium ions, cyclic GMP,AMP, diaclyglycerol are examples of first messengers.

Most first messengers are peptide hormones.Some may be streroid, However, the hydrophilic nature of the peptide hormone restrict their movement, at the cell membranes. Therefore most first messengers made of peptide are first converted to second messenger to bring about their signalling effects.The usually mark the beginning of cascade events by second messengers.

Second messengers are usually classified based on their polarity and molecular form this include the

hydrophobic molecules ;diacyglecerol,phosphatdylinotisols. These diffuse through the membrane into intramembrane space of cells cause signalling effects in the cell.

the hydrophiliic molecules are located in the cystol of cells. Example are Cylic AMP. GMP, Calcium,

N02, CO,H2S are polar molecules that easily diffuse into the cells to cause signalling effects, they are the third Classification of second messengers.

6 0

3 years ago

Read 2 more answers

In your own words, give a brief overview of the process of photosynthesis. Include where each phase place within a plant cell.

vodka [1.7K]

Answer:

Photosynthesis has two parts: the light-dependent reactions and the dark reactions (the Calvin cycle). Photosynthesis in a general sense, uses CO2 and water to create C6H12O6 (glucose) and oxygen. The light-dependent reactions use water to make oxygen, and a reduced energy carrier (NADPH) is also created. The Calvin cycle uses carbon dioxide and ATP to create G3P for glucose.

The light-dependent reactions occur on the membrane of the thylakoid and also involve shuttling electrons across different complexes (photosystem II and photosystem I), eventually causing ATP to be created with a proton gradient.

The light-independent reactions/Calvin cycle occur in the stroma of the chloroplast and also involve shuffling carbons around. Carbon dioxide is processed in three stages, and glucose is made from 6 CO2.

7 0

2 years ago

Which human activity has been banned in most areas because of its negative impact on the biosphere?

Ugo [173]

The human activity banned is restaurandts and most public areas is smoking

6 0

3 years ago

A recipe calls for 1 cup of sugar and 1/2 cup of flour.Zoe uses 1 cup of salt and 1/2 cup of flour.

Ivenika [448]

Answer:

Substitution

Explanation:

Given the information in the question substitution seems like the most appropriate answer. Zoe used 1 cup of slat rather than 1 cup of sugar, she substituted sugar for salt.

Insertion is wrong because Zoe did not add another ingredient, there is still only 2 ingredients.

Transition is wrong because, given the information, because the state(liquid or solid) of the ingredients has not changed. Zoe is still use dry ingredients per say.

And beneficial also seems to be wrong because we don't know if using salt instead was beneficial to the recipe or to Zoe.

Explanation:

4 0

2 years ago