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dangina [55]
3 years ago
12

Match the statements with the correct element

Biology
1 answer:
Stells [14]3 years ago
3 0

Answer:

all

Explanation:

Biogeochemical cycles are pathways by which nutrients flow between the abiotic and abiotic compartments of the Earth. The abiotic portion of the Earth includes the lithosphere (the geological component of the Earth) and the hydrosphere (the Earth’s water).

Ecosystems rely on biogeochemical cycles. Many of the nutrients that living things depend on, such as carbon, nitrogen, and phosphorous are in constant circulation.

Essential elements are often stored in reservoirs, where they can be taken out of circulation for years. For example, coal is a reservoir for carbon.

Humans can affect biogeochemical cycles. Humans extract carbon and nitrogen from the geosphere and use them for energy and fertilizer. This has increased the amount of these elements in circulation, which has detrimental effects on ecosystems.

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Take a hypothetical bowl and add some water and some cooking oil and let the mixture settle. As you know, the mixture will separ
bazaltina [42]

Answer:

Phospholipid is the molecules that are amphipathic in nature means the molecule has both hydrophobic as well as hydrophilic regions. The phospholipids are the important constituent of the plasma membrane.

The water and oil gets separate when mix together. If the phospholipid is mixed with the oil and water solution than the oil part is mixed with the hydrophobic part and water will mix with the hydrophilic parts. They can form micelles together.

7 0
3 years ago
Which are examples of negative feedback? Select three options. a child whose thymus gland is building an immune system that gets
dimaraw [331]

Answer:

I believe #3, 4, & 5 is your answer.

Explanation:

-When someone's pancreas stops producing the hormone that lowers blood sugar because the  person hasn't eaten recently.

-When someone's pancreas hormone increases every time they eat, but decreases when they aren't eating.                                                                                

-When a person takes calcium supplements so a gland will stop secreting a hormone that pulls calcium from the bones.

7 0
3 years ago
Read 2 more answers
in an experiment, you mutate the retinoblastoma gene such that its gene product behaves as if hyperphosphorylated. the result wo
lakkis [162]

Answer:

1. Weaker

2. Continuous

Explanation:

A tumor suppressor gene codes for retinoblastoma protein (pRb). The retinoblastoma protein binds to transcription factor E2F when DNA damage is detected. The E2F bound to pRb can not stimulate expression of genes that code for proteins required during the process of DNA synthesis. The cell can not enter the S phase.

On the other hand, when the retinoblastoma protein is phosphorylated by cyclin E-CDK2, E2F transcription factor is free to stimulate the expression of genes required for DNA synthesis and the cell proceeds from G1 to S phase.  

When the mutated retinoblastoma gene code for a protein that serves as phosphorylated protein, it will not be able to bind strongly with E2F and there would be continuous expression of genes required for S phase.  

3 0
3 years ago
lawn fertilizer often contain phosphorus. Sometimes these fertilizers runoff into lakes. Once in a lake, the excess phosphorus m
kirill115 [55]

Answer:

The fertilizer will release oxygen and other elements. This will cause the algae to grow way faster.

Explanation:

This could be beneficial or harmful, an example of it being harmful is when it becomes too large. The algae will suck up all of the healthy elements from the other organisms.

6 0
3 years ago
Be able to compare/contrast humoral immunity with cellular immunity.
aksik [14]

Solution:

The difference between them are:


The humoral system of immunity is also called the antibody-mediated system because of its use of specific immune-system structures called antibodies. The first stage in the humoral pathway of immunity is the ingestion (phagocytosis) of foreign matter by special blood cells called macrophages. The macrophages digest the infectious agent and then display some of its components on their surfaces. Cells called helper-T cells recognize this presentation, activate their immune response, and multiply rapidly. While,


The cell-mediated immune response involves cytotoxic T-cells, or killer-T cells. Body cells that have been infected by foreign matter often present components of that material on their surfaces. Killer-T cells recognize these displays and respond by ingesting or otherwise destroying the infected cell. Killer-T cells are also important in the body's defenses against parasites, fungi, protozoans, and other larger cells that might have found their way into the body. The killer-T cells recognize these large invaders by their foreign proteins and then destroy them.  

This is the required answer.

6 0
3 years ago
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