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Anuta_ua [19.1K]
3 years ago
5

Question 19 (2) need help asap - 20 points included it’s a quiz !

Biology
1 answer:
Leto [7]3 years ago
4 0

Answer:

Option B will be the answer.

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Tony spaces 5 plants apart equally along a line, with the first plant directly in front of a window and the last plant 30 feet a
love history [14]

Answer:

The correct answer would be - C. He is monitoring oxygen. The amount of gas released should be highest for the plant closest to the window and lowest for the plant farthest away from the window.

Explanation:

The release of the oxygen gas in the process of photosynthesis depends on the rate of photosynthesis which depends on various factors such as carbon dioxide, light, and water. In this experiment air (carbon dioxide), water is constant only factors that are changed is light, and an increase in the light energy increase the rate of photosynthesis, and a decrease in the intensity of light depend decreases the rate of photosynthesis.

Thus any change in the light would affect the release of the oxygen gas which is measured through this experiment and gas released should be lowest for the plant farthest away from the windowand highest for the plant closest to the window.

4 0
3 years ago
How an immune response stars after a macrophage attacks a pathogen
marishachu [46]
After the macrophage fails the Helper T Cell stimulates the B cells (create antibodies) if pathogen is extracellular and Cytotoxic T Cells (killer T cells, release perforin) if pathogen is intracellular. Once the pathogen is killed the B Cells create Memory B Cells and the Killer T Cells create memory T Cells. 
<span>Hope that's helpful.</span>
4 0
3 years ago
A biologist is writing a report about a group of rattlesnakes that all live in the state of Florida. All rattlesnakes in this gr
zhenek [66]

Answer:

C. a population in Florida

Explanation:

Population is described as a group of interbreeding organisms of the same species living together in an area. Here, all the rattlesnakes can breed with each other which makes them a population of rattlesnakes. The report dealt with all the attributes of a population like breeding rate and average size. There are more attributes which can be considered in a population like birth rate, mortality rate etc.

A community is a group of organisms of different species which interact with each other and the surrounding environment. A biome is a collection of ecosystems which reside in a big area with similar environmental factors.  

5 0
4 years ago
Antigen processing and presentation Antigen processing and presentation is a way for a cell to give information about its activi
Blizzard [7]

Answer:

is a way for a cell to give information about its activities.

Explanation:

Antigen-presenting cells (APC) such as dendritic cells, macrophages, and B cells are present where antigens are most likely to penetrate the body. Ingestion of antigens by these cells is followed by digestion of antigen into peptide fragments and their association with MHC molecules.

The antigen-MHC complex is then inserted into the plasma membrane of APCs. The antigens present on the surface of APCs are recognized by the T cells to trigger the adaptive immune response. Antigen processing and antigen presentation by antigen-presenting cells are required to inform the T cells of the immune system about the presence of antigen in the body and immune responses of APCs.

7 0
4 years ago
The reaction below demonstrates which characteristic of a base?<br><br> mc026-1.jpg
Ierofanga [76]
<span>CuSO4(aq)+2NaOH(aq)->Cu(OH)2(s)+Na2SO4
the ability of bases to release sodium ions into solution
the ability of bases to release hydrogen ions into solution
the ability of a base to react with carbonate or bicarbonate
the ability of a base to react with a soluble metal salt

In this reaction, the base (</span>2NaOH) reacts with a soluble salt of the metal copper (Cu).
Base molecules have a specific ability to accept a hydrogen ion, usually from an acid or an acidic salt, but In this reaction, the base (2NaOH) reacts with a soluble salt of the metal copper (Cu).
8 0
3 years ago
Read 2 more answers
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