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OLga [1]
3 years ago
8

A primary difference between cyanobacteria and purple and green phototrophic bacteria is A) Energy source. B) Cell wall type. C)

Electron donor for CO2 reduction. D) Cell type. E) Color.
Biology
1 answer:
eduard3 years ago
8 0

The right answer is C.

Sulfur purple bacteria (also called sulfooxidative phototrophic bacteria) are part of the family of photosynthetic bacteria with green sulfur bacteria and cyanobacteria. However, unlike cyanobacteria, purple bacteria such as sulfurous green bacteria do not produce oxygen during photosynthesis. In the sulfur oxidation-reduction process, these bacteria oxidize sulfide (H2SO3) to elemental sulfur (S).

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In a population, when the birthdate becomes higher than the death rate, the populations growth rate
Marrrta [24]

Answer:

if birth rate become higher than the death rate then the population will increase surely, cuz there are more people who add up to form a population but it's decline rate is lesser.

4 0
3 years ago
Suppose you observed that tina has a circular area without hair on the back of her scalp. what word would best describe this
vodka [1.7K]
The answer to this question would be: alopecia areata

In this question, there is a certain area of the scalp that didn't have any hair. The best term to this condition would be alopecia areata.
There are a few reasons why a spot of baldness can appear. It can be caused by stress that inducing autoimmune disease. Before diagnosing a patient with this you must exclude the possibility of fungal infection as it can destroy the hair and make it look bald.
8 0
3 years ago
Describe the four structural roles of the skeletal system.<br> The Human SKELETAL SYSTEM
makkiz [27]

Answer:

1. Support

2. Protection

3. Movement

4. Supply & Storage

Explanation:

1. Support :  It provides a framework to support the organs and tissues of the body.  

2. Protection:  It protects our internal organs.  The skull protects the brain; the thorax (sternum, ribs and spine) protects the heart, lungs and other viscera (organs within the thorax).

3. Movement:  It provides a framework for muscles to attach.  Then when the muscles contract they pull on the bones of the skeleton, which act like levers to create movement.

4. Supply & Storage:  The bones that make up the skeleton are a source of both red blood cells (which transport oxygen) and white blood cells (which fight infection), which are formed within the bone marrow.

4 0
3 years ago
Read 2 more answers
Atrazine is an herbicide that prevents plant growth by inhibiting photosynthesis. Atrazine works by binding to proteins in the e
Sauron [17]

It prevents the formation of ATP and NADPH, which are needed by the light-independent reactions to make sugars. Thus, the correct option is D.

The herbicide atrazine binds to the D1 protein and prevents plastoquinone from binding. By preventing plastoquinone from binding, the photosynthetic transport of electron is disrupted, putting the generation of ATP and NADPH in the chloroplast at risk.

 

<h3>What are herbicide?</h3>

Herbicides are chemicals that are used to control or manage unwanted vegetation. Herbicides are most commonly used in row-crop farming, where they are treated before or during planting to increase crop productivity while reducing other vegetation.

This results in the plant's inability to fix carbon dioxide and provide the nutrients it needs to survive. A halt in electron transmission causes oxidative stress and the generation of radicals, which leads to rapid cellular death.

For more information regarding plastoquinone , visit:

brainly.com/question/14142841

#SPJ1

3 0
2 years ago
En la fotofosforilación no cíclica, ¿cuál molécula se fosforila? ¿Por qué se
Juliette [100K]

Answer:

En la fotofosforilación acíclica, cuando los pigmentos (clorofila) y las moléculas de agua son alcanzados por fotones (partículas de luz), existe liberación de electrones.Se llama cíclica porque los electrones son re-utilizados por la clorofila. Es una forma alternativa de producción de ATP.

6 0
2 years ago
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