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alina1380 [7]
2 years ago
6

OMG!!!! i need help asap please

Biology
2 answers:
Wewaii [24]2 years ago
7 0
A. and B. Hope this helped
Lemur [1.5K]2 years ago
5 0
A. and B., hope this was soon enough
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Fireflies make their own light. The light they give off looks green. The spectrum of their light is shown. Describe how you woul
umka2103 [35]

Explanation: Fireflies produce a chemical reaction inside their bodies that allows them to light up. This type of light production is called bioluminescence. The method by which fireflies produce light is perhaps the best known example of bioluminescence. When oxygen combines with calcium, adenosine triphosphate (ATP) and the chemical luciferin in the presence of luciferase, a bioluminescent enzyme, light is produced. Unlike a light bulb, which produces a lot of heat in addition to light, a firefly's light is "cold light" without a lot of energy being lost as heat. This is necessary because if a firefly's light-producing organ got as hot as a light bulb, the firefly would not survive the experience.

A firefly controls the beginning and end of the chemical reaction, and thus the start and stop of its light emission, by adding oxygen to the other chemicals needed to produce light. This happens in the insect's light organ. When oxygen is available, the light organ lights up, and when it is not available, the light goes out. Insects do not have lungs, but instead transport oxygen from outside the body to the interior cells within through a complex series of successively smaller tubes known as tracheoles. For a long time it was a mystery as to how some firefly species manage such a high flash rate, considering the relatively slow speed of the muscles that control oxygen transport. Researchers fairly recently learned that nitric oxide gas (the same gas that is produced by taking the d rug Viagra) plays a critical role in firefly flash control. In short, when the firefly light is ¿off," no nitric oxide is being produced. In this situation, oxygen that enters the light organ is bound to the surface of the cell's energy-producing organelles, called the Mitrochondria, and is thereby not available for transport further within the light organ. The presence of nitric oxide, which binds to the mitochondria, allows oxygen to flow into the light organ where it combines with the other chemicals needed to produce the bioluminescent reaction. Because nitric oxide breaks down very quickly, as soon as the chemical is no longer being produced, the oxygen molecules are again trapped by the mitochondria and are not available for the production of light.

Fireflies appear to light up for a variety of reasons. The larvae produce short glows and are primarily active at night, even though many species are subterranean or semi-aquatic. Fireflies produce defensive steroids in their bodies that make them unpalatable to predators. Larvae use their glows as warning displays to communicate their distastefulness. As adults, many fireflies have flash patterns unique to their species and use them to identify other members of their species as well as to discriminate between members of the opposite s  e  x. Several studies have shown that female fireflies choose mates depending upon specific male flash pattern characteristics. Higher male flash rates, as well as increased flash intensity, have been shown to be more attractive to females in two different firefly species.

5 0
1 year ago
Bones _____. Make blood cells are controlled by smooth muscles are part of the autonomic nervous system are connected to muscles
Alenkinab [10]

Answer:

make blood cells

Explanation:

<u>The red blood cells are made from the bone marrow of bones. </u>

<em>Smooth muscles form organs like the bladder and the stomach and allow them to change shape in order to perform their respective functions. Smooth muscles have nothing to do with bones.</em>

<em>The autonomic nervous system controls the functions of the body such as digestions, arousal, etc. It is a system of nerves, not bones.</em>

<em>Tendons connect muscles to bones, not synapses.</em>

Hence, the correct option is the bones make blood cells.

5 0
2 years ago
What are the spacial features of Granite igneous rock
mars1129 [50]
It is in your text book .
Check in your text book
3 0
3 years ago
Please describe the process of natural selection in your own words by using an example.
irina1246 [14]

Answer:

natural selection is animals slowly adapting to its environment

an example is giraffes, giraffes with longer necks will be able to consume more food than giraffes with shorter necks as they they can reach for the leaves on trees. over time the giraffes with shorter necks become extinct and giraffes with longer necks still remain.

3 0
2 years ago
What is shown in the image below?
Temka [501]

Answer:

There is no image shown

6 0
3 years ago
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