Approximately what percent of the oxygen on Earth is produced through
photosynthesis?

Answers

Answer 1

Answer:

50-85%

Explanation:

Answer 2
Like all plants, they photosynthesize – that is, they use sunlight and carbon dioxide to make food. A byproduct of photosynthesis is oxygen. Scientists believe that phytoplankton contribute between 50 to 85 percent of the oxygen in Earth's atmosphere.

Related Questions

Describe the environmental conditions that extremophiles are able to live in. Describe the environmental conditions that extremophiles are able to live in. Extremophiles were microbes that could only live in conditions that prevailed early in Earth's history when environments had high temperatures and pressure and lacked oxygen. Extremophiles includes those microbes that thrive in very high-salt, high-temperatures, low-temperature, high-pressure, low-pH, or high-pH harsh conditions. Extremophiles can only survive in habitats where there are extreme changes in close proximity, such as hydrothermal vents at the bottom of the ocean, where water as hot as 300°C emerges and mixes with 4°C seawater. Extremophiles are able to tolerate extreme conditions found in space such as a near vacuum and temperatures in excess of 300°C or several hundred degrees below 0°C.

Answers

Answer:

Extremophiles includes those microbes that thrive in very high-salt, high-temperatures, low-temperature, high-pressure, low-pH, or high-pH harsh conditions.

 

Explanation:

Extremophilic organisms are life forms that can grow in extreme environmental conditions, such as the above mentioned. In general, extremophiles are prokaryotic organisms (i.e., archaea and bacteria), although there are some eukaryotic species that are considered extremophilic organisms. Extremophiles are classified into two main types: 1-microorganisms that live in extreme conditions and 2-microorganisms that have the ability to tolerate extreme environmental conditions. Extremophiles are extremely important both in basic and applied research. An example of this is the thermostable Taq DNA polymerase obtained from the bacterium Thermus aquaticus (an extremophile that lives in areas of high temperature and pressure), which is essential to carry out the Polymerase Chain Reaction (PCR).

The gene for a long neck also gives stronger, faster muscles, which gives tortoises with this trait
an advantage in catching insects. How would this advantage affect the population of tortoises from
Generation 1? How may that affect subsequent generations?

Answers

Answer:

it would help them thrive

Explanation:

because it anables them to catch more with there stronger faster necks

The shift in the traits of tortoises in the population states how natural selection drove the evolution of the tortoises.

Why do tortoises shift in their traits?

During the evolution, with an extended period of time, the shorter vegetation became less available and tortoises with short necks had the disadvantage to survive in that area.

Tortoise develops genes for a long neck and having stronger, faster muscles, which gives tortoises with this trait an advantage in catching insects.

This natural selection helps the tortoises, to survive by catching more food in a particular area, it states tortoises with long necks are the only tortoises living during evolution.

Therefore, this advantage increases the survival rate of the tortoise population.

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Describe how the conservation of matter and energy is applied to stellar formation. In your answer discuss the early components of stars and what happens at the end of stellar lifecycles. Think about the matter in a star and what happens to it.

Answers

Answer:

                                             

Explanation:


4. What are two ways that celestial navigation/astronavigation and navigation by GPS differ?
Do they have anything in common?

Answers

Differences: Celestial navigation is completely based on the position of sun in the sky. Here, the use of angular measurements can exist among the celestial objects. It is less accurate than the GPS.

The ways that celestial navigation/astronavigation and navigation by GPS differ include:

Celestial navigation is less accurate than GPS.Celestial navigation is an ancient method of navigation while GPS is a newer method of navigation.

Celestial navigation is the navigation by the sun, moon, stars, and planets. GPS which refers to the global positioning system refers to the navigation system that's space-based that is important for broadcasting accurate navigation pulses to the users.

The global positioning system is also known to be the network of satellites that are used in determining the location of a particular thing.

The similarity between them is that they are both ways of locating a particular thing since they're used for navigation.

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I can bench 315, I got money, im 8% bodyfat and I dress pretty good and I'm 6 ft 1. why do I still get no girls????? also I got money. ​

Answers

maybe cause you asking this on brainly

Most of the ocean floor is a type of rock called basalt. At the edge of continents, this basalt erodes and becomes small particles. Over time, the particles are compressed and form what type of rock? A. Igneous B. Basinic C. Metamorphic D. Sedimentary

Answers

Answer: D. Sedimentary

Explanation:

Sedimentary rocks are formed overtime are different particles of sand, shells, pebbles and other fragments of materials form layers and harden into rock.

The particles are compressed and form sedimentary rocks in the ocean floor. Ocean floor is the bottom of the waterbody. Thus, the correct option is D.

What is Ocean Floor?

The seabed or ocean floor is the bottom of the ocean. All the floors of the ocean are known as 'seabed'. The structure of the ocean floor of the global ocean is governed by the plate tectonics.

Most of the parts of the ocean are deep, whereas the ocean floor is known as the abyssal plain. The seabed also known as the seafloor, ocean floor, and ocean bottom is the bottom of the ocean.

The ocean floor can be divided into three distinct regions which are the continental margins, abyssal plains, and the mid-ocean ridges. The ocean floor has rocks which are called basalt. Here, the basalt particles are compressed which forms the sedimentary rocks. Sedimentary rocks are formed by accumulation of minerals.

Therefore, the correct option is D.

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The function of pure lines: ?

Answers

Answer:

The definition of a pure line is a result of inbreeding where animals or plants have certain characteristics that are the same through generations. An example of a pure line is the result of inbreeding of a certain flower to help it fight off diseases.

what is poultry farming ???​

Answers

Answer:

Poultry farming is the form of animal husbandry which raises domesticated birds such as chickens, ducks, turkeys and geese to produce meat or eggs for food. It has originated from the agricultural era. Poultry – mostly chickens – are farmed in great numbers.

Answer:

Poultry farming is the form of animal husbandry which raises domesticated birds such as chickens, ducks, turkeys and geese to produce meat or eggs for food. It has originated from the agricultural era. Poultry – mostly chickens – are farmed in great numbers.

Tumor of the parathyroid gland often result in secretion of excess parathyroid hormone. Considering the function of this hormone, predict the effects of such a tumor.

Answers

Answer:

heloooooooooooooooooooooooooooooooooooooooooooooooooo

In one species of bird, there are three varieties of feather color. What is this an example of?
ecosystem diversity
species diversity
genetic diversity
color diversity

Answers

Answer:

The answer is C, genetic diversity.

Explanation:

The three varieties of feather color is an example of genetic diversity.

WHAT IS GENETIC DIVERSITY?

Genetic diversity is the variation that occurs within the genetic material of organisms.

The genes are responsible for the phenotypic expression of traits.

Three varieties of feather color in a poultry animal is an example of diversity in the genetic content.

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