Anaerobic photoautotrophs were the first organisms to release oxygen into the early atmosphere.True
False

Answers

Answer 1
Answer: false, they were not Toxic was actually poinsonous to the Anaerobic photoautotrophs. However cyanobacteria (a.k.a pondscum) is believed to be the first bacteria to give off oxygen as a by-product of photosynthetic processes.

Related Questions

Use the drop-down menus to match each phrase below with the type of microscope it describes.magnifies objects in steps is the type that was used to observe the first strands of DNA contains a series of lenses includes magnifying glasses creates a digital image uses one lens for magnification
A snake that eats a mouse is an exampe of
SCIENCE What causes earthquakes? A.)the release of heat B.)elastic rebound C.)frictional heating D.)the Richter scale
Evolution is change in a population over time and includes the gene pools of that population. How does biogeographic isolation allow for the change of gene pools over time? A) biogeographic isolation affects the random changes that take place within gene poolsB) biogeographic isolation affects the changes in gene pools that result from which organisms are breedingC) biogeographic isolation determines who will win competition for matesD) biogeographic isolation determines the time that populations will breed
Prior to 1850, the melanic form of the peppered moth in Europe was:______.

1.Those were pterodactyls soaring with cavernous gray wings, gigantic bats of delirium and night fever. (“A Sound of Thunder") (1 point)blindnesscrazed thoughts
hunger
spellbound

2. His management style was not very rigid or hierarchical; as long as someone got his or her job done, almost anything went. (“Nolan Bushnell") (1 point)poorly led
based on pay
determined by personality
arranged by rank

3. He got a foot on it, lost it, and in the mayhem of other boys’ arms and legs, noticed the ball rolling loose. (“Nethergrave") (1 point)anxiety
confrontation
confusion

Answers

1. The correct answer is crazed thoughts. The correct option among all the options that are given in the question is the second option.

2. The correct option is arranged by rank. The correct option among all the options that are given in the question is the fourth option.

3. The correct option is confusion. 
The correct option among all the options that are given in the question is the third option.

Final answer:

The questions are based on English literary interpretation where 'gigantic bats of delirium and night fever' refer to 'crazed thoughts', 'not very rigid or hierarchical' suggest a system not 'arranged by rank' and 'in the mayhem of other boys’ arms and legs' signifies 'confusion'.

Explanation:

The subject of these questions is English, specifically focused on understanding the usage of specific phrases or words within different contexts of literature. For the first question, "gigantic bats of delirium and night fever" could be interpreted as a metaphor suggesting crazed thoughts as delirium often refers to a mental state marked by confusion and hallucinations. In the second question, "not very rigid or hierarchical" indicates that the management was not arranged by a rank system. In the final question, "in the mayhem of other boys’ arms and legs" indicates a scene of confusion where the ball got lost amidst the chaos.

Learn more about Literary Interpretation here:

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When you start to exercise, the body responds in various ways due to internal stimuli. one response is an increase in heart rate. identify a stimulus that would cause an increase in heart rate. a.a decrease in body temperature
b.an increase in oxygen levels in the blood
c.a decrease in the rate of cellular respiration
d.an increase in carbon dioxide levels in the blood?

Answers

Answer: The correct answer is D) An increase in carbon dioxide level in the blood.

During exercise, contraction of muscles take place very quickly as they work harder during exercise. As more oxygen is required to burn calories efficiently, the demand for oxygen supply increases.  

When we start exercising, body temperature increases as the rate of cellular respiration also increases.

An increase in carbon dioxide in the blood causes increase in heart rate as there is more demand of oxygen for efficient contraction of the muscles.

D.an incerase in carbon dioxide levels in the body.

What would happen if there was no condensation stage in the water cycle

Answers

Condensation is the process by which water vapor is changed back into liquid water. Condensation is very important to our weather and climate because it is what is responsible for cloud formation.

Without clouds, we would not get to the third phase, called precipitation, which we will talk about in a minute. Clouds form when water vapor condenses around small particles, like bits of dust or smoke in the air. Depending on the size of the drops, these particles may or may not be visible. Even on a clear, cloudless day, water vapor is always present in the atmosphere, but it does vary in amounts. We know it is present on a very humid day; it often feels like we need to swim through the air! Fog is condensation near the ground.

Fog forms when moist warmer air comes in contact with cooler air near the surface. Just like when the bathroom mirror gets all foggy during a shower because of condensation, fog also forms because of this warm air contacting a cooler air mass. The fog forms drops in the air rather than on the surface of your mirror.Clouds will be useless since they will not carry and drop water.
Clouds will be useless since they will not carry and drop water. If there is no water cycle, all plant,animal,and human life would not exist. 
Since no water cycle so no evaporation of water so the water level will increase generally if the water will not evaporate which will result as a flood.

The Confederation Congress passed the Land Ordinance of 1785, which dealt with how land was distributed in the Northwest Territory. One of the following was one of the results of the Land Ordinance. Which is it?A. Immigrants from certain countries were prohibited from moving to the Northwest Territory.

B. The Northwest Territory became the most densely populated area in the U.S.

C. Americans who wanted to move to the Northwest Territory were given free land.

D. The national government was able to raise money as it sold land in the area.

Answers

The results of the Land Ordinance was that the national government was able to raise money as it sold land in the area. The answer to your question is D. I hope this is the answer that you are looking for and it comes to your help.

Answer:

D

Explanation:

In the first paragraph, UCLA climate scientist Daniel Swain claims, " We've gotten to the point where when it comes to extreme heat waves, there is almost always a human fingerprint." Explain: What does Swain mean?

Answers

Answer:

It means human is responsible for everything.

Explanation:

Swain who is climate scientist mean that the heat waves occurs due to the human intervention and activities. Human is responsible for the change occurs in climate and global warming. In some areas heat waves occurs which adversely affected human as well as animals and plants. Heat wave is a period of hot weather occurs due to emission of greenhouse gases which increase the temperature of the earth's surface.

What happens to an egg cell during ovulation?

Answers

All women are born withmillions of immature egg cells in their ovaries. Ovulation happens when an ovaryreleases a mature egg through the fallopian tube. This process of getting anegg to mature will take approximately a month. Normally, only one of the pairsof ovaries will release a matured egg ready to be fertilized. Usually, it willtake 12-24 hours before the matured ovum dies when not fertilized. But whenthey are fertilized, they cling to the walls of the uterus.

The egg is released from the ovary in ovulation.