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irinina [24]
3 years ago
13

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

Biology
1 answer:
Ghella [55]3 years ago
8 0
This is false. Anaerobic photoautotrophs were NOT the first organisms to release oxygen into the early atmosphere, but cyanobacteria (aka pondscum) is believed to have been the first one to do this.
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Consider a field plot containing 200 kg of plant material. Approximately how many kg of carnivore production can be supported? A
mixas84 [53]

Answer:

E) 2

Explanation:

The energy transfer through the food chain is not 100% from one consumer to another, or from the producer to the primary consumer, but instead it is around 10%. This means that if a producer has the 100% of energy, as it is the one that produces it, the primary consumer will only get 10% of its energy while consuming it, while the predator of the the primary consumer will only 10% from the primary consumer, or rather only 1% from the energy of the producer. In this case we have 200 kg of plant material. The plant material represents a producer, thus it is the one with 100% of energy. A herbivore will eat the plant material, getting 10% of its energy, thus this plant material is supporting about 20 kg of herbivore. The predator of the herbivore gets only 10% from the herbivore's energy, or only 1% of the producer's energy, thus only 2 kg of predator can be supported by the initial plant material.

8 0
3 years ago
Which​ moist-heat cooking method is associated with foods that need to be tenderized through​ long, slow, moist​ cooking, such a
babymother [125]
What are the other answers? 

I do not think it is A.

Is Simmering an option?
8 0
3 years ago
What is the best example of how the nervous system maintains homeostasis?
Blizzard [7]
I'm not sure if it's the "best" example but.

If your blood tempature is low, the hypothalamus will issues reflex commands that make your body shiver. If you are hot, you will sweat is the opposite of this.

Another example is, if your blood contains pyrokines then you might have an infection so you begin to run a fever as your body's way to kill the pathogen at the direction of the hypothalamus.

Hope these examples help!
5 0
3 years ago
Read 2 more answers
7. Which of the following elements is LEAST likely to be found in sugar molecules
monitta

Answer:

sulfer

Explanation:

7 0
3 years ago
Read 2 more answers
In blood types, a person can have type A, type B, type AB or type O blood.
zubka84 [21]

Answer:

Possible blood type of their children is type A and type B blood

Explanation:

A person can have type A, type B, type AB or type O blood.

A woman who has type AB blood marries a man with type O blood.

Parents                        AB     x     OO

Possible genotypes        AO     BO

Possible blood type of their children is type A and type B blood

7 0
3 years ago
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