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Hoochie [10]
2 years ago
11

Why do scientists assume the first photosynthetic organisms were anoxygenic?

Biology
2 answers:
Scrat [10]2 years ago
7 0

Answer:

scientists are always finding new things

Doss [256]2 years ago
5 0
Because photosynthesis produces oxygen, scientists assume the first photosynthetic organisms were not consuming oxygen, but producing it.
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A land developer and several ecologists are discussing how a parcel of private land should be developed with housing while savin
FromTheMoon [43]

Options for the question have not been provided. They are as follows:

A) The single intact parcel would have a smaller amount of edge than the 20 separate parcels.

B) The isolated hectare plots increase the ability of individuals to disperse from one habitat to another.

C) The separate 1-hectare plots are less vulnerable to edge effects.

D) The large plot will create more inbreeding in many species.

Answer:

A) The single intact parcel would have a smaller amount of edge than the 20 separate parcels.

Explanation:

In the given case, 20 hectares of land has been allocated to natural habitat. This means that natural flora and fauna will flourish here without any human interference. In this situation it is better to have an intact 20 hectares area at one side of the land, rather than having 20 separately spread out 1 hectare areas. This is because having one large piece of land at one side will reduce the edge effect.

Edges occur where two different habitats meet. While edges can be beneficial when it comes to natural habitats because the boundary habitat increases overall biodiversity, it can be detrimental when the edges are due to human settlements. It will be difficult to avoid human interference as the natural habitats are scattered among human settlements. Each individual plot will also get less area due to which it will be difficult for all the species to accommodate comfortably. Many animals can venture out in search of food which can be dangerous to both animals and humans. It is better to have a big separate land at one corner so that everyone can survive peacefully.

3 0
3 years ago
How do tussock moths obtain energy in cellular respiration?
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Tussock moths obtain energy by cellular resporation by the oxidation of food they consume. The food they consume is oxidised to synthesize special type of phosphate which is then stored as energy. The energy is utilised by their cells whenever needed. 
8 0
3 years ago
Jamal drew a flow chart to show how the carbon in his brain tissue originated as co2 in the atmosphere. interpret his model.
bezimeni [28]

We have heard about Respiration. In human beings, respiration is a cellular activity which takes place in the presence of oxygen and in result produces carbon dioxide. Jamal model is a clear manifestation of that process. Medulla is the region of a brain that controls the respiration activity. When we breathe we take in oxygen and the excess amount of carbon dioxide is removed from out body.

Brains cells have capability to detect the carbon concentration in blood and add excess amount of carbon from body to the air.  


8 0
3 years ago
What was the reaction of the scientific community when Charles Darwin published his theory on Natural selection?
damaskus [11]
He received a lot of rejections also he faced intense criticism by the church but however it was accept by a large number of scientist. Hope it helps! God bless you <span />
6 0
3 years ago
What is a heterozygous
emmasim [6.3K]

Answer:

an individual having two different alleles for a specific trait.

Explanation:

7 0
3 years ago
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