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EastWind [94]
3 years ago
9

At the time of the origin of LUCA which mode of nutrition was NOT being used?

Biology
1 answer:
Vinvika [58]3 years ago
6 0

Answer:

C. Photoautotrophs-oxygenic.

Explanation:

LUCA is an abbreviation of the ‘Last Universal Common Ancestor’. The LUCA was a microorganism which lived around 4 billion years ago. The evidence had shown that the LUCA was lived deep underground in hydrothermal vents. These vents were rich in iron-sulphur. It did not use air but made its food from the metal-rich environment surrounding it. It made organic compounds such as ammonia for its metabolism from elements such as hydrogen, carbon dioxide and nitrogen.

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What is an ecological system called that consists of all of its biotic and abiotic factors? A. Community B. Ecosystem C. Habitat
Viefleur [7K]

Answer: The correct answer is- B) Ecosystem.

Ecosystem can be described as a group of living organisms present in a particular area that are interacting with each other as well as the non living components of that environment.

In other words, it is the interaction between biotic ( living such as plants and animals) and abiotic ( non living such as temperature, air, water) components of an environment.

Example- Pond ecosystem, lake ecosystem.

6 0
3 years ago
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Which statement correctly summarizes Wegener’s theory of continental drift?
GuDViN [60]

The correct answer would be D), over millions of years, Pangaea broke apart and drifted to form the seven continents.

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3 years ago
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What evidence is used to determine the branching sequence of an evolutionary tree?
kumpel [21]

Anatomical or molecular homologous structures

7 0
3 years ago
4.
yaroslaw [1]

The question is incomplete as it does not have the option which are:

  • Favorable genes from parental generations provide advantageous characteristics to the hybrid species.
  • Hybridization produces offspring traits that allow different species to survive in extreme environments.
  • Inherited traits passed on from parental generations make hybrid species more susceptible to disease.
  • Hybrid species display more adaptation due to their reduced genetic diversity

Answer:

Favorable genes from parental generations provide advantageous characteristics to the hybrid species.

Explanation:

The white cattail is the plants which grow in the wetlands that are they are adapted to grow in the wetlands. The white cattail species in nature is the result of natural hybridization that is mixing of the genes of two different species of the same genus.

The white cattail can when grown in the Midwestern states well adapted to grow in that area and the reason for this could be accounted that the genes from the parental plants provided many advantages to the newly formed hybrid species.

Thus, the selected option is correct.

8 0
3 years ago
What is maeant by sexual reproduction
Karolina [17]

Answer:

Sexual reproduction is a mode of reproduction involving the fusion of haploid female gamete (egg cell) and haploid male gamete (sperm cell). The fusion of these gametes occurs at fertilization resulting in the formation of a diploid zygote. ... Two major types of sexual reproduction are syngamy and conjugation.

Explanation:

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3 years ago
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