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olga_2 [115]
3 years ago
9

Select all that apply.

Biology
2 answers:
QveST [7]3 years ago
7 0
The answers are A) ectoderm and B) endoderm.

Fertilization is a fusion of male and female gametes which leads to the formation of a zygote. The zygote undergoes mitosis and transforms into a single-layered blastula. Gastrulation is a transformation of the blastula into a two-layer or three-layer gastrula. Cnidarians are a diploblastic animal because their gastrula has only two layers - endoderm and ectoderm.
Nastasia [14]3 years ago
5 0

the answer is A and B

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3 years ago
How did fossil<br> fuels form, and how<br> are they obtained<br> and used?
Usimov [2.4K]

Explanation:

Fossil fuels are important energy sources for our every day activities.

  Formation of fossil fuels

Fossil fuels forms from the accumulation and burial of organisms in a basin of deposition. Instead of the organisms decaying, they preserve their carbon content. To be worthy of becoming fossil fuels, organisms must be buried in an environment where there is little to no oxygen to fast-track decomposition of the buried organic matter. Increase in temperature and pressure causes the organic matter to transform into fossil fuels.

How are they obtained

First, different fossil fuels have their extraction techniques because they occur in different physical state of matter.

For the solids e.g coal: exploration is carried out first and if a prospect is delineated, mining engineers design the best way to extract the coal from nature. Coal is usually found laid in sedimentary beds in nature. Top layers of sediments can be removed to extract the coal.

For fluids such as crude oil and natural gas, after a prospect is identified, a rig is usually constructed to extract the fluid and gas. The natural pressure allows for the fluids the rise within the drill used in extraction.

How are they used

Coal and gas are used to power electrical generating plants. They are used to heat steams which drives turbines and produce electricity.

Natural gas is used as a domestic fuel for cooking and so also coal.

When crude is processed a lot of product is obtained. Gasoline is used to power most internal combustion engines. Some chemicals useful for manufacturing plastics, drugs e.t.c are also derived from the processed crude.

Learn more:

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8 0
3 years ago
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The statements that are true concerning living organisms and how they acquire energy are;

Cells, the basic unit of life, cannot survive on their own. Instead, all living organisms must obtain and use energy to live.

The daily food consumption of an organism provides the energy to support all the metabolic processes required for the organism to live.

What are Living organisms?

Living organisms can be regarded as organisms that possess characteristics such as the ability to move and reproduce.

However, they acquire useful energy in different ways, and the daily food consumption of an organism provides the energy to support all the metabolic processes.

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3 0
2 years ago
What carries information from DNA?
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3 years ago
How does cladistics help us understand phylogeny
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