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IRISSAK [1]
2 years ago
14

Describe how scientists think the Earth was formed

Biology
1 answer:
schepotkina [342]2 years ago
5 0

Answer:

The Big Bang THEORY

Explanation:

They think an explosion occurred in space to create collisions between molecules. These collisions created the planets and life as we know it. They don't know where these molecules came from and it's never been proven, which completely debunks this theory for me.

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In lizards, the gene for color and the gene for pattern are located on the same chromosome and exhibit recombination. The lined
Molodets [167]

Answer:

The all possible gametic haplotypes that can be made are described below.

Explanation:

According to the question, F1 progeny was produced by crossing a homozygous dominant parent with a homozygous recessive parent. As per the question, cross is to be made with a heterozygous parent, which will have solid unpatterned allele and blue colour with a homozygous recessive i.e lined, aqua lizard.

The possible haploid gametes for the heterozygous parent would be BL, bl, Bl, bL and for homozygous parent would be all bl.

7 0
2 years ago
THIS IS FOR 100 POINTS, IF YOU HAVE A COURSE HERO ACCOUNT AND CAN FIND IT THATS PERFECT.
Agata [3.3K]

Answer:

im not sure BUT...

Explanation:

Maybe try go ogle? Dont doubt yourself oyull do fine! Just trust yourself!

5 0
2 years ago
Energy sources can impact the environment by causing acid rain, breathing problems, and killing organisms. Please select the bes
sukhopar [10]

Answer:Acid rain

Explanation:

7 0
3 years ago
A key feature of animal body plans is that they can show multiple types of symmetry.For example,,a dog would represent bilateral
Stella [2.4K]

Answer:

A key feature of animal body plans is that they can show multiple types of symmetry.For example,,a dog would represent bilateral symmetry,while a jellyfish and other cnidarians would represent <u><em>radial symmetry</em></u>.

Explanation:

In biology, symmetry can be described as the balanced distribution of the body shape of an organism.

Radial symmetry can be described as a symmetry which depends on a central axis. The symmetry of cnidarians depends on a central axis hence they have radial symmetry.

Bilateral symmetry can be described as a symmetry in which the two halves of the symmetry are mirror images of one another. For example, humans, dogs etc.

6 0
3 years ago
why would having both polar and nonpolar properties in a protective boundary be advantageous for the cell?
Reika [66]

Explanation:

The polar nature of the membrane’s surface can attract polar molecules, where they can later be transported through various mechanisms. Also, the non-polar  region of the membrane allows for the movement of small non-polar molecules across the membrane’s interior, while preventing the movement of polar molecules, thus maintaining the cell’s composition of solutes and other substances by limiting their movement.

Further explanation:

Lipids are composed of fatty acids which form the hydrophobic tail and glycerol which forms the hydrophilic head; glycerol is a 3-Carbon alcohol which is water soluble, while the fatty acid tail is a long chain hydrocarbon (hydrogens attached to a carbon backbone) with up to 36 carbons. Their polarity or arrangement can give these non-polar macromolecules hydrophilic and hydrophobic properties i.e. they are amphiphilic. Via diffusion, small water molecules can move across the phospholipid bilayer acts as a semi-permeable membrane into the extracellular fluid or the cytoplasm which are both hydrophilic and contain large concentrations of polar water molecules or other water-soluble compounds.

Similarly via osmosis, the water passes through the membrane due to the difference in osmotic pressure on either side of the phospholipid bilayer, this means that the water moves from regions of high osmotic pressure/concentration to regions of low pressure/ concentration to a steady state.

Transmembrane proteins are embedded within the membrane from the extracellular fluid to the cytoplasm, and are sometimes attached to glycoproteins (proteins attached to carbohydrates) which function as cell surface markers. Carrier proteins and channel proteins are the two major classes of membrane transport proteins; these allow large molecules called solutes (including essential biomolecules) to cross the membrane.

Learn more about membrane components at brainly.com/question/1971706

Learn more about plasma membrane transport at brainly.com/question/11410881

#LearnWithBrainly

5 0
3 years ago
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