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Ede4ka [16]
4 years ago
15

What do scientists think might cause the universe to stop expanding and collapse in the Big Crunch? dark energy dark matter cosm

ic background radiation gravity
Biology
2 answers:
liq [111]4 years ago
7 0
Gravity is the answer
hammer [34]4 years ago
3 0
Newtonian gravity is what scientists believe will stop the universe’s expansion. This attraction would have to overcome the propulsive force of dark energy expansion, thus causing the compression of all the matter in the universe back into a small, hyperdense singularity.
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How do scientists describe a genotype that has one copy of the recessive allele?
Rom4ik [11]

Answer:

Heterozygous

Explanation:

A genotype describes which alleles of a particular gene a person has. We have two copies (alleles) of each gene, one from mom and one from dad, but these alleles can be different.

Often, these alleles can be dominant and recessive with regards to eachother. The dominant allele will always be displayed in the phenotype, whereas the recessive will not be presented, as it is masked by the dominant gene. If you have two copies of the dominant gene (homozygous) you will display the phenotype associated with the dominant genotype. If you have two copies of the recessive gene (homozygous) you will display the phenotype of the recessive gene.

If you have one copy of each (heterozygous), you will display the phenotype of the dominant gene, even though your genotype has a copy of each.

6 0
4 years ago
Please help me if you only know
zzz [600]

Answer:

(1) Translation begins when a ribosome (gray) docks on a start codon (red) of an mRNA molecule in the cytoplasm. (2) Next, tRNA molecules attached to amino acids (spheres) dock at the corresponding triplet codon sequence on the mRNA molecule.

Explanation:

1st one.

7 0
3 years ago
Read 2 more answers
Why is biomimicry important for animals? Give an example of biomimicry.​
Anni [7]

Answer:

Biomimicry is important for animals for survival, as looking like a known dangerous animal can lower its chances for being attacked. An example is the monarch butterfly, and its mimicked viceroy butterfly, having nearly identical wings.

Explanation:

4 0
3 years ago
How can you separate iron filings from sand through which process​
ale4655 [162]

Answer:

Process called magnetic separation

Explanation:

The magnetic separation is a process in which magnetically susceptible material is extracted from a mixture using magnetic force.

This method is also used to separate the mixture of sand and iron fillings as iron is attracted by magnet.

6 0
3 years ago
Read 2 more answers
What causes the motion of particles
Naya [18.7K]

Answer:

Particles in solids are always vibrating (moving back and forth) in place. The vibrational motion of particles in solids is kinetic energy. Heat makes the particles in a solid vibrate faster, giving them more kinetic energy. Faster-vibrating particles bump into one another more often and hit each other harder.

Explanation:

Hope this helps- good luck! ^w

6 0
3 years ago
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