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beks73 [17]
3 years ago
6

Scientists think the earth is approximately how old?

Biology
2 answers:
marysya [2.9K]3 years ago
5 0
Approximately 4 billlon years old
oee [108]3 years ago
4 0
Scientists believe the earth is approximately 4 1/2 billion years old
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In monkeys brown is the dominant trait (T) and black fur is the recessive trait (t). If there is no incomplete dominance or codo
S_A_V [24]

Answer: Brown

Explanation:

Co- dominance occur when the two traits(dominant and the recessive) are both expressed given rise to a phenotype that is different from the parent.

Since Brown(T) is the dominant color and it is expressed over black fur(t) an organism with Tt genotype having the two alleles will be brown fur, where the black fur will not be expressed in the phenotype and the brown expressing itself over the black.

7 0
3 years ago
Describe the difference between covalent and ionic bonds. Give one example of each
AnnZ [28]

Answer:

Actually, a covalent bond is formed between two non-metals. Electrons are shared between the two atoms in order for them to achieve a full outer shell. Covalent compounds do not conduct electricity.   An ionic bond is formed between a mental and a non-metal. Electrons are transferred from the metal atoms to the non-mental atoms to form ions. Ionic compounds conduct electricity when dissolved.

Explanation:

8 0
3 years ago
A nerve impulse moves toward a neuron's cell body along _____.
Travka [436]
A nerve impulse moves toward a neuron's cell body along Dendrites.
4 0
3 years ago
Sort the descriptions of open clusters and globular clusters into open clusters or globular clusters
Anestetic [448]

Answer:

open clusters are  A.no more than a few thousand stars, B.disorganized, F loose

globular clusters are C.tightly packed, D.more than a million stars, E.made of older stars

Explanation:

Globular clusters are old clusters of stars that have remained in a gravitationally bound system. These clusters are usually roughly spherical and can contain anywhere from a few thousand to a million stars. Globular clusters are found in our galaxy’s spherical halo, so they are distributed above, below, and level with the plane of our flat, disk-shaped Milky Way.

Open clusters are much younger and smaller than globular clusters. They are the recent birthplaces of new stars, which form out of clouds of dust and gas, and contain only hundreds or thousands of stars. Though the stars in an open cluster formed together out of the same material, they do not remain gravitationally bound over time and spread out, scattering their stars far and wide. Because they are not gravitationally bound, these clusters can have random and irregular shapes. They are located in the plane of our galaxy, along the spiral arms where the gas and dust in the Milky Way

8 0
3 years ago
It is probably that Photosynthesis could have started from natural chemical reaction combinations Because it is basically a simp
Jobisdone [24]

True

Explanation:

Photosynthesis is basically a simple and natural process. Photosynthesis is defined as the process whereby green plants manufacture their food in the presence of sunlight, carbon dioxide and water.

  • The process of photosynthesis is vital to all life.
  • Through photosynthesis light energy from the sun is transformed into chemical energy.
  • The food manufactured by plants is consumed by organisms higher up in the trophic level.

                          6CO₂  + 6H₂O  →   C₆H₁₂O₆ + 6O₂

                     photosynthesis equation.

  • The product of photosynthesis is glucose and water.

Learn more:

Photosynthesis brainly.com/question/4216541

#learnwithBrainly

8 0
3 years ago
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