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Tresset [83]
3 years ago
5

What ignited the Cambrian explosion of life?

Biology
1 answer:
uysha [10]3 years ago
3 0
Increase levels of oxygen in seawater, evolution of eyes, origin of hard parts, and genetic changes
hope that helps <3
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Which statement best explains why muscle cells and skin cells do not look and act the same?
Anon25 [30]
The statement which explains why muscle cells and skin cells do not look and act the same is this: THE GENES IN EACH TYPE OF CELL ARE BEEN EXPRESSED DIFFERENTLY. 
All the cells in human's body has the same set of genes, this is because, all the cells in the body originated from a single fertilized egg. Even though all the cells in the body has the same origin, they are different from one another because, the cells use the same set of genes differently.
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Biodiversity loss from species extinctions may rival pollution and climate change impacts. Species extinction and loss of biodiversity could be as devastating for the earth as climate change and air pollution. That's the finding of a new study by a group of scientists from nine countries.
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For Dalmatian dogs the spotted condition (D) is dominant to the non-spotted condition (d). What are the results of a cross betwe
Svetradugi [14.3K]

If two heterozygous individuals are crossed, the results of the cross are as follows:

  • SS - spotted condition
  • 2 Ss - Spotted condition
  • ss - non-spotted condition

<h3>What is an Heterozygous Cross:</h3>

According to this question, the gene coding for spotted condition. The allele for spotted condition (S) is dominant over the non-spotted condition (s).

If two heterozygous Dalmatian dogs are crossed i.e. Ss × Ss, the allele combination for each gamete is as follows:

  • Ss - S and s
  • Ss - S and s

The following offsprings will be produced:

  • SS - spotted condition
  • 2 Ss - Spotted condition
  • ss - non-spotted condition

Learn more about heterozygous cross at: brainly.com/question/13050360

7 0
3 years ago
Which label should Megan add to complete her chart?
GREYUIT [131]

Answer:

Megan should add Maple, 39%

OAmalOHopeO:

7 0
3 years ago
A catabolic pathway may be which of the following? a. a set of reactions that combine monomers into larger, more energy-rich pol
KiRa [710]

Answer:

The correct answer is option c. "a set of reactions that release energy that can be used to drive cellular work".

Explanation:

Catabolism is a part of metabolism at which molecules are broken down into smaller units in order to release energy that could be used in other reactions that drive cellular work. A catabolic pathway follows catabolism criteria. Catabolic pathways are the opposite of anabolic pathways, at which large molecules are synthesized with the requirement of external energy supply.

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3 years ago
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