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stiks02 [169]
3 years ago
6

A common ancestor is evident when comparing __________________ of different species in the phylum Chordata, especially in the ea

rly stages.
Biology
1 answer:
grin007 [14]3 years ago
4 0

Answer:

embryos

Explanation:

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6. How do earthquake and volcano patterns support the idea of plate tectonics? (Multiple choice)​
lukranit [14]

Answer:

The Answer is A

Explanation:

After looking at all the other options, A is the best option. Good luck on your test! :)

Hopefully I helped! :)

8 0
3 years ago
4. Suppose that a dominant allele (P) codes for a polka-dot tail and a recessive allele (p) codes for a solid colored tail. If t
lisov135 [29]

Answer:

The correct answer would be:

  • Genotype ratio: 1 (PP) : 2 (Pp) : 1 (pp)
  • Phenotypic ratio: 3 (polka-dot tails) : solid colored tail

The genotype of both parents is Pp (heterozygous).

Thus, both the parent would produce two types of gametes which are P and p.

The cross would result in the production of offspring with three types of genotype PP, Pp, and pp in 1:2:1.

Offspring with PP and Pp will have a polka-dotted tail as it is the dominant trait.

Thus, the phenotype ratio would be 3 (polka-dotted tail) : 1 (solid colored tail).

3 0
3 years ago
What did Charles Darwin do that allowed him to make some significant
4vir4ik [10]

Answer:

Charles Darwin went to the Galapagos Island(s).

Explanation:

Charles Darwin took a boat to the Galapagos Island(s) to study plants and animals that proved to show some similarity between each other, such as two finches, which is actually one of his most popular discoveries.

5 0
3 years ago
What is the common name of the group whose members are characterized by endoskeleton and a unique water vascular system?
Llana [10]
A. Echinoderms

Hope this helps!
5 0
3 years ago
What is represented by the base root of a phylogenetic tree?
NeX [460]

The common ancestor.

A phylogenetic tree shows how a species originates (by evolution) other species. It’s very similar a genealogic tree. If you want your family tree, you should write down your name and the names of all your brothers and sisters and then draw a line from all those names to the names of your parents, and then draw a line from the name of your father to the names of your gramma and grampa, and then do the same with the names of your aunts and uncles. If you repeat the process with many, many generations, you will have the common ancestor to all of those relatives. You can do the same with species: for example, humans are supposed to have a common ancestor with monkeys, so their lines will end together in the same point in the graph. Then you have to draw a line from that point to another point that will be shared with other mammalians, then Mammalians share a point with other vertebrates, and so on… If you keep on going, you will get to LUCA someday.




7 0
3 years ago
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