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kramer
3 years ago
13

Which of the following is NOT a characteristic shared by all chordates?

Biology
1 answer:
Dvinal [7]3 years ago
4 0
I believe this is a bit of a trick question, while you are right about both B and D, they both preexist they just develop into other structures. I believe the correct answer is A since the nerve cord is hollow not solid. 
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Which of the following is TRUE of the process of meiosis?
MArishka [77]

Answer:

A. It results in the number of chromosomes being reduced by half.

Explanation:

In the process of meiosis, one cell is divided 2 times to form 4 daughter cells. These 4 daughter cells have half the number of chromosomes that of the parent cell.

6 0
2 years ago
All of the following are true of all parasites except
Ede4ka [16]

Answer:

A.

Explanation:

A parasite does not feed it's host; in fact, it takes food energy/ food from it's host.

8 0
3 years ago
What is allele frequency?
IgorLugansk [536]

Answer:

The correct answer would be - D. the distribution of alleles in a population.

Explanation:

Allele frequency in population genetics is the term used to provide the amount of the different alleles in particular loci. In other words, it is the distribution of alleles in a population.

The term allele frequency refers to the fraction of the copies of the gene of the alleles in a known population. It can be calculated by the number of allele present of interest divided by total number of alleles in a population.

5 0
2 years ago
In Table 9-1, explain the way that ammonia, salt, and water are alike.
baherus [9]
There exists the same question from other source that has the table;

The information in the table are as follows:
Ammonia - NH3
Glucose - C8H12O6
Salt - NaCl
Water - H2O

Ammonia, salt and water are alike because, first they are all compounds. They are composed of two different atoms: Ammonia - N and H, Salt - Na and Cl, Water - H and O
4 0
3 years ago
How did the stop codon mutation in Lucy’s ADA gene stop her ADA protein from working?
Mama L [17]

Answer:

The stop codon mutation in Lucy's ADA gene stopped her ADA protein from working by putting a hault to the process of translation.

Explanation:

This stopped it from working because it lead to a protein that was then nonfunctional.

3 0
2 years ago
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