Which is true for urochordates?

The notochord is present throughout their lives.

The notochord is present only in the larval stage; it is absent in adults.

The notochord is present in the larval stage; it becomes vertebrae in adults.

An organism has gametes that contain 18 chromosomes how many chromosomes are in each of its body cells

Robert is conducting breeding experiments with mice. he crossed two brown mice and found that 25% of their offspring were white. what are the genotypes of the two brown parent mice?

If the frequency of an allele ("A") for an STR locus is 0.02 and the frequency of another allele ("B") for the same locus is 0.03, what is the probability that a member of that population is heterozygous ("AB") for the above alleles?

46. BTE work simulator is more reliable a. Static mode b. Dynamic mode c. Functional mode d. None of above

Are neurons located only in our brains? And also, when we are in a coma, what happens to our neurons?

What is the primary function of the respiratory system? Question 5 options: 1) Transportation of blood 2) Oxygenate blood 3) Absorption of nutrients 4) None of the above

7 the organisms felis catus and felis silvestris do not belong to the same -

Hich equation shows a disaccharide with the monosaccharides that make it up?

Which of these vessels returns blood to the left atrium of the heart? A) pulmonary veins B) coronary sinus C) superior vena cava D) pulmonary trunk

Prokaryotes replicate and form two identical daughter cells using a process called