Similar traits are classified as by function or origin. _____ structures share a similar embryonic origin. ______ organs have a similar function.

Identify whether each statement is a characteristic of a plant or animal. Plant Animal

Number these steps in vertebrate embryogenesis in order.      ______  formation of archenteron      ______  formation of blastula      ______  neurulation      ______  gastrulation      ______  cleavage       ______  zygote

The normal sequence of developmental stages is... Group of answer choices blastocyst--> morula--> zygote--> embryo--> fetus. morula--> fetus--> embryo--> blastocyst--> zygote. morula--> zygote--> fetus--> blastocyst--> embryo zygote--> morula--> blastocyst--> embryo--> fetus blastocyst--> zygote--> embryo--> morula--> fetus.

-In humans, the ability to roll the tongue is a dominant trait. If a man is homozygous dominant for tongue rolling (RR) what type(s) of gamete(s) could he produce?  ________ -If a woman can’t roll her tongue, what is her genotype? __________ -Using a Punnett square, determine the probable genotype and phenotype of their child. -Cross two hybrid tall plants. What phenotypes and genotypes would you expect? Genotype:           Phenotype:      Phenotype Ratio: -In man, normal pigmentation is determined by a dominant gene (A), albinism to its recessive allele (a). A normal man marries an albino woman.  The first child is albino.  What are the genotypes of these three people? Father:  Mother:    Child:

first and second division after the egg is ferlilized is mitosis or meiosis.

Define mammary gland with examples in class-mammalia?

Ectoderm, or middle layer, give rise to connective and muscular tissue. Group of answer choices -True -False

the two oval shaped organs that produce store and real ease eggs are called

A 4-year-old boy is brought to the pediatrician because of chronic constipation and poor weight gain. Hirschsprung disease is suspected.  This disorder is caused by disturbance in the normal migration of neural crest cells to the intestine. This migratory process is usually completed by the 12th week. Should this migratory progress be interrupted during the final week, which of the following organs are most likely to be affected? A. Duodenum B. Jejunum C. Ilium D. Cecum E. Sigmoid colon F. Rectum