During a human pregnancy, implantation

occurs at which stage?



a. zygote
b. early cleavage
c. blastocyst
d. gastrula
e. embryo


C

Biology & Microbiology

You might also like to view...

During the early phase of the ovarian cycle, which ovarian hormone is at the highest levels?

a. GnRH b. estrogen c. progesterone d. FSH e. hCG

Biology & Microbiology

Many kinds of ascomycetes and basidiomycetes have lost the ability to reproduce sexually.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Which of the following is NOT a general characteristic of protists?

a. nutritionally diverse b. heterotrophic c. eukaryotic d. multicellular

Biology & Microbiology

Please choose the statement describing why the geographical location of the fungus is so important to the likelihood of infection.

A) Some fungi favor warmer climates, and others favor colder climates. therefore, where the human population lives, determines the risk of infection. B) Some fungi favor higher humidity, and others favor lower humidity: therefore, where the human population lives determines the risk of infection. C) A particular genus of fungus may be found in a specific location or habitat, such as the ground around an extensive bird nesting site with the bird droppings, serving as nutrients for the fungus. D) The air quality—clean or polluted—determines the likelihood of fungal infections in the human population.

Biology & Microbiology