When erythrocytes are in the capillaries of the lungs, O2 diffuses ________ and is bound to ________

Fill in the blank with correct word.


Answer: inward; hemoglobin

Biology & Microbiology

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How many chromosomes are found in a single human cell at the end of each of the following meiotic stages? ________ prophase I ________ anaphase I ________ prophase II ________ telophase II

What will be an ideal response?

Biology & Microbiology

Viral gastroenteritis that affects people of all ages and usually lasts less than 3 days is caused by

A. herpes. B. hepatitis B. C. norovirus. D. rotavirus.

Biology & Microbiology

Although insects and birds both have wings, the structures do not come from the same lineage and these species do not share a common ancestor. This would be an example of ______.

a. a homologous structure b. a vestigial structure c. an analogous structure d. none of the above

Biology & Microbiology

Linnaeus classified organisms based on

1.DNA sequences. 2.protein sequences. 3.morphological characteristics. 4.evolutionary history. 5.existing phylogenetic trees.

Biology & Microbiology