After a baby is delivered, what else is expelled from the female's uterus?
a. placenta
b. uterine lining
c. primary oocytes
d. oxytocin
e. corpus luteum
a
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_______________ are chemical substances produced in small quantities in one part of an organism and then transported to another part of the organism, where they bring about physiological responses.
A. Glycoproteins B. Photosynthates C. Hormones D. Heat shock proteins E. Pulvini
Which of the following is NOT a logical hierarchy of biological organization?
a. cells, tissues, organs, organ systems, organisms b. family, order, class, phylum, kingdom c. cells, molecules, organelles, tissues, systems d. molecules, cells, tissues, organ systems, populations e. organisms, populations, communities, ecosystems, biosphere
The functions of antibodies include
A) activating complement, inactivating pathogens, and clumping pathogens. B) activating macrophages, stimulating mast cells, and increasing the white blood cell count. C) creating a warm and swollen area near the site of infection, which harms the pathogens. D) causing B cells to bind to T cells, forming clumps that are visible to the immune system.
Plants have associations below ground with
a) mycorrihizal fungi b) nitrogen-fixing bacteria c) biofilms of microbes d) all of the above