Answer the following question given this paragraph: Female monotremes lack a uterus and vagina. Instead, they have a cloaca with one opening, like the cloacas of reptiles and birds. The opening is used to excrete wastes as well as lay eggs. Q: Female monotremes lack a uterus and vagina. instead they have what? Choices: - endometrium - placenta - urethra - cloaca A:
cloaca
Answer the following question given this paragraph: Of the 23 pairs of human chromosomes, 22 pairs are autosomes (numbers 122 in Figure above ). Autosomes are chromosomes that contain genes for characteristics that are unrelated to sex. These chromosomes are the same in males and females. The great majority of human genes are located on autosomes. At the link below, you can click on any human chromosome to see which traits its genes control. http://www. ornl. gov/sci/techresources/Human_Genome/posters/chromosome/chooser. shtml. Q: Which blood vessels is oxygen transferred through? Choices: - cilia - arteries - veins - capillaries A:
capillaries
Q: Answer the following question given this paragraph: The kidneys also secrete hormones that help maintain homeostasis. For example, they produce a hormone that stimulates bone marrow to produce red blood cells when more are needed. They also secrete a hormone that regulates blood pressure and keeps it in a normal range. Q: What organs secrete hormones that help maintain homeostasis? Choices: - the digestion organs - the lungs - the gonads - the kidneys A:
A: the kidneys
Question: Answer the following question given this paragraph: Eris is the largest known dwarf planet in the solar system. It is 27 percent larger than Pluto ( Figure above ). Like Pluto and Makemake, Eris is in the Kuiper belt. But Eris is about three times farther from the Sun than Pluto. Because of its distance, Eris was not discovered until 2005. Early on, it was thought that Eris might be the tenth planet. Its discovery helped astronomers realize that they needed a new definition of "planet. " Eris has a small moon that orbits Eris once about every 16 days. Q: What large dwarf planet in our solar system was only discovered in 2005? Choices: - artemis - Cerus - zeus - eris A:
Answer: eris
*Question*
Answer the following question given this paragraph: The jointed appendages of arthropods may be used as legs for walking. Being jointed makes them more flexible. Try walking or climbing stairs without bending your knees, and you'll see why joints are helpful. In most arthropods, the appendages on the head have been modified for other functions. Figure below shows some of head appendages found in arthropods. Sensory organs such as eyes are also found on the head. Q: What might arthropods use as legs for walking? Choices: - antennae - flagella - cloven hooves - jointed appendages A:
**Answer**
jointed appendages
Q: Answer the following question given this paragraph: Q: What might eventually happen to a species if it is unable to reproduce? Choices: - natural selection - migration - adaptation - extinction A:
A: extinction