Answer the following statements true (T) or false (F)
1. A stigma is an organelle that pumps water out of the cell.
2. Sexual spores are also known as conidia.
3. Classification of fungi is based on the type of conidia that they produce.
4. Protozoa that move by means of pseudopodia are in a category known as Sarcodina.
5. Fungi can cause both infectious diseases and microbial intoxications.
1. FALSE
2. FALSE
3. FALSE
4. TRUE
5. TRUE
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Do mycorrhizal symbioses occur between fungus and non-photosynthetic plants?
A. Yes; non-photosynthetic plants also need minerals. B. No; non-photosynthetic plants cannot provide organic compounds to fungi. C. No; non-photosynthetic plants do not need phosphate. D. Yes; non-photosynthetic plants can generate organic compounds without photosynthesis.
Which value(s) would be required to calculate how long ago the most recent ancestor of ungulates lived?
I) the number of base pairs that differ among species in a certain genetic sequence II) the total number of base pairs in the genetic sequence examined III) the age of a fossil ancestor for calibration A) I B) II C) III D) I, II, and III
Homeostasis is a living organism's ______.
A. ability to maintain constant internal conditions even when environmental conditions change. B. attempt to cool off, even when it is cold outside. C. attempt to carry out photosynthesis even when there is no sunlight present. D. ability to hibernate during cold times of the year. E. ability to pump blood through the body.
Which of the following is the best interpretation of the graph below of mussel size (X-axis) versus energy gain (line graph, left Y-axis), and number of mussels eaten per day (histogram, right Y-axis)?
A. Crabs tend to consume most of the largest mussels. B. Crabs select mussels in a way that maximizes their energy gain. C. Mussels are selected as food sources by crabs. D. Mussel size does not seem to be a good predictor as to which mussel hungry crabs will select. E. Crabs prefer the mussels with the smallest length for their food resources.