For a pathogen to cause an infection, which of the following must be present?
What will be an ideal response?
The pathogen must be able to resist the defenses of the host
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Frogs, birds, rabbits and lizards all have different forelimbs, which makes sense when you consider their different lifestyles. Interestingly, all of their forelimbs share the same set of bones—the ulna, the radius, and the humerus
These same bones are also seen in fossils of the extinct animal Eusthenopteron, which demonstrates common ancestry among these four groups of animals. Hence, these forelimbs are an example of: A. analogies. B. homologies. C. similes. D. homilies.
Imagine that you want all of the orange trees in your orchard to uniformly flower and set fruit. Which
type of plant hormone should you spray on your plants?
a. brassinosteroids b. auxins c. ethylene d. salicylic acid e. cytokinins
What is the leading factor in the establishment of new kelp in an area?
a. Amounts of sunlight b. Type of substrate c. Density of herbivores d. Presence of nutrients
Cells in cartilage that produce ground substance are called ________
Fill in the blank(s) with correct word