The correct answer is: 4) Standing defenses are always present; induced defenses develop in response to a threat
Induced defense is defense that can be changed or invoked when needed. Induced defenses are slow to happen. When invoked, induced defense requires energy but otherwise doesn’t.
Standing defense is always there. It is use, for example when predation is a constant threat.
The population(s) would be hurt if bears were added as bears are omnivores.
<h3>How do bears get the strength vitamins they need?</h3>
Plant ingredients make up the bulk of a bear's diet – every so often as plenty as ninety consistent with cent. However, fish and meat are vital reassets of protein and fat, aleven though maximum non-coastal bears depend upon carrion (along with winter-killed animals
- The maximum usually eaten styles of flowers are fleshy roots, fruits, berries, grasses, and forbs. If bears are at the hunt, their prey can consist of fish (particularly salmon), rodents like floor squirrels, carrion, and hoofed animals like moose, elk, caribou, and deer.
- They are particularly exact at catching the younger of those hoofed species. Grizzly bears also can goal home animals like farm animals and sheep and reason economically vital losses for a few ranchers.
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Predation is a biological interaction where one organism, the predator, kills and eats another organism, its prey
Unduplicated chromosomes are single chromosomes with a single line strand and one DNA molecule (if that's what you are looking for).
The alveoli. These little air sacs are found on the end of the bronchioles and are the place where oxygen enters the blood and the carbon dioxide leaves.