Barnacles are crustaceans that live in the ocean. Barnacle larvae are motile and secrete a sticky substance that allows them to attach to a suitable substrate. As they mature into sedentary adults, they secrete layers of calcium carbonate that serve as a protective covering. Some barnacles have been known to attach to the sides of whales. This benefits the barnacles in that they are constantly transported to locations with new sources of food. The whales neither benefit nor are harmed by the presence of barnacles. Barnacles follow r selection strategies. Which of the following is not accurate of barnacles based on this information? a) High fecundity b) Extensive parental care c) Early maturation d) Short lifespan

Barnacles are crustaceans that live in the ocean. Barnacle larvae are motile and secrete a sticky substance that allows them to attach to a suitable substrate. As they mature into sedentary adults, they secrete layers of calcium carbonate that serve as a protective covering. Some barnacles have been known to attach to the sides of whales. This benefits the barnacles in that they are constantly transported to locations with new sources of food. The whales neither benefit nor are harmed by the presence of barnacles. Barnacles follow r selection strategies. Which of the following is not accurate of barnacles based on this information? a) High fecundity b) Extensive parental care c) Early maturation d) Short lifespan

Aquaculture Science

3rd Edition

ISBN:9781133558347

Author:Parker

Publisher:Parker

Chapter9: Fundamentals Of Nutrition In Aquaculture

Section: Chapter Questions

Problem 5SA

See similar textbooks

Similar questions

Barnacles are crustaceans that live in the ocean. Barnacle larvae are motile and secrete a sticky substance that allows them to attach to a suitable substrate. As they mature into sedentary adults, they secrete layers of calcium carbonate that serve as a protective covering. Some barnacles have been known to attach to the sides of whales. This benefits the barnacles in that they are constantly transported to locations with new sources of food. The whales neither benefit nor are harmed by the presence of barnacles. Barnacles follow r selection strategies. The calcium carbonate covering that protects barnacles is an adaptation that probably evolved as a result of what type of pressure? a) Density independent b) Predation c) Biotic d) Facultative symbiosis
Barnacles are crustaceans that live in the ocean. Barnacle larvae are motile and secrete a sticky substance that allows them to attach to a suitable substrate. As they mature into sedentary adults, they secrete layers of calcium carbonate that serve as a protective covering. Some barnacles have been known to attach to the sides of whales. This benefits the barnacles in that they are constantly transported to locations with new sources of food. The whales neither benefit nor are harmed by the presence of barnacles. Barnacles follow r selection strategies. How would the interaction between barnacles and whales be described? a) Commensalism b) Competition c) Mutualism d) Parasitism
As human activities put more and more carbon dioxide (CO2) into the air, the ocean takes up more CO2 and becomes increasingly acidic. Increased ocean acidity makes it more difficult for marine animals to produce their calcium-rich hard parts. List three types of invertebrates that are likely to be adversely affected by an increase in ocean acidity.
O They are considered plant parasites. Barnacles are crustaceans that live in the ocean. Barnacle larvae are motile and secrete a sticky substance that allows them to attach to a suitable substrate. As they mature into sedentary adults, they secrete layers of calcium carbonate that serve as a protective covering. Some barnacles have been known to attach to the sides of whales. This benefits the barnacles in that they are constantly transported to locations with new sources of food. The whes neither benefit nor are harmed by the presence of barnacles. Barnacles follow r selection strategies. How would the interaction between barnacles and whales be described?" O Commensalism O Mutualism O Competition O Parasitism Sea otters. Enhydra lutris. are predators of sea urchins, Strongylocentrotus
4) Animals that undergo ecdysis, or molting, include nematodes and arthropods. Why do these animals molt? Group of answer choices shedding the exoskeleton allows the animal to move faster to escape predators the exoskeleton prevents them from obtaining oxygen their outer covering is made of a non-living substance shedding the exoskeleton makes the animal smaller, which makes it easier for the animal to hide from predators in crevices
Due to human activities more carbon dioxide (CO2) is dissolving into the air, the ocean takes up more CO2 and becomes increasingly acidic. Increased ocean acidity makes it more difficult for marine animals to produce their calcium-rich hard parts. Explain three types of invertebrates that are likely to be adversely affected by an increase in ocean acidity.
Beavers are nocturnal and therefore, eat mainly during the night. Beavers normally eat the bark of trees, leaves, twigs, lily roots and the buds of deciduous trees. How do the claws of the beaver help it to compete for its food? A) The beaver's claws help it to dig holes to search for animals hiding underground. B) The beaver's claws help it to hide its face when predators are near. C) The beaver's claws help it to feel for food in the grass in the darkness of the night. D) The beaver's claws help it to climb high into trees to obtain its food.
Earthworms move through coordinated and peristaltic contractions of their body wall muscles. When the circular muscles within a segment contract... the coelom gains volume the segment gets narrower the segment gets shorter the worm moves backward the coelom reduces in volume
Which of the following not only increases surface area for nutrient absorption, but also slows down passage of food through the digestive system to allow for a longer time for absorption? the glomerulus the endostyle the amphibian typhlosole the spiral valve the columella O the pneumatic duct
Explain mode of transmission for Guinea Worm Disease (Dracunculus medinensis). Go into some detail about the IH, the copepod. In some parts of Africa, guinea worm occurs in some pretty dry areas which raises the question of why we still see high transmission rates when there is so little water.
Burrowing into the sediment and pulling in seawater to filter out the food (like clams do) is called carnivorous feeding O deposit feeding O suspension feeding detention feeding
Q1: What might happen to an anemone without a resident clownﬁsh? Q2: What would happen to a clownﬁsh that did not produce a mucous coating? Q3: In the example of mutualism given in the text, what would happen if ticks were no longer able to feed on bison?