Biology 1101, Self Test

The given answer includes animals that belong to the class Crustacea. Crustaceans are a diverse group of arthropods that typically have a hard exoskeleton, two pairs of antennae, and multiple pairs of legs. Crabs, lobsters, shrimp, and crayfish are all examples of crustaceans. They are characterized by their jointed appendages and are mostly aquatic animals.

The word "Nemotada" seems to be a misspelling of "Nematoda," which is a phylum that includes roundworms. Beetles belong to the phylum Arthropoda, and leeches belong to the class Hirudinea, which is a subclass of the phylum Annelida. Therefore, the correct answer is roundworms, as they are the only option that belongs to the phylum Nematoda.

The correct answer is "Nervous" because the nervous system of an arthropod includes a brain, a ventral nerve cord, and specialized sense organs. This system is responsible for processing information, coordinating movement, and detecting stimuli in the environment. The excretory system is responsible for removing waste from the body, the circulatory system transports nutrients and oxygen, and the digestive system breaks down food for absorption. Therefore, the nervous system is the most appropriate choice for the given statement.

Most newly hatched insects do not resemble their parents because the process of complete metamorphosis occurs. Complete metamorphosis is a type of development in insects where they go through distinct stages: egg, larva, pupa, and adult. In each stage, the insect looks different and has different behaviors and functions. This allows the insect to adapt to different environments and food sources as it grows. Therefore, the lack of resemblance between newly hatched insects and their parents is due to the process of complete metamorphosis.

Annelida is the correct answer because it is the phylum of segmented worms. This phylum includes various types of worms, such as earthworms and leeches, which have distinct body segments. Annelids are characterized by their segmented bodies, which provide flexibility and mobility. They also have a well-developed digestive system and a closed circulatory system. Therefore, Annelida accurately describes the phylum to which segmented worms belong.

The given answer correctly identifies the members of the Arachnida group, which includes spiders, scorpions, mites, ticks, and harvestmen. Arachnida is a class of joint-legged invertebrate animals that have two main body segments and four pairs of legs. They are distinct from social insects like crickets and grasshoppers, which belong to different groups. Therefore, the answer is accurate in listing the specific arachnids that are part of the Arachnida class.

This is the correct answer because it follows the sequence of complete metamorphosis, which is a four-stage process. In complete metamorphosis, an organism goes through distinct stages: egg, larva, pupa, and adult. The larva hatches from the egg and undergoes significant changes in its body form and structure during the pupa stage. Finally, it emerges as an adult with wings and reproductive capabilities. This sequence is commonly observed in insects like butterflies and beetles.

The correct answer is "Flatworms" because Platyhelminthes is the scientific name for flatworms. Flatworms are a type of invertebrate animals that have a soft, flattened body shape. They are characterized by their lack of a body cavity and their ability to regenerate lost body parts. The term "Platyhelminthes" is derived from the Greek words "platy" meaning flat and "helminthes" meaning worms, which accurately describes the physical appearance of these organisms. Therefore, "Flatworms" is the correct answer.

The correct answer is circulatory because the given information states that the earthworm's circulatory system consists of five simple hearts, a ventral vessel, a dorsal vessel, and smaller blood vessels. This indicates that the earthworm has a circulatory system responsible for pumping and transporting blood throughout its body.

The correct answer is "Contains 80% of all living animals." This statement is true because Arthropoda is a phylum that includes a vast number of animal species, such as insects, spiders, crustaceans, and more. It is estimated that arthropods make up around 80% of all known animal species on Earth. This phylum is incredibly diverse and successful, with members found in almost every habitat on the planet.

Earthworms are hermaphroditic, which means they have both male and female reproductive organs. This allows them to produce both eggs and sperm. Being hermaphroditic is advantageous for earthworms as it increases their chances of successful reproduction since they can mate with any other earthworm they encounter.

The given information mentions that Hymenoptera is a group that contains 90% of all living animals and that they are beetles. However, the correct answer is "Social Insects." This suggests that Hymenoptera refers to a group of insects that exhibit social behavior, such as ants, bees, and wasps, rather than beetles.

Crickets and grasshoppers are members of the Orthoptera order. This order is characterized by insects that have long hind legs adapted for jumping and producing sound through stridulation. Swimmerets and tubules are not specific characteristics of crickets and grasshoppers, so they are not the correct answer.

The earthworm's clitellum is responsible for secreting a protective cocoon into which its eggs are deposited. The clitellum is a specialized glandular structure located near the anterior end of the worm's body. During reproduction, it produces a mucus-like substance that forms a ring-shaped cocoon around the eggs and sperm. As the cocoon moves forward along the worm's body, it collects the eggs and sperm, eventually sealing off and providing a protective environment for the developing embryos.

Tapeworms are parasitic worms that live in the intestines of humans. They attach themselves to the intestinal wall and absorb nutrients from the host's digested food. Therefore, the correct answer is "Intestinal Tract".

This answer is correct because it accurately describes the life cycle of insects that undergo incomplete metamorphosis. In this type of metamorphosis, the insect goes through three stages: egg, nymph, and adult. The egg hatches into a nymph, which resembles a smaller version of the adult but lacks wings and reproductive organs. The nymph then goes through a series of molts, growing larger and developing wings and reproductive organs, until it reaches its final adult form. Therefore, the correct order is egg, nymph, adult.

Hirudinea is a class that refers to the group of organisms known as leeches. Leeches are segmented worms that are typically found in freshwater environments. They have a unique feeding behavior where they attach themselves to other animals and feed on their blood. This class is distinct from other classes such as marine worms and social insects, as it specifically refers to leeches.

During the larval stage of an insect, massive amounts of food are consumed, and thousands of dollars' worth of damage is done to crops. This is because larvae have a voracious appetite and need to eat a lot in order to grow and develop. They often feed on plants and crops, causing significant damage to agricultural fields. Larvae are usually the most destructive stage of an insect's life cycle in terms of crop damage.

Spiracles are openings found on the body of insects that allow them to breathe. They are part of the insect respiratory system. Through these tiny holes, air enters and exits the insect's body, delivering oxygen to their tissues and removing carbon dioxide. The spiracles are connected to a network of tubes called tracheae, which transport the air to different parts of the insect's body. This efficient respiratory system enables insects to obtain the oxygen they need for survival.

The given answer "Beetles" is correct because Coleoptera is the scientific name for the order of insects commonly known as beetles. The information provided in the question, such as "Part of insect's respiratory system" and "Egg, nymphs, adult," further supports this answer as it aligns with the characteristics and life cycle of beetles.

The correct answer is "Class containing marine worms." This is because Polychaeta is a class of segmented worms that are predominantly found in marine environments. They are characterized by their numerous bristle-like appendages called chaetae, which are used for locomotion and sensory purposes. Polychaetes play important roles in marine ecosystems as they are involved in nutrient cycling, sediment stabilization, and as a food source for other organisms.

Setae are bristle-like structures found on the body of an earthworm that aid in its movement. These tiny hairs provide traction and grip on the ground, allowing the earthworm to crawl and burrow through soil and other substrates. The setae anchor the worm's body to the surrounding environment, preventing it from slipping or sliding as it contracts and expands its muscles to move forward. Therefore, setae play a crucial role in facilitating the earthworm's locomotion.

The correct answer is "Primary" because tapeworms have a complex life cycle that involves multiple hosts. The primary host is the one in which the adult tapeworm lives and reproduces. In this host, the tapeworm produces eggs that are then passed out of the body through feces and can infect other organisms, known as intermediate hosts. Therefore, the primary host is crucial for the tapeworm's reproductive cycle.

The correct answer is "Cephalothorax". The cephalothorax is the fused head and thorax region of a spider's body. It contains the spider's eyes, mouthparts, and legs. The abdomen, on the other hand, is the posterior part of the spider's body where the organs and spinnerets are located.

Chelicerae are the mouthparts of a spider used for feeding and manipulating prey, not for sensory perception. The sensory system of a spider includes pedipalps, which are used for touch and taste, sensory hairs that detect vibrations and air currents, and simple eyes that detect light and movement. Therefore, the correct answer is Chelicerae.

Arachnids, such as spiders, scorpions, and ticks, breathe through specialized respiratory organs called book lungs. These book lungs are located in the abdomen and consist of thin, leaf-like structures called lamellae. Oxygen from the surrounding air diffuses into the lamellae and is then transported to the spider's cells for respiration. This adaptation allows arachnids to effectively obtain oxygen without the need for gills or other respiratory structures.

Insects have compound eyes, which are visual sense organs located on their heads. These eyes are made up of many individual units called ommatidia, each with its own lens and photoreceptor cells. This structure allows insects to have a wide field of vision and detect movement effectively. Compound eyes provide insects with a unique visual system that helps them navigate their surroundings, locate food, and identify potential threats.

The correct answer is "Class containing earthworms." Oligochaeta is a class of segmented worms that includes earthworms. Earthworms are characterized by their long, cylindrical bodies and the presence of setae or bristles on their segments. They are commonly found in soil and play a crucial role in soil fertility and nutrient cycling. Earthworms are also important decomposers, breaking down organic matter and enriching the soil with their castings.

The spider's prey is digested outside the body because spiders have external digestion. They inject digestive enzymes into their prey and then suck out the liquefied nutrients. This process occurs outside the spider's body, allowing them to break down their prey and absorb the nutrients more efficiently.

Please seperate your answers with commas and 1 space. Start off each word with CAPITAL LETTERS. Place answers IN ORDER.

Please seperate your answers with commas and 1 space. Start off each word with CAPITAL LETTERS. Place answers IN ORDER.

Please seperate your answers with commas and 1 space. Start off each word with CAPITAL LETTERS. Place answers IN ORDER.

The correct answer is Arthropoda Insecta. Insects belong to the phylum Arthropoda and the class Insecta. Arthropoda is the largest phylum in the animal kingdom and includes animals with jointed legs and exoskeletons. Insecta is a class within the phylum Arthropoda and includes animals with three body segments, six legs, and usually one or two pairs of wings. Insects are the most diverse group of animals on Earth, with over a million known species.

Seperate your answers with commas and 1 space. Start off each word with CAPITAL LETTERS Any order is fine.

Please seperate your answers with commas and 1 space. Start off each word with CAPITAL LETTERS. Place answers IN ORDER.

Please seperate your answers with commas and 1 space. Start off each word with CAPITAL LETTERS. Place answers IN ORDER.