It would automatically be assumed that an earthworm does not have a exoskeleton because of the way they look and feel. They are very flexible and soft to the touch.
Root cells lack chloroplasts.Thats because they do not get light.
Nervous system, respiratory system, and circulatory system lack nephridia.
Proprioception
Lack of Oxygen.
Earthworms and cockroaches have nervous systems but no brain. Hydras have a nervous system consisting of a nerve net but lack a centralized brain. Amoebas do not have a nervous system or a brain.
amphibia
An earthworm and all insects are invertebrates because they lack an internal skeleton, especially because they don't have a backbone.Well to tell you an earthworm is an invertebrate.An earthworm is an invertebrate.
Root cells lack chloroplasts.Thats because they do not get light.
That it lacks an abdomen, antennae, compound eyes, exoskeleton, legs, and thorax is a reason why earthworms are not insects.Specifically, all insects have a body divided into a head, thorax and abdomen; compound eyes; an exterior skeleton; a pair of antennae; and three pairs of segmented legs. An earthworm is recognizable by its streamlined body which has muscles, segments and setae. It lacks antennae, jointed legs, and segmented body parts.
No, a cricket is not a vertebrate because it does not have a backbone and has an exoskeleton. Vertebrates have backbones. Invertebrates lack a backbone.
Lack of parental involvement would be parents that pay little attention to their children
No, crayfish are invertebrate animals, they do, however have an exoskeleton which makes up for the lack of a backbone.
No , cockroach lack back bone . It is insect not a vertebrate .
Nervous system, respiratory system, and circulatory system lack nephridia.
arthropods and mostly molluscas have exoskileton made up of chitin and calcium carbonate respectively
An earthworm's lack of appendages helps reduce drag as it moves through the soil, making burrowing more efficient. The worm's cylindrical shape also allows it to move easily through tight spaces underground. Additionally, the lack of appendages minimizes the risk of getting stuck in narrow tunnels.
Proprioception