Across
- 4. animals that have a backbone inside their body
- 8. hard covering that supports and protects the bodies of some types of animals
- 9. Bladder-a gas-filled organ in bony fish that helps regulate buoyancy, allowing them to maintain depth without expending energy on swimming
- 12. arrangement of body parts around a central axis, like rays on a sun or pieces in a pie
- 13. in biology refers to a lack of balanced proportions or a lack of mirror-image symmetry, where one side of a structure or organism differs from the other
- 14. form of asexual reproduction in which a new individual develops from some generative anatomical point of the parent organism
- 15. Eggs-specialized eggs with extra-embryonic membranes that allow for terrestrial reproduction and embryonic development, providing protection, nourishment, and gas exchange
- 17. a type of cnidarian with a body structured like an umbrella in biology
- 19. Vascular System- a hydraulic system used by echinoderms, such as sea stars and sea urchins, for locomotion, food and waste transportation, and respiration
- 20. organism (plant or animal) having both male and female reproductive organs
Down
- 1. sessile, cylindrical body form found in the phylum Cnidaria, such as sea anemones and corals, with a mouth surrounded by tentacles
- 2. temporary organ that develops in the uterus during pregnancy, providing a vital connection between the mother and growing fetus
- 3. invertebrate is a cold-blooded animal with no backbone
- 5. that rely on external sources of heat to regulate their body temperature, rather than generating heat internally like endotherms
- 6. -an internal skeleton composed of hard, mineralized tissue that also enables movement by attachment to muscles
- 7. Glands-are exocrine glands in mammals, specifically modified sweat glands, that produce milk to nourish young offspring
- 8. to organisms, particularly mammals and birds, that maintain a constant internal body temperature through internal metabolic processes, rather than relying on external sources of heat
- 10. Symmetry-describes an organism's body plan where a single plane (the sagittal plane) divides it into two mirror-image halves, resulting in distinct left and right sides, a front (anterior) and back (posterior) end, and a top (dorsal) and bottom (ventral) surface
- 11. bottom layer of a body of water (like an ocean, lake, or river) and the organisms that live on or in the sediment.
- 16. strong, flexible connective tissue that protects your joints and bones
- 18. shedding or casting off of an outer layer or covering and the formation of its replacement