26-1 Introduction to the Animal Kingdom

Which statement best defines animals in Kingdom Animalia?

• Photosynthetic eukaryotes with chloroplasts

• Prokaryotic decomposers with peptidoglycan

• Multicellular heterotrophs lacking cell walls

• Unicellular autotrophs with rigid cell walls

Which animal tissue primarily covers body surfaces and forms linings?

• Muscle tissue in long fibers

• Connective tissue with minerals

• Nervous tissue with neurons

• Epithelial tissue forming sheets

What is the main function of muscle tissue in animals?

• Store calcium and produce blood cells

• Transmit electrical impulses across the body

• Enable movement by contracting cells

• Protect internal organs with layered cells

Which tissue type includes bone and blood as specialized forms?

• Muscle tissue for contraction

• Nervous tissue for rapid signaling

• Epithelial tissue for surface lining

• Connective tissue for support

Animals are classified as invertebrates when they lack which structure?

• Bilateral body symmetry

• A closed circulatory system

• A vertebral column or backbone

• Paired limbs for locomotion

Approximately what percentage of animal species are invertebrates?

• Roughly twenty percent globally

• About five percent worldwide

• Close to fifty percent overall

• More than ninety-five percent

Which comparison correctly describes vertebrates relative to invertebrates?

• Vertebrates lack endoskeletons entirely

• Vertebrates are always microscopic organisms

• Vertebrates possess a backbone structure

• Vertebrates are exclusively marine animals

Which characteristic is shared by all animals?

• They contain chloroplast organelles

• They feed on organic compounds for energy

• They have cellulose-based cell walls

• They produce sugars via photosynthesis

Which description best matches nervous tissue in animals?

• Fibers rich in actin enable contraction

• Matrix with minerals provides structural support

• Flat sheets of cells protect surface areas

• Cells with threadlike projections transmit information

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-3

Which statement best describes vertebrate.

• Prokaryotic with no cell wall

• Eukaryotic with a cell wall

• Prokaryotic with a cell wall

• Eukaryotic with no cell wall

Tags

NGSS.MS-LS4-2