Question

Standardized Test Practice Cumulative Multiple Choice 1. Which color of flower is most likely to attract noc 5. Which hormone stimulates the ripening of fruit? turnal pollinators such as bats and moths? A. auxin A. blue B. cytokinins B. red C. ethylene C. violet D. gibberellins D. white Use the diagram below to answer question 6 Use the illustration below to answer questions 2 and 3. 2. How would you describe the body symmetry of the animals shown in the above illustration? A. Both have bilateral symmetry. B. Both have radial symmetry. C. The sea star has bilateral symmetry and the bird has radial symmetry. D. The sea star has radial symmetry and the bird has bilateral symmetry. 6. At which stage of the fern life cycle does the chromo- some number change from haploid to diploid? A. 1 B. 2 C. 3 D. 4 3. How does the body shape of the sea star help with its Survival? A. It enables the sea star to capture many kinds of prey. B. It enables the sea star to capture prey from many directions. C. It enables the sea star to move through the water quickly. D. It enables the sea star to move through the water feebly. 7. Which is the role of sclerenchyma cells in plants? A. gas exchange B. photosynthesis C. food storage D. support 8. What evidence would help scientists determine that colonial organisms were an early step in the evolu- tion of multicellularity? A. similarities in DNA or RNA of early multicellular organisms and colonial unicellular organisms B. differences in DNA or RNA of early multicellular organisms and colonial unicellular organisms C. similarities of early multicellular organisms and present-day multicellular organisms D. differences between early multicellular organisms and present-day multicellular organisms 4. Which structure in nonvascular plants is similar to roots in vascular plants? A. chloroplast B. mucilage C. rhizoid D. sporophyte 722 Chapter 24. Assessment Biology Standardized Test Practice biologygmh.com

Answer 1

Ans. 1 .D

Nocturnal animals do not see color hence these flowere are not brightly coloured.They instead depend mostly on fraFrance

Ans. 2.D

Radial symmetryou is when the body of the organimal can be divided in any direction provided the line passes through the centre of its body

While in bilateral symmetry it can be dividentified in only one way

Ans.3 .B

The sea star has eyespot on it arms thus enabling it to capture prey from many directions.

Ans.4.C

Rhizoids are small hair like structure which anchor them to soil

Ans. 5.c

Ethylene is the hormone which signals the fruits to ripen

Ans.6.the diagram is not clear

Ans.7.D

They are strong thick cells which do not othere function ezcept for providing support

Ans.8.C similarities of early multicellular organisms and present day multicellular organisms

Ans.9.The following experiment shows phototrophism.the effect of auxin canot be seen

Ans.10.The fossils preserved in organic material preserve soft tissues

Ans.11.they live in moist areas to help in germination of spores

Ans.12.the age of the tree is determined by counting the number of cambial rings.these increase once in a year

The image is not clear

Ans.13.Following are the adaptationsame

1.they are brightly coloured

2.they provide nextra for the insectsame

3.they are fragrant

4.theye provide nutrition to the insects

Ans.14.homologous organs are an example thato shows that different looking organs have similar origin

Ans.15