RC4, Part 2

Multiple Choice

10A The fuzzy millipede, Polyxenus fasciculatus, is found in Texas and is preyed upon by most species of ants. To protect itself against the ants, it ejects fibers from a tuft located at the tail end of its body. The tufts have hooks at the tips and barbs along their length that lock and interlink with the ant’s setae, small hairs that cover the body of the ant. When an ant attacks, the millipede flexes its back end toward the ant and wipes the tufts against it. As the ant attempts to remove the tufts, it entangles itself more, becoming immobilized.

Which two systems most directly interact in the fuzzy millipede’s defense against ants?

• Muscular and integumentary

• Immune and muscular

• Integumentary and endocrine

• Endocrine and immune

Multiple Choice

10A: The female reproductive and endocrine systems work interactively for which main purpose?

• To maintain homeostasis by removing waste products from the body

• To release neurotransmitters during times of stress

• To control hormone levels to prepare the body for pregnancy

• To exchange gases to support cellular aerobic respiration

Multiple Choice

11A An individual who participates in a long-distance run on a hot day will produce large quantities of sweat. As a result of the excessive sweating, the amount of urine produced by the kidneys will change.

How will the kidneys respond to help the individual’s body maintain homeostasis?

• The kidneys will decrease urine production so the body can maintain blood pH.

• The kidneys will increase urine production to eliminate excess salt in the body.

• The kidneys will decrease urine production to allow the body to conserve water.

• The kidneys will increase urine production so the body can absorb more nutrients.

Multiple Choice

10A: How do the circulatory system and immune system work together to respond to an injury?

• Increased blood flow kills healthy cells which prevents infection at the site of injury

• Increased blood flow removes infected cells from the body at the site of the injury

• Increased blood flow carries white blood cells to the site of the injury

• Increased blood flow allows for an increase in the exchange of O₂ and CO₂ at the site of the injury

Multiple Choice

10A: This picture shows bean-shaped glands called nodes. The clusters of cells in nodes include macrophages that break down viruses and other potentially harmful materials. Nodes also contain cells that produce protein particles capable of capturing harmful materials that flow in tissue fluid through the nodes. Different parts of the body are drained by nodes in different regions of the body. Which body systems are directly responsible for regulating these nodes and protecting the body from harmful materials in tissue fluid?

• Immune and lymphatic systems

• Digestive and nervous systems

• Endocrine and digestive systems

• Circulatory and nervous systems

Multiple Choice

10B Gibberellins are hormones produced in the root tips of plants. The plant uses these hormones to stimulate the growth of shoots.How are gibberellins able to affect other parts of the plant?

• Gibberellins are absorbed through the stomata and attach to chloroplasts.

• Gibberellins are transported through vascular tissues to other parts of the plant

• Gibberellins become concentrated within the tissues of the plant during mitosis.

• Gibberellins become modified once they infect healthy cells and are later released to infect other cells.

Multiple Choice

10B: Plant roots have extensions called root hairs. These root hairs are important in the homeostasis of the plant. Which statement best explains the importance of the root hairs to the stems and leaves of the plant?

• Root hairs convert minerals into glucose for immediate use by cells

• Root hairs decrease the need for osmosis and diffusion in vascular tissue

• Root hairs prevent water loss in leaves through transpiration and gas exchange

• Root hairs increase the surface area of the roots for nutrient and water absorption

Multiple Choice

10B: A corn plant produces both male and females flowers. The male flower forms the tassel and the female flower forms the ear of corn. The silks that emerge from the ear are the stigma of the female flower. Each silk leads to an ovule that can become a corn seed. Which of these must happen for the corn seeds to develop on the ear?

• More tassels than silks need to be be present on the same plant

• Pollen grains must fall from tassels and land on the silks of the ear

• Pollen must be transported from the tassel to the silk through the phloem

• The tassels must come into direct contact with the silks of the ear.

Multiple Choice

10B: A student reads this advertisement for a produce containing a plant micro-nutrient that can be added to soil. Based on this information, the student can conclude that boron is absorbed by the plant roots from the soil and then:

• Transported to reproductive tissues by the plant's shoot system

• Stored in plant stems until the flowers are pollinated

• Concentrated in the roots until the plant's reproductive tissues mature

• Transported by the phloem to the stomata in leaves, where it attracts pollinators

Multiple Choice

10B Several structures work together to allow flowering plants to reproduce. The diagram shows a typical flower.

Which table correctly identifies the function of each structure or group of structures in the reproduction of the plant?

Multiple Choice

10B The mimosa plant displays thigmotropism by collapsing its leaves in response to touch, as shown in the pictures. The plant on the left is undisturbed. The upper stem of the plant on the right has been touched.

What is the most likely benefit of this mechanism for the plant?

• Protection from a loss of minerals to the environment

• Protection from poor light availability

• Protection from herbivores by becoming less attractive

• Protection from overwatering

Multiple Choice

10C Recent studies in bone research indicate that using ultrasound on a broken bone can decrease the healing time by 25%. Which of these are the most basic levels of organization involved when a bone heals?

• Cells and tissue

• Cells and organ system

• Organ system and organism

• Tissue and organ system

Multiple Choice

10C Which answer choice best describes a community

• Praying mantises caring for their young

• Three-spined sticklebacks living in estuaries

• Different species of lizards occupying the same niche in a desert

• Roosting mother bats recognizing their offspring

Multiple Choice

10C A science class is planning a field trip to a local farm that has a large pond. Which of the following lists the order of biological organization from smallest to largest that the students can expect to find at the pond?

• Organism, community, population, ecosystem

• Organism, population, community, ecosystem

• Population, organism, community, ecosystem

• Population, organism, ecosystem, community