Answers Science 7 B M12 2526 S2Cumulative Exam

Cumulative Exam — Cumulative exam Answers

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Mike has a problem with his testosterone. He is unable to produce enough.Which will most likely be affected by his inability to produce testosterone? Select two options.urine productionsperm productionproducing fluid to help sperm moveappearance of secondary sex characteristicsegg productionegg movement to the uterus

urine production

sperm production

producing fluid to help sperm move

appearance of secondary sex characteristics

egg production

egg movement to the uterus

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Which best describes the movement through the nephron?

Blood is passed into the nephron and removed through the urethra.

All materials that exit the blood into the nephron are removed in the urine.

Some of the materials that exit the blood can be returned to the blood.

High quantities of sugars and water are excreted in the urine.

Which change would be considered a short-term environmental change? Check all that apply.an ice agean El Niño storma small asteroid impacta tsunamimountain building

an ice age

an El Niño storm

a small asteroid impact

a tsunami

mountain building

When a person sees a doctor about a respiratory illness, the doctor will want to determine if the sickness is in the upper respiratory tract or the lower respiratory tract. The starting point for the lower respiratory system is the trachea.Which structures are part of the upper respiratory system? Select three options.the larynxthe bronchusthe alveolithe lungsthe pharynxthe nose

the larynx

the bronchus

the alveoli

the lungs

the pharynx

the nose

Which characteristics do all bony and jawless fish have in common? Check all that apply.backboneswim bladderscalesgillsbony skeleton

backbone

swim bladder

scales

gills

bony skeleton

Ingrid drew a diagram to compare two ways in which biodiversity can be protected.

has the goal of releasing animals in the wild

is often done in nature preserves

usually protects entire ecosystems

focuses on increasing the population of a single species

Which of the following best describes hair?

Hair is made of mostly tightly packed living cells.

Hair does not help control body temperature.

Hair growth occurs in the hair follicle.

Hair grows at 2.5mm a month.

The table shows four species that have had to make changes due to an environmental change.

The polar bear faced a long-term change.

The tree frog faced a short term change.

The dodo bird and tree frog faced long-term changes.

The armadillo and dodo bird faced short-term changes.

Which can be used to prevent initial entry of bacteria into the body?

inflammation

oil

fever

lymphocytes

The diagram shows a sponge.

providing protection from predators

fertilizing eggs

filtering and digesting food

stinging prey

Which line of defense includes active immunity?

first

second

third

fourth

A scientist is observing a gymnosperm. It is a desert shrub with needle-like leaves. The shrub has a deep root system and produces cones.Which gymnosperm is the scientist most likely observing?

She is observing a gnetophyte because, unlike other gymnosperms, gnetophytes can grow as shrubs in deserts.

She is observing a gnetophyte because, unlike other gymnosperms, gnetophytes can have needle-like leaves and deep root systems.

She is observing a ginkgo because, unlike other gymnosperms, ginkgoes can grow as shrubs in deserts.

She is observing a ginkgo because, unlike other gymnosperms, ginkgoes can have needle-like leaves and deep root systems.

A squid is shown in the diagram.

mantle

foot

radula

gill

Which statement best compares frogs and toads with salamanders?

Frogs and toads lose their tails as they develop into adults, but salamanders keep their tails.

Salamanders have lungs from the time they hatch, but frogs and toads have gills when they first hatch.

Frog and toad eggs are covered in a soft, jellylike substance, but salamander eggs are covered in a hard shell.

Salamander offspring are born with long legs that eventually shorten, but frogs and toads are born without legs.

Cheng made a chart to list the functions of certain fish structures. Which headings correctly complete the chart?

X: FinY: Swim bladderZ: Lateral line

X: FinY: Lateral lineZ: Swim bladder

X: Lateral lineY: Swim bladderZ: Fin

X: Lateral LineY: FinZ: Swim bladder

Gus drew a diagram to compare marsupial and placental mammals.

have a two-week gestation period

young develop inside body

sometimes lay eggs

are endotherms

Ladybug beetles chase, capture, and eat smaller insects called aphids.Which best describes this relationship?

It is parasitism. The ladybugs are the parasites and the aphids are the hosts.

It is parasitism. The ladybugs are the hosts and the aphids are the parasites.

It is predation. The ladybugs are the predators and the aphids are the prey.

It is predation. The ladybugs are the prey and the aphids are the predators.

Study the image of the plant shown.

vascular because it has spores

vascular because it has true roots

nonvascular because it has spores

nonvascular because it has true roots

How is a yeast similar to a bread mold?

Both have reproductive cells with flagella.

Both can reproduce sexually with spores.

Both are multicellular.

Both have hyphae.

Which describes a difference between bivalves and cephalopods?

Bivalves use tube feet for movement, and cephalopods use muscular feet for movement.

Bivalves live only in ocean environments, and cephalopods live in a variety of aquatic environments.

Bivalves use a radula to feed, and cephalopods use filter-like structures to feed.

Bivalves have an open circulatory system, and cephalopods have a closed circulatory system.

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