scope. will you be mine.

Which of the following statements about Adélie penguins are TRUE? Choose all that apply.

• They usually mate for life.

• They build nests.

• They live in the Arctic.

• They spend most of their lives on land.

• Both males and females care for developing eggs.

Why did the author include that information?

• to describe the lifespan of male nursery web spiders

• to explain how giving gifts helps male nursery web spiders survive

• to highlight how female nursery web spiders hunt

• to compare why spiders and humans give gifts

Which claim is BEST supported by the evidence scientists at Duke University recently collected about bonobos?

• Family members are important to bonobos.

• Bonobos prefer to eat together rather than alone.

• Bonobos are more likely to share food with strangers than with family members.

• Bonobos view food as a gift that must be shared.

Scientists think the male humpback dolphin’s gift-giving may be a show of strength. What is their reasoning?

• A) Sea sponges use toxins to defend themselves, so the dolphin must be tough enough to tolerate these irritating chemicals.

• B) Sea sponges are firmly anchored to the ocean floor, so the dolphin must use a lot of strength to remove them.

• C) Sea sponges are found deep underwater, so a dolphin must show that it can hold its breath for a long time to pick one.

• D) all of the above

Which of the following statements is supported by the details the author included about bowerbirds?

• Female bowerbirds dance for their mates.

• Male bowerbirds collect and cover their bowers with blue objects to find a mate.

• Female bowerbirds find mates that appear larger more appealing.

• Male bowerbirds whose bowers are surrounded by fewer items are more attractive to females.