PLEASE HELP Penguins are unusual birds. They swim under water but do not fly. Penguins live in some of Earth's coldest climates, where they feed on sea animals. Unlike most birds, a penguin had solid bones. How does this adaptation aid a penguin in survivng?

A. The solid bones allow penguins to dive deep under water.

B. The solid bones allow penguins to detect fish under water.

C. The solid bones allow penguins to stay warm under water.

D. The solid bones allow penguins to hold its breath under water.

E. The solid bones allow penguins to fly higher than most birds.

Agroup of plant cells was exposed to radiation, which damaged the chloroplasts and caused them to lose function. if the mitochondria were unharmed, what would happen to the overall function of the plant cells? a. the cells would not be able to make food, but would be able to release energy from biomolecules. b. the cells would not be able to replicate dna, but would be able to break down waste. c. the cells would not be able to break down waste, but would be able to replicate dna. d. the cells would not be able to release energy from biomolecules, but would be able to make food.

Explain the cellular functions that occur when antibiotics attack a bacteria cell. a. antibiotics target the cell wall, cell membrane, and the processes of protein and nucleic acids production in bacteria to rupture the cell. b. antibiotics create dormant resistant endospores to preserve the genetic material and rupture the cell. c. antibiotics target the cell wall and form a bridge-like connection to form conjugation. d. antibiotics use binary fission to grow twice its size, replications its dna, and split into two cells.

Aragonite shells of clams, snails, or scleractinian corals may be preserved unaltered in cenozoic deposits, but they are generally dissolved or recrystallized in older deposits. true or false