What differ strongly in appearance and are barrel shaped?
Options:
- (A) bears
- (B) barnacles
- (C) abdomens
- (D) oxen
- (E) Leptospirosis
- (F) cacti
- (G) burrs
- (H) tunicates
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Let's think first: Adult tunicates are barrel-shaped. Tunicates differ strongly in appearance between the adult and larva. Tunicates differ strongly in appearance and are barrel shaped.... So the answer is [(H)]

What can develop into new haploid individuals without being fertilized?
Options:
- (A) bacteria
- (B) alpacas
- (C) parasites
- (D) Candida
- (E) cows
- (F) insects
- (G) orchids
- (H) ferns
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Let's think first: Fungi spores can develop into new haploid individuals without being fertilized. Candida and Aspergillus are types of fungi. Spores of Candida and Aspergillus can develop into new haploid individuals without being fertilized.... So the answer is [(D)]

Adult sponges produce sperm and what other sex cell?
Options:
- (A) testicles
- (B) it needs them
- (C) gastropod shells
- (D) fertile
- (E) testosterone
- (F) zygotes
- (G) female gametes
- (H) barnacles
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Let's think first: Adult sponges produce eggs and sperm. Each ovule usually contains one egg , the female gamete or sex cell. Adult sponges produce female gametes and sperm.... So the answer is [(G)]

What breaks up into two lighter elements when an animal divides into two parts?
Options:
- (A) the blood cells
- (B) the heart
- (C) Energy.
- (D) the main element
- (E) heat energy
- (F) light energy
- (G) the nucleus
- (H) sensory neurons
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Let's think first: Fission takes place when an animal divides into two parts. If the nucleus breaks up into lighter elements, it is called fission . The nucleus breaks up into lighter elements when an animal divides into two parts.... So the answer is [(G)]

What do animals do in the winter?
Options:
- (A) Release energy
- (B) running and lifting
- (C) it keeps an organism warm
- (D) adapt to warm weather
- (E) adapt to extreme heat
- (F) adapt to coolness
- (G) shed fur
- (H) by making heat
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Let's think first: Animals adapt to cold temperatures. Temperatures are moderate in summer and COLD in winter. Animals adapt to the coolness in the winter.... So the answer is [(F)]

What are bird beaks often adapted to eat?
Options:
- (A) moles.
- (B) fish
- (C) nests
- (D) chicks
- (E) trees
- (F) apples
- (G) edible
- (H) Fruits
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Let's think first: Bird beaks are generally adapted for the food they eat. Birds eat the fish, algae and human food. Bird beaks are often adapted for eating fish.... So the answer is [(B)]