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Biology

Elephantiasis is an infectious disease in which blockage of the circulatory system by microscopic, parasitic roundworms results in a dramatic swelling of the tissues in the lower half of the body. What region is most likely blocked by these small, thread-like worms?

What is the arrow labeled X pointing to? (see attached screenshot) adenine thymine cytosine guanine

Rabbits are members of a community in a meadow. The rabbits eat grasses, clover, as well as roots, seeds, and tree bark. What defines the organisms that share the same trophic level as the rabbits? A. snakes, hawks, and other animals that eat rabbits B. community members that interact with rabbits C. meadow animals that are about the same size as a rabbit D. meadow animals that eat plants and plant products

Where are sperm cells created?

Outbreak of disease in the community in excess the normal 
expectation is:
a. Epidemic b. Pandemic c. Sporadic d. Endemic 

When zebrafish eggs are laid, they are surrounded by a tough chorion. Sperm are unable to get through this chorion and must find the tiny tunnel called a micropyle that provides a channel to the egg cell membrane. This channel is so tiny that only one sperm is able to fit through at a time. The micropyle most likely Aids in preventing polyspermy.

In an alternate version of the universe, the earth rotates around its axis at the same speed with which it revolves around the sun (ie. 365 of our days for one rotation/r). Think about what this means for the time period of day and night in "alter-Earth". What would be the approximate value of the period of the rhythm that would evolve in most species in this world? a. 365 days b. 182.5 days c. 730 days d. There will be no rhythms based on the light cycle

Two pure lines of four-o'clock plants, one with red flowers and the other with white flowers, are crossed. The F1 progeny all are pink. When these are selfed, the F2 progeny are 25 percent red flowers, 50 percent pink flowers, and 25 percent white flowers. This is an example of____________.

Which is a homologous structure to the human forearm? O A. The skull of a raccoon O B. The tail of a dog O C. The leg of a horse O D. The beak of a bird SUNIT

Give an example of a 'baleen skimmer'

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