In the cross-section of a kidney, there are three main regions that become apparent. The outer region is called the "renal cortex", this is where the capillaries are mainly located. The deeper and darker region, that looks like small pyramids arranged in a semicircle is called the "renal medulla", where the filtering of the blood takes place. The flat, tube-like structure is called the "renal pelvis".
Pretty sure the answer is D
Is a substance that speeds up a chemical reaction, but is not consumed by the reaction
Answer:
Okay. Adelie penguin, Crabeater (?) seal and emperor penguin = krill
Leopard Seal, Weddell seal = fish
Toothed whales will eat a lot of stuff, it's a genus, but a common food is = squid
Baleen (?) whale = phytoplankton, other zooplankton
Parasite or host... Whales have barnacles but that's is the only "host" on this list. I listed food by matching the predators to prey in the list, sorry if it doesn't help, maybe be more clear?
The frequency will be one in a ten thousand, in a real life situation. The X-linked recessive disorder has the same frequency as that of its frequency in the men. The frequency in women is close to zero, and in 5000 men, it will be one, so in total, the allele frequency will be 1/10000.
When we use a Punnett sqare, it comes out that 0% of the females will have he disease. But, as 50% of the eggs of the mother will carry a recessive allele, 50% of the male offprings bear the cahnces of being affected, i.e., 25% of the total offsprings, which mean 2500 male children bear the chance of having Hemophilia.