HRS - Ask. Learn. Share Knowledge. Logo

Questions in biology

[Done] Fossils usually provide paleontologists with information about each of the following except an organism's: A) Structure B) Environment C) Way of life D) DNA Provide a few words of explanation.

[Done] In fruit flies, red eyes are dominant to green eyes. In a cross between a short-winged, green-eyed fly and a long-winged, red-eyed fly, the results were as follows: - 40 percent short-winged and red-eyed - 10 percent short-winged and green-eyed - 10 percent long-winged and red-eyed - 40 percent long-winged and green-eyed Which of the following reflects the chromosome makeup of the parents? A. LlRr × Llrr B. Llrr × llrr C. LlRr × llrr D. LLRR × llrr E. LlRR × llRr

[Done] Which term best describes the relationship between the leopard seals and crabeater seals? A. parasitism B. predation C. competition D. mutualism

[Done] Flowers of the orchid species *Ophrys bombyliflora* look and smell like female bumblebees. This attracts male bumblebees flying nearby to the flowers. As a result, pollen sticks to the head and abdomen of the bumblebee, leading to pollination. This orchid species is only pollinated by these bees, which is why the species is known as **bumblebee orchids**. What mode of evolution is represented by this example? A) Coevolution B) Punctuated equilibrium C) Adaptive radiation

[Done] What is another name for mosquitoes?

[Done] What is hybrid inviability? What is hybrid infertility?

[Done] Is the deer digestive system different from the human digestive system?

[Done] In human DNA, adenine (A) makes up approximately 30.9% of the bases, and guanine (G) makes up approximately 19.9% of the bases. Therefore, the percentage of thymine (T) and cytosine (C) are: A. 19.8% T and 19.8% C. B. 19.8% T and 29.4% C. C. 29.4% T and 19.8% C. D. 29.8% T and 29.8% C. E. 19.9% T and 30.9% C. Can you please explain with some details?

[Done] Based on figure 19-4, what is the student probably trying to test?

[Done] Are there more adults (18 or over) than kids in the world?