20pts What statement about the inheritance of mitochondrial DNA is true?
A)The sperm cell donates most of the material in the cytoplasm to the zygote, including mitochondrial DNA.
B)The egg cell donates most of the material in the cytoplasm to the zygote, including mitochondrial DNA.
C)The sperm cell donates most of the DNA in the nucleus to the zygote, including mitochondrial DNA.
D)The egg and sperm cells contribute equal amounts of mitochondrial DNA to the zygote.

What element is able to combine with itself and hydrogen to form large molecules ?

Which of these is an example of land degradation? a. containers designed to store pollutants leak. b. fertilizers provide too many nutrients to crops. c. garbage is buried so the land can be reclaimed later. d. a drought kills all the plants in an area, leaving bare land

Refer to this portion of a dichotomous key for fish identification to answer the question. 1. (a) has a single dorsal fin ® 5 (b) has a double dorsal fin ® 2 2. (a) one fin is spiny, the other is smooth ® 3 (b) one fin is not spiny or smooth ® 4 5. (a) has small fin on back near tail ® 6 (b) has no fin on back near tail ® 7 6. (a) has barbs near the mouth ® catfish (b) does not have barbs near the mouth ® 10 7. (a) tail is asymmetrical ® 8 (b) tail is symmetrical ® 9 10. (a) scales are small ® trout (b) scales are large ® whitefish what is the next step to complete to identify a fish that has a single dorsal fin, no fin on the back near the tail, and no barbs near the mouth? step 2 step 5 step 7 step 10