The midpiece of the mature sperm contains mitochondria that provide metabolic energy for the trip to the egg. fructose (simple sugar) is used as fuel by the sperm. from where is this fructose secreted?

Large intestine anatomy what is the correct order for the list of structures of the large intestine, starting at the cecum and ending at the rectum? a. left colic flexure b. ascending colon c. transverse colon d. right colic flexure e.

Why are fossils generally going to be more useful for studying animals that lived in or near water (e. g., streams, lakes, oceans, etc.) ?

Conclusion is unacceptable because no control was established for the observation.

Which of the following best describes the shape of a DNA molecule? A. Two strands of nucleotides bonded together at their bases, twisting to form a double helix B. A single strand of nucleotides bonded together and twisted, forming a sphere C.

The diagram shows a model of DNA. Which part of the DNA molecule codes for the amino acid sequence in the protein?

A dam is built in a remote area to provide electricity to nearby towns. What is an unlikely effect of the dam?

What is true of mass extinctions? A All life on Earth dies when a mass extinction happens B In each mass extinction, over 50% of animal species died. C Mass extinctions happen frequently. D There is no evidence for past mass extinctions.

What is the web like structure in the cell during division

What sensitizes an individual to an allergen?

How can a trait decrease an organism's chance of survival in a specific environment?