Answer the following question given this paragraph: You've probably been using a ruler to measure length since you were in elementary school. But you may have made most of the measurements in English units of length, such as inches and feet. In science, length is most often measured in SI units, such as millimeters and centimeters. Many rulers have both types of units, one on each edge. The ruler pictured below has only SI units. It is shown here bigger than it really is so it's easier to see the small lines, which measure millimeters. The large lines and numbers stand for centimeters. Count the number of small lines from the left end of the ruler (0.0). You should count 10 lines because there are 10 millimeters in a centimeter. Q: What is the standard measurement for mass? A:

OPTIONS:
- volume
- calories
- BMI
- grams

Answer: grams

Problem: OPTIONS:
- dna
- hormone
- ribosomes
- auxin
Q: Answer the following question given this paragraph: Q: With what does cytokinins act in concert to stimulate cell division and influence the pathway of differentiation? A:
Answer: auxin

Problem:OPTIONS:
- nicotine
- caffeine
- adrenaline
- testosterone

Answer the following question given this paragraph: CHAPTER REVIEW 27.1 Anatomy and Physiology of the Male Reproductive System Gametes are the reproductive cells that combine to form offspring. Organs called gonads produce the gametes, along with the hormones that regulate human reproduction. The male gametes are called sperm. Spermatogenesis, the production of sperm, occurs within the seminiferous tubules that make up most of the testis. The scrotum is the muscular sac that holds the testes outside of the body cavity. Spermatogenesis begins with mitotic division of spermatogonia (stem cells) to produce primary spermatocytes that undergo the two divisions of meiosis to become secondary spermatocytes, then the haploid spermatids. During spermiogenesis, spermatids are transformed into spermatozoa (formed sperm). Upon release from the seminiferous tubules, sperm are moved to the epididymis where they continue to mature. During ejaculation, sperm exit the epididymis through the ductus deferens, a duct in the spermatic cord that leaves the scrotum. The ampulla of the ductus deferens meets the seminal vesicle, a gland that contributes fructose and proteins, at the ejaculatory duct. The fluid continues through the prostatic urethra, where secretions from the prostate are added to form semen. These secretions help the sperm to travel through the urethra and into the female reproductive tract. Secretions from the bulbourethral glands protect sperm and cleanse and lubricate the penile (spongy) urethra. The penis is the male organ of copulation. Columns of erectile tissue called the corpora cavernosa and corpus spongiosum fill with blood when sexual arousal activates vasodilatation in the blood vessels of the penis. Testosterone regulates and maintains the sex organs and sex drive, and induces the physical changes of puberty. Interplay between the testes and the endocrine system precisely control the production of testosterone with a negative feedback loop. Q: What is responsible for the physical changes of puberty? A:
****
A: testosterone

Answer the following question given this paragraph: Q: Hydrostatic skeletons are well suited for life in what kind of environments? A:
OPTIONS:
- pelagic
- bacterial
- surface
- aquatic
aquatic

Answer the following question given this paragraph: Living things must have chemical energy from food to power life processes. Most of the chemical energy in food comes ultimately from the energy in sunlight. Q: Most of food's chemical energy ultimately comes from what source? A:
OPTIONS:
- plants
- air
- minerals
- sunlight

Answer: sunlight

input with options: Answer the following question given this paragraph: Earth and the other planets in the solar system make elliptical orbits around the Sun. Q: What type of orbit do the planets make in the solar system? A:
OPTIONS:
- vertical
- conical
- figure eight
- elliptical
output:
elliptical