In a scientific expeiriment, how many independent variables should be tested at the same time

In both bergmann's and allen's rules, surface area plays a major role in how heat is conserved or dissipated. what happens in animals with greater surface area?

Which is true about what models allow us to do to the system being studied? A) Increase the amount of waste produced. B) Decrease what we learn about a system. C) Decrease the amount a system is studied.

The bodies of multicellular fungi are composed of chitin. True or False

Which of the following statements is NOT true of protists? Protists can be single-celled or multicellular. Protists can be prokaryotes or eukaryotes. Protists can be autotrophs or heterotrophs.

Identify the common use of each tool used by space scientists and earth scientists

Match the term to its description. Match Term Definition Astronomical body A) A celestial object consisting of a nucleus of ice and a stream of gas and dust Galaxy B) A system of stars held by gravitational attraction Comet C) An object in space

How does meiosis most benefit a species?

What is the least common multiple for 8,27, and 35?

Students were tasked with developing a model of how pesticide resistance is developed in a population of farming pests. Each student submitted the scenario they would model to their teacher.

Which organs are responsible for producing fluid to give sperm nourishment and motility? a) vas deferens b) testes c) seminal vesicles d) prostate glands