September 24, 2019

The processes of diffusion and active transport are both used to

  1.  break down molecules to release energy

  2.   move molecules into or out of cells of the


  3.   bring molecules into cells when they are

    more concentrated outside of the cell

  4.   move molecules against a concentration

    gradient, using ATP molecules

Answer: Choice 2 is the correct answer

Explanation: Diffusion is the passive movement of pa...

September 16, 2019

Living Environment Regent August 2019

Base your answers to questions 36 through 39 on the information and photograph below and on your knowledge of biology.

Scientists Investigate Sex Determination in Alligators

The sex of some reptiles, including the American alligator, is determined by the temperature at which the eggs are incubated. For example, incubating them at 33°C produces mostly males, while incubation at 30°C pro...

September 13, 2019

Which group of organisms in an ecosystem fills the niche of recycling organic matter back to the environment?

August 2019 Biologu Regent Exams

(1) carnivores

(2) decomposers

(3) producers

(4) predators

Answer and Explanation:

In order for us to determine the correct answer, we need to know the definitions for each one of the answer choices. 

Carnivores are organisms that eat other animals. Examples of carnivores are lions and l...

March 14, 2018

A cell nucleus is a membrane enclosed organelle found in eukaryotic cells. Nucleus contains all of the genetic information a cell has, in the form of DNA. It also contains various proteins. For example proteins, histones, are what DNA strands wrap around to form chromosomes. Furthermore, both DNA replication as well as transcription happens in the nucleus. Transcription is the process of creating RNA from DNA template....

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