Most minerals are absorbed in the intestines, and any excess is eliminated. True False
2. Why are errors in DNA replication common and difficult to prevent?
Predict what a marine biologist might look for on a dive. __
What is the function of the flagella and pill in prokaryotic cells? __
What does an enzyme do for a chemical reaction? speeds it up slows it down nothing
11. Which two domains consist of prokaryotic organisms? __ & __
When the concentration of molecules is the same on both sides of a membrane, what will the molecules do? Stop moving Move in one direction across the membrane Move in both directions across the membrane
Match the words to their definitions or examples Unicellular Bacteria Multicellular Plants and animals
What is an organism that breaks down organic matter (waste and dead organisms)and returns nutrients to the soil? Scavenger Decomposer Consumer Producer
What is the primary role of the plasma membrane in eukaryotic cells? To control cell division To create proteins To regulate entry and exit of substances To generate energy
Different forms of a gene controlling a particular trait are called - alleles hybrids punnetts zygotes
How can scientists use comparative anatomy? A. to understand the size between organisms B. to understand the climate in which organisms live C. to understand evolutionary relationships between organisms D. to understand the food chain order of organisms
7. Explain what the results show about the flow of energy in an ecosystem.
Where do you put the parents' genotypes when you're doing a Punnett Square? Inside the box Outside the box on the top and left
Which of the following structures detects changes in the environment and sends this information to the brain? Neurons Glial cells Hormones Sensory receptors
What is the primary role of the spinal cord in the nervous system? Storing sensory information Carrying messages between the brain and the body Producing hormones None of these
What is the primary purpose of packaging DNA into chromosomes during mitosis? A To prevent genetic mutations B To make DNA more compact C To allow DNA to move to opposite ends of the cell D To increase genetic complexity
In a species with a body cell having 6 chromosomes, how many chromosomes would be in the gametes after meiosis? A 3 chromosomes B 2 chromosomes C 6 chromosomes D 12 chromosomes
Which of the following best describes the process of transpiration? Water transforms from a liquid to a gas Plants release water vapor during photosynthesis and respiration Energy flow from one organism to another Bacteria perform nitrogen fixation
In the genetic code a sequence of three mRNA nucleotide bases that specifies a particular amino acid (or a stop signal)is known as a: Codon. Anticodon Gene.
