science regents

Blood clotting

Positive feedback loop

Positive feedback loop

The initial change is amplified

DNA: A-T G-C RNA:

A-U G-C

A population of organisms with similar phenotypes that interbreed

Species

A solution that contains less solutes than inside the cells

Hypotonic

The backbone of the DNA molecule are made up of

Sugars and phosphates

Which organs will identify a change in blood volume?

Brain and kidneys

Female chromosomes

XX

Make chromosomes

XY

Homozygous recessive

gg

Homozygous dominant

GG

A solution that contains the same amounts of solutes as the inside the cell is called..

Isotonic

DNA is made up of

Nucleotides

What is the main reservoir for carbon?

Rocks

Diffusion

High concentration —> low concentration

Diploid human cells:

46

RNA to Protein is called

Translation

Feedback loops

A way for the body to maintain homeostasis

Useless body parts that no longer have a function in an organism

Vestigial structure

First step of cell division, nuclear membrane breaks down

Prophase

The middle stage of cell division, chromosomes line up, spindle fibers attach to the center of each chromosome

Metaphase

The stage of cell division where the duplicated chromosome are pulled apart and move toward opposite sides of the cell

Anaphase

Last stage of cell division, two new nuclei form the cell prepares to split in two

Telophase

2n, 2 complete sets of chromosomes, chromosomes exist in homologous pairs, somatic cells, total chromosomes: 46, produced via mitosis

Diploid

N, one complete set of chromosomes, chromosomes are unpaired, gametes, total chromosomes: 23 (no pairs), produced via meiosis

Haploid

Genotype

Genetic makeup

Phenotype

The observable characteristics of an orgsnism

Make their own food via photosynthesis

Primary producers

Herbivores that eat the producers

Primary consimers

Carnivores or omnivores that eat primary consumers

Secondary consumers

Carnivores that eat secondary consumers

Tertiary consumers