She used to call me on my Cell-phone
This structure surrounds the cell and controls what enters and leaves; plant and animal cells both have it
cell membrane
Which body system transports oxygen, nutrients, and wastes and includes the heart and blood vessels?
circulatory (cardiovascular)
How many cards are in a standard deck of playing cards?
52
In asexual reproduction, offspring are usually genetically _______ to the parent
Identical
A mutation is any change in the _______ sequence
DNA
Name the organelle where energy (ATP) is produced; it's often called the "powerhouse" of the cell.
Mitochondria
Which body system includes lungs and helps exchange gases with the environment?
Respiratory
What occasion corresponds with the longest day of the year?
The summer solstice
What is the basic unit of heredity called?
DNA
Name a neutral mutation
EX: Freckles
What is the main difference between a prokaryotic and a eukaryotic cell?
prokaryotes lack nucleus/organelles; eukaryotes have nucleus/organelles
Explain how the nervous and circulatory systems work together to respond to a sudden danger
receptor senses danger → nervous system sends signal → heart rate increases → circulatory delivers oxygen to muscles.
What was the first animal to ever be cloned?
A sheep
State one advantage and one disadvantage of sexual reproduction compared to asexual reproduction.
advantage sexual: genetic diversity; disadvantage: needs two parents/longer.
Asexual advantage: fast, one parent; disadvantage: low genetic variation.
Explain the difference between a point mutation and a frameshift mutation in one or two sentences.
point mutation = single base change; frameshift = insertion/deletion shifts reading frame, often bigger effect.
Describe how the structure of a cell membrane helps it control movement of materials into and out of a cell
selectively permeable
What type of receptor detects chemicals in taste and smell?
chemoreceptors.
Which three zodiac signs are water signs?
Cancer, Pisces and Scorpio
If a parent is Heterozygous for dark hair and the other parent is Homozygous for light hair what percent of the offsprings will likely have light hair (dark hair is dominate)
50%
Explain why offspring from the same two parents are genetically different
Because they get 50% of DNA from each parent which makes different possibilities
Explain how specialized cells form tissues and organs, and give one example linking cell type → tissue → organ
example: muscle cell → muscle tissue → heart (explain specialization).
What happens if a single body system fails
Your other systems will try and pick up the slack but if they are unable to your body will slowly shut down
What name is singer-actor Stefani Germanotta better known by?
Lady Gaga
If one parent is heterozygous for a dominant trait (Aa) and the other is homozygous recessive (aa), what are the expected genotype and phenotype ratios of their offspring?
Punnett square Aa × aa → genotypes: 50% Aa, 50% aa; phenotypes: 50% show dominant trait, 50% show recessive trait