Cells
What organelles are only in plant cells?
cell wall and cholorplasat
How are Independent variables different from dependent variables?
IV: is what the scientist changes
DV: is what is being measured
how can humans impact an ecosystem?
deforestation
What is a disadvantageous trait?
a characteristic of an organism that reduces its chances of survival and reproduction in a specific environment.
what is the variation within a gene called?
allele
How are prokaryotes and eukaryotes different?
prokaryotes have no membrane bound organelles while eukaryotes have membrane bound organelles. eukaryotes are single or multi celled. prokaryotes are single celled.
What is a constraint or limitation in an experiment?
Any factor that restricts the scope, feasibility, or validity of the research
How can environmental factors influence gene expression?
Environmental factors significantly influence gene expression, a process known as epigenetics. These factors, like exposure to pollution, chemicals, and even lifestyle choices, can alter how genes are activated or silenced without changing the underlying DNA sequence.
What is evolution?
The traits are advantageous are passed down to the next generation.
What can cause a mutation?
radiation, spontaneous, changes in the DNA sequences
what is a karyotype?
visual appearance of a chromosome
What is a constraint in the state lab for the birds?
We were unable to drop the clay balls from the 3 meter height.
why do coral reefs bleach?
when they are under stress they release zooanthelae
how are genetic engineering and selective breeding different?
genetic engineering change the DNA while selective breeding you are choosing the desirable traits to reproduce
How are proteins synthesized?
DNA is transcribed into mRNA to amino acid called translation then build proteins.
what are the first 22 pairs of chromosomes in a karyotype called?
autosomes
how are correlational and causation different?
Correlation describes a relationship between two variables where they tend to change together, while causation means that one variable directly affects the other. Correlation doesn't imply causation; it simply indicates an association, whereas causation suggests a cause-and-effect relationship
How is a food web different from a food chain?
A food chain is a simple, linear pathway showing the flow of energy from one organism to another, while a food web is a complex network of interconnected food chains showing multiple pathways of energy transfer within an ecosystem
Why is there a lack of diversity when a species is endangered?
Not a lot of diversity in the gene pool lead to disadvantagous traits and mutations.
What is a nucleotide of DNA?
phosphate, sugar and nitrogen base
What is the chromosomal combination for a biological male and female?
male XY female XX
Determine the IV:
The effect of the amount of sunlight on the germination rate
iv: amount of sunlight
How can limiting factors influence carrying capacity?
Depending on limiting factors such as number of predators, amount of food and availability of water will influence amount of organisms that survive in an area (carrying capacity)
How does comparative anatomy and vestigial structures demonstrate the process of evolution?
demonstrate how species are related and how traits have changed over time. By comparing the anatomical structures of different species, scientists can identify similarities and differences that reveal shared ancestry and evolutionary adaptation. Vestigial structures, which are reduced or non-functional remnants of structures found in related species
What is the difference between phenotype and genotype?
phenotype is what it looks like while genotype is the genes