As energy moves through an ecosystem it is released as:
a. heat b. energy c. carbon
Conservation
100
What part controls what enters and leaves the cell?
Cell Membrane
100
One word describes the outward appearance of a trait and another word describes the actual alleles that some carries. What are the words?
Genotype, Phenotype
100
Which one is single stranded?
RNA
100
When did life first appear on earth?
a. 1 billion years ago
b. 200,000 years ago
c. 3.5 billion years ago
3.5 billion years ago
200
What is the original source of energy in a food chain?
Sun
200
Which part is responsible for packaging and labeling proteins?
Golgi Apparatus
200
What are the four different nitrogenous bases found in DNA?
Guanine, Thymine, Cytosine, Adenine
200
Where is RNA converted into amino acids?
Ribosome
200
Which of the following IS evidence for evolution?
fossils of ancient species
comparison of different climates
research from ancient manuscripts
fossils of ancient species
300
Create a food chain with four trophic levels.
grass - grasshopper - bird -- coyote
300
List three parts that are involved in protein synthesis.
ribosome, DNA, RNA, amino acids
300
What is the difference between meiosis and mitosis?
Meiosis creates sperm or egg cells with half of the original chromosomes and mitosis produces an exact copy.
300
List three difference between RNA and DNA.
RNA is shorter, single stranded, can leave the nucleus, used to make proteins.
DNA is what is passed onto offspring.
300
Give three pieces of evidence for evolution
fossil evidence, DNA evidence, fetal development of different animals.
400
Put the following in the correct order:
Kingdom, Order, Phylum, Family, Genus, Species, Class
Kingdom, Phylum, Class, Order, Family, Genus, Species
400
Write the four phases of mitosis in order?
Prophase, Metaphase, anaphase, Telophase
400
A shark has 44 chromosomes in a skin cell. How many will it have in a sperm cell?
22
400
What are the two main steps in protein synthesis? List them in order.
transcription and translation
400
List three factors that affect evolution:
limited resources, climate, genetic variability, ability to reproduce
500
Describe the carbon cycle. It starts where and ends where?
carbon dioxide, glucose, carbon dioxide
500
ATP creates energy when:
a. it loses a phosphate group
b. it adds a phosphate group
a. it loses a phophate group and becomes ADP
500
Black fur is dominant, brown fur is not. A homozygous recessive Rabbit has offspring with a heterozygous rabbit. What are the chances their offspring will have brown fur?
50% of the rabbits will have brown fur.
500
Give the three steps of DNA replication.
helicase unzips DNA
DNA polymerase adds nucleotides
strands are released to make 2 strand
500
List the order that organisms evolved. (animals, plants, eukaryotes, prokaryotes)