Mitosis/Meiosis
Heredity
Theory of Evolution
Ecology
The Cycles and Biodiversity
200

Place the following stages of mitosis in order:

-Metaphase

-Prophase

-Cytokinesis

-Telophase

-Interphase

-Anaphase

The stages of mitosis in order are:

1. Interphase

2. Prophase

3. Metaphase

4. Anaphase

5. Telophase

6. Cytokinesis

200

What are the 3 parts of a nucleotide?

Nitrogenous base, pentose sugar, and a phosphate group.

200

How do anatomical similarities support the theory of Evolution?

Anatomical similarities between organisms support the idea that organisms all evolved from a common ancestor.

200

What's the difference between biotic and abiotic factors?

Abiotic factors are non-living chemical and physical factors in the environment that affect ecosystems. While, biotic factors are living components of an ecosystem.

200

A cycle that's fueled by photosynthesis and transport, that exchanges carbon among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere.

The Carbon Cycle

300

Which process makes somatic cells?

Mitosis

300

Name the two nitrogen bases in DNA and what they bond to

Adenine is paired to thymine and guanine is paired to cytosine

300

Explain geographic and reproductive isolation. 

Geographic isolation is when biological populations of the same species become isolated from each other to the extent that it interferes with the geneflow. Reproductive isolation is where different species might live in the same area, but the properties of individuals prevent them from interbreeding. 

300
A long-term biological interaction in which members of one species gain benefits while those of the other species neither benefit nor are harmed is known as _____.

Commensalism

300

This cycle is when nitrogen is converted to several chemical forms as it circulates among the atmosphere, terrestrial, and marine ecosystems.

The nitrogen cycle

400

This cell contains two complete sets of chromosomes, one from each parent

Diploid

400

What is the difference between genotype and phenotype?

The genotype is the set of genes an organism carries. The phenotype is all of the observable characteristics it has.

400

What can we infer from fossil records? Where do you find the oldest/youngest fossils?

By studying the fossil record we can tell how long life has existed on Earth and how different organisms are related to one another. Rocks that are stacked in layers have the oldest rocks further down and the younger stacks toward the top.
400

What is known as a symbiotic relationship between species where one organism, the parasite, lives on or in the other organism, the host, causing the host some harm and is adapted to this way of life.

Parasitism

400

This is the level an organism lies on the food chain

Trophic level

600
If an organism has 18 chromosomes, how many would each cell contain at the end of mitosis and meiosis? How many daughter cells would be made as a result?

Mitosis: 36 were made as a result at the end, with 36 as a result.

Meiosis: 9 were made as a result at the end, with 18 as a result.

600

Where is DNA found in a prokaryotic cell or eukaryotic cell?

In eukaryotic cells, DNA is found in the nucleus. In prokaryotic cells, DNA is found in the cytoplasm in areas of the cytoplasm called the nucleoid.

600

How are variations and natural selection related?

Genetic variation is essential for natural selection because natural selection can only increase or decrease the frequency of alleles that already exist in the population.

600

What is known as the ecological interaction between two or more species where each species has a net benefit.

Mutualism

600

This cycle consists of the continuous movement of water on, above, and below the surface of the Earth.

The Water Cycle

800

This cell has a single set of unpaired chromosomes

Haploid

800

What's the difference between homozygous and heterozygous?

Homozygous means two copies of the same allele (either 2 dominants or 2 recessives), while heterozygous has one dominant and one recessive allele. 

800

Explain descent with modification

The mutation of genes into other forms as a result of natural variation, occurring when the offspring's genetic information is first generated, rather than over a lifetime of mutation.

800

What role do decomposers play in the environment?

Decomposers break down dead organisms and recycle the nutrients.

800

Name 2 of 4 threats to biodiversity

The 4 threats to biodiversity are:

1. Climate Change

2. Habitat loss and degradation

3. Pollution

4. Invasive Species

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