What captures energy from sunlight during photsynthesis?
Vultures, which feed on the bodies of dead organisms, are ________
pair of nitrogen bases
Each rung of the DNA ladder is made of __________
Carbon dioxide enters plants through the _______
Which biome receives less than 25 ms of rain per year?
yeast and bacteria
In which of these does alcoholic fermentation occur?
During what stage of the cell cycle does re;lication occur?
What is copied during relication>
The first organism in a food chain is always a _________
The different forms of a gene are called _________
identical strands of chromosomes
What are chromatids?
Which ecosystem is found where the fresh water of a river meets the salt water of the ocean?
in the cytoplasm on a ribosome
Where does protein synthesis take place?
What do producers release as a result of photosynthesis?
purebred or homozygous
an organism that has two identical alleles for a trait is ___________.
two new nuclei
What forms around the chromatids during mitosis?
An organisms genotype is its_____
What factor may lead to almost as many cancer deaths as does tobacco?
The very slow movement of the continents is called ________
both dominant and recessive alleles
A heterozygous organism has _______
The stage of the cell cycle that follows mitosis is called _
wind, water, animals
Give 3 examples of dispersal.
The regular cycle of growth and division that cells undergo is called ___
Small openings called ___allow carbon dioxide to enter a leaf
Plants make their own food using energy that comes form the _____
it is warm, humid, and rainy
A large variety of plants grows in tropical rain forest because ___________
Amost all living things depend on the process of ________ to supply them with the energy they need
Bacteria and fungi are known as __________ because they break down the remains of organisms
During respiration, molecules of ________ are first broken down in the cytoplasm
Energy from glucose is released in the process of ______
The energy role of a grizzly bear is that of a _______ because it cannot its own food
The main difference between respiration and fermentation is that respiration uses _____ to obtain energy from food
A diagram called an__________ shows how much energy is available at each level of a food web
A cell's nucleus divides to form two identical nuclei during the stage of the cell cycle known as ____________
highest or top
the least amount of energy is available at the _______ level of an energy pyramid
the final stage of the cell cycle, during which th ecytoplas divides, is called _____________
the energy role of the first organism in a food chain is always a _________
a change in DNA is called__________
Water vapor turns into droplets of liquid water in the process of ________
When a mutation disturbs the cell cycle, the result can be _____, or uncontrollled cell division
chloroplasts contain a pigment called _______ that captures the energy in light
the soil that is frozen all year in the tundra is called ________
certain bacteria change nitrogen gas into a usable form in a process called __________
Which nitrogen bas in RNA is NOT part of DNA?
________ is the process by which a cell makes an exact copy of its DNA