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Jere
In addition to maintaining a wet environment necessary for survival of the embryo, what other essential charac?
a ability to absorb nutrients from the environment
b ability to allow for gas exchange
c low energy/material for the mother to produce
d easier fertilization
e a shell that most predators cannot break
1 AnswerBiology8 years agoWhat is correct about Sex-linked traits?
a. Can be carried on the Y chromosome
b. Affect males and females equally
c Can be carried on chromosome 20
d.A and B
e.None of the above
3 AnswersBiology8 years agoThe genotype of a red-eyed male fruit fly would be?
a XRXR
b.XRXr
c.XrXr
d.A or B
e None of the above
1 AnswerBiology8 years agoWhat distinguishes one gene from another?
the length of the chromosome the gene is on
the position of the gene on a chromosome
the order of amino acids of which the genes are made
the order of bases in the gene
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1 AnswerBiology8 years agoWhat is one of the differences between cell division in plant cells and cell division in animal cells?
Plant cells do not use a mitotic spindle to separate chromosomes.
Plant cells separate by the formation of a new plasma membrane and cell wall in the middle of the cell.
There is no DNA replication before cell division in plant cells.
Plant cells separate chromosomes by attachment to the plasma membrane.
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2 AnswersBiology8 years agoA gamete from a human male contains:?
22 autosomes, one X chromosome, and one Y chromosome.
23 autosomes and a Y chromosome.
23 autosomes and either an X or a Y chromosome.
22 autosomes and either an X or a Y chromosome.
23 autosomes and an X chromosome.
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4 AnswersBiology8 years agoCancer is a disease of the cells?
It occurs when there is a failure of cell cycle control. What types of changes could occur to cause a cell to become cancerous? What genes would be affected and why? Why would a cell cycle checkpoint need to be nonfunctional in order for cancer to develop?
2 AnswersBiology8 years agoWhich of the following statements is true?
The longest wavelength of light is the ultraviolet ray, which is the highest in energy.
The shortest wavelength of light is the visible light, which is the highest in energy.
The longest wavelength of light is the infrared ray, which is the highest in energy.
The shortest wavelength of light is the infrared ray, which is the highest in energy.
The shortest wavelength of light is the ultraviolet ray, which is the highest in energy.
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2 AnswersWords & Wordplay8 years agoYou owe your very life to chloroplasts. Explain why this is so.?
2 AnswersBiology8 years agoWhere does the NADPH created during the light reactions accumulate?
in the stroma
in the thylakoid membrane
in the thylakoid compartment
in the leaf's epidermis
in the stomata
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3 AnswersBiology8 years agoThe splitting of water in photosynthesis provides:?
hydrogen ions and light energy.
O2 and electrons.
CO2 and electrons.
glucose and electrons.
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2 AnswersBiology8 years agoPhotorespiration results in:?
sometimes more and sometimes less sugar being produced during photosynthesis.
no change in the sugar being produced during photosynthesis.
more sugar being produced during photosynthesis.
less sugar being produced during photosynthesis.
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2 AnswersBiology8 years agoCarbon fixation is taking place when plants?
produce CO2.
oxidize CO2.
convert CO2 into ATP.
incorporate CO2 into sugars.
ingest CO2.
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4 AnswersBiology8 years agoWhich of the following statements concerning enzymes is false?
They increase the activation energy required for chemical reactions to proceed.
Many enzymes utilize coenzymes, such as vitamins.
They function as catalysts.
The active site of an enzyme has a shape that is specific for its given substrate.
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2 AnswersBiology8 years agoWhich of the following is true of vitamins?
They can serve as enzymes.
They can serve as coenzymes.
They serve as a major energy source for cells.
They are the main component of enzymes.
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3 AnswersBiology8 years agoThe enzymes used by the Krebs cycle are located:?
in the cytosol.
between the inner membrane and outer mitochondrial membrane.
attached to the inner mitochondrial membrane.
in the inner compartment of the mitochondrion.
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2 AnswersBiology8 years agoAn effective way to kill weeds is to pour salt water on the ground around the plants.?
Explain why the weeds die, using the principles discovered in this lab.
5 AnswersBiology8 years ago