FREE AND STUDY GAMES ABOUT 7TH GRADE SCIENCE

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FREE AND STUDY GAMES ABOUT 7TH GRADE SCIENCE

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -292 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: what are the reactants of photosynthesis?

Answer:

carbon dioxide, water and sunlight

Question 2: our understanding of decomposers has allowed scientists to create

Answer:

biodegradable plastics Question 3: is an organism's genetic makeup, while is an organism's physical appearance

Answer:

Genotype, phenotype

Question 4: how do large proteins enter the nucleus?

Answer:

all of these

Question 5: which of the following is an example of reproduction at the organization level?

Answer:

a lioness has a litter of cubs

Question 6: what is an ecomorph?

Answer:

a population that has recently evolved physical variations to adapt to a specific microenvironment

Question 7: selection means which of the following?

Answer:

favorable traits that are passed on will ultimately become common within the population

Question 8: what does cellular respiration begin with?

Answer:

One molecule of glucose and oxygen Question 9: the words homeo and stasis mean:

Answer:

similar and stable

Question 10: what is a producer?

Answer:

an organism that makes its own food

Question 11: which is true about random mutations?

Answer:

they introduce new variation into a population Question 12: what do we call something that restricts the number that can be supported in an environment?

Answer:

limiting factor

Question 13: the is a double membrane that shields the nucleus

Answer:

nuclear envelope

Question 14: what are genes?

Answer:

all are correct Question 15: if all cells are created by other living cells, which of the following is true?

Answer:

all of the answers are correct Question 16: what is the relationship between an individual's genotype and their phenotype?

Answer:

genotype partially causes phenotype Question 17: which of the following theories best explains the mass extinction the mass extinction of the dinosaurs?

Answer:

catastrophism

Question 18: which of the following statements is FALSE regarding mitosis?

Answer:

Mitosis is a phase of a cell's life in which the cell is growing, replicating DNA and carrying out general activities

Question 19: which of the following best describes carrying capacity?

Answer:

the maximum number of living organisms that an environment can support

Question 20: which of the following nitrogenous bases is NOT found in RNA?

Answer:

thymine

Question 21: which of these structures help plant cells maintain their rectangular shape?

Answer:

Cell Wall Question 22: photosynthesis is a process in plants that uses and produces energy and oxygen.

Answer:

sun, water, and carbon dioxide

Question 23: which is not one of the internal components of a cell?

Answer:

Glycolysis

Question 24: what is the TCA cycle?

Answer:

all of the answers are correct

Question 25: protists have what type of cells?

Answer:

Eukaryotic

Question 26: which of the following is a way that a cell is organized?

Answer:

an alligator's have organelles that perform specific functions Question 27: people today are taller than they were a hundred years ago. This seems to be

because:

Answer:

we have better nutrition, which is an environmental factor that affects phenotype Question 28: what do we call the idea that life can develop from non-living matter?

Answer:

spontaneous generation