1st Semester Standards

If B=brown eyes and b=blue eyes, what cross would produce 75% brown-eyed offspring?

• BbxBb

• BBxBb

• Bbxbb

• bbxbb

If B=brown eyes and b=blue eyes, what cross would produce 50% brown-eyed offspring?

• BbxBb

• bbxbb

• Bbxbb

• BBxBB

If B=brown eyes and b=blue eyes, what cross would produce only blue-eyed offspring?

• BbxBb

• bbxbb

• BBxbb

• BBxBB

If B=brown eyes and b=blue eyes, what cross would produce only brown-eyed offspring?

• BbxBb or BBxBB or BBxBb

• BBxBB or BBxbb or bbxbb

• BbxBb or BBxbb or bbxbb

• BBxBB or BBxbb or BBxBb

Which is the correct analogy of a cell to our school?

• A cell is like a wall a tissue is like a brick, an organ is like a classroom, an organ system is like a grade level, an organism is like a school.

• A cell is like a brick, a tissue is like a wall, an organ is like a classroom, an organ system is like a grade level, an organism is like a school.

• A cell is like a school, a tissue is like a grade level, an organ is like a classroom, an organ system is like a wall, an organism is like a brick.

• A cell is like a brick, a tissue is like a wall, an organ is like a classroom, an organ system is like a school, an organism is like a grade level.

Tags

NGSS.MS-LS1-3

Which systems work together to maintain homeostasis by making sure that our heart rate is stable?

• The circulatory system sends messages to the muscles of the heart and blood vessels which makeup the nervous system to transport blood.

• The nervous system sends messages to the muscles of the heart and blood vessels which makeup the respiratory system to transport blood.

• The nervous system sends messages to the muscles of the heart and blood vessels which makeup the circulatory system to transport blood.

• The respiratory system sends messages to the muscles of the heart and blood vessels which makeup the nervous system to transport blood.

Which is a correct explanation of how our body systems maintain homeostasis by making sure our cells gets nutrients such as glucose?

• The digestive system breaks down food into glucose and the circulatory system transports the glucose to our body cells

• The circulatory system breaks down food into glucose and the digestive system transports the glucose to our body cells.

• The digestive system breaks down food into glucose and the respiratory system transports the glucose to our body cells.

• The respiratory system breaks down food into glucose and the circulatory system transports the glucose to our body cells.

Tags

NGSS.MS-LS2-3

Cross a homozygous dominant black fur pig with a heterozygous pig. What is the probability of offspring with the recessive trait?

• 25%

• 50%

• 0%

• 75%

PP and Pp are two different genotypes. How is it possible that they have the same phenotype?

• Each genotype has a dominant allele present that will be masked by any recessive allele present.

• Each genotype has a recessive allele present that will be masked by any dominant allele present.

• Each genotype has a recessive allele present that will mask any recessive allele present.

• Each genotype has a dominant allele present that will mask any recessive allele present.

Tags

NGSS.HS-LS3-1

Choose the correct analogy of the cell organelles and the body systems.

• The cytoplasm is like the excretory system, cell membrane is like the circulatory system, mitochondria is like the muscular system, and the nucleus is like the nervous system.

• The nucleus is like the excretory system, cytoplasm is like the circulatory system, mitochondria is like the muscular system, and the cell membrane is like the nervous system.

• The cell membrane is like the excretory system, cytoplasm is like the circulatory system, mitochondria is like the muscular system, and the nucleus is like the nervous system.

• The cell membrane is like the excretory system, cytoplasm is like the circulatory system, nucleus is like the muscular system, and the mitochondria is like the nervous system.

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-3