The image below shows the processes of mitosis and meiosis. How do the products of mitosis compare to the products of meiosis?

Question

(1 point)
Responses

The cells from mitosis are a requirement of sexual reproduction, but the cells from meiosis are a requirement of asexual reproduction.
The cells from mitosis are a requirement of sexual reproduction, but the cells from meiosis are a requirement of asexual reproduction.

The cells from mitosis are identical to each other and to the parent cell, but the cells from meiosis are not identical to each other or the parent cell.
The cells from mitosis are identical to each other and to the parent cell, but the cells from meiosis are not identical to each other or the parent cell.

Mitosis produces sperm and egg cells, but meiosis produces body cells, like skin and muscle.
Mitosis produces sperm and egg cells, but meiosis produces body cells, like skin and muscle.

Mitosis produces cells with half the chromosomes of the parent cell, but meiosis produces cells with the same chromosomes as the parent cell.
Mitosis produces cells with half the chromosomes of the parent cell, but meiosis produces cells with the same chromosomes as the parent cell.

Answer 1

The correct response is:

"The cells from mitosis are identical to each other and to the parent cell, but the cells from meiosis are not identical to each other or the parent cell."

This statement accurately describes the key differences between mitosis and meiosis. Mitosis results in two genetically identical daughter cells, while meiosis results in four genetically diverse gametes (sperm and egg cells) that have half the number of chromosomes compared to the parent cell.

Answer 2

When automobiles are designed, engineers try to maximize their fuel efficiency. Even with modern technology, today's most efficient vehicles can only attain about 30% efficiency. That means of all the chemical energy of the fuel put into an automobile, only 30% of the fuel results in car motion. Which statement best explains why this happens?(1 point)
Responses

Much of the energy is destroyed.
Much of the energy is destroyed.

Most of the energy is transformed into mass.
Most of the energy is transformed into mass.

Most of the energy becomes chemical energy.
Most of the energy becomes chemical energy.

Much of the energy is transformed into heat.

Answer 3

The statement that best explains why only about 30% of the chemical energy in fuel results in car motion is:

"Much of the energy is transformed into heat."

This occurs due to numerous factors such as friction, engine inefficiencies, and the thermodynamic processes involved in converting chemical energy to mechanical energy, which result in a significant amount of energy being lost as heat rather than being used for propulsion.

Answer 4

In the diagram below, light from the Sun strikes a beach (Z). The beach sand gains heat then warms the air that is immediately above it (X) and the sand that is immediately below it (Y).The warm air rises and is replaced by cool air (W). Which point indicates convective heat transfer?

(1 point)
Responses

Y
Y

Z
Z

X
X

W

Answer 5

The point that indicates convective heat transfer is:

W

In this context, convective heat transfer occurs as the warm air (X) rises, being replaced by cooler air from the surrounding area (W). This movement of air is a key characteristic of convection.

Answer 6

Jay wants to know how the amount of acidity in rainwater influences the weathering rate of limestone. To answer his question, Jay performs an experiment in which he soaks identical pieces of limestone in 200 mL of different carbonic acid solutions. The pH of the solutions range from 3.0 to 5.5. After performing his experiment once, he reports his data and draws a conclusion. What can Jay do to improve the reliability and accuracy of his data?(1 point)
Responses

He can use different types of rocks but follow the same experimental procedure.
He can use different types of rocks but follow the same experimental procedure.

He can repeat his experiment using a sodium hydroxide base instead of carbonic acid.
He can repeat his experiment using a sodium hydroxide base instead of carbonic acid.

He can increase the volume of the carbonic acid solutions.
He can increase the volume of the carbonic acid solutions.

He can repeat his experiment multiple times and ask someone else to replicate his experiment.

Answer 7

To improve the reliability and accuracy of his data, Jay should:

He can repeat his experiment multiple times and ask someone else to replicate his experiment.

Repeating the experiment multiple times helps to verify the consistency of the results, while having someone else replicate the experiment can help identify any biases or errors in methodology, further increasing the reliability of the findings.

Answer 8

Carbon (C) and hydrogen (H) are pure substances. Each is made of only one type of atom, but carbon atoms are different from hydrogen atoms. Carbon and hydrogen chemically combine to form methane (CH4).Based on this information:(1 point)
Responses

methane is an element and carbon and hydrogen are compounds.
methane is an element and carbon and hydrogen are compounds.

carbon and hydrogen are elements and methane is a compound.
carbon and hydrogen are elements and methane is a compound.

carbon, hydrogen, and methane are all elements.
carbon, hydrogen, and methane are all elements.

carbon, hydrogen, and methane are all compounds.

Answer 9

The correct response is:

carbon and hydrogen are elements and methane is a compound.

Carbon (C) and hydrogen (H) are pure substances and are classified as elements because they consist of only one type of atom. When carbon and hydrogen chemically combine, they form methane (CH₄), which is classified as a compound because it is made up of two or more different types of atoms chemically bonded together.

Answer 10

Mrs. Clark decides to do a demonstration for her class with a piece of notebook paper. Using a balance, Mrs. Clark discovers that the mass of the paper is 20 g. She then takes the piece of paper and cuts it into several small pieces. The cumulative mass of the small pieces is 20 g. What has Mrs. Clark demonstrated for her class?(1 point)
Responses

a chemical change involving change of mass
a chemical change involving change of mass

a chemical change involving change of shape and size of matter
a chemical change involving change of shape and size of matter

a physical change involving change of shape and size of matter
a physical change involving change of shape and size of matter

a physical change involving change of mass

Answer 11

The correct response is:

a physical change involving change of shape and size of matter.

Mrs. Clark's demonstration involved cutting the paper into smaller pieces, which is a physical change. The mass of the paper remained the same before and after cutting, showing that the total mass is conserved, which is a characteristic of physical changes.