Photosynthesis causes the amount of carbon dioxide to change depending on the season. What would be true for the Northern hemisphere (where we live)?(3 points)

Responses

Carbon dioxide in the atmosphere would be highest in the fall and lowest in early spring because photosynthesis takes carbon dioxide out of the atmosphere.
Carbon dioxide in the atmosphere would be highest in the fall and lowest in early spring because photosynthesis takes carbon dioxide out of the atmosphere.

Carbon dioxide in the atmosphere would be highest in early spring and lowest in the fall because photosynthesis puts carbon dioxide into the atmosphere.
Carbon dioxide in the atmosphere would be highest in early spring and lowest in the fall because photosynthesis puts carbon dioxide into the atmosphere.

Carbon dioxide in the atmosphere would be highest in early spring and lowest in the fall because photosynthesis takes carbon dioxide out of the atmosphere.
Carbon dioxide in the atmosphere would be highest in early spring and lowest in the fall because photosynthesis takes carbon dioxide out of the atmosphere.

Carbon dioxide in the atmosphere would be highest in the fall and lowest in early spring because photosynthesis releases carbon dioxide into the atmosphere.

7 answers

The correct statement is:

Carbon dioxide in the atmosphere would be highest in early spring and lowest in the fall because photosynthesis takes carbon dioxide out of the atmosphere.

This is true because, in the Northern Hemisphere, vegetation such as trees and plants is actively photosynthesizing during the growing season (spring and summer), which removes carbon dioxide from the atmosphere. In the fall, as plants lose their leaves and photosynthesis decreases, carbon dioxide levels rise. By early spring, there has been significant decomposition and breakdown of organic matter during the winter, leading to higher atmospheric carbon dioxide levels until the new growing season begins.

An orchid growing in a rain forest and a cactus growing in a desert live in different environments. Which statement is the best explanation of the different factors that would affect the two plants?(3 points)
Responses

A cactus growing in a desert would have more carbon dioxide, so it could grow faster than an orchid growing in a rain forest.
A cactus growing in a desert would have more carbon dioxide, so it could grow faster than an orchid growing in a rain forest.

An orchid growing in a rain forest would have more oxygen, so it could grow slower than a cactus growing in a desert.
An orchid growing in a rain forest would have more oxygen, so it could grow slower than a cactus growing in a desert.

An orchid growing in a rain forest would have more water, so it could grow faster than a cactus growing in a desert.
An orchid growing in a rain forest would have more water, so it could grow faster than a cactus growing in a desert.

A cactus growing in a desert would have less sunlight, so it could grow faster than an orchid growing in a rain forest.

The best explanation of the different factors that would affect the two plants is:

An orchid growing in a rain forest would have more water, so it could grow faster than a cactus growing in a desert.

This is accurate because orchids thrive in humid environments where there is abundant water, which supports their growth. In contrast, cacti are adapted to arid desert conditions and have evolved mechanisms to conserve water, but they typically grow slower in less favorable conditions. While both plants have their own adaptations suitable for their environments, the availability of water is a key factor that would positively impact the growth of the orchid compared to the cactus.

Which statement is true about what happens to glucose during cellular respiration?(3 points)
Responses

Glucose is broken apart and energy is stored during cellular respiration.
Glucose is broken apart and energy is stored during cellular respiration.

Glucose is a product of cellular respiration and energy is released when it is made.
Glucose is a product of cellular respiration and energy is released when it is made.

Glucose is a product of cellular respiration and energy is stored when it is made.
Glucose is a product of cellular respiration and energy is stored when it is made.

Glucose is broken apart and energy is released during cellular respiration.

ABC or d

The correct statement is:

Glucose is broken apart and energy is released during cellular respiration.

This statement accurately describes the process of cellular respiration, where glucose (C6H12O6) is metabolized in the presence of oxygen to produce carbon dioxide, water, and energy (in the form of ATP). During this process, the chemical bonds in glucose are broken down, releasing energy that the cell can use for various functions.

Which statement best explains why dragonflies stand on branches with their head down and abdomen in the air when it is hot during the summer?

(3 points)
Responses

Dragonflies are endotherms, so they store energy in layers of fat and can control their body temperature.
Dragonflies are endotherms, so they store energy in layers of fat and can control their body temperature.

Dragonflies are endotherms, so they can't sweat to control their body temperature.
Dragonflies are endotherms, so they can't sweat to control their body temperature.

Dragonflies are ectotherms, so they store energy in layers of fat and can control their body temperature.
Dragonflies are ectotherms, so they store energy in layers of fat and can control their body temperature.

Dragonflies are ectotherms, so they can't sweat to control their body temperature.

The best statement that explains why dragonflies stand on branches with their head down and abdomen in the air when it is hot during the summer is:

Dragonflies are ectotherms, so they can't sweat to control their body temperature.

This statement is true because dragonflies are ectothermic (cold-blooded) organisms, meaning they rely on external environmental conditions to regulate their body temperature. By positioning themselves in certain ways (such as standing with their head down and abdomen raised), they can maximize their exposure to wind and minimize direct sunlight on their bodies, which helps them manage their temperature in hot weather. Unlike endothermic organisms (warm-blooded animals), ectotherms do not have the ability to sweat for thermoregulation.