Carbon dioxide consumption can be used to measure primary productivity in an ecosystem.
- Primary productivity refers to the rate at which energy is converted to organic material by photosynthesis.
- Primary productivity can be calculated by analyzing the change in biomass of producer organisms.
- Primary productivity can also be calculated by analyzing the movement of carbon dioxide (consumption).
- Primary productivity can also be estimated by analyzing the movement of carbon dioxide the movement of oxygen over time.
In conclusion, carbon dioxide consumption can be used to measure primary productivity in an ecosystem.
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D seems like a reasonable answer.
Answer: Rainforest plants are in a constant battle, not just with the insects, fungi, birds and mammals that eat them, but also with each other.
In order to get the sunlight that they need, plants have to be able to grow faster, or to have bigger leaves, than their neighbours.
Plants protect themselves from predators using various strategies. Some tropical rainforest plants are poisonous, some have thorns, some have thick bark and others have tough leaves.
But it’s not all about keeping animals away. Rainforest plants also have to attract the animals that help them to pollinate. Pollination is the process that starts a new plant growing. 90% of flowering plants require animal assistance to pollinate.
One of the plants in the tropical rainforest that has developed a special relationship with an insect is the Bucket Orchid.
The bee is trapped in the orchid long enough for the wax that holds the pollen to the bee’s body to set. The male bee then flies off. Not only will he now be attractive to female bees – if he visits another bucket orchid, he will also pollinate the flower.
<span>The avian heart has evolved into a large and powerful organ with rapid muscular contractions. Generally the smaller the species the larger the relative heart size. Generally birds have hearts larger and ones that beat faster than mammals. The human heart weight amounts to .42 percent of body weight and the pulse rate at rest averages 72 beats per minute. The House Sparrow's heart constitutes 1.68 percent of the body weight and the pulse rate at rest averages 460 beats per minute. In the Ruby-throated Hummingbird these figures rise to 2.37 percent and a pulse rate of 615.</span>
They encourage Karen to brainstorways to refuse a cigarette in different situations that might come up, thinking skill are the parents helping Karen build -handling a hypothetical situation.
<h3>What is Active peer pressure?</h3>
Active peer pressure occurs when your friends explicitly persuade you to do something. Examples are offering and forcing you to drink then criticizing for refusing it. Forcing you to attend a party even your parents do not agree.
On the other hand, passive peer pressure happens within a person's want to fit in to his/her colleagues. It is further classified into social modeling and perception.
Thus, option "A" is correct.
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