<span>Waste products such as poop, diarrhea, and carbon dioxide (look in the respiratory system) must be removed. If they are allowed to accumulate they cause poisoning which slows down vital chemical reactions. Which can cause many problems to develop.</span><span />
A. a description of a trait or habitat.
<h2>Exponential Population Growth</h2>
Explanation:
The model of exponential population growth predicts that the per capita population growth rate, r :
d. does not change as the population gets larger.
A population shows exponential growth if there is no limitation on growth. All members have abundant resource availability and the population displays its intrinsic rate of increase.This is also known as geometric growth .In geometric growth, rate of increase is expressed as a constant fraction or an exponent by which a particular population is multiplied.
The correct answer is ferns and horsetails.
<span>Recent research analyzes have shown that there are three monophyletic groups of vascular plants: 1. lycophytes, 2. seed plants and 3 a clade including horsetails and ferns.</span> <span>The monophyletic group includes a group of organisms descended from a single ancestor.</span>
Answer: <u>Option B; photosynthesis</u>
Explanation: Carbon is present in the atmosphere in gaseous form as carbon dioxide majorly. And, only plants can take up CO2 and use it to make glucose. This reaction takes place through photosynthesis, taking place in the leaves of the plants. Rest activities mentioned in option A, C and D, these all release CO2 into the atmosphere.