Unit IV-Section 8C \( \leqslant \begin{array}{l}\text { Assume the carrying capacity of the earth is } 24 \text { billion. Use the } 1960 \text { s peak annual growth rate of } 2.1 \% \text { and population of } 3 \text { billion to predict the base growth rate and } \\ \text { current growth rate with a logistic model. Assume a current population of } 6.8 \text { billion. How does the predicted growth rate compare to the actual growth rate of about } 76.67 \%, 7.67 \text { of } 10 \text { points } \\ 1.2 \% \text { per year? }\end{array} \) What is the base growth rate?

Why is Ardi such an important development? (A) It proves the connection between Antarctica and Australia. B It shows fossil records of how interconnected all of humanity is. (C) It lends credibility to the idea that humans originated in Mongolia. (D) It is even older than Lucy, another human ancestor fossil.

According to the text, how is the water amount reduced in underground aquifers? (A) Plant roots remove the water. (B) Snow melts and soaks into the ground. (C) Gravity moves the water into streams. (D) People pump water from them.

(4) Como los animales Puede responder a los estimuios internos y exterinos.

Take Test: Frog-Amphioxus development Arrange the following statments showing the normal series of development 6. \( \hat{v} \) The neural crest cells separated 4. \( \hat{v} \) The neural tube separated from the dermal ectoderm 1. \( \hat{v} \) Ectodermal cells invaginate inwards 2. \( \leqslant \) Formation of neural folds 3. \( \approx \) The two neural folds attached toeach other at the midline 5. \( \% \) The neural tube formed.

1. ¿Qué trabajo realiza una hormiga, que pesa un gramo, al subir 80 cm ?