The diagram below shows some relationships between ecosystems near the
Sonoran and Chihuahuan Deserts. What happens as elevation increases?

9000 feet
-- 8000 feet
Temperate
Forest
-- 7000 feet
- 6000 feet
Madrean
Woodland
(sporadically
Interior Chaparral)
Semidesert Grassland
- 5000 feet
4000 feet
Thomscrub
3000 feet
2000 feet
Desert
-1000 feet
A. Size of plants decreases
B. Number of cacti increases
O
O
O
O
C. Amount of rainfall increases
D. Soil fertility decreases.

Turtle hatchling survivorship rate is low in many turtle species due to predation. amanda researched the predatory rate on a species of turtle eggs in the red river. the eggs were harvested from trapped turtles and the egg's cloaca film (reproductive discharge) was either washed off or left on once gathered. research suggests that predators use the female's cloaca scent to locate the eggs. the eggs were only handled when wearing gloves and then reburied along islands where the turtles were trapped. the nests were monitored by cameras and manually on foot and data on nest predation were recorded. a. based on the experimental design, what is the dependent variable? b. based on the experimental design, what is the independent variable? c. based on the experimental design, what is the control?

The empty trna moves off and picks up another matching amino acid from the cytoplasm in the cell. the anticodon of the trna, with its attached amino acid, pairs to the codon of the mrna, which is attached to a ribosome. this sequence is repeated until the ribosome reaches a stop codon on the mrna, which signals the end of protein synthesis. the ribosome forms a peptide bond between the amino acids, and an amino acid chain begins to form. when a second trna with its specific amino acid pairs to the next codon in sequence, the attached amino acid breaks from the first trna and is bonded to the amino acid of the second trna.

Which statement is a physical property? becomes moldy quicklyeasy to digestconducts electricity poorlydoes not burn