The Correct answer is A.
As snow becomes compressed , air between the flakes gets trapped. The process involving trapping of air occurs during burial of snow layers and is generally not complete until the bubbles are about 60 meters or more below the surface.
Once the bubbles have formed, they act as the time capsules of the atmosphere when they were trapped. By extracting the air from the bubble in ice cores, changes in the past can be studied .
Studies of these changes show the dramatic increase of what are called greenhouse gases such as carbon dioxide, caused by human use of fossil fuels, as well as natural changes that accompany glacial climate
Haven’t taken bio in years but im thinking it’s A
Answer:
here.
Explanation:
The genes coding for colour show codominance. Both the brown and white pigment are equally expressed in the phenotype to give the tan colour.
Considering that the allele for brown pigment is CB and that for white pigment is CW, the genotype for the brown bird is CB CB and that for the white bird is CW CW.
Crossing CB CB × CW CW,
100% CB CW - tan-coloured birds
Answer: I chose rainforest
A rainforest is an area of tall, mostly evergreen trees and a high amount of rainfall. Mean temperatures in tropical rainforest regions are between 20 and 29 °C (68 and 84 °F), and in no month is the mean temperature below 18 °C (64 °F). The main animals are monkeys, Blue Morpho Butterfly, Okapi, Three-Toed Sloth, Jaguar, Capybara, Toucan, and Poison Dart Frog. The main plants are ferns, lichens, mosses, orchids, bromeliads, and of course many types of trees. including the rubber tree. Deforestation is a particular concern in tropical rain forests because these forests are home to much of the world's biodiversity. For example, in the Amazon around 17% of the forest has been lost in the last 50 years, mostly due to forest conversion for cattle ranching. The main cause of deforestation is agriculture (poorly planned infrastructure is emerging as a big threat too) and the main cause of forest degradation is illegal logging.
Answer:
D. They have longer life spans.
Explanation:
The species described as K-strategist have organisms with large body sizes. They exhibit slow development and have a long life span. These species attain reproductive maturity once the growth phase is complete. These species do not spend a large proportion of their metabolic energy on the production of offspring and do not produce a large number of offspring. They are found in the regions of relatively stable environments. Example: Redwood trees.
