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2 years ago

Why does the invasive brown treesnake have a negative effect on the biodiversity of guam?

1 answer:

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If brown tree snake or Boiga irregularis was introduced to Guam it can caused the mass extinction of most of the island's native bird and native lizard species. with the decrease in native pollinators their will be a huge decline in plant species in guam.

The brown tree snake is considered as ecological threat on the island of Guam, where it has swallow up nearly all the native birds since its accidental introduction more than 70 years ago. These brown tree snake was introduced to Guam in the mid of 1940's and has caused the functional extinction of all native forest birds and lizard species. To save the Guam's remaining birds, researchers placed nests on top of smooth poles so that no snake could climb.

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Science utilizes _______ to determine the best explanations for the natural world.

KIM [24]

The answer is scientific theory. It amalgamates scientific law about objects and events that are widely accepted and tested. Scientific theory rationalizes phenomenon, that is not rigorously understood, through science. Examples of scientific theories today are the special relativity theory of Albert Einstein.

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3 years ago

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identify the types of questions that interest behavior geneticists, and describe the elements of heredity: chromosome, dna, gene

baherus [9]

The interaction between genetics and environment and how this affects behavior, resulting in individual variances, is of particular interest to behavior geneticists.

The environment in this context refers to every external, nongenetic component of our life, including prenatal nutrition and the people and objects in our immediate surroundings.

Chromosomes:

Each of our cells contains 46 chromosomes, 23 from our mother and 23 from our father. Chromosomes are complicated, spiraling molecules formed of DNA that resemble threads and contain genes.

DNA:

We have over 30,000 genes, which are DNA segments that, when activated (expressed), serve as templates for the synthesis of different protein molecules, which serve as the foundation for our physical and behavioral growth.

Genome:

The entire collection of instructions for creating an organism, included in all of its chromosomal genetic material, is called an organism's genome.

Gene:

Combinations of mutations at certain gene locations serve to distinguish us from one another. The majority of human features are not controlled by a single gene acting alone, but rather by a number of genes working together.

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1 year ago

You have a fishbowl in your bedroom filled with water and you realize after a week that the water level had Gone down a little b

MakcuM [25]

Answer:

Evaporation.

Explanation:

Most cases of dropping water levels are simply evaporation, usually caused by higher temperatures in warmer climates.

7 0

2 years ago

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3. While walking in the forest floor, you found an organism that has the following characteristics: had the consistency and appe

Leviafan [203]

Answer:

What are stinkhorns? Stinkhorns are mushrooms that are found from the tropics to more temperate regions such as Wisconsin. They can suddenly appear in mulch, lawns, and areas with bare soil. These visually-shocking fungi get their common name from their characteristic, unpleasant odor. Although they are often unwanted additions to home gardens, stinkhorns do not cause plant disease. Because stinkhorns can grow on dead organic material, they actually are beneficial in that they contribute to the recycling of plant debris into nutrients that improve soil fertility and can be used by garden plants.

What do stinkhorns look like? Stinkhorns grow into various shapes, but they are bestknown for looking like horns or penises. A few species grow several appendages, resulting in an octopus-like appearance. Some species have a veil attached below the cap that resembles a lacey skirt flowing from the mushroom’s hollow stalk. Stinkhorns can range in color from white, beige, and olive to bright orange or red with black accents. The tips of mature stinkhorns are usually coated in a spore-containing slime. Gardeners often discover immature stinkhorns as they dig in the soil. The immature forms appear as whitish to pink or purple, egg-shaped masses. Stinkhorns develop rapidly sometimes growing up to four to six inches per hour, and can generate enough force to break through asphalt.

Where do stinkhorns come from? Stinkhorns are often first introduced into a garden in organic materials (e.g., soils and mulches) that contain microscopic hyphae (i.e., fungal threads) of stinkhorn fungi. Once stinkhorns mature, they produce a pungent, off-putting odor that is reminiscent of rotting flesh or dung. This smell may disgust people, but it attracts insects, particularly flies. Flies and other insects eat the slimy material at the tips of stinkhorns and carry spores in this slime to new locations as they move around in the environment. In many ways, this process is comparable to the distribution of pollen by bees (but of course without the more appealing scents associated with most flowers).

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3 years ago

Select the correct answer from each drop-down menu. the sun is the primary source of energy for ecosystems. the sun emits . when

galben [10]

The scientific law of one organism feeding off other where energy is transferred from one form to another is known as the law of conservation of energy.

<h3>How the sun is the primary source of energy for ecosystems?</h3>

Energy from the highest energy source that is sun is absorbed by plants to convert it into food (i.e a form of energy). plants are the only ones that can convert sunlight into another form of energy directly.

The animals and organisms that feed off of the plants take some part of this energy for their life cycles and then the animals that feed off of these animals again take some part of this energy and carry on with their life cycle, this is how energy from sun (highest source) is transferred to different organisms by Just changing form.

Thus, The scientific law of one organism feeding off other where energy is transferred.

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2 years ago