Define the different forms of community interaction: competition, commensalism, mutualism, predation, parasitism

 

Competition is a contest between individuals, groups, animals, etc. its a goal that cannot be shared. such as territory or resources.

commensalism is when there are two orginisims relasionships benifits one but not thr other. An example of this is when birds follow ants on the forrest floor too catch bugs tryng to get away.

mutualism is when two orginisims biologicly interact helping reproductive purposes. this is believed to help move along some mutations of plants. an example of this is when birds eat seeds or bugs off of plants and help polonate the plant.

  

Predation is when an organism that is hunting feeds on its prey. an example of this is lions eating a buffalo.

 

Parasitism is when the parasite, benefits at the expense of the other, the host.

Compare and contrast two biomes describe them in detail include pictures of plants and animals you are liklely to see

marine biome   =  this is the largest of all the ecosystems, oceans are very large bodies of water that dominate the Earth's surface. Like ponds and lakes, the ocean regions are separated into separate zones: inter tidal, pelagic, abyssal, and benthic. All four zones have a great diversity of species. Some say that the ocean contains the richest diversity of species even though it contains fewer species than there are on land. the oceans are 

full of Coral reefs and Estuaries.   

The main kinds of animals in the sea are whales, dolphins, sharks, and seals which are some of the most popular kinds of sea mammals. Other kinds of animals and fish that live in the sea are the walrus, star fish, eel, crabs, jelly fish, and fresh and salt water fish, but this is just a small list compared to the many different kinds of fish that inhabit the marine biome. In general these fish have about five different adaptations. These adaptations include sleek bodies to cut down on friction when swimming through the water, gills to allow them to breath underwater, eyes on the sides of their heads so they can see enemies coming, fins to help them swim faster, and they have color coded skin to help them hide from their enemies. Most of the small fish are herbivores and the larger ones are carnivores.

desert biome =  

Deserts cover about one fifth of the Earth's surface and occur where rainfall is less than 50 cm/year. Although most deserts, such as the Sahara of North Africa and the deserts of the southwestern U.S., Mexico, and Australia, occur at low latitudes, another kind of desert, cold deserts, occur in the basin and range area of Utah and Nevada and in parts of western Asia. Most deserts have a considerable amount of specialized vegetation, as well as specialized vertebrate and invertebrate animals. Soils often have abundant nutrients because they need only water to become very productive and have little or no organic matter. Disturbances are common in the form of occasional fires or cold weather, and sudden, infrequent, but intense rains that cause flooding.

There are relatively few large mammals in deserts because most are not capable of storing sufficient water and withstanding the heat. Deserts often provide little shelter from the sun for large animals. The dominant animals of warm deserts are nonmammalian vertebrates, such as reptiles. Mammals are usually small, like the kangaroo mice of North American deserts. 

In the desert you are most likely to find camels, scorpions, lizards among a few others.

blog #3 Explain microevolution

this is an evolution from small specific genetic changes that results  into a new subspecies. there are two main sources of genetic variation. mutation and gene shuffling, mutations occur from changes, mistakes or replication of dna. gene shuffling is basically when u mix up the dna of the parents.

blog #4 natural selection

directional selection is - this is when individuals with a trait have a higher fitness than the others without-birds with bigger, thicker beaks can feed more easily on larger, harder thicker-shelled seeds. if theres a food shortage that leaves only large thick seeds. the birds with bigger beaks have a higher access food which means the adapted birds have a higher fitness, and the average beak size shall increase.

stabilizing selection is - this is when average individuals have a higher chance of living - when babies are born small ones have a chance of getting sick which lowers there fitness but bigger ones have difficulty being born so the average baby has the highest fitness.

Disruptive selection is - when  individuals in the the middle of species have the lower chance of living - like when seeds of medium size are less common the bird has the least chance of survival compared to birds that eat big and small seeds.

Describe the three types of selection: directional, stabilizing and disruptive and give an example of each in your own words

directional selection is - this is when individuals with a trait have a higher fitness than the others without-birds with bigger, thicker beaks can feed more easily on larger, harder thicker-shelled seeds. if theres a food shortage that leaves only large thick seeds. the birds with bigger beaks have a higher access food which means the adapted birds have a higher fitness, and the average beak size shall increase.

stabilizing selection is - this is when average individuals have a higher chance of living - when babies are born small ones have a chance of getting sick which lowers there fitness but bigger ones have difficulty being born so the average baby has the highest fitness.

Disruptive selection is - when  individuals in the the middle of species have the lower chance of living - like when seeds of medium size are less common the bird has the least chance of survival compared to birds that eat big and small seeds.

Why is evolution a theory and not a law?

A scientific fact is something that can be tested and proven time and time again. but evolution takes place over generations and generations so it can not really be tested. so in such a way it is called theory and not fact.

lung cancer project- justin montoya

Lung Cancer

Lung cancer is the deadliest type of cancer for both men and women.lung cancer begins at the lungs, the two main organs that allow us all to breathe. Most lung cancer begins in the tubes called bronchi.there are two main types of lung cancer one called non small lung cancer and the other being small cell lung cancer. lung cancer is dominant and can spread through out the lungs.

90% of lung cancer comes from cigarette smoking.

Not everyone who smokes will develop lung cancer

the list below are common factors in most lung cancer cases

• High levels of air pollution

• High levels of arsenic in drinking water

• Radon gas

• Asbestos

• Family history of lung cancer

• Radiation therapy to the lungs

Exposure to cancer-causing chemicals such as uranium, beryllium, vinyl chloride, nickel chromate's, coal products, mustard gas, chloromethyl ethers, gasoline, and diesel exhaust

 symptoms of most lung cancers

Symptoms depend on the specific type of cancer you have, but may include

• • Cough that doesn't go away

• • Coughing up blood

• • Shortness of breath

• • Wheezing

• • Chest pain

• • Loss of appetite

• • Losing weight without trying

• • Fatigue

Additional symptoms that may also occur with lung cancer

• • Weakness

• • Swallowing difficulty

• • Nail problems

• • Joint pain

• • Hoarseness or changing voice

• • Swelling of the face

• • Facial paralysis

• • Eyelid drooping

  
  

  "I want to know God's thoughts, the rest are details." Einstein

  
  
  
  links;
  https://health.google.com/health/ref/Lung+cancer , http://www.yalemedicalgroup.org/stw/Page.asp?PageID=STW025788, http://www.medicinenet.com/lung_cancer/article.htm

using DNA to solve a crime

Dna is used to solve crimes. This way of solving murders has been used since the early 80's. its an exact way to catch someone if they leave behind ; hair, blood, skin, salavia or anything from their person