Considering the following statements;
A. It can exist without a constant source of energy input
B. It must contain consumers but can exist without producers.
C. It involves interactions between biotic and abiotic factors.
D. It can exist on land, but it cannot exist in lakes, rivers, or oceans.
The correct statement is C. that an ecosystem involves interactions between biotic and abiotic factors.
Biotic factors are the living things in an ecosytem, they include plants, animals, bacteria, fungi and others. Abiotic factors on the other hand, are the non-living factors in an ecosystem, they include water and air, sunlight, the amount precipitation in an ecosystem is also an example of abiotic factor. The two types of factors are crucial for an ecosystem to exist and thrive.
Answer:
You are a family physician and you have several patients that are coming in to have their moles looked at for possible melanoma.For each of the following patients use the ABCD chart to identify whether their moles are suspicious for melanoma.In the box below each mole image write a summary paragraph answering the following:1.Is there a possibility the mole is cancerous and why/why not?2.What is your advice to the patient for this mole? (none, proper sun care, removal, etc.)The diameter is too big and the color variation is different he just is unlucky because he may have skin cancer. The border is bad and its asymmetrical. Must see doctor.Patient 3 InformationPatient is 30 yr. old Native American female with medium skin tone with no history of skin cancer.She has had very little sun exposure and it is located on the medial side of her right knee and is 14 mm.The mole border looks pretty good, and the color is consistent.But due to his family’s history he should really get checked out and have an infinite amount of sunscreen on when he is outside.Plus the diameter is smaller than a pencil’s eraser which is 6mm.Patient 2 InformationPatient is 10 yr.old Caucasian male with very fair skin who has no history of skin cancer, but every member of his family has.He has had average sun exposure and it is located 3 inches distal of his left elbow and is 4 mm.The mole may be cancerous because she has already had 3melanomas removed. The mole looks like it varies in color, the border is all over the place and it’s not symmetrical. She also confesses to being at the beach all the time. My advice would be to get a full evaluation done and to stay out of the sun.Patient 1 InformationPatient is a 73 yr.old Caucasian female with fair skin who has had 3 melanomas removed in the past 2 years.She is a self-confessed beach bum and has been since 1950.It is located on her right shoulder and 6 mm.
When people or animals play and interact with information, they get smarter.
Answer:
It is a laboratory method used to separate mixtures of DNA, RNA, or proteins according to molecular size.
