BIOLOGY HIGH SCHOOL

The class decided to humanely euthanize the organism and subsequently dissect it. Having decided that it was probably not a reptile, two of their original hypotheses regarding its identity remained. Which of the following, if observed, should help them arrive at a conclusive answer?A) Presence of a closed circulatory systemB) Presence of moist, highly vascularized skinC) Presence of lungsD) Presence of a nerve cordE) Presence of a digestive system with two openings

Answers

Answer 1
Answer:

Reptiles cannot absorb oxygen via their skin like amphibians can because of their scales, reptiles, on the other hand, only breathe air through their lungs, hence option C is correct.

What are reptiles?

However, compared to amphibian lungs, their lungs are more effective and have a larger surface area for gas.

Reptiles don't have gills as amphibians do they only have lungs, and their scaly, dry skin keeps them from drying out.

With a few rare exceptions, every one of these animals has lungs, however many can also breathe via their skin or through other means of gas exchange. Both reptiles and amphibians have a cloacal chamber, much like birds do.

Therefore, reptiles, on the other hand, only breathe air through their lungs, hence option C is correct.

Learn more about reptiles, here:

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Answer 2
Answer:

Answer:

A) presence of a closed circulatory system

Explanation:


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HIGH SCHOOL

List at least two organs in the body with rapidly dividing cells.

Answers

Answer: The skin and the bone marrow.

The bone marrow needs to be constantly producing all the blood cells because they don't have a long life and they need to be in big amounts. The skin cells, also need to be constantly dividing to replace old, dead, or damaged cells.
The liver cells are another example because they can regenerate after they become injured.



MIDDLE SCHOOL

If each of ten events is equally likely to occur, the probability of each individual event occurring is percent.

Answers

10%. 100 divided by 10 events is 10
MIDDLE SCHOOL

How do radiation and chemotherapy affect cancer cells?

Answers

Answer:

They destroy the DNA or RNA

Explanation:

Cancer drugs work by damaging the RNA or DNA. The faster the cancer cells divide, the more likely it is that chemotherapy will kill the cells, causing the tumor to shrink. They also induce apoptosis. Radiation therapy is a cancer treatment that uses high doses of radiation to kill cancer cells and shrink tumors. The radiations also induce apoptosis. Cancer cells whose DNA is damaged beyond repair stops dividing and die. The damaged cells die, they are broken down and removed by the body.

MIDDLE SCHOOL

DNA is located in the ____of a cell

Answers

Answer:

nucleus

Explanation:

Answer:

DNA is located in the nucleus of the cell

HIGH SCHOOL

If someone is predisposed to a disease, they are more likely to contract the disease due to __________. a. lifestyle choices
b. heredity
c. random chance
d. factors other than heredity or lifestyle

Answers

If someone is predisposed to a disease, they are more likely to contract the disease due to heredity. Thus, the correct option is B.

What is Heredity?

Heredity may be defined as the process by which characters are transferred from one generation to the next generation.

Some genetic disorders like Colorblindness, Sickle cell anemia, Hemophilia, Cystic fibrosis, Muscular dystrophy, etc. are heritable diseases that directly pass from parents to their offspring.

Such types of diseases are highly predisposed as compared to lifestyle or random chance diseases.

Therefore, if someone is predisposed to a disease, they are more likely to contract the disease due to heredity. Thus, the correct option is B.

To learn more about Heredity, refer to the link:

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It’s b I took the test right now

HIGH SCHOOL

Bacteria perform each of the following ecological roles. Which role typically does not involve a symbiosis? A) skin commensalist
B) decomposer
C) aggregates with methane-consuming archaea
D) gut mutualist
E) pathogen

Answers

The answer is B decomposer
MIDDLE SCHOOL

Where does photosynthesis occur

Answers

Answer:

Where ever light and the organelles to conduct photosynthesis meet

Explanation:

For example, leaves in a plant have chlorophyll, which can create glucose using light. All it needs is the material to do so. I can't really say that much. :D

Photosynthesis take place in the chlorophyll. This makes the plant green.
HIGH SCHOOL

What is an important characteristic of waxes, and why is this valuable to living things?

Answers

Waxes are considered to be important to living things, because waxes are a type of lipid. Lipids are energy stored within our body, somewhat like a storage of energy. Lipids, consists of other substances, such as oil, fats and the likes. Lipids store energy, for the cells to consume whenever they need it.
MIDDLE SCHOOL

a sporting goods store is having a sale on hiking pants the manager orders 120 cases of pants and each case contains 6 how many pairs of hiking pants ford the manager order

Answers

120x6=720 Hope it helps! #Brainiac

120cases x 6 pair per case =720 pairs of pants
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