BIOLOGY HIGH SCHOOL

Fish are classified as vertebrates because they havea. a brain.
b. a backbone.
c. two germ layers.
d. bilateral symmetry.

Answers

Answer 1
Answer: B, a backbone.

Not A, because we know some species that aren't vertebrates and have a brain. 
C. two germ layers, isn't a characteristic specific to vertebrates.
d. bilateral symmetry, no for the same reasons as A.
Answer 2
Answer: the answer is b) a backbone

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The process of making many copies of DNA is:

Answers

DNA Replication is the process of making many copies of DNA. If it helped please mark as the brainliest answer

Which of the following best explains why soil conservation is important to human agriculture

Answers

The bare soil surface type affects the amount of runoff because it has no other stopping mechanism that prevents runoff to happen. Just like in the use of pesticide, it is harmful to human agriculture because it contains an antifreezing chemical (present in transportation vehicles). When the chemical seeps into the soil, it will create a runoff and can seep into the groundwater causing pollution.

 
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In a trophic pyramid, which of the following populations would be found in the trophic level directly above the producers?a. hawks
b. rabbits
c. snakes
d. trees

Answers

The answer is b. rabbits.

Rabbits are herbivores and thus primary consumers in a trophic pyramid.
On the first trophic level are producers. Trees, together with other plants, are able to make their own food, so they are producers. Herbivores, such as rabbits, eat plants. So they are primary consumers and just above the producers in the trophic level. Secondary consumers, which are carnivores, eat herbivores. An example is a snake. Tertiary consumers are carnivores too. They eat other carnivores. For example, a hawk is a tertiary consumer.

Answer:

b

Explanation:

What is the final electron acceptor in aerobic respiration

Answers

Oxygen, it then bonds with hydrogen to produce water

Answer:

Oxygen

Explanation:

1.Which career combines DNA technology and medicine?a)pharmaceuticals
b)paternity testing
c)environmental studies
d)biopesticide development

2.A patient is found to be suffering from a bacterial infection. Which genetically engineered medicine is most likely to be used to help this patient?
a)insulin
b)flu shot
c)penicillin
d)human growth hormone

Answers

A career that combines DNA technology and medicine is pharmaceuticals. A knowledge of both is needed in this field.

Penicillin would be most likely to help a patient who is found to be suffering from a bacterial infection. Penicillin is used for bacterial infections, while insulin is used for diabetics, the flu shot is used to prevent flu, a human growth hormone would not fight a bacterial infection.

The right options are;  

1. a) pharmaceuticals

2. c) penicillin

Pharmaceuticals is a career that involves the production, discovery, development, and sales of drugs that are used as medications for treatment, vaccination or to reduce a symptom. Pharmaceuticals is a career that combines DNA technology and medicine.

Penicillins are a group of antibacterial drugs that attacks many bacteria. Penicillin are widely used, and are effective against many bacterial infections caused by staphylococci and streptococci. Penicillin include procaine penicillin, penicillin V (oral use), penicillin G (intravenous use), and benzathine penicillin (intramuscular use).  

What happens to the carbon dioxide which collected in human tissues?

Answers

Carbon dioxide in the tissues is produced as the result of oxidation of glucose...
This carbon dioxide in process of respiration diffuse out of the tissues in form of molecular carbon dioxide and join with water forming carbonic acid ...
In lungs again carbon dioxide is separated and released out of the body...
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