BIOLOGY HIGH SCHOOL

In a DNA molecule, which nitrogenous bases are bonded together?A purines with purines
B pyrimidines with purines
C pyrimidines with pyrimidines

Answers

Answer 1
Answer: pryrimidines with purines

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Which of the following is an example of recycling a renewable resource? A. riding a bike instead of driving a car B. turning food scraps into compost for plants C. turning off lights when you are not using them D. washing plastic forks and using them again instead of throwing them away
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An animal that hides under a rock to avoid predators is responding to a(n) _____ stimulus.

Answers

The given blank can be filled with External.

The stimulus is a physical entity, which can provoke the response in the body of an organism. The hiding of the organism under the rock in response to the predator is and a type of external stimuli, as in this case, the organisms hide themselves inside the rock in response to the predator, which is present outside the body of the organism.

Answer:

External

Explanation:

Bc I know, and look around everyone is agreeing with the same answer.

Which of the following is not a possible effect of rising carbon dioxide levels on plants?a.
increased photosynthesis
b.
increased plant mortality
c.
increased crop productivity
d.
increased plant growth

Answers

I think the correct answer from the choices listed above is option B. Plant mortality is not a possible effect of rising carbon dioxide levels on plants. This value is a fixed value and cannot be affected by changes in the carbon dioxide level.

Answer:

increased plant mortality

Explanation:

The rise of carbon dioxide in the atmosphere  will definitely bring about increased in photosynthesis.

Photosynthesis in plants is a process whereby green plant produces nutrient in the present of sunlight from carbon dioxide and water. Photosynthesis is a necessity for plants to supply nutrient to the plants . The chemical equation for photosynthesis  can be represented as follows:

6CO2 + 6H2O sunlight → C6H1206 + 6O2

Photosynthesis converts light energy into chemical energy. Green plants in the presence of sunlight uses CO2 and H2O to produce food. Increase carbon dioxide will definitely increase crop productivity and plant growth. The more the carbon dioxide and water in the presence of sunlight  nutrient are added to the plant.

Plant will definitely not die because of rise in CO2.  

Why are the large intestines of a frog the length that they are?

Answers

Usually the length of the animals intestines are 3.5 the size of their own. The length of the frogs intestine is approximately 1.5 meters long. Usually frog's internal organs structures are closely the same as human. They have almost the same internal organs as us.

During DNA replication, which sequence of nucleotides will bond to the sequence ACGTAT?A. UGCAUA
B. TCGATA
C. UCGUAU
D. TGCATA

Answers

During the metabolism of DNA replication, the process of amino acid change is as follows: Alanine (symbol A) is transformed into Threonine (symbol T), Cysteine ​​(Symbol C) is converted to Glycine (symbol G) and vice versa. So the answer is D. TGCATA.

Represente, por meio de esquemas: A. Raízes com estrutura primárias e com estrutura secundária; B. Caules com estruturas primária e com estrutura secundária.

Answers

Answer:

Explanation:

respondeu em inglês. obrigado

Which of the following did not occur during the Cenozoic era?A. The rise of the dinosaurs
B. Climate change
C. Exposure of land bridges
D. An ice age

Answers

The correct answer is A.
The rise of dinosaurs did not occur during the Cenozoic era. The time of Mesozoic era is when the rise of dinosaurs discovered. The Cenozoic era is termed as the current geological era. It is the coverage period to present from 66 million years ago.
 It is also referred to as the age of mammals reason being large mammals that dominate it. Cenozoic is divided into three periods which include Quarternary, Neogene, and Paleogene. Cenozoic had seven epochs which include Holocene, Pleistocene, Pliocene, Miocene, Oligocene, Eocene, and Paleocene.
 Quarternary has recognized by the international commission on stratigraphy. Some other periods which were divided from Cenozoic include Mesozoic and Paleozoic.

A. The rise of the dinosaurs
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