Answer: None of these options.
Hope it helps!!
Explanation: Skeletal muscles are made up of connective tissue, blood vessels and nerves. they help in the movement of the body parts, protect the bones and joints also provide skeletal stability. In reality theses cells never divide. The myoblasts divide at the embroyonic stage and these are formed. When damaged the missing tissue is filled by adding new proteins and enlarging. So in reality they so not divide so no option fits here.
Answer:
Oxygen is essential for respiration because the body uses it to 'burn' food molecules. Animals take in oxygen when inhaling and give off carbon dioxide when exhaling. ... This is why rescue breathing works - it can supply a non breathing patient with enough oxygen to support life.Nitrogen is essential for all living things because it is a major part of amino acids, which are the building blocks of proteins and of nucleic acids such as DNA, which transfers genetic information to subsequent generations of organisms.
Explanation:
Free oxygen can be problematic for organisms due to its high reactivity and the production of reactive oxygen species (ROS), causing oxidative stress and various health problems. Excess free oxygen can lead to diseases in humans, while some organisms cannot tolerate free oxygen at all and will die if exposed to it.
Free oxygen can be a problem for many organisms due to its high reactivity. In aerobic organisms, free oxygen can lead to the production of reactive oxygen species (ROS) such as superoxide radicals, hydrogen peroxide, and hydroxyl radicals, which can damage cellular structures and molecules, including proteins, lipids, and DNA. This can result in oxidative stress and lead to various health problems.
For example, in humans, excess free oxygen can cause damage to cells and tissues, leading to diseases such as cancer, cardiovascular disease, and neurodegenerative diseases. Organisms that have evolved to survive in low-oxygen environments, such as certain bacteria and parasites, may be particularly sensitive to the presence of free oxygen and can even be killed by exposure to high levels of it.
In contrast, other organisms, such as obligate anaerobes, cannot tolerate the presence of free oxygen at all and will die if exposed to it. These organisms lack the enzymes and metabolic pathways required to deal with the toxic effects of oxygen. Examples of obligate anaerobes include some types of bacteria that live in environments without oxygen, such as deep-sea hydrothermal vents or the intestines of animals.
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The deforested land will not be able to support large trees again.
Some species will develop adaptations to survive in the deforested land.
Some populations will migrate out of the deforested area.
Some animals will instantly adapt to the deforested environment.
Answer:
The correct answers are:
Some species will develop adaptations to survive in the deforested land.
Some populations will migrate out of the deforested area.
Explanation:
Deforestation can be described as a process in which trees are cut down from a forest. This might be because of a natural disaster but mostly occurs due to human activities.
Deforestation mostly results in the organisms to move away from their previous habitat in order to survive as the resources become limited for them when deforestation occurs.
However, there are a few type of species which stay and try to adapt to the new conditions presented to them. Adaptations do not develop instantly but may occur with the passage of time.
Answer:
Explanation:
option b and option c
a. Genetic diversity occurs in sexual reproduction.
b. Asexually reproducing organisms can repair their own DNA.
c. There are no special reproductive cells in asexual reproduction.
d. A gametophyte produces haploid cells in the alternation of generations from sexual reproduction.
b. .01
c. .02
d. .03
e. .04
f. .05
g. .07
h. .08
Which feature do prokaryotic and eukaryotic cells share?
Answer:
Cenozoic era
Explanation:
The geological time scale consists of three eons: Archaean, Proterozoic and Phanerozoic. The Phanerozoic eon is divided into three era which are namely: Paleozoic, Mesozoic and Cenozoic era. Cenozoic era extends from “end-Cretaceous extinction” to the present day. It is dominated by mammals and is also called as the “age of mammals”.