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Zina [86]
4 years ago
14

What is the best description of organisms in the precambrian era?

Biology
2 answers:
balandron [24]4 years ago
7 0
C. Single-celled organisms and soft, boneless animals

Hope this helps!! (If not sorry!)
andreev551 [17]4 years ago
6 0
C- Single-celled organisms and soft, boneless animals.
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The human heart is an organ that is made up of cells. Not all of the cells that make up the heart are identical, however. What n
slava [35]

Answer:

The correct answer would be D)  tissue.

In biology, the level of organisation from simplest to complex level can be summarized as:

Organelles → cells → tissues → organs → organ systems → organisms → populations →communities → ecosystem → biosphere.

It is clear that tissue is organization level that exists between cells and organs.

When similar cells are assembled together to perform specific function, the assembly or this organization is said to be the tissue.

There can be different types of tissues such as muscle tissue, nerve tissue et cetera.

Similarly, tissues arrange themselves to carry out specific function in the form of organ.

For example, heart is made up of cardiac tissue.

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3 years ago
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Anemic conditions in agriculture animals result in a (blank) condition
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Make an appointment with your doctor if you're feeling fatigued for unexplained reasons. Some anemias, such as iron deficiency anemia or vitamin B-12 deficiency, are common.

Fatigue has many causes besides anemia, so don't assume that if you're tired you must be anemic. Some people learn that their hemoglobin is low, which indicates anemia, when they go to donate blood. If you're told that you can't donate blood because of low hemoglobin, make an appointment with your doctor.

7 0
3 years ago
What is causing the roots of a plant to grow downward
makkiz [27]

Answer:

Geotropism is the influence of gravity on plant growth or movement. Simply put, this means that roots grow down and stems grow up. ... In this case, the stimulus is gravity. Upward growth of plant parts, against gravity, is called negative geotropism, and downward growth of roots is called positive geotropism.

Explanation:

8 0
3 years ago
List some of the beneficial applications of transgenic bacteria,<br> plants, and animals.
kupik [55]

Answer:

Transgenic organism are the genetically modified organisms on their molecular level by altering their gene to improve the particular quality that is related to the particular gene in the organisms. It can be perform in bacteria, plants and animals, the produced organisms called transgenic organisms. The beneficial applications of such organism are given as follows:

Transgenic bacteria: these bacteria are first organisms to be genetically modified and used for several functions such as human proteins, producing material plastics and many more.

Transgenic plants: such genetically modified plants can be used to enhance food quality and quantity, to make pest resistant breed and increase the extreme condition tolerance and many more.

Transgenic animals: they are used to improve the quality of food supply, improve medicines and research purposes and many more applications.

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4 years ago
Predict how the removal of an herbivore from a adopts web could affect the entire community
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The amount of plants in the region would grow, but the amount of carnivores who eat the herbivores would diminish.
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3 years ago
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