Mantle is a layer on planetary body which is made up of minerals. Mantle is solid as it is made up of heavy metals and solid rocks which makes it rigid.
A mantle is a layer inside a planetary body bounded by a core and on the above by a crust. Mantle is made up of rock or ices, and is generally the largest and most massive layer of any planetary body. Mantles are on the planetary bodies that have undergone differentiation by density.
The mantle is composed primarily of heavy metals, such as iron, nickel, and others. The state of the mantle was described as plastic. Many divide the mantle into further such as the asthenosphere and lithosphere.
Mantle rocks are soft and able to move over the course of millions of years at great depth and pressure. The transfer of heat and material in the mantle helps to determine the landscape of the planet.
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If the mantle is made out of soft rock, then I think it would melt due to the heat, but if it was hard, it would just burn, so I firmly believe the rock is hard.
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grade 9 biology 2021 all chapter
Biology is a natural science that studies living organisms and their interactions with their environment. Living organisms are organized in a complex hierarchy and share key properties. Through time, less-diverse ancestral organisms evolved into the diverse life forms we see today.
Biology is the science that studies living organisms and their interactions with one another and their environments. This discipline attempts to describe and understand the nature of the universe in parts or as a whole. Biology is considered a natural science along with fields related to the physical world and its phenomena.
Living organisms share several key properties such as order, sensitivity or response to stimuli, reproduction, growth and development, regulation, homeostasis, and energy processing. They are organized in a hierarchy that includes atoms, molecules, organelles, cells, tissues, organs, and organ systems. Organisms, in turn, are grouped as populations, communities, ecosystems, and the biosphere.
This is further evidenced in a diagram called a phylogenetic tree that can be used to show evolutionary relationships among organisms. This indicates that the diversity of life today has evolved from less-diverse ancestral organisms over billions of years.
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E. lack peptidoglycan, are the smallest free-living organisms AND have sterols in their membranes.
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Mycoplasmas are also called pleuropneumonia-like organisms (PPLO) are the smallest free-living, prokaryotic organisms. They do not have a cell wall and is bounded by a plasma membrane which contains sterol.
Since cell wall is absent in them, they lack peptidoglycan. These are present in animals, plants, insects, soil and sewage. They grow better in the aerobic environment but can also live as facultative anaerobes.
Mycoplasma cause infection, affects cell metabolism, gene expression.
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chemical change changes the identity of a substance, while a physical change can just be observed. Some signs that a chemical change has occurred are, temperature change, forming bubbles, color change, new substance forming, there are more, but those are just some of which i now
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The formation of a gas is a clue to chemical changes. The bubbles of gas that you observed form when an antacid is dropped into water is an example of change. ... After ice melts into liquid water, you can refreeze it into solid ice if the temperature drops. Freezing and melting are physical changes.
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Connective tissues have cells scattered throughout an extracellular matrix. They connect different body systems. Blood is considered as a type of connective tissue because It connects the body systems, transports oxygen and nutrients to all the parts of the body, and removes the waste products
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Blood is considered a tissue because it consists of similar cells (red blood cells, white blood cells, and platelets) working together to transport oxygen, fight diseases, and clot blood. Its classification as a tissue arises from the coordinated function of these cells.
Blood is classified as a tissue in cellular organization because it is made up of similar cells that work together to perform a specific function. In the case of blood, it is composed of different types of cells such as red blood cells, white blood cells, and platelets, all suspended in a liquid matrix called plasma. These components work together to perform essential roles such as oxygen and nutrient transport, immune response, and clotting respectively.
It's important to remember that in biology, a tissue is defined as a group of similar cells and their intercellular substances functioning together to perform a specialized activity. Hence, blood, with its coordinated function of different blood cells, qualifies as a connective tissue.
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