Answer: Heterotrophs
Explanation:
Organism that cannot make their own food and depends on the external sources for its energy are known as the heterotrophs.
They are dependent on the other organisms for their energy. They feed on the plants or animals for their energy.
Other than plants all the other organisms are dependent on food from other sources as they lack the ability to make food by their own.
Heterotrophs are the organisms that feed on other organisms to get energy to survive. Option B, Heterotrophs.
Organisms are classified into autotrophs and heterotrophs depending on how they get energy.
Heterotrophs need to feed on other organisms to get the necessary energy to survive. They do not produce their own food as producers do.
Depending on the food chain, heterotrophs might be either primary, secondary, tertiary consumers, and so on.
Also, depending on their source of food, they might be either herbivores (if they feed on plants) or carnivores (if they feed on animals). Omnivores can feed either on plants or animals.
In the exposed example, the organisms that cannot make their own food and must obtain energy from external sources are called heterotrophs.
The correct option is b. Heterotrophs
You can learn more about heterotrophs at
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B. Limestone
C. Magma
D. Sediment
Answer: C. magma
Explanation: This molten rock is called magma. Molten rock that reaches Earth's surface is called lava. An igneous rock is classified on the basis of its mineral composition and the size of its mineral crystals. A rock formed from magma can have the same composition as a rock formed from lava.
Respiration
Photosynthesis
Homeostasis
Reproduction
Answer:
Homeostasis
Explanation:
Homeostasis means that there is an equilibrium in the cell. Moving materials either in or out helps to ensure that both inside and outside the cell are equal.
Moving substances into and out of cells helps maintain homeostasis, which is a state of steady internal conditions.
The process of moving substances into and out of cells helps maintain homeostasis. Homeostasis is a state of steady internal conditions maintained by organisms. Cells need to regulate what substances enter or leave them in order to keep their internal environment stable. This is instrumental for their proper function. For example, nutrients need to be absorbed while waste products need to be expelled.
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B.The oils in the lotion enter the skin cells with the help of carrier proteins.
C.The oils in the lotion enter the skin cells by means of facilitated diffusion.
D.The oils in the lotion enter the skin cells by means of simple diffusion.
The right answer is D.
The absorption of molecules at the level of the skin is carried out by passive diffusion for the molecules of low molecular weight (lower than 400 Da), the skin being covered with a lipoprotein film rich in water by its stratum corneum, rendering it little-permeable.
This absorption may be variable according to factors related to the skin such as stratum corneum's thickness, the state of hydration, the presence of cutaneous lesions or individual variations.
External factors may also modulate percutaneous absorption such as contact time, iontophoresis or the presence of specific adjuvants.
fat is to lipid.
DNA is to RNA.
sugar is to fat