Organisms must be able to adapt to a changing external and internal environment. An organism's ability to maintain a stable internal environment is known as homeostasis. How does a cell's membrane help an organism maintain homeostasis?

Answer:

d.Ovary

Explanation:

The part of the stamen where pollen is produced. Pistil: The ovule producing part of a flower. The ovary often supports a long style, topped by a stigma. The mature ovary is a fruit, and the mature ovule is a seed.

three examples of bacteria billions of years ago are the coccus, bacillus, and spirochete

Final answer:

Bacteria billions of years ago played a critical role in shaping the Earth's atmosphere and the development of life. Cyanobacteria, archaea, and stromatolites are examples of bacteria from that time.

Explanation:

Billions of years ago, bacteria played a crucial role in shaping the Earth's atmosphere and the development of life. Some examples of bacteria that existed back then include:

1. Cyanobacteria: These ancient bacteria were the first organisms capable of photosynthesis, releasing oxygen as a byproduct and contributing to the oxygenation of our planet's atmosphere.
2. Archea: Certain types of archaea bacteria, such as methanogens, were present and played a role in the early carbon cycle, producing methane gas.
3. Stromatolites: These are fossilized bacterial mats found in ancient rocks, providing evidence of early bacterial life and their important role in Earth's history.

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Answer:

Artificial selection can be described as the method by which organisms with the desired characteristics are crossed so that offsprings with better qualities can be produced.

Although artificial selection is an effective way to produce organisms with better traits, yet this technique has some consequences of its own. Growing plants and animals through this method will lead to lesser genetic variety. In the future id any disaster such as a disease infects the organisms then the entire population will be eradicated as there will be little or no genetic diversity at all.

The correct answer is B. Honeybee pollinates a flower while gathering nectar.

Mutualism is an interspecific interaction between two species in which both the species are benefited from the interaction. Honeybee visits flower to collect nectar for its food. In the process of collecting nectar, pollen grains stuck to its body. Flower gets pollinated when hone bee visits another flower. Thus, both  honeybee and plants get benefit from this interaction.    

its B cause it the both good for each other

The correct answer is option B

The mining of uranium is harmful for both air and water. Uranium is a radioactive compound that is extracted by mining.

Uranium ore emits the gas named radon. The health effects of exposure to radon have particular problems. Significant rate of lungs cancer was observed during the 1940s and 1950s.

Water is used in the heap leaching of the uranium mining. The water can get mixed into the normal supply of water and harm the health of people.

Mining of the radioactive element Uranium has the following negative effects on both air and water such as contamination.

What is Uranium?

This is a a silvery-white metallic chemical element in the periodic table, with atomic number 92 and is commonly used to run nuclear power plant.

it exists in the air and when contaminates water could lead to kidneyailments in affected individuals which is why option B was chosen as the most appropriate choice.

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