Which characteristic do all these cells have in common? * 20 points Captionless Image Membrane-bound Organelles Vacoules Genetic Material Nucleus

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Answer 1

Answer:

Answer:

Thus, the common feature of the organelles within the list is that they are surrounded by a membrane. However, the membranes of each of the organelles are slightly different. For example, the nuclear membrane contains pores through which mRNA can travel to the cytoplasm in order for protein synthesis to occur.

Explanation:

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Which is not a way in which prokaryotes are useful to humans? a. to synthesize drugs
b. to produce foods such as yogurt
c. to form a symbiotic relationship and obtain ammonia
d. none of the above

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is the answer below correct? because i know the option "to synthesize drugs" is wrong.

The correct answer would be C - to form a symbiotic relationship and obtain ammonia.

1. in an ecosystem with four levels—producers, primary consumers, and two higher-level consumers—describe where the decomposers operate relative to the other trophic levels. provide at least two examples of organisms at each level.

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Decomposers, as the name suggests, decompose dead plants or animals into simple compounds. They feed on dead producers from the first levels or consumers from other three levels. Breaking them down, decomposers release nutrients that producers can use.
In an ecosystem with four levels, the first level are producers, such as plants and algae. On the second trophic level, there are primary consumers, herbivores that eat plants, for example, a deer, a rabbit, a grasshopper. The next trophic level belongs to secondary consumers that eat herbivores, for example, a wolf, a fox. The highest level is tertiary consumers that eat carnivores, for example, a bear, an eagle.

An unripe fruit will ripen faster if placed next to a ripe fruit because of

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I will ripen faster if placed next to a ripe fruit because of ethylene

An accident at a chemical factory resulted in contamination of a nearby river. Which of the following types of information would best inform the decisions of local policy makers? A. Prior bacterial counts in the river. B. Salary levels for workers at the factory. C. Ongoing water quality monitoring at the site. D. Historical analysis of building code violations in the region.

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I think c would be much appreciated.

Definition: this is the process of organisms adapting to their environments over time.

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It's actually Natural Selection

This process is evolution.

Sponges have...a. a coelom
b.tentacles
c. specialized cells
d. bilateral symmetry

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Answer:

c. specialised cells

Explanation:

Sponges are invertebrates that belong to phylum Porifera. Most of them live in marine environment. They do not have true tissues or organs but specialised cells that perform specific functions for example porocytes, amoebocytes, pinacocytes and choanocytes. Porocytes control the water amount entering inside the sponge pores and choanocytes control the water movement inside the sponge body.

Sponges consume food via phagocytosis. They reproduce both asexually and sexually. They are sessile i.e. immobile.

Final answer:

Sponges have specialized cells that perform specific functions like filtering food and excreting waste. They do not have a coelom, tentacles, or bilateral symmetry.

Explanation:

Sponges have specialized cells. These cells are responsible for the various functions of sponges, such as filtering their food and excreting waste. Some examples of specialized cells in sponges are collar cells, which line the inside of the sponge and generate water flow, and amoebocytes, which transport nutrients throughout the sponge. Sponges do not have a coelom, tentacles, or bilateral symmetry.

Learn more about Sponges here:

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Which of the following organelles is responsible for converting energy from food into a form the cell can use? ribosome golgi apparatus mitochondrion nucleus

Consider the following prairie food chain. Tall grass is consumed by grasshoppers that, in turn, are eaten by mice, and the mice are eaten by prairie kingsnakes. Red-tailed hawks prey on mice and prairie kingsnakes. When a red-tailed hawk dies, bacteria, beetles, fungi, and many types of worms help break down the body. Which of the following correctly identifies a trophic level in this ecosystem? View Available Hint(s) A. The tall grass is a decomposer B. The red-tailed hawk is a secondary consumer. C. The worms are primary producers. D. Grasshoppers are primary consumers.

Though hen and frog both are oviparous but they have different types of fertilization. Justify.

Researchers have reported that the number of different species of fish found in certain areas of the ocean has been greatly reduced over the past 50 years. Give a reason, other than overfishing, that may be the cause of this decline.