Which of the following must unicellular organisms do to maintain homeostasis? A. Specialize cells to perform specific functions
B. Organize cells into tissues
C. Use chemical signals to communicate between its cells
D. Change food or sunlight into useful energy

Answers

Answer 1

Answer: The answer is C. Homeostasis is the process within a cell which aims at maintaining equilibrium within the cell. All living cells exhibit this process. Homeostasis happens by detecting and responding to slight changes in the normal processes inside the cell. Homeostasis occurs by regulating the movement of substances in and out of the cell to maintain a stable concentration inside the cell. It uses chemical signals to communicate between its cells.

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Please help!High School Earth and Space Science Semester B (EdOptions Academy users)Course Activity: Comparing Energy Resources Part DManagement of natural resources can affect the sustainability of human populations. For example, consider an effort to decontaminate a small village’s water supply. This effort is projected to increase the carrying capacity from an initial population of 400 people (P = 400) to 450 people (K = 450) during the course of 10 years (x = 10). Use the simulation to determine the growth rate r of the population in this village. Round your answer to the nearest whole number. (Hint: Use the tool's zoom feature to get a closer look at the curve.)(view image for graph)Part ETechnological advancements can help make consumption and management of natural resources more sustainable, as discussed in part C. As technology enhances renewable, sustainable energy sources, how will this likely affect the carrying capacity and growth rate of the human population over time?Part FRead this below about biodiversity, and then answer the following question.“The Midwest is helping to pioneer the biofuel movement in the United States. Burning biomass—a natural resource—for fuel doesn’t emit additional CO2 into the atmosphere. However, biofuel production reduces the area’s biodiversity because corn, which is a primary source of biomass, is overplanted. Grasslands and fields once inhabited by a large variety of flowers, grasses, insects, and pollinators are being cleared as the demand for corn increases. The impact of eliminating these species and decreasing the area’s biodiversity then spreads as other plants and crops that relied on the insects and pollinators are threatened. These negative consequences can then magnify throughout the ecosystem.”If an ecosystem is no longer able to sustain its biodiversity, what potential impact could that fact have on the carrying capacity and growth rate of the human population over time? As you answer, think about how the energy is transferred through an ecosystem.Part GWrite one to two paragraphs describing the relationship between the management of natural resources, the sustainability of the human population, and biodiversity. Use your work from parts A through F to guide you.
A slow reproduction process is a disadvantage of which form of reproduction

Which would least likely be seen on an information pamphlet for red tide ?

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incorrect facts shouldn't be on it

Answer:

People are warned to avoid eating shrimp and lobster.

Explanation:

The genetic material appearing like a thread in the nucleus is known as _____. chromatin DNA the spindle

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The correct answer is the chromatin. The chromosomes of all organisms, excluding bacteria, are made of chromatin. Chromatin is a group of macromolecules consisting of RNA, DNA, and protein.

The correct answer is the chromatin.

Other than chemical digestion in the mouth due to amylase in saliva, there is also mechanical digestion by teeth. True or False?

Answers

Answer: False

Explanation: There is hardly to no mechanical digestion in the mouth

Choose all the right answers. select four options. identify the structures associated with the female part(s) of a flower. a. ovary b. stamen c. anther d. pistil e. stigma f. egg g. petal

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Answer:

a. Ovary

d. Pistil

e. Stigma

f. Egg

So the correct options are a, d, e, and f.

I. Humans which of these is a vestigial structure

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Ok idk if there was a picture that was supposed to go with that cause I don't see one but here are some vestigial structures in humans: Appendix, Pinky toe (debatable possible used for balance) , ear muscles, tail bone, wisdom teeth, nictitating membrane, male nipples (sorry to be gross), and goosebumps. Those are the ones I can remember. Hope this helps!

Most blood cells are:

A : red
B : white
C : platelets
D : hemoglobin