Cardiac muscle contracts A. in response to voluntary output B in response to nonvoluntary input C. on its own without input

Answers

Answer 1

Answer: It contracts on its own without input. The answer is C.
Hope that helped you.

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Integumentary system
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What was the experimental variable that Avery used when he repeated Griffith's work?

Answers

Answer:

the type of molecule-destroying enzyme he used

Explanation:

Frederick Griffith and Oswald Avery were scientific researchers who discovered DNA. Frederick Griffith began the research and Oswald Avery continued his research in 1944 when they made the discovery of DNA. When Avery repeated Griffith's research the experimental variable in Avery's experiment was the type of molecule-destroying enzyme he used.

WHAT IS THE FUNCTION FOR MEIOSIS AND MITOSIS?

Answers

Meiosis reproduces sex cells mitosis recreates body cells

How people depends on ecosystem

Answers

We depend completely on nature for essential, life-sustaining services – clean air and water, a stable climate, food – yet our activities are having an increasingly dramatic and detrimental effect on wildlife and ecosystems, putting not just wild species but also our own survival at risk

Scientists were able to determine the age of the earth from rock samples that were analyzed.What technique was used to do this?

A.
fossil records <--- thats what i think

B.
radiometric dating

C.
extinction

D.
geologic time scale

Answers

Answer: B. radiometric dating

Radiometric dating is an aging process which is used to age rocks and other objects associated with them. This is based upon the decay process of radioactive isotopes present in the rocks. The radioactive decay is the process in which an unstable nucleus loses it's energy in the form of emerging radiation. The age of the typical rock is determined by the half life of the decayed products.

B. Radiometric dating. A method to determine absolute age.

which of the essential nutrients is/are grouped into different types of sugars? proteins water vitamins and minerals carbohydrates fats

Answers

Answer:

Carbohydrates.

Explanation:

Carbohydrates are essential to the body. They are sugars or starches that provide energy for all the cells and tissues in the body. There are two different types of carbohydrates: simple and complex.

The threshold velocity for silt is _____. higher than the threshold velocity for sand lower than the threshold velocity for sand the same as the threshold velocity for clay

Answers

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

The threshold velocity for silt is lower than the threshold velocity for sand

Answer:

The correct answer is option B, lower than the threshold velocity for sand

Explanation:

Threshold velocity of the soil is the velocity where soil has overcome the gravitational force and the inter particle force and it starts moving. The factors which affect the threshold velocity of soil are –

a) Lower the sand content , higher will be the threshold velocity

b) Size of aggregates in the soil – the larger the size of the aggregate the larger will be its velocity

c) Size of soil particles – soils with soil particle size greater than 1 mm shall move easily.

Considering all the above three factors, it is clear that the threshold velocity of silt is lower than that of sand as the sand content in silt is high and also its particles are finer than that of sand particles.

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Joe is conducting an experiment to determine which liquid will cause bean plants to grow faster. He watered the plants with equal amounts of liquid and measured their height every other day. The plants are in the same pots with different soils and placed in the same location. Will Joe be able to obtain reliable data to write a supported conclusion?A. Yes, because he is only observing the height of the plant.B. Yes, because he consistent with watering the plants.C. No, because he used different soils.D. No, because he use only one type of plant.

30 POINTSMOST of the ENERGY RELEASED in CELLULAR RESPIRATION takes place in the very LAST STAGE of the entire process known as the KREB CYLCESelect one:TrueFalse

The smallest group that includes gibbons and humans but does not include tarsiers is.... A) Primates . B) Anthropoids . C) Hominoids . D) Hominines