a ------- is a type of research that involves observation and collecting data but does not include a control a. independent variable B. dependent variable c. investigation d. experimentation

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Answer 1

Answer: I think the correct answer is C. An investigation is a type of research that involves observation and collection of data but it does not include a control. In an investigation, all data and information that is related to the subject matter are collected it does not think of any factors that may affect the subject.

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The results of gel electrophoresis are shown below What can you determine about the DNA from looking at results of this test

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You can determine the approximate size of the DNA.

One way in which researchers have attempted to restore vision is through implanting corneal cells in a person’s eye.

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correct answer is false

false . . . . . . . . .

The smallest unit that retains the properties of an element is a(n) _____.

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The smallest unit that retains the properties of an element is an atom. An atom is the smallest unit of matter that has the element's properties and every state of matter is composed of atoms.

The given blank can be filled with the atom.

An atom is the minutest component of a matter, which exhibits the characteristics of a chemical element. Every liquid, solid, plasma, and gas comprises ionized or neutral atoms.

The atoms are extremely small, the usual sizes are about 100 picometers. Each atom contains a nucleus and one or more electrons combined with the nucleus. The nucleus is formed of one or more protons and usually a same number of neutrons.

Which scientist studies biotic factors?

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The scientist that studies biotic factors would be a biologist. The reason for this is the fact that biologists are scientists who study all living things which are also all the biotic factors. Although it is also true that other scientists could be studying biotic factors as well.

Why might a blood cell have a different shape than a muscle cell

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Blood cells carry oxygen to the rest of the cells in the body, and hemoglobin can help it do so. But in order for the hemoglobin to be effective enough, the blood cell has to be a certain kind of shape.

Which of the following cycles is crucial to living organisms? a. phosphorus b. water c. carbon d. all of the above

Answers

Answer: All of the above

Explanation:

The living component of the ecosystem consists of both living and non living components. The living components of the ecosystem consists of plants and animals.

The non-living components of ecosystem consists rocks, river, soil et cetera. The living components of the ecosystem needs to depend on the non living and living components.

The phosphorous, nitrogen and carbon cycle are important for the living components of the ecosystem.

The answer is D. All of the above

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Whales in the order Mysteceti are larger than whales in order Odontoceti. Which of the following best explains this?whales in order Mysteceti are filter feeders and obtain higher levels of energy by consuming krill, zooplankton, and small fish. whales in order Mysteceti are toothed and therefore are high level predators and obtain higher levels of energy by consuming large fish, squid, and seals. whales in order Odontoceti are filter feeders and obtain higher levels of energy by consuming krill, zooplankton, and small fish. whales in order Odontoceti are toothed and therefore are hi

In mammals, which of the following substances is produced in a muscle that operates anaerobically?Acetyl COACitrateNADPHLactateOxygen

Is absorption defined as moving from the GI tract to the enterocyte? True False

In a year, a population of lions had four births, two deaths from disease, one natural death, five emigrations, and five immigrations. In the same year, a population of zebras had five births, three deaths, four emigrations, and one immigration. Which best explains the data?