Stionsctions: Answer the questions in a complete sentence.
1. What is the major difference between passive and active transport?

Answers

Answer 1

Answer:

Final answer:

Passive transport does not require energy and substances move from an area of high concentration to an area of low concentration. Active transport requires energy and substances move against the concentration gradient.

Explanation:

The major difference between passive and active transport is that passive transport does not require energy, while active transport requires energy. In passive transport, substances move from an area of high concentration to an area of low concentration without the use of energy. Examples of passive transport include diffusion and osmosis. In contrast, active transport involves the movement of substances against the concentration gradient, from an area of low concentration to an area of high concentration, with the use of energy. An example of active transport is the sodium-potassium pump.

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Which of the following statements is true of chemical bonds?Both ionic and covalent bonds involve electrons in the innermost shell.
Covalent bonds share electrons between two atoms.
An atom involved in an ionic bond has an equal number of electrons and protons.
Salts are covalently bonded.
The atoms in a molecule of water (H2O) are bonded together with ionic bonds.

Answers

The true statement of chemical bonds is covalent bonds share electrons between two atoms.

A covalent bond is a type of interaction that involves one or more pairs of electrons (e-) being shared between two atoms.

In a covalent bond, shared electrons are jointly attracted by both atomic nuclei.

A double covalent bond occurs when four electrons are shared between two atoms, whereas a triple covalent bond involves the sharing of six electrons.

An ionic bond is when one atom gives its electron to another atom, e.g., during the formation of sodium fluoride.

In conclusion, covalent bonds share electrons between two atoms.

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Covalent bonds share electrons between two atoms.

Attentional Blink is a phenomenon characterized by the individual failing to detect a second visual stimulus that is presented _____ milliseconds after the first stimulus

Answers

Answer:

200 to 500 milliseconds

Explanation:

Attentional blink is a phenomenon that puts time-related limitations to the ability to utilize visual attention. When an individual must identify two visual stimuli presented one after another, the accuracy is very poor for the second stimulus if it occurs within 200 to 500 milliseconds of the first stimulus.

So, in our question, the gap is filled by 200 to 500 milliseconds.

Compare and contrast the process of reproduction in plants and animals

Answers

Answer:

Animals have exceptions like Sponges and Corals.

Explanation:

How is the nucleus involved in the production of enzymes? A. The nucleus translates the ribosomal RNA for the enzymes to be synthesized in mitochondria. B. The nucleus is involved in the packaging and transportation of enzymes outside of the cell. C. The nucleus receives the messenger RNA and is the site where enzymes are synthesized. D. The nucleus transcribes and releases messenger RNA signaling for the enzymes to be synthesized.

Answers

The correct answer is D. The nucleus transcribes and releases messenger RNA signalling for the enzymes to be synthesized.

The nucleus is the site of transcription, production of messenger RNA (mRNA). Because of that, it contains a lot of proteins that either directly are involved in transcription or are involved in regulation. mRNA is exported from the nucleus, after being post-transcriptional modified.

Helppppppp, I'm gonna cry

Answers

Answer:

click the third choice

Explanation:

Answer:

third choice

Explanation:

Pink eye is a recessive trait found in deer mice. In a cross between two individuals, both of whom are heterozygous for the pink eye mutation, the following offspring are obtained:Normal 18

Pink eye 2

Use the chi-square test to determine if the observed numbers of offspring fit the expected numbers of offspring from this cross. The value of is: ____________

Answers

Answer:

See the answer below

Explanation:

If pink eye is recessive, it means that the normal eye is the dominant trait. According to Mendelian law, the ratio of normal to pink eye in a cross involving two heterozygous mice should be 3:1.

Chi-square = $((O - E)^2)/(E)$ where O = observed frequency and E = expected frequency.