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jekas [21]
3 years ago
7

Which statement about natural selection is true?

Biology
1 answer:
mariarad [96]3 years ago
5 0

the answer is C, because I'm smart and I know that's it's right

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What type of reaction is the following: HCl+NaOH NaCl+H 2 O
Andrew [12]

Answer:

Neutralization Reaction.

Explanation:

This reaction involve an acid (HCl) reacting with a base (NaOH), producing a salt (NaCl) and water. Therefore it's a neutralization reaction.

7 0
3 years ago
Como se origino la vida abiojeneticas
sashaice [31]

Answer:

También se ha debatido el hábitat de la abiogénesis. Si bien alguna evidencia sugiere que la vida puede haberse originado a partir de la no vida en los respiraderos hidrotermales en el fondo del océano, es posible que la abiogénesis ocurriera en otros lugares, como en las profundidades de la superficie de la Tierra, donde las protoceldas recién surgidas podrían haber subsistido con metano o hidrógeno, o incluso en el océano. costas, donde los proteinoides pueden haber surgido de la reacción de los aminoácidos con el calor y luego entrar al agua como gotitas de proteína parecidas a células.

6 0
3 years ago
Write a paragraph on how Blood Glucose goes with Negative Feedback
vagabundo [1.1K]

Answer:

Here are some explanations from 0nline so if you want rewrite in your own words

hope this helps  :))

blood glucose-

"The control of blood sugar (glucose) by insulin is a good example of a negative feedback mechanism. When blood sugar rises, receptors in the body sense a change. In turn, the control center (pancreas) secretes insulin into the blood effectively lowering blood sugar levels."

"If the blood glucose level is too low, the pancreas releases the hormone glucagon. This travels to the liver in the blood and causes the break-down of glycogen into glucose. The glucose enters the blood stream and glucose levels increase back to normal. This is an example of negative feedback."

body temperature-

" Body temperature is regulated by negative feedback. The stimulus is when the body temperature exceeds 37 degrees Celsius, the sensors are the nerve cells with endings in the skin and brain, the control is the temperature regulatory center in the brain, and the effector is the sweat glands throughout the body."

"Body temperature is controlled by the hypothalamus in the brain. If the hypothalamus detects that the body is too hot, the response is that the body begins to sweat to try and reduce the temperature back to the correct level."

"Negative feedback (or balancing feedback) occurs when some function of the output of a system, process, or mechanism is fed back in a manner that tends to reduce the fluctuations in the output, whether caused by changes in the input or by other disturbances."

"Negative feedback brings a system back to its level of normal functioning. Adjustments of blood pressure, metabolism, and body temperature are all negative feedback"

7 0
3 years ago
Both mitosis and meiosis begin with a parent cell that is diploid. Which of the following best describes how mitosis and meiosis
ANEK [815]

Answer:

meiosis you will have four haploid cells (half the number of chromosomes is a diploid cell) and after mitosis you will have two diploid cells

Explanation:

Mitosis you begin with a parent cell that is haploid, it copies all it's chromosomes and splits so each daughter cell have the same number of chromosomes as the parent cell so both being diploid

In meiosis the chromosomes fold over DNA and are put in pairs, in the first division the pairs are split up evenly into two cells randomly (diploid still) but the the cells split the chromosomes in half in them creating four grneticly different haploid cells

7 0
3 years ago
I need the answer to 1,3,4,5, and 6
EastWind [94]
1- Synthesize this hormone
3- a decrease in the amount of glucose in the blood
4- may have fewer side effects then the insulin previously extracted from the pancreas of other animals
5- release of insulin
6- different parts of an individual's DNA are used to direct the synthesis of different proteins...
4 0
3 years ago
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