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asambeis [7]
3 years ago
13

What do bones contain?

Biology
1 answer:
Kaylis [27]3 years ago
7 0

Answer:

Made mostly of collagen, bone is living, growing tissue. Collagen is a protein that provides a soft framework, and calcium phosphate is a mineral that adds strength and hardens the framework. This combination of collagen and calcium makes bone strong and flexible enough to withstand stress.

Explanation:

hope that helps

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He reflexes from sense organs in the head are co-ordinated by the brain.
oee [108]

Answer:

sense of touch

Explanation:

There are five sense organs that involved vision, hearing, taste, smelling, and touch.

Sense of touch is involved in a reflex coordinated by the spinal cord as when we touch something, sensory nerves sends the information to the brain and spinal cord. the motor nerves process the signals in the brain and send it back to the muscles, that leads to contraction reflexively.

Hence, the correct answer is "sense of touch".

8 0
2 years ago
During the luteal phase of the ovarian cycle, progesterone secretion peaks and estrogen levels decrease. along with these change
Radda [10]
<span>During the luteal phase of the ovarian cycle, progesterone secretion peaks and estrogen levels decrease. along with these changes, there is a corresponding increase in a woman's basal body temperature. In this phenomenon, i</span>t is not the increase in progesterone, but the decrease in estrogen that may signal an increase in overall body temperature. This is because the decrease in estrogen reduces the negative feedback signal to the hypothalamus, the thermoregulator for the body. The result is an increase in overall basal body temperature.
4 0
2 years ago
Why do scientists use models to study changes to the earth’s surface
Stells [14]
Because it’s time consuming and money consuming to observe from space so models are required
6 0
3 years ago
Which best describes a gene
motikmotik

Answer;

a segment of chromosomal DNA

Explanation;

A gene is a  hereditary unit consisting of a sequence of DNA that occupies a specific location on a chromosome and determines a particular characteristic in an organism. Genes undergo mutation when their DNA sequence changes.

It is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins.  However, many genes do not code for proteins.

Alleles are forms of the same gene with small differences in their sequence of DNA bases. These small differences contribute to each person’s unique physical features.

5 0
3 years ago
Read 2 more answers
Prokaryotes divide by binary fission, a form of asexual reproduction in which
evablogger [386]

Prokaryotes divide by binary fission, a form of asexual reproduction in which a cell divides into two cells with identical genetic information.

Explanation:

Binary fission and mitosis can be viewed as the same principle of  asexual reproduction to give out two identical cells. However, the major difference between the two is that binary fission is to prokaryotes and mitosis is to eukaryotes. Remember that prokaryotes do not have a true nucleus (they have a nucleoid) hence binary fission does not involve the dividing of the nucleus. Mitosis does.

Sexual reproduction is responsible for creating variation in offspring especially due to the process of meiosis in gamete development and subsequent fertilization of two gametes from different parents.

Learn More:

For more on binary fission check out;

brainly.com/question/13807858

brainly.com/question/917537

#LearnWithBrainly

6 0
3 years ago
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