How many pairs of spinal nerves are there in the human body?

Answer:

Citric Acid Cycle

Explanation:

In this case, researchers observed a trade-off between the ability to tolerate harsh dry conditions and the ability to colonize deeper water. This type of trade-off can increase the fitness of only one phenotypic trait.

An evolutionary trade-off can be defined as an evolutionary mechanism where a trait can increase its adaptive fitness in the detriment of decreased adaptive fitness in another phenotypic trait.

In trade-offs, the evolutionary adaptive processes cannot optimize a given trait without compromising another.

A well-known example of an evolutionary trade-off is the balance between the number of eggs that a bird can produce in a determined clutch.

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Answer:

Reproduction is the manufacturing of offspring. There are  primary forms: sexual and asexual reproduction. In sexual reproduction, an organism combines the genetic statistics from each of its mother and father and is genetically unique. In asexual reproduction, one parent copies itself to shape a genetically same offspring.

Explanation:

Make sure to rewrite it in your own words, don't get caught cheating (for those who are.)

Answer:

A. Condensation

Explanation:

Condensation is the process that does not contribute to carbon cycling. It is the process by which water vapor in the air is changed into liquid water.

Answer:

Explanation:

#carry on learning

Answer:

False

Explanation:

A virus (which is a pathogen) has a lot of antigens on its surface, so they can't be used interchangeably.

Answer:

C

Explanation:

It will increase in speed.

Hopes this helps you.

The speed of sound waves will increase from air through a solid.

The speed of a wave increases with increase in density of a medium.

Sound waves travel fastest in solids and slowest on gases.

Therefore, the speed of sound will increase on moving from air to a solid.

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Answer:

"shown on the opposite page"

Explanation:

put that picture too

Answer:

Introduction Purpose: Explore the interdependence of organisms by  

performing an experiment with lima bean plants and earthworms. Question: How can the presence of one species benefit another in  

the same ecosystem?  

Hypothesis: If plants grow in soil containing worms, then the  

plant growth will be greater, because worms help decompose organic matter and distribute it through the soil in a form that plants can use.

Explanation:

Explanation:

Multiparous women often have HLA antibodies. The Western blot antigens are derived from HIV grown in human cell lines having HLA antigens. A cross reaction with HLA antigen(s) in the Western blot could have occurred.

Answer:

meristematic cells

Explanation:

Answer: When studying the museum’s collection of plant fossils for information about the climate, Wing and Barclay start with plant leaves.

Roughly 56 million years ago, during a time called the Paleocene Eocene Thermal Maximum (PETM), Earth’s average temperature rose four to eight degrees Celsius in less than 10,000 years. The cause was geologic processes releasing trillions of tons of carbon dioxide into the atmosphere. The dramatic shift in global climate forced massive upheaval in ecosystems around the world.

“It’s the best analogue for the climate change we’re experiencing today,” Barclay said.

Fossil plants and their leaves from the PETM show that ecosystems shifted massively because of the rapid increase in global temperature. But global warming during the PETM did not come from humans. So, scientists today are working on ways to extrapolate information from that period and apply it to the even faster and more drastic events of today.

Answer:

Higher temperatures disrupt the shape of the active site, which will reduce its activity, or prevent it from working. The enzyme will have been denatured .

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Answer:

species is the type of organism population is the amount of said organism

Explanation:

Proteins provides the building blocks for recovery and repair in forming new muscle

Answer:

Its B I took the test

Explanation:

Answer:

C. Remove 0.5 ml of Liquid

Remove 0.5ml of liquid to obtain a volume of 12.5 milliliters of liquid in graduated cylinder.

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Homologous chromosomes carry alleles of the same traits and therefore, carry the genetic information for the same trait.

Homologous chromosomes are a pair of chromosomes with the same gene sequence but of different origins - one paternal and the other maternal.

Thus, homologous chromosomes carry the same traits, although could be of different forms. For example, one of the chromosomes might carry a gene for tallness while the other might carry a gene for shortness even though both tallness/shortness represent a gene for height.

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Answer:

to absorb light—usually sunlight.

Explanation:

Answer:

An egg is released from the ovary

Ovulation is a crucial process in the female reproductive system, occurring as a part of the menstrual cycle. It involves the release of a mature egg (ovum) from one of the ovaries. The correct option is A. An egg is released from the ovary.

1. **Menstrual Cycle**: The menstrual cycle is the regular hormonal cycle that occurs in women of reproductive age. It typically lasts around 28 days, although the length can vary from woman to woman. The cycle is divided into different phases, with ovulation occurring during one specific phase.

2. **Follicular Phase**: The menstrual cycle begins with the follicular phase, where hormones, primarily follicle-stimulating hormone (FSH) and luteinizing hormone (LH), are released by the pituitary gland. These hormones stimulate the growth and maturation of follicles in the ovaries.

3. **Ovarian Follicles**: Within the ovaries, multiple tiny sacs called ovarian follicles contain immature eggs. Each month, one of these follicles becomes dominant and continues to grow while others degenerate.

4. **Mature Follicle Development**: As the dominant follicle grows, it secretes estrogen, a hormone that prepares the uterus for a potential pregnancy. The rising estrogen levels also trigger a surge in luteinizing hormone (LH) around the middle of the menstrual cycle.

5. **Ovulation**: The LH surge triggers the final stage of ovulation. It causes the mature follicle to rupture and release the mature egg from the ovary. The egg is swept into the fallopian tube by tiny hair-like structures called cilia.

6. **Fertilization**: The released egg remains viable for about 12-24 hours. If sexual intercourse occurs during this time and sperm are present in the fallopian tube, fertilization may occur. Fertilization is the process where the sperm penetrates the egg, resulting in the formation of a zygote (fertilized egg).

7. **Implantation or Menstruation**: If the egg is not fertilized, it will eventually disintegrate, and hormone levels will drop. This leads to the shedding of the uterine lining, causing menstruation to occur. On the other hand, if fertilization occurs, the resulting zygote will undergo several divisions and travel down the fallopian tube to the uterus, where it may implant into the uterine lining and develop into a pregnancy.

Ovulation is a crucial event in the female reproductive cycle, marking the release of a potential egg for fertilization. It is a key factor in determining fertility and the ability to conceive a child.

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Answer:

Chemical Energy!

Explanation:

A Battery is made of chemical energy!