A trait that helps an organism to survive and reproduce is called an...
a. Adaptation
b. Allele
c. Variation
d. Selection

Answer:

**paragraph 1**

When it's is tilted towards the sun it is *Summer solstice* and when it is away from the sun it is *winter solstice*

There are four seasons: summer, winter, autumn and spring. Generally speaking, it is warmer in the summer than in the winter. Autumn and spring are intermediate seasons.

Seasons change due to the revolution of the earth around the sun. For instance, during the winter season in the Northern Hemisphere, the North Pole faces away from the sun, so the areas in the northern hemisphere get less light than during the summer when the North Pole faces towards the sun. With less solar radiation, the Northern Hemisphere is cooler during the winter than during the summer. This process is reversed in the Southern Hemisphere. So winter in the Northern Hemisphere is summer in the Southern.

**paragraph 2**

Equinox is the position of the earth on 21st March and 23rd September. Both the hemispheres experience equal day and equal night.

solstice: the time or date (twice each year) at which the sun reaches its maximum or minimum declination, marked by the longest and shortest days (about 21 June and 22 December).

We have 24 hours during both the solstices (summer and winter)

the hours change due to better light and night forms.

Most years, this happens on either Sept. 22 or 23. However, every once in a while, the autumn equinox can occur on Sept. ... "Because of leap years, the dates of the equinoxes and solstices can shift by a day or two over time, causing the start dates of the seasons to shift, too," according to The Old Farmer's Almanac.

You can do the paragraph 3 by yourself, I'm not sure about that..

Explanation:

hope it helps you

please mark as BRAINLIESt

this took me a lot of time

A base analog that can cause A-T > G-C or G-C>A-T transitions.

Thymine's base analog is 5BU. The thymine analog 5BU pairs with Guanine while thymine pairs with Adenine. The bromine atom in 5BU can switch between its keto and enol forms.

During replication, an A-T pair generates an A-5BU pair when 5BU in keto form replaces the thymine. The unusual enol form of 5BU pairs with G in the first mutagenic phase of replication, and then G couples with C in the subsequent replication cycle. Consequently, the change from the A-T to the G-C pair takes place.

Rarely, the 5-BU in enol form can function as a cytosine analog. This causes C to be replaced by 5BU, turning the G-C pair into a G-BU pair, which eventually transforms into an A-T pair during the second replication cycle.

Therefore, 5BU is a base analog that can lead to transitions from A-T to G-C or G-C to A-T.

To know more about 5BU here:

https://brainly.com/question/29906610#

#SPJ4

If a plant has vascular tissue, megaphylls, and seeds, but not flowers, then it is a gymnosperm. Correct answer: letter E.

Because this type of plants have all these characteristics and reproduce by seeds and pollen, and are the dominant plants in the preangiosperm world.

If a plant has vascular tissue, megaphylls, and seeds, but not flowers, then it is a(n):

Group of answer choices:

A. lycophyte

B. Fern

C. Bryophyte

D. Angiosperm

E. Gymnosperm.

Learn more about the Gymnosperm:

https://brainly.com/question/16166196

#SPJ4

Answer: Biomagnification refers to the process by which the concentration of a contaminant increases as you move to higher trophic levels in a food chain or food web. In other words, as organisms consume other organisms, the contaminants present in the prey accumulate and become more concentrated in the bodies of the predators.

To understand this process, let's consider an example involving a water ecosystem. Suppose a pollutant is released into the water, such as a pesticide or heavy metal. The primary producers, such as algae or aquatic plants, absorb small amounts of the contaminant from the water. As herbivorous organisms consume these primary producers, they ingest the contaminants along with their food.

Since the contaminant is not easily broken down or eliminated from the organisms' bodies, it accumulates over time. As a result, the concentration of the contaminant becomes higher in the herbivores than in the primary producers. Now, when carnivorous organisms consume the herbivores, they not only accumulate the contaminant from their own food but also from all the prey they have consumed. This leads to an even higher concentration of the contaminant in the carnivores.

Therefore, biomagnification describes the phenomenon where the concentration of a contaminant increases significantly as you move up the food chain or trophic levels. The highest concentration of contaminants is often found in top predators, such as large fish, birds of prey, or mammals, which can have adverse effects on their health and reproductive capabilities.

It's important to note that biomagnification primarily occurs for persistent and non-biodegradable contaminants that cannot be easily metabolized or excreted by organisms. These contaminants are often lipophilic (fat-soluble), which allows them to accumulate in fatty tissues and remain in the organism's body for long periods, leading to biomagnification.

Explanation:

Answer: The correct answer is C, seed. Seeds are not used in vegetative propagation; instead, vegetative propagation involves taking parts of existing plants and using them to create new plants. This can include taking cuttings from stems, leaves, and roots.

Answer:

Ofcourse it does

Explanation:

Imagine one person have flu and he or she goes to met someone who is healthy but when they talk other infected person's flu goes to other healthy person and that new infected person goes to another and they go to another and thats how it seperate. But we have solution for this the first infected person need to wear mask so that his or her flu don't pass out to anothers.

The terms that refer to the part of the PNS that carries signals from various receptors to the CNS is the afferent division of the PNS. Afferent Division of the PNS The afferent division of the peripheral nervous system (PNS) is also known as the sensory-somatic nervous system.

It is made up of nerve cells that are responsible for receiving sensory information from the external world and transmitting it to the central nervous system (CNS).Afferent nerves can be found in almost every organ of the body. Afferent nerves, for example, receive signals from sensory receptors in the skin, eyes, ears, nose, and tongue, as well as from internal organs such as the stomach and bladder.

Afferent nerves transmit sensory information from these areas to the spinal cord, which then sends the information to the brain for processing. When this occurs, a person becomes aware of what is happening in their environment and can respond accordingly. In a nutshell, the afferent division of the peripheral nervous system carries signals from various receptors to the CNS.

To know more about nervous Visit;

https://brainly.com/question/30290418

#SPJ11

Answer:

Whatever the state of matter may be, all matter is made of tiny particles called atoms. These particles are too tiny to see with the naked eye; they're even too small to see with a regular microscope.

Explanation:

hope this helps

brainliest plz

Answer:

Neither the solute nor the solvent (water) will move in any direction

Explanation:

Concentration of salt with in the cell = 2%

Concentration of salt of the solution in which the cell is placed is 2%

Since there is no change of concentration of salt with in cell and outside the cell. Hence, there will be no net movement of solute or solvent.

Gram Staining: Gram staining is a laboratory procedure used to identify big bacterial groupings using staining techniques. To identify between gram-positive and gram-negative bacteria, peptidoglycan is stained. The gram staining procedures involve the use of a counterstain, iodine decolorizer, and crystal violet dye.

Because they have a thick peptidoglycan coating, gram-positive bacteria show up violet during the gram staining procedure. A crystal violet stain is still present in the thick layer. The gram-negative bacteria are covered in a thin layer of peptidoglycan and lose their violet color throughout the decolorization process. Iodine serves as a mordant rather than a stain. The peptidoglycan layer aids in holding the crystal violet in place. In the absence of iodine, it would look purple rather than pink. The gram-positive bacteria's cell wall holds onto the violet hue and prevents it from leaking out during decolorization.

To know more about gram staining, visit-https://brainly.com/question/15011186

#SPJ4

The map shows the Mediterranean Sea and the countries that border it. The country that is labeled with the letter A is Egypt. This is the country that Saad Zaghlul fought for.

Saad Zaghlul was an Egyptian nationalist who fought against the British for three years to establish Egypt's independence. He was born in Egypt in 1859 and died in 1927.

The country that Saad Zaghlul fought for is Egypt. Egypt is a country located in North Africa. It is bordered by Libya to the west, Sudan to the south, the Red Sea to the east, and the Mediterranean Sea to the north. Egypt has a population of over 100 million people. The capital of Egypt is Cairo.

Find out more on Saad Zaghlul here: https://brainly.com/question/1114643

#SPJ1

Answer:

The working assumption for many years was that, like North American bison, European bison evolved from steppe bison. ... Their results suggest that the European bison is the result of inter-breeding, over 120,000 years ago, between steppe bison and aurochs; the wild ancestors of modern domestic cattle.

Our study suggests that the first bison arrived in North America 195 - 135 thousand years ago over a land bridge between Asia and Alaska. They quickly spread and evolved (changed) into different forms to adapt to their new environments.

*insert JIMIN'S ROCK BISON pic here*

Explanation:

I.d.k what answer ur expecting from this sentence army.

so I just gave more info regarding this..lol.

The correct order of steps through which ATP synthesis occurs during the light-dependent reactions of photosynthesis in plants are given below:

Photosynthesis may be defined as a reaction that utilizes the carbon dioxide present in the environment and makes foods (glucose) in plants in the presence of sunlight.

The other two options which are not given in the question are:

Therefore, it is well described above.

To learn more about Photosynthesis, refer to the link;

https://brainly.com/question/19160081

#SPJ1

Answer:

Plant and animal wastes decompose, adding nitrogen to the soil. Bacteria in the soil convert those forms of nitrogen into forms plants can use. Plants use the nitrogen in the soil to grow. People and animals eat the plants; then animal and plant residues return nitrogen to the soil again, completing the cycle.

Answer:

pyroclastic flow

ash cloud

The correct option is  A;  Restricted range, narrow habitat tolerances, and small local populations ,

Net reproductive rate (r) is computed as r = (births-deaths)/population size, or simply multiply by 100. Because the population is so much larger, many more people are added.

The second type. A Type II survivorship curve can be found in many bird species. Organisms die more or less evenly at each age interval in a Type II curve. Organisms with this type of survivorship curve may also have a small number of offspring and require a lot of parental care.

A habitat is the broad location in which an organism lives, whereas a niche is the set of physical and biological conditions in which a species lives, as well as the means by which the species obtains what it requires to survive and reproduce.

Learn more about to Restricted range

https://brainly.com/question/28148749

#SPJ4

Answer:

c

Explanation:

According to a publishing proverb, you can never go wrong with books on Lincoln, Hitler, and dogs; another version lists golfing, Nazis, and cats.

What did Hitler do that was his biggest mistake?

The Soviet Union invasion by Hitler was his biggest error. The German invasion of the Soviet Union, which began on June 22, 1941, and was given the name Frederick Barbarossa after the Holy Roman emperor of the 12th century, marked a significant rupture in the 1939 Nazi-Soviet pact.

"If you want to shine like the sun, burn like it first." Additionally, I can only fight for causes that I love, respect, and at the very least, know about. "Victory can be handled by anyone. Only the strong can endure defeat.

to know more about Hitler's bogus here:

brainly.com/question/12778492?

#SPJ1

Human embryos are most sensitive to the effects of teratogens that cause limb deformities during the period of limb development, which occurs during the embryonic period between approximately weeks 4 to 8 of gestation.

During this time, the limb buds, which will develop into the arms and legs, are formed, and the process of limb differentiation and growth is underway. Any disruption to the genetic or environmental cues that regulate this process can potentially lead to limb deformities, such as missing fingers, toes, or entire limbs, or abnormal limb shapes or sizes.

Teratogens are substances or agents that can interfere with normal embryonic development and cause birth defects. Some examples of teratogens that can cause limb deformities include certain drugs (e.g., thalidomide), chemicals (e.g., ethanol), and infections (e.g., rubella virus).

To know more about Teratogens here

https://brainly.com/question/31107909

#SPJ4

Answer:

Die, eventually.

Explanation:

It's very dangerous, for any organism, but for a fish whose cells are isotonic with freshwater,  is placed in seawater, its cells will take on excess water, lyse, and the fish will die.

Answer:

A sound wave is a vibration.

Explanation:

A compound that binds to the surface of an enzyme, and changes its shape so that a substrate cannot enter the active site, is called a noncompetitive inhibitor.

An enzyme inhibitor is a molecule that binds to an enzyme to disrupt its normal activity. They can be divided into two categories: competitive inhibitors and noncompetitive inhibitors.

A noncompetitive inhibitor is a molecule that binds to an enzyme at a site other than the active site, causing a conformational shift in the enzyme that leads to a reduction in the enzyme's activity. The inhibitor does not compete with the substrate for access to the active site. It binds to the enzyme's allosteric site, which is distinct from the active site. The inhibitor changes the shape of the enzyme in a way that prevents the substrate from binding to the active site, lowering the rate of reaction without interfering with the enzyme's ability to bind the substrate.

Your question seems incomplete. The completed version should be as follows:

A compound that binds to the surface of an enzyme, and changes its shape so that a substrate cannot enter the active site, is called a(n)

Learn more about enzyme inhibitor at https://brainly.com/question/27748273

#SPJ11

Answer: Energy, Rest, Mental stability,

Explanation:

Those who work the night shift often live shorter than others due to the lack of a normal circadian rhythm and sleep deprivation as some might find it hard to sleep during the day.

Answer:

yes, it is correct because ik that it's B

Explanation:

it is

Answer:

It’s D

Explanation:

Answer:

ufyfyfyfufuf7f7f7f

h

Explanation:

hhhh4uu4u4j4j4j4u4u4u4u4u4u4u