Describe some of the changes in the land and in life-forms that occurred at the end of the Paleozoic Era.

Answer:

you could literally just look them up

1. Deoxyribonucleic Acid

2. In biology, a gene is a basic unit of heredity and a sequence of nucleotides in DNA or RNA that encodes the synthesis of a gene product, either RNA or protein. During gene expression, the DNA is first copied into RNA.

3. nucleus

Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA).

4. As described above, DNA can be found in three organelles: the nucleus, mitochondrion, and chloroplast. Only eukaryotes have a nucleus, which is a large structure that's surrounded by a membrane. Nuclear DNA comes in the form of long, linear pieces of DNA called chromosomes.

Answer:

The adaptation of a plant in an environment ( for example,desert) depends on the structural parts of the plant which enables it to complete it's life cycle.

Explanation:

Plants are found in different types of environment. They need to possess and show some features that will enable them to live successfully and reproduce in that particular environment. Such features may be structural, functional or behavioural which are known as ADAPTATIONS.

Furthermore, in environment where there is scarcity of water supply, plants known as xerophytes can survive or thrive. They show the following adaptations:

--> well developed roots: the roots grow down to great depths if necessary and branch extensively in order to absorb water from as large an area as possible.

--> presence of swollen stems: These stems contains water storage cells which are called succulents. They help the plant withstand long period of drought.

--> Reduced leaves: This helps in reducing water loss from leaves through transpiration. For example in plants like the cacti, the leaves are reduced to spines.

Therefore, these structures helps the plant survive in its present environment.

Answer:

Water and carbon (IV) oxide

Answer: Part A. 1. 159.5mm, 3. If they go 16cm per 29 years it would take 90 years to go 50cm 4. probably because the earthworms don’t go below 1 meter deep so rocks don’t go deeper.

Explanation:

Answer:

time? maybe I'm not to sure but I wanted to help

Answer:

B - 6 picograms

Explanation:

When a cell divides mitotically, the end result is 2 identical daughter cells. With that being said, the cell that is produced will also have the same amount of DNA and, therefore, the same DNA mass of 6 picograms.

Hope this helps you! Have an awesome day!

Answer:

In all types of OCA and some types of OA, albinism is passed on in an autosomal recessive inheritance pattern. This means a child or something else has to get 2 copies of the gene that causes albinism

Answer:

Involuntary

Explanation:

Hope that helps ;)

Answer:

Involuntary

Explanation:

Cardiac muscle is also an involuntary muscle, found only in the heart. The cardiac muscle fibers all contract together, generating enough force to push blood throughout the body.

Mr. Joe Biden is the current president of the USA.

Answer:

90%

Explanation:

Answer: $186 million or 36 million pounds

Explanation:

https://www.fisheries.noaa.gov/national/aquaculture/us-aquaculture

Answer:

A. anther

B. receptacle

C. sepal

D. petal

F. filament

H.

J.

K. pollen tube

L.Ovary

O. Ovule

P. Style

* I'm confused with H and J

Answer: Structure of DNA: double-stranded helix held by complementary base pairs. DNA carries the genetic information for making proteins. The four bases A, T, C and G make up the genetic code. The base sequence determines amino acid sequence in protein.

Explanation:

Answer:

1. the force that attracts a body towards the centre of the earth, or towards any other physical body having mass.

2. The sun's gravity keeps Earth in orbit around it, keeping us at a comfortable distance to enjoy the sun's light and warmth. It holds down our atmosphere and the air we need to breathe

3. distance between objects

masses of the objects

Explanation:

The magnitude of the gravitational force between two objects is given by

where  G is the gravitational constant  m1 and m2 are the masses of the two objects  r is the distance between the two objects

By looking at the formula, we see that the gravitational force is affected only by two quantities:

- the masses of the objects, m1 and m2

- the distance between the objects, r

4. Gravitational force -an attractive force that exists between all objects with mass; an object with mass attracts another object with mass; the magnitude of the force is directly proportional to the masses of the two objects and inversely proportional to the square of the distance between the two objects.

5. Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.

Hope i helped! xoxo

Answer:

you should make a powerpoint  

Explanation:

1-the force that attracts a body towards the centre of the earth, or towards any other physical body having mass.

2-Gravity is very important to our everyday lives. Without Earth's gravity we would fly right off it. We'd all have to be strapped down

3-Newton's law also states that the strength of gravity between any two objects depends on two factors: the masses of the objects and the distance between them.

Objects with greater mass have a stronger force of gravity between them. ...

Objects that are closer together have a stronger force of gravity between them.

4-5-Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.

it's all from the internet

Answer: Chemical Digestion = mouth, pancreas, stomach, small intestine

Explanation: Hope this helps!

Answer:

Chemical Digestion = mouth, pancreas, stomach, small intestine

Explanation:

Answer:

relating to the branch of science concerned with the processes and phenomena of the atmosphere, especially as a means of forecasting the weather.

Explanation:

Answer:

is related from the wheater

Answer:

For each glucose that enters glycolysis,  2 acetyl CoA enter the citric acid cycle.

Explanation:

SYNTHESIS OF 2Acetyl CoA -:

The glucose is transformed into 2pyruvate (6 carbon molecules are converted into 2 -3 carbon molecules) during glycolysis. In both aerobic and anaerobic respiration, glycolysis occurs frequently. This process takes place in the cytoplasm (it does not require oxygen or mitochondria), but if both oxygen and mitochondria are present, two molecules of pyruvate join mitochondria and prepare for citric acid cycle.

Until entering this, the molecules go through a mechanism known as the linked (connects glycolysis with citric acid cycle) reaction, in which the pyruvate molecule is transformed into 2 acetyl CoA (meaning 3 carbon molecules are converted into 2 carbon molecules) and a carbon molecule is released in the form of [tex]2CO_2[/tex] (waste product).

2NAD+ and NADH are synthesized in the linked reaction, implying that reducing power is produced. It means that electrons from pyruvate are released in the form of hydrogen, which 2NAD+ accepts and reduces to form 2 NADH.          

[tex]Glucose[/tex] → [tex]2pyruvate[/tex] → [tex]2Acetyl CoA[/tex]

Linked reaction is also known as oxidative -dicarboxylation.

Hence,  2 Acetyl CoA is required to enter citric acid cycle.  

Answer:

D. by helping the cells extract energy from food

Explanation:

Fungi are decomposers so they normally need some sort of food to grow. To get the energy to grow, they extract it from the food. Fungi will get their energy from dead animals, dead plants, etc.

Answer: Cl2

Explanation:

Answer:

They connect through a cycle

Explanation:

Both plants and animals can be a food source for animals. Plants also create an environment so that animals can live with less complications

Answer:

they have to be smart

Explanation:

...........

Answer:

They need to be creative, logical, analytical, and good at communication.

Explanation:

hope this helps!

Hello!

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First...

Anoles are a genus of lizards native to the Caribbean, Central and South America. As some species can change color they have been called chameleons of America. There are 425 species according to the latest research.

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Yes, since the Anolis sagrei inhabits humid lowland forests and dry lowland forests. Apparently it prefers areas that have very low or little ground cover (18, 23).The green anole lizard, Anolis carolinensis, has adapted to living in the tree canopy and can lead to speciation, Different species of anoles have different dewlaps, and very different vegetation.

I hope I've helped :D

Greetings

atte:

Ángela

❤️

Answer:

hey friend..... here is your answer....

the shape of DNA is double helix

Answer:

it is ectoderm

Explanation:

Explanation:

p =w/t

160=3200/t

t=3200/160

t =20second

Answer:

D. Both plant and animal cells

Explanation:

The explanation is that animal and plant cells are eukaryotic cells which means they have a nucleus which contains and protects the genetic material. Bacteria is a prokaryotic cell which means it does have genetic material but doesn't have a nucleus.

Answer:

The air in New York moves to the north.  

Explanation:

At a global level, it occurs unequal warming of the atmosphere, which depends on many factors and varies with latitude. These temperature differences occur because solar radiation reaches the earth differently at different latitudes degrees. The result is the formation of convective cells of atmospheric air circulation: Hardley cell, Ferrel cell, and Polar cell.    

The term convective cell refers to air getting warm, expanding, getting less dense, and ascending. During ascension, it gets colder because of the change in high, contracting, becoming thicker. Finally, it descends.

In each hemisphere, warm air ascends at the equator and approximately at 60º latitude. Cold air descends at approximately 30º latitude and the poles. These air masses circulation generates superficial winds that blow toward the equator between 0º-30º, and toward the poles between 30º-60º lat.  

Ferrel cell occurs between 30º and 60º latitude. At 30º lat, the cold air coming from the north in the tropopause meets the cold air coming from 0º, and both descend to lower altitudes due to its density and low temperature. When these air masses reach the ground, they diverge.  One part goes to 0º lat, while the other part goes forward to the north.  As it moves north, it gets warmer for being at lower altitudes. At 60º, this warm air coming from the 30º meets the polar air coming from 90º, and as it is warmer it ascends again. When it ascends to the tropopause, it is pushed by new air and moves to the south again. While doing so, it loses heat and becomes denser, descending again at 30º.  And so the cycle starts all over again. New York is located at 40º latitude approximately, so air goes forward to the north pole near the ground, but at 60º it elevates again. New York is then affected by the Ferrel cell.        

In the attached image you will find the three cells, circulating in different directions.  

Answer:

0.75

Explanation:

a frequency of 1.0 occurs when all the flowers are red

A garden that contains 40 flowers, 30 of which are red. Then, the frequency of red flowers is 75% of 1:3.

Frequency is the number of occurrences of a repeating event per unit time. It is also referred to as the temporal frequency for clarity, and is distinct from angular frequency. Frequency is usually measured in hertz (Hz) which is equal to one event per second.

Gene frequency is the fraction or percentage of a population which carries a particular allele at a particular gene locus. In this case, a garden has 40 flowers, in which 30 are red.

Therefore, the frequency of red flowers = Number of red flowers/ Total number of flowers

The frequency of red flowers = 30/ 40 = 75% or 1/3

Learn more about Frequency here:

https://brainly.com/question/5102661

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Answer:

Answer of this qurstion is true