how long does it take for a coffee tree to reach maturity

Answer:

B

Explanation:

The main function of a leaf is to produce food for the plant by photosynthesis.

Answer:  The correct answer is B. Leaves provide a place for photosynthesis to occur.

Explanation:  Confirmed correct.

Answer:

To find out the impact of environment on the physical structure of lizard and natural selection.

Explanation:

Ecologists conduct an investigation on the survival of a species of lizards in order to study the impact of environment on the physical body of lizard and natural selection. The ecologists find out that environment has direct impact on the body structure of lizard. Those lizards that spend more time on the ground, have longer legs in order to run fast, while on the other hand, species that lives in the trees usually have shorter legs in order to easily climb on the trees so these body structure helps them in survival and movement.

Answer:

D. Thick Stem

Explanation:

Answer:

It would increase.

Explanation:

Answer:

B

Explanation:

Answer:

oxygen are among the few simple molecules that can cross the cell membrane by diffusion. And Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane. The oxygen molecules move, by diffusion, out of the capillaries and into the body cells. While oxygen moves from the capillaries and into body cells, carbon dioxide moves from the cells into the capillaries.

Explanation:

Answer:

This is Diffusion........... :)

Answer:

epidemic

Explanation:

The situation in which a disease spreads over large area or effects a large population of people, the term used to denote is known as epidemic. The disease is caused for a short period of time. The disease is spread rapidly and the outbreak creates a havoc in the region. A particular country or area is infected by the epidemic. Pandemic refers to the spread of disease over many countries and continents. Epidemic when spreads to more countries it is termed as pandemic.

Answer:

Epidemic

Explanation:

Answer:

Because they are the same mussles and bones, that serve the same function

Explanation:

Answer:

amygdala

Explanation:

Answer:

Anger starts with the amygdala stimulating the hypothalamus, much like in the fear response. In addition, parts of the prefrontal cortex may also play a role in anger. People with damage to this area often have trouble controlling their emotions, especially anger and aggression. Epinephrine or adrenalin released by medulla of the adrenal glands, surges at the time of panic and emergency. It provokes stress response and brings out the arousal of extreme emotions like fear, anger or amusement.

Explanation:

hope this helps! brainliest?

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E. NADPH

Answer:

E

Explanation:

it enters the citric acid cycle and generates reducing equivalents in the form of NADPH

Answer:

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Explanation:

Frogs do not have outer ear which mammals have.

Frog is an amphibian

Integumentary system to protect skin from external environment., mammals have glandular skin.

skin to inhabit water habitat skin has glands, hair, mammary gland and fur

Frogs have two forelimbs and two hind limbs. mammals have 4 forelimbs.

presence of cloaca for waste, sperm and egg release while mammals have anus, urethra and genital openings for the purpose.

ADVANTAGES OF EXTERNAL FEATURES IN LIFESTYLE:

The frogs body id designed streamlined for swimming as presence of flat skull, no neck and small waist.

The skin allows exchange of gases and allows them to breathe through skin.

Powerful hind legs assist them in jumps.

they have 3 eyelid membrane that helps them see in water or land.

Answer:

Explanation:

Natural selection

Answer:

The Answer is C. Chloroplast

Explanation:

Chloroplasts are the organelle of photosynthesis. They capture light energy from the sun and use it with water and carbon dioxide to make food (sugar) for the plant. The arrangement of chloroplasts in a plant's cells can be seen in Figure below.

Answer:

Yes, the observed results are consistent with the theoretical distribution predicted by the genetic model. The population is in equilibrium.

Explanation:

Available data:

To know if these results are consistent with the expected ones, we need to develop a chi-square analysis. To do it we need the following information

- ∑ is the sum of the terms

- Obs are the Observed individuals

- Exp are the Expected individuals

- K =genotypes number = 4  

First, define the hypothesis:

Hypothesis: The allele of this population will assort independently. The population is in equilibrium

H₀= Individuals will be equally distributed.  

H₁ = Individuals will not be equally distributed.  

Second, we need to get the expected number of individuals with each phenotype. To do it, we will use the expected phenotypic ratio and the total number of individuals in the sample. We can just perform a three simple rule, as follows:

  16 ------------------------------------ 100 individuals in the sample ------- 100%

  9 yellow, normal ---------------- X = 56.25 individuals -------------------56.25%

  3 yellow, short ------------------- X = 18.75 individuals --------------------18.75%

  3 ebony, normal -----------------X = 18.75 individuals ---------------------18.75%

  1 ebony, short ---------------------X = 6.25 individuals ----------------------6.25%

Now that we know the expected numbers of individuals with each genotype, we can compare them with the observed ones.

                  yellow, normal      yellow, short     ebony, normal    ebony, short

Expected            56.25                    18.75                   18.75                    6.25

Observed            59                           20                      11                          10

The chi-square value = Σ(Obs-Exp)²/Exp.

So now we need to calculate (Obs-Exp)²/Exp

(Obs-Exp)²/Exp = (59-56.25)²/56.25 = 0.134

(Obs-Exp)²/Exp = (20 - 18.75)²/18.75 = 0.083

(Obs-Exp)²/Exp = (11 - 18.75 )²/18.75 = 3.203

(Obs-Exp)²/Exp = (10 - 6.25)²/6.25 = 2.25

X² = Σ(Obs-Exp)²/Exp =  0.134 + 0.083 + 3.203 + 2.25 = 5.67

P₀.₀₅ > X2

9.348 > 5.67

There is not enough evidence to reject the null hypothesis. The genotypes might be in equilibrium, and there might be an independent assortment.

Answer:

4 I think

Explanation:

The cytoplasm is home to many activities of the cell as it contains molecules, enzymes that are crucial in the break down of the waste. The cytoplasm also assists in metabolic activities. Cytoplasm provides shape to the cell. It fills up the cells thus enabling the organelles to remain in their position.

Answer:

below

Explanation:

Power equals work (J) divided by time (s). The SI unit for power is the watt (W), which equals 1 joule of work per second (J/s)

Answer:

Algae

Explanation:

Answer:

Currents and waves

Explanation:

Depending on the way that the currents are and the way the wind moves. This factor can change the way the graph determines depth.

Answer:

The correct answer would be - solar energy.

Explanation:

Solar energy or the light energy that comes from the sun is one of the major sources of energy for all living forms directly or indirectly. There would be no life without solar energy on earth.

Solar energy is responsible for the food and energy of each and every living organism. Plants produce their food with the help of sunlight or solar energy and the rest of the other organisms depend on this food for their food and energy.

Answer:

It is either the epiglottis or larynx

Explanation:

Answer: unplugging electronics when not in use

Explanation:

Carbon footprint is the measure of the amount of carbon liberated into the atmosphere due to human oriented activities like burning of fossil fuels, deforestation, liberation of toxic gases including carbon monoxide and carbon dioxide into the atmosphere by the factors and automobile vehicles. To stop the carbon releasing activity in US homes one must unplug the electronic not in use because electronics consume a lot of electrical energy every day this electrical energy comes from thermal power plants which typically use coal to harness energy the combustion of the coal liberates carbon dioxide and carbon monoxide in the environment so creating pollution and increases the carbon footprint. Little will be the usage of electricity little will be the burning of coal and it will decrease the carbon footprint.

Answer:oml people just be sayin anything these days the real answer is B

Explanation:

Answer:

The answer is C: Migratory sea birds.

Explanation:

Sea birds that are migrating would not only just fly above the spill and nestle on the trees, but they could eat crabs and other animals that scurry around on the shore as a food source due to the death of their primary source of food, fish.

Answer:

Over time, most males will have bright and large tails. Females only mate with males carrying these traits, and so natural selection will favor them.

Explanation:

Bright and large tails are traits that reflect the genetic quality of males. So individuals with the most vibrant color and length express better capabilities of finding food, competing for resources, competing for males, among others, are the best option to mate and to ensure successful offspring.

The brightest and largest tails are, the better chances males have to mate and pass their genes to the following generations. So the organism spends energy and resources to produce more vibrant colors and longer feathers to enhance mating chances.

Females must ensure their reproductive success, so sexual selection is the pressure modeling males in this species. Females will only choose individuals with the better genetic charge to mate -individuals with brightest and largest tails-, so their progeny can have better genes and higher survival probabilities.

Males with the brightest and largest tails will mate and reproduce. They will pass their genes to their progeny. Male offspring will also have bright and large tails because they inherit these conditions from their parental. These male offspring will also pass their genes to the progeny, and so on. The frequency of the alleles that express these traits will increase in the population. Natural selection is favoring these alleles. So over time, there will be much more individuals with bright and large tails than individuals with dull and small tails.

Answer:

25% that they would have a black chick

Explanation:

50% of the offspring have genotype BW, 25% are BB and 25% are WW. This means that 50% of the offspring are erminette, 25% are black, and 25% are white.

Hope this helps!!

Answer:

the answer is d

........

Answer:

D) a population of salmon with different skin colors that attract mates

Answer: B. 2EF3 + 3G2H → 6GF + E2H3

Explanation:

In these chemical equations, each letter represents a different element the correct equation is B. 2EF3 + 3G2H → GF + E2H3.

A balanced equation is an equation for a chemical response wherein the wide variety of atoms for every detail withinside the response and the overall fee is the identical for each the reactants and the products. In different words, the mass and the fee are balanced on each aspects of the response.

Here this equation is balance  2EF3 + 3G2H → GF + E2H3 as all are balanced.

Read more about the element:

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Answer:

C. Endoplasmic Reticulum.

Explanation:

The Endoplasmic Reticulum also includes ribosomes attached to the membrane and can produce protein.

I hope this helps you! :)