Which is a requirement for natural selection to occur?

The genotype of the parents of black puppies are dominant. The two parents can be homozygous (BB) or heterozygous (Bb) dominant.

The genotype of an organism refers to the complete set of genetic material in an organism. Genotype can also be used to refer to all the alleles or variants an individual carries in a particular gene or genetic location in the DNA.

In labrador dogs, black coat color is dominant over brown coat color. If black labrador is mated with brown labrador and the offspring produced all eight are black colored that is dominant. Then, in this case the genotype of the parents will be:

If all the offspring are black colored, this means that each puppy has at least one dominant allele 'B' in their genotype. So, it can be predicted that both the parents should be at least heterozygous for this character. If both the parents are heterozygous then, some of the offspring can have brown color coat as well. So, the parents should both be homozygous or one homozygous and one heterozygous for this trait.

This can be shown through punnett square.

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Answer:

3 ( 2 + 1 )

Explanation:

Answer:

Answer:

plants store the glucose they produce, resulting in them gaining mass. that should be the correct answer

Answer:

Disrupts the nitrogen cycle by contaminating the groundwater and making it more difficult for the plants to absorb the nitrogen and causes the phosphorus cycle to accelerate, resulting in an excess of phosphorus in water and soil.

Explanation:

The precipitation affects the phosphorus cycle in many ways where the soil erosion will take place if the precipitation happens then the weathering of rocks along with the soil getting off will make the nutrients loss in the soil.

What is the cycle of rain called as ?

The cycle of the rain is  called as water cycle where the evaporation along with the condensation takes place.

If the precipitation level in the atmosphere is increased then in this case it will increase the transportation of phosphorus along with the other nutrients into soil along with the water sources and the coastal areas as well.

The main reasons of such scenario is because of the deforestation, loss of habitat by the continued invasion of human activities in the natural resources. The reduction of nutrients loss in  soil makes an huge impact over the  phosphorus cycle.

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Answer:

add the answers if you dont know

Explanation:

Answer:

KC is looking at cells in biology class, but he doesn't know where they came from. He sees that the cells under his microscope have cell walls and chloroplasts. Therefore, KC is likely observing cell from:

A leaf that got blown onto the floor.

Plant cells are the only cells w/ chloroplast!

Explanation:

pick me as the brainliest

Answer:

Epithelial tissues are widespread throughout the body. They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands.

Explanation:

Hope this helps and have a great day.

Answer:

Aerobic Respiration

Explanation:

Aerobic (in the presence of oxygen)

Anaerobic (absence of oxygen)

Glycolysis (central pathway for glucose{sugar} metabolism)

Fermentation (chemical breakdown of a substance by bacteria, yeast or other microorganisms and the escape of gases and heat)

Answer:

respiration

Explanation:

Answer:

g

Explanation:

Answer:

A.

Explanation:

Because when the wolf numbers are low the deer numbers are high which means that the wolves have not been eating the deer, possibly because of a lack of wolves.

Answer:

its c

Explanation:

Answer:

C. to do work

Explanation:

Explanation:

this is hereditary. the male is carrying bad genes and if they are dominant then the offspring will most likely get it too. I hope this helps!!!

Answer:

seismic energy I think if I get it wrong I'm sosososososo sorry have a good exam!

Answer:

Mastermix in PCR helps in providing faster and easier setup with pipetting, proper mixing, reduction in contamination and controlling fir variation in pipeting or tube to tube variability. Contents of PCR master mix for the desired reaction are as follows:

The only difference in negative control for the PCR master mix is template or the different primer rest the components are the same in the master mix.

Answer:

Macrophage

Explanation:

They do this through a process called phagocytosis

The following engulfs pathogens or an invading virus or bacteria - macrophage.

Thus, The following engulfs pathogens or an invading virus or bacteria - macrophage.

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Answer:

2 only

Explanation:

Answer:

there are 2 genders: the male and female

Answer: Incomplete dominance

Answer: I think it is 105 grams

Explanation: Because classic chem and math states 100+5= 105

The final mass of the products if the gas is trapped in the container will be 105 g

From the law of conservation of matter, we understood that mass can neither be created nor destroyed during a chemical reaction but can be transferred from one form to the other.

This implies that the total mass of  reactants must be equal to the total mass of products i.e

Total mass of reactants = Total mass of products

Considering the question given above, the following data were obtained:

Mass of vinegar = 100 g

Mass of baking soda = 5 g

Total mass of reactant = 100 + 5 = 105 g

From the question given above, we also discovered that the gas produced were trapped in the container.

This simply means that the total mass of reactants (i.e 105 g) will also be equal to the total mass of the products.

Thus, the total mass of the products is 105 g.

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It's either 3.5 or 1.2

There would be more evidence spread out through space to be noticed by scientists and it seems like a stretch to go as far back as 4 billion years ago.

(I mean really? That much before the DINOSOURS died? I don't think so)

◕‿◕

Hope this helps

Miri

Answer:

If a species has a number of chromosomes 2n = 18, then its somatic cells have 16 autosomes.

Explanation:

Somatic cells are diploid, that is, they have the complete chromosomal charge, and it is represented as 2n. In organisms with sexual reproduction the chromosomes are divided into autosomes and sex chromosomes, which are 2.

If a species has a number 2n = 18, it means that its somatic cells have 18 chromosomes, of which 16 are autosomes and 2 are sex chromosomes. Autosomes contain the structural and functional characteristics of an individual, while the sex chromosomes determine sex.

Answer: im a cat boy senpai

Explanation: meow ^^

Answer:

A cold front forms at the leading edge of the colder air mass the cold front can bring thunderstorm in the region whereas the occluded front can bring strong winds and precipitation. so its probably d

Occluded fronts cause rapid changes in weather conditions, while cold fronts cause widespread cloud formation. Therefore, option (D) is correct.

Because of their different densities, large masses of warm air and cold air do not mix when they come into contact with one another. They instead organize themselves into a front that is typically hundreds of miles long. When a warm air mass is sandwiched in between two cold air masses, the result is a phenomenon known as an occluded front. The mass of warm air rises as the masses of cool air push against one another and meet in the middle. The warm air mass is occluded, which literally means "cut off," from the ground, and pushed upward, which causes the temperature to drop. These types of fronts are known to bring blustery winds and significant precipitation.

Occluded fronts typically develop near low pressure areas that have reached their mature state.

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Answer:

peripatric speciation

Explanation:

When small groups of individuals break off from the larger group and form a new species, this is called peripatric speciation

☁️My Answer☁️:

The mass of the proton is the sum of the mass of current quarks and the binding gluons. The mass of the proton is-

⬇️

Proton mass mp = 1.672621898(21)×10−27 Kg

The Mass of proton is higher than the mass of electron.

☼Mass Of Proton In Other Units☼:

The mass of the proton can be expressed in alternative units like – proton mass AMU, the mass of the proton in kg, proton mass MeV. The table given below comprises the value of proton mass and corresponding units.

✯Proton mass✯:                             ∞Value∞:

Mass of the proton in kg                  1.672621898(21)×10−27 kg

Mass of the proton in grams            1.672621898(21)×10−24 g      

Mass of proton in AMU                    1.007276466879(91) u

Proton mass MeV                           938.2720813(58) MeV/c2

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I hope this helped you,

And I do hope you enjoy the rest of your day!  (ɔ◔◡◔)ɔ ♥          

-Kirby ★ ツ ✌                

Answer:

If that happens, you body will die soon

Explanation:

Answer:

Calculating the age of a skeleton can be done by looking at the number of fused bones (option 3).

Explanation:

The calculation of skeleton bone age takes into account the complete ossification of bones, which occurs at various stages of human development.

In childhood, the epiphyses or ends of long bones are not completely ossified but are formed by cartilage, due to the process of growth. When development is achieved, the growth nuclei and cartilage disappear.

Bone age is a reliable parameter for calculating chronological age, as they are quite approximate.

The other options are not correct because:

   1. The length of the femur is useful for calculating height.

   2. The shape of the pelvis helps to differentiate the sex.

   4. The color of the bones is not a useful parameter to calculate the age of the skeleton.

Answer:

a Bicycle and Skateboard

Answer:

cytoplasm

Explanation:

All cells have a plasma membrane, ribosomes, cytoplasm, and DNA. Prokaryotic cells lack a nucleus and membrane-bound structures. Eukaryotic cells have a nucleus and membrane-bound structures called organelles