Protein pumps are efficient because they
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Answer:

given:

Total number of cells in all stages = 93+15+4+6+2 = 120

Total time = 24 hours.

solution:

Percentage of cells in interphase

= 93 * 100 / 120 = 77.5%

 in prophase

=15 * 100 / 120 = 12.5%

 in metaphase

= 4 * 100 / 120 = 3.33%

 in Anaphase

= 6 * 100 / 120 = 5%

 in telophase

= 2 * 100 / 120 = 1.66%

The percentage of cells present in various phases exhibits the time spend by each cell in that phase.

Total minutes

= 24*60 = 1440

Total minutes spent in interphase

= 77.5 * 1440

= 1116 minutes

in prophase =12.5 *1440

=  180 minutes

 in metaphase = 3.33*1440

=  48 minutes

in Anaphase = 5*1440

= 72 minutes

 in telophase = 1.66*1440

=  24 minutes

Answer:

it would be the top right one

Answer:

in a way that can be trusted

Explanation:

hope this helps!

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Answer:

D

Explanation:

White Blood Cells Increase When Someone is Fighting an Infection or Sickness

Answer:

It is the Large Vacuole.

Explanation:

I thought it was Lysosome (almost, maybe).

Answer:

Gradually, as generations of elephants continued to selectively use and develop their trunks.

Explanation:

Jean-Baptiste Lamarck was  famous French Naturalist. He was a soldier, a biologist and an academic. He gave an early theory of evolution known as the theory of Lamarckism.

It was Lamarck who first believed that elephants earlier had small trunks. But eventual when there was scarcity of food and water, the elephants stretched out its trunk to reached out for food such as trees and also water. And as a result their offspring inherited long and powerful trunk.

In his theory of Lamarckism, he believed that the species passes on its traits to the offspring which they acquired through their use in their lifetime. In this case, the elephants might have used their trunks in such a way that they became long and strong over time and they passed tis trait to their babies.

Answer:

answer is in explanation before

Explanation:

Overgrazing occurs when plants are exposed to intensive grazing for extended periods of time, or without sufficient recovery periods. It can be caused by either livestock in poorly managed agricultural applications, game reserves, or nature reserves. Overgrazing combined with overstocking has the most damaging outcomes to the world’s natural environment. The scarcity of water resources, water pollution, degeneration of coral reefs, and eutrophication are all connected to overgrazing. The chief polluting elements include farm chemicals and animal wastes.

Types of grazing systems 1. Types of grazing systems Grazing animals (such as cattle, sheep and goats) feed on the leaves and shoots of grass... 2. Zerograzing In this type of grazing system, the animals are not allowed to go out into the pastureto graze.

Overgrazing is defined as the practice of allowing too many livestock to graze on a particular area of land for an extended period. This leads to a decrease in the vegetation cover and the soil's capacity to hold moisture, which results in soil erosion and desertification.

There are three types of grazing systems: continuous grazing, rotational grazing, and intensive grazing. Continuous grazing involves leaving livestock on a particular area of land throughout the year. Rotational grazing involves rotating livestock to different areas of land to prevent overgrazing. Intensive grazing involves keeping livestock in smaller paddocks and rotating them frequently.

Hence, overgrazing is defined as the practice of allowing too many livestock to graze on a particular area of land for an extended period. This leads to a decrease in the vegetation cover and the soil's capacity to hold moisture, which results in soil erosion and desertification.

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Answer:

They determine what everything will look like, by the different combinations of alleles.

Answer: B. Neuritic zone

Answer:

la selección natural es el mecanismo principal por el cual la evolución ocurre

Explanation:

Charles Darwin fue un naturalista inglés que propuso la teoría de la evolución o 'descendencia con modificación' mediante el mecanismo de selección natural. Acorde a esta teoría, la selección natural se define como el mecanismo selectivo de reproducción diferencial de los individuos mejor adaptados a su ambiente. La variabilidad es el la materia prima sobre la cual la selección natural actúa, seleccionado aquellos individuos que presentan combinaciones fenotípicas y genotípicas más adaptadas para sobrevivir en un ambiente en particular. Los individuos de una población que son 'superiores adaptativamente' poseen más chances de sobrevivir y reproducirse, y por lo tanto tienen también más probabilidades de transmitir sus genes a la siguiente generación.

Answer: C: Uterus D: Vagina Egg cells are produced in the ovaries

This process is called Ovulation

Explanation:

That is why we have periods

Answer:

Domain

Explanation:

“Professional Sports Organization” is listed at the very top, or 2 tiers above Phylum. 2 tiers above Phylum is Domain.

Answer: Organisms evolve over time due to changes in heritable physical characteristics.

Explanation:

There are a few things to look for when distinguishing between a nonscientific theory and a valid scientific theory. One thing to consider is if there are any published literature, experimental studies, and data available to support the theory. Most scientific theories have data and information tied to them. Another factor to examine is who has developed the theory. A scientific theory will always be supported by evidence with large quantities of data and testing. An example of a scientific theory is the theory of evolution, which observes changes in heritable physical traits over time in an organism. A hypothesis might be that all organisms evolve at the same rate.

Organisms evolve over time due to changes in heritable physical characteristics is an example of a scientific theory known as evolution. Thus, option C is correct.

Evolution is the scientific theory that explains that "a change in the characteristics of biological populations over next generations.

According to scientists RNA is the first existing molecule on earth that replicate by itself and the process of evolution lead to advanced forms of life.

These characteristics are easily trasfered from one generation to other generation.

Therefore, Organisms evolve over time due to changes in heritable physical characteristics is an example of a scientific theory known as evolution. Thus, option C is correct.

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Answer:

287.5%

Explanation:

Initial = 40

Recent = 155

Growth rate = ( recent - initial )÷ initial ×100/1

=( 155-40/40) × 100/1

= 115/40×100/1

= 2.875×100/1

= 287.5%

The rate of growth is 287.5%

Answer:

A negative feedback loops is when glucose levels get too high, the body releases insulin into the bloodstream to get back to normal blood levels.

Answer: D A

Explanation:

You need to read and go by each one  

Answer:

whole eggs

Explanation:

i think its whole eggs but there is a guideline that says all egg products must be pasteurized

Answer:

The evidence is valid because it represents how Earth's axial tilt impacts the temperature levels during each season. Conventionally, the Earth has an axial tilt of about 23.4 degrees, and revolves around the sun, ultimately causing seasons.

Explanation:

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Answer:

chemical energy

Answer:

Glucose is the word!!

Answer:

B. As you get too hot, you sweat to cool your body temperature back down.

Answer:

The surface layer of the water freezes solid creating a barrier that insulates the ice below so that it keeps a steady temperature usually a few degrees above freezing (32 degrees).

Explanation:

The bone cell of a goat contains 60 chromosomes, so there will be 60 chromosomes in each daughter cell after mitosis, as mitosis is the cell division that will produce daughter cells with the same genetic contents.

The cell divides during mitosis, and the daughter cells formed have the same genetic content as the parents, here, two daughter cells are formed, with the bone cell having genetic content same as original bone cell. Because the duplicated chromosomes are separated equally by the spindle fibers without crossing over or recombination, 60 chromosomes will form that is the same number of chromosomes after mitosis.

Hence, the bone cell of a goat contains 60 chromosomes, so there will be 60 chromosomes in each daughter cell after mitosis, as mitosis is the cell division that will produce daughter cells with the same genetic contents.

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Answer:

Recessive

Explanation:

All of the offsrping were black so that means black was the dominant gene and white was the recessive

At the time when the pure black hamsters were mated so here,  the whiteness trait should be called the recessive.

It refers to the allele type that should not be manifested in an individual till both individual copies of the gene should include the particular genotype.

And, all the offspring should be considered as black so here black treated as the dominant gene and white should be considered as the recessive

Hence, the whiteness trait should be called recessive.

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Answer:

AUC GUA CCG UT

Explanation:

when you are dealing with mRNA these bases transcribe to each other

guanine= cytosine

adenine= uracil

thymine=adenine

Note:

when you are transcribing from DNA to mRNA remember T=A but A does NOT equal T. A=U in a mRNA sequence