reviewing Meiosis:
Diagram the phases of meiosis using colored pencils to show the homozygous pairs.
a. the starting cell is 2n. how many chromosomes does it have?
b. hom many chromosomes will it have after Meiosis 1?
c. how many chromosomes will it have after Meiosis 2?​

Answer:

Low fertility rates that cause long-term population decline can also lead to population ageing, an imbalance in the population age structure. Population ageing in Europe due to low fertility rates has given rise to concerns about its impact on social cohesion.

The characteristics of allosteric enzymes are regulatory molecules can bind and modify the catalytic activity of these enzymes.

Enzymes are proteins that catalyze chemical reactions that occur in living things. They speed up the speed of reactions, which contributes to metabolism. Without enzymes, many reactions would be extremely slow. During the reaction, the enzymes do not change their composition and are not consumed either.

In this case, Allosteric enzymes are enzymes that contain a region separate from the substrate to which small regulatory molecules can bind and modify the catalytic activity of these enzymes.

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Answer:Our solar system formed at the same time as our Sun as described in the nebular hypothesis. The nebular hypothesis is the idea that a spinning cloud of dust made of mostly light elements, called a nebula, flattened into a protoplanetary disk, and became a solar system consisting of a star with orbiting planets

Explanation:

Answer:

Ethylene is a gaseous plant hormone that plays an important role in inducing the ripening process for many fruits, together with other hormones and signals. An unripe fruit generally has low levels of ethylene. As the fruit matures, ethylene is produced as a signal to induce fruit ripening.

Explanation:

Answer:

it is the hormone present in ripening the fruit so removal of ethylene helps increase the shelf life of fruits and vegetables

Explanation:

Hope It Helps!!!

Answer:

With the findings of the 2016 Census count on population and dwellings, Statistics Canada gives Canadians a first look at the most recent national statistical snapshot.

The census counts 35,151,728 persons who said they lived in Canada on May 10, 2016, and displays population growth patterns across the country.

The organization will provide the complete spectrum of census data during the following year, as Canadians commemorate 150 years since Confederation, in order to portray a truthful picture of Canadians' lives and communities.

In 1871, the first census following Confederation recorded 3.5 million people in Canada, while the population figure in 2016 was ten times higher. When Canadians celebrated the 100th anniversary of Confederation in 1967, that number had risen to 20.0 million people (1966 Census).

Canadians have been making their way west for many years. The four founding provinces of Ontario, Quebec, New Brunswick, and Nova Scotia housed the majority of Canadians in 1871, whereas Western Canada was lightly populated. Manitoba, Saskatchewan, Alberta, and British Columbia accounted for over a third of the population in 2016.:

If Ms. Gates is eligible for both the Medicare and the Medicaid, then her drugs will be covered under part D. So, she should be informed that Medicare will generally cover the drugs. But the ones that are not covered will be covered under Medicaid.

The Medicare and Medicaid program are federal and state government program for the people who have limited assets and are 65 or older.

These program provides healthcare coverage to the people. The Medicare program although covers most of the drugs, but some drugs are excluded from the Medicare, these drugs are mostly covered by Medicaid program.

So, the Ms. Gates should be informed that all her drugs will be covered under the Medicare and Medicaid privileges.

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Answer:

Blood vessels in the dermis dilate in the hot days or during exercise to cool off the body by sweating. During cold, the same blood vessels will constrict to keep the body warm and reduce the heat loss.  

Explanation:

Answer:

mitochondria and Golgi body

Answer:

A.) conversion of chemical energy to heat energy

D.) Photosynthesis creates energy that the plant stores, and cellular respiration utilizes the energy.

D.) The populations of marsh snails and painted turtles will decrease.

Explanation:

When energy is stored in wood, it is being stored as chemical energy. This energy is being stored in the bonds that hold the wood molecules together. Once you begin to burn the wood, these bonds are breaking. As this happens, the chemical energy turns into heat energy (aka. thermal energy) and is released into the atmosphere.

Photosynthesis converts light energy from the sun into chemical energy that can be accessed by the plant later. During cellular respiration, the plant breaks down the molecules which store the energy in the form of chemical energy and accesses the energy.

When you decreases the amount of phytoplankton, the marsh snails have less food to feed on. As a result, more phytoplankton will starve. This results in the decrease of the marsh snail population. Because the marsh snail population decreases, the same will happen to the painted turtles.

A.) conversion of chemical energy to heat energy

D.) Photosynthesis creates energy that the plant stores, and cellular respiration utilizes the energy.

D.) The populations of marsh snails and painted turtles will decrease.

Answer:

False.Aristotle is chemist he not the founder of biology

Scientists change scientific theories when new evidence conflicts with old ideas; option D

Scientific theories are explanations put forward by scientists to explain a given observation based on current research.

Scientific theories can be modified based on changing evidence due to further research.

Therefore, it can be concluded that when new evidence disproves old ideas, scientists modify and adjust scientific theories to harmonize with new evidence.

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Following are made up of cells:

Wooden table -No

Glass sheet- No

Liver- Yes

Plastic bag- No

Kidney- Yes

Cells are the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body.

Yes, Each lobule is made up of numerous liver cells, called hepatocytes. these hepatocytes are arranged in row forming sinusoids. Small blood vessels diffuse oxygen and nutrients through their capillary walls into the liver cells.

Yes, There are at least 16 different highly specialized epithelial cell types in the mammalian kidney.

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Signal peptide are often found at the N-terminus of secreted proteins.

A signal peptide is a short peptide present at the N-terminus of most newly synthesized proteins that are destined toward the secretory pathway.

The following statements describes general aspect of signal sequences;

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The statement "If a theory becomes supported by evidence, it can become a law" is false because it should read, “A theory and a law are already both supported by evidence and are equal, but they have different functions.” Thus, the correct option is C.

Evidence may be defined as the general body of attributes or information suggesting whether speculation or recommendation is authentic or valid.

In scientific methods, both theory and law are supported by evidence but they have different functions.

The function of theory illustrates an explanation of the statements and discoveries accumulated during the process.

While the function of law illustrates an experimental circumstance in nature that is genuine whenever it is positioned to experiment.

Therefore, it is well described above.

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Write a new hypothesis and conduct new experiments to explore the matter. Thus, option "B" is correct.

Hypothesis

The formulation of hypotheses is one of the key steps in the scientific method.

Hypotheses are usually tested using experiments and are usually accepted or rejected depending on the outcome of the experiments.

If a hypothesis is rejected, it does not mean that the entire subject is abandoned. Rather, new hypotheses may be formed and experiments conducted to further explore the subject.

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Bacteriostatic antibiotics inhibit the replication of microorganisms and prevent the growth of the organism without destroying them.

An antibiotic refer to chemical substances that hello to destroy, kill or inhibit the growth of microorganisms in the body to prevent infections.

Therefore, Bacteriostatic antibiotics inhibit the replication of microorganisms and prevent the growth of the organism without destroying them.

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50,000 x 0.10 = 5,000J energy did the zooplankton get from the phytoplankton. thus option B is correct.

In ecology, the food chain is the flow of substance and energy from one organism to another in the form of food.

A process cycle from producer to consumer to decomposer is referred to as a food chain.

Plants, herbivores, omnivores, and carnivores all exist. Beginning with plants, moving on to herbivorous insect, spiders, a small bird, a snake, a hawk, a fox, and a lion When a person passed away, a hyena would consume their body. When the hyena passed away, the body would disintegrate, becoming food for worms, and then become fertilizer for plants. so according to 10 percent rule, zooplankton get 5000 j of energy from phytoplanktons.

The food chain's cycle will then repeat itself time and time again.

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Answer:

C. 50,000 KG

Explanation:

edge 2022 :)

The endocrine system, along with the nervous system, coordinates the body's functions to maintain homeostasis during rest and exercise. The nervous and endocrine systems also collaborate to initiate and control movement, as well as all of the physiological processes that movement entails.

The endocrine system is a web of glands and organs. It controls and coordinates your body's metabolism, energy level, reproduction, growth and development, and response to injury, stress, and mood using hormones.

The endocrine system, along with the nervous system, coordinates the body's functions to maintain homeostasis during rest and exercise.

The nervous and endocrine systems also collaborate to initiate and control movement, as well as all of the physiological processes that movement entails.

Thus, the nervous and endocrine systems work together to carry out the coordination of the body.

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Stegosaurus and ankylosaurus are united in a group called; Thyreophora

Stegosaurus and ankylosaurus are united in a group called Thyreophora.  They belong to that group because under the classification of dinosaurs, the Thyreophora consist mainly of Stegosauria which are commonly known as the plated dinosaurs and Ankylosauria which are commonly called the armored dinosaurs.

It should be noted that this group could also include their more basal relatives like Scutellosaurus and Scelidosaurus.

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In analyzing the number of different bases in a DNA sample, the result would be consistent with the base-pairing rules is A+G = C+T.

Base pairing occurs precisely: a purine base binds to a pyrimidine – adenine (A) on one chain pairs with thymine (T) on the other and guanine (G) pairs with cytosine (C).

In this case, the base pairing rule states that the number of adenine is equal to number of thymine. Similarly, the number of guanine is equal to number of cytosine.

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an individual's set of observable characteristics that results from the interaction of a genotype with the environment

check me if I'm rong

Answer:

not sure

Explanation:

If a force of 5 newtons is applied to lift books 2 meters, the work done is 10 newton meters.

The formula for calculating work is Work = Force x Distance so for calculating work we have to multiply 2 meters with 5 newtons force then we get 10 newton meters.

So we can conclude that If a force of 5 newtons is applied to lift books 2 meters, the work done is 10 newton meters.

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From the calculations, the work done on the book is 10 J.

In science, work is said to be done when the force applied moves a distance in the direction of the force.

Given that;

Force applied = 5 N

Distance covered = 2 m

It the follows that the work done is;

W = F * d

W = 5 N * 2m = 10 J

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Answer:

I think its cell specialisation

Answer:

The carbon footprint is a very important means to understand the impact of a person's behavior on global warming. This is why someone who effectively wants to contribute to stopping global warming, at least on an individual scale, needs to measure and keep track of their personal carbon footprint.

Explanation:

Answer:

Osteocytes

Explanation:

i studied this

The invertebrate chordates include Tunicates and lancelets.

They are a group of chordates that possess notochords somewhere in their life span but end up not possessing the vertebral column. They possess all the characteristics of chordates.

Invertebrate chordates include the Urochordata which are the Tunicates and the Cephalochordata which are the lancelets.

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