what are the primary consumers in the Arctic food web?

Answer:

Sexual reproduction is typically advantageous over asexual reproduction because the environment is constantly changing. Sexual reproduction allows new combinations of genes to form. This greater genetic diversity increases the phenotypic variation: that is, it increases the physical variety of the organisms.

Explanation:

Answer:

Luteinizing hormone (LH), the other reproductive pituitary hormone, aids in egg maturation and provides the hormonal trigger to cause ovulation and the release of eggs from the ovary.

Answer:

Luteinizing hormone

Explanation:

Luteinizing hormone (LH), the other reproductive pituitary hormone, aids in egg maturation and provides the hormonal trigger to cause ovulation and the release of eggs from the ovary

The DNA in the nucleus and mitochondria are the same.

This is not exactly true, although they are similar. This is not a correct option.

The following three are correct options:

Mitochondria and chloroplasts grow independently from the cell.

This is true, and supports the idea that they previously existed as their own organisms.

Prokaryotic cells, mitochondria, and chloroplasts are all the same size.

All three organisms/organelles are roughly the same size, which supports the idea that chloroplasts and mitochondria are descendants or prokaryotes.

Mitochondria and chloroplasts contain their own ribosomes.This is true as  well.

Answer:

question 1

Low-pressure areas are places where the atmosphere is relatively thin. Winds blow inward toward these areas. This causes air to rise, producing clouds and condensation. Low-pressure areas tend to be well-organized storms

question 2

Scientists that work in Antarctica mostly refer to the majority of the continent as being cold desert or polar desert. The difference between cold and polar desert is very technical, mainly dealing with mineral salt chemistry.

Explanation:

hope this helps!

Answer:

yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy

Answer:

cells part such as chloroplasts are self-replicating.

Answer:

the answer is C hope this helps :)   Please brainliest

Explanation:

Answer:

A theory is a carefully thought-out explanation for observations of the natural world that has been constructed using the scientific method, and which brings together many facts and hypotheses. ... A scientist makes an observation of a natural phenomenon.Explanation:

Answer:

It changes its form

Explanation:

The DNA strand during this process is copied and "mutate" if I may use the word , the after the new copies are change to molecules that's why at the end of the day we have different blueprints

Answer:

full ques..please.. not understanding

Answer:

magnesium atom

Explanation:

The chlorophyll molecule consists of a central magnesium atom surrounded by a nitrogen-containing structure called a porphyrin ring; attached to the ring is a long carbon–hydrogen side chain, known as a phytol chain.

The microscope can be used to demonstrate the segregation of chromosomes during cell division. The law of segregation of characters is a Mendel's Law.

Each allele or gene variant is located at a specific chromosome location known as a gene locus.

The Law of Segregation indicates how one offspring receives one allele from each parent for each locus in a diploid organism.

The development of microscopy confirmed the idea that offspring receives one allele (which is located at a specific chromosome) from each parent for each gene locus.

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Answer: Sympathetic trunks and ganglia are located immediately anterior! Hope This Helps! Happy Early Christmas! :D

Explanation: Sympathetic ganglia can be divided into two major groups, para-vertebral and prevertebral (or preaortic), on the basis of their location within the body. Paravertebral generally are located on each side of the vertebrae and are connected to form the sympathetic chain, or trunk.

Answer:

The human body uses the energy released by respiration for a wide range of purposes: about 20% of the energy is used for brain metabolism, and much of the rest is used for the basal metabolic requirements of other organs and tissues.

Answer: I don't have a definitive answer for this question but I do have a helpful explanation.

Explanation: Try to find out what each letter means and organize the elements by how they connect to each other. If you don't know you can research to find a diagram that can help show you how to connect these functional elements. You could try searching how do you find the elements of HOH in a diagram.

Answer:

sinusoidal capillaries

Explanation:

Answer:

I'm going to go with a mixture sorry If this is wrong

Explanation:

Answer:

The term haploid can also refer to the number of chromosomes in egg or sperm cells, which are also called gametes. In humans, gametes are haploid cells that contain 23 chromosomes, each of which a one of a chromosome pair that exists in diplod cells.

Explanation:

Onion root cell 3 is the closest to the completion of the cell cycle. Mitosis is

the type of cell division which involves the production of two identical

daughter cells.

Telophase is regarded as the final stage of mitosis before cytokinesis takes

place. In this phase, the chromosomes decondense and the spindle breaks

down.

There is also formation of two new nuclei of the daughter cells which are

separated by the newly formed nuclear membrane which is evident in the

onion root cell 3 thus making it the most appropriate choice.

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Answer:

Lithosphere, hydrosphere, atmosphere

Explanation:

The name of each of these sphere come from the Greek word that describe what they are made of ,Geo, for ground, hydro for water,bio

The value of Drew's stocks has increased by $11.64 more than the value of his bonds.

Answer:

D. mitosis

Explanation:

Mitosis is the process whereby the parent cell divides into two daughter cells that are identical.

Mitosis is the process by which a parent cell becomes two identical daughter cells. So, the correct option is (D)

Mitosis is the process in which cell duplication, or reproduction takes place. Wherein one parent cell gives rise to two genetically identical daughter cells. Mitosis is the duplication and distribution of chromosomes which carries the genetic information.

It is an important process in single celled eukaryotes as it is the mode of asexual reproduction. The main function of Mitosis is to produce more cells.

Life starts with single cell in multicellular organism which is formed from two gametes. Mitosis takes place one cell is divided into two cells as this single celled multicellular organism only carries genetic information in the form of DNA but not enough cells. These two cells further divide mitotically into four cells, then into 8 , then 16 and then 32.

It is essential to life because it give rise to new cells for growth and replacement of dead cells. It may take few minutes or some hours, depending on the type of cells. It depends on time, temperature and chemicals.

Thus, mitosis is the process by which a parent cell becomes two identical daughter cells. So, the correct option is (D).

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Answer:

Metaphase

Explanation:

In prophase, spindle fibers start emerging from the centrosomes. In metaphase, the spindle fibers attach to the sister chromatids.

Answer:

The reactants for photosynthesis are light energy, water, carbon dioxide and chlorophyll, while the products are glucose (sugar), oxygen and water.

Iron is a component of hemoglobin, which enables it to absorb oxygen from the air we breathe and transport it throughout the body.

The iron-containing oxygen-transporting metalloprotein known as hemoglobin, often known by the abbreviations Hb or Hgb, is found in the red blood cells of almost all vertebrates as well as some invertebrate organs. The oxygen from the respiratory organs is transported to the rest of the body by hemoglobin in the blood.

The normal ranges for haemoglobin are different for males and females, and they also vary depending on the ethnicity of the population. Additionally, age is a factor, particularly for women.

When you have anemia, your body doesn't produce enough healthy red blood cells to supply your tissues with enough oxygen. Anemia, commonly known as low hemoglobin, can make you feel exhausted and frail.

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Answer:

A monomer is a single unit of a substance (eg. Amino acid). A polymer is a chain of monomers (eg protein). An isomer is a molecule of an element with the same chemical formula but a different chemical structure (sucrose and maltose).

Explanation:

Answer: C

Explanation: A good experiment does everything it can to eliminate confounding, or the influence of external sources on the data being measured. Orange juice could be a factor that plays a role in curing the symptoms, so provide a group with and without orange juice gives you the ability to show that the influence of orange juices didn’t have an effect on the cold, or did, but it gives you a baseline to show the effects of the medicine with and without orange juices.

The Venn diagram makes a comparison between categories. Intersection: Cell division/Asexual: diploid, somatic, mitosis, genetically identica/Sexual: haploid, gamete, meiosis, chromosomes separate , genetically different.

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A Venn Diagram is represented as two or more circles with some degree of superposition between them. It is used to make comparisons expressing similitudes and differences between things.

Each circle represents a category -in this example, sexual and asexual reproduction-.

The superposed area is named intersection and shows things in common between the two categories.

We already know that sexual reproduction occurs by the process of meiosis, while asexual reproduction occurs by mitosis.

In superior organisms, there are two types of cells: Somatic cells and germ cells.

The somatic cells are diploid (2n), meaning that each cell has a pair of equal chromosomes. The somatic cells are all the body cells except for the sexual ones, and they reproduce by the process of mitosis.

In somatic cells, one of the sets of chromosomes is inherited from the maternal side, while the other homologous set of chromosomes is inherited from the paternal side. Hence, the number of chromosomes in these double sets of the somatic cells is diploid, 2n.

Mitosis is a process through which, from a diploid somatic cell (2n), two identical daughter diploid cells (2n) are produced.

First, occurs duplication of the cell content, and then the separation into two new cells happens.

Germ cells suffer mitosis and meiosis.  

Through meiosis, germ cells produce gametes, called sperm and egg cells, through the gametogenesis process.  

Gametes are haploid (n) with half the number of chromosomes that might be found in the somatic cells.  

During gamete formation, the pairs of homologous chromosomes separate after crossing over. Then, sister chromatids also separate. The result is the formation of four gametes.  

Each gamete has different information from the combination of homologous chromosomes belonging to the father and to the mother.

Gametes' destiny is to merge in the process of fecundation, during which a new diploid cell called zygote emerges through fertilization.

The zygote is a complete cell that suffers successive mitosis to form the new organism.  

Venn Diagram

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