Please help me I really need help!!!!

Answer:

Mitosis is the phase where the cell splits its chromosomes equally among two daughter cells, and branches off into more cells.

In mitosis, there is the prophase, prometaphase, metaphase, anaphase, and telophase.

The prophase is where the nuclear envelope breaks down and chromosomes attach to spindle fibers. The metaphase is where chromosomes line up at the equator. In the anaphase, the cells move to opposite poles to split. Last but not least, the telophase. In this final phase, the two nuclei split into new cells.

Answer:

33

Explanation:

Gametes (sperm or egg) have half the chromosome of a diploid cell. That's why they are haploid cells.

If chromosomes come from a cell with 66 chromosomes, sperm will have 66/2 = 33.

That's why us humans have 46 chromosomes, but our egg or sperm has only 46/2 = 23 chromosomes.

Answer:

33 chromosomes

Explanation:

The cell undergoes reduction-division to produce 2 daughter cells with equal number of chromosomes. Hence, the sperm cells will have 33 chromosomes.

Answer: check online for the answer

Explanation:

Transformation is the transfer of DNA from a donor to a recipient cell, mediated by a bacteriophage through the process of crossing over.

DNA stands for Deoxyriobo nucleic acid. It is considered the genetic material in most of the organisms living on the earth's surface.

It is the process that involves the horizontal gene transfer among prokaryotes. During this process, the DNA of the donor cell integrates into the recipient cell.

Therefore, transformation is the transfer of DNA from a donor to a recipient cell, mediated by a bacteriophage through the process of crossing over.

To learn more about Transformation, refer to the link:

https://brainly.com/question/1548871

#SPJ4

The motion of molecules and the transfer of energy decreases with increase in volume of the solution.

The volume of a solution is inversely proportional to the motion of the molecules of a substance.

An increase in volume results in a decrease in the motion of particles due to a decrease in the frequency of particles and thus, less energy is transferred.

Therefore, the motion of molecules and the transfer of energy decreases with increase in volume of the solution.

Learn more about energy transfer at: https://brainly.com/question/7541718

#SPJ1

Answer:

Plants can reproduce in two ways:

Vegetative reproduction

Fertilization-based reproduction

Explanation:

Answer:

Venous blood

Explanation:

Arterial blood is carrying oxygen to tissues.....after delivering the oxygen it is venous blood and has less oxygen.

Food webs and the ecosystems that support them look different in different parts of the world depending on their habitat conditions.

An Ecosystem may be defined as a place or area where members of different species or communities live and interact with one other for the purpose of food, shelter, space, or other resources.

Food webs constantly supply energy from one level of organisms to other levels of organisms randomly. It basically depends on the type of habitation present in particular conditions.

The place of producers remains the same for food webs and food chains. The food chain transferred energy in a defined way, rather than food webs.

Therefore, food webs and the ecosystems that support them look different in different parts of the world depending on their habitat conditions.

To learn more about Food webs, refer to the link:

https://brainly.com/question/2179

#SPJ1

Answer:

Biodiversity

Explanation:

Biodiversity is a term used to describe the enormous variety of life on Earth. It can be used more specifically to refer to all of the species in one region or ecosystem. Biodiversity refers to every living thing, including plants, bacteria, animals, and humans.

The condition is called diploidy. During meiosis the cell produces gametes, or germ cells, each containing half the normal or somatic number of chromosomes. This condition is called haploidy.

The parent cell undergoes one round of DNA replication followed by two Different cycles of nuclear division.

The method results in four daughter cells that are haploid, which means they contain half the number of chromosomes of the diploid parent cell.

Thus,The condition is called diploidy. During meiosis the cell produces gametes, or germ cells, each containing half the normal or somatic number of chromosomes.

To learn more about meiosis click here:

https://brainly.com/question/11622266

#SPJ4

Most of the products of fat digestion are absorbed by Lymphatic vessels.

Fat is digested in the small intestine along with the majority of nutrients.

The fatty acids that are composed of long chains synthesize a large structure of lipoprotein which is known as chylomicron which is responsible for the absorption and transport of fats through the lymphatic system.

Therefore, most of the products of fat digestion are absorbed by Lymphatic vessels.

To learn more about the Lymphatic system, refer to the link;

https://brainly.com/question/6504171

#SPJ4

Answer:

Insulin and glucagon

Explanation:

These are responsible for it

Answer:

A. Tranfer of organic material to lakes and streams by runoff.

Answer:

Transfer of organic material to lakes and streams b runoff.

A snow-covered mountain has a higher albedo than a dark-colored corn field. Therefore, it will reflect solar energy more than the field.

Dark surfaces absorb the rays from the sun (low albedo). Ice- and snow-covered areas have high albedo, and the ice-covered Arctic reflects solar radiation which otherwise would be absorbed by the oceans and cause the Earth's surface to heat up.

Freshly fallen snow reflects incoming solar radiation very well and therefore has a high albedo. New snow typically has an albedo of 0.96 to 0.98 in the visible and near-UV range (Grenfell et al., 1994), and 0.8 averaged over the entire wavelength spectrum.

Learn more about high albedo here: brainly.com/question/1846834

#SPJ2

Answer: Genetic Change

Explanation:

Mutations contribute to genetic variation by causing new traits to emerge. Mutations happen when there is a change in the DNA of a creature developing in utero. These random changes in creatures are common, although most mutations end up being lethal or inhibiting to the organism. In rare cases, this mutation can prove benificial or helpful, and if the organism reproduces and the trait is passed along, it could become a new branch of genetic variation within the species.

Answer:

All groups.

Explanation:

if small fish, insects, ducks, snails, etc don't have food they will decrease in population and starve the organisms above them in the feed web, like a domino effect.

Answer:

Although they are independent, they can. Chemical energy harvested in the light dependent reactions drives the assembly of molecules from CO².

Answer:

The function of hyphae is to absorb nutrients

Answer:

heart , liver , stomach and kidneys

To write a newspaper article about environmental legislation, it is necessary to carry out a research on sources, which generate greater reliability in the work.

It corresponds to rules and legal norms established with the objective of maintaining the prevention and protection of natural resources, such as the three main American environmental laws of the 1970s, which are:

Therefore, to write the article with your point of view on the subject, it is essential to carry out research on institutional websites, books and reliable sources, for greater consistency in your opinion.

Find out more about environmental legislation here:

https://brainly.com/question/1658665

#SPJ1

Answer:

its greenhouse effect

Explanation:

got it right on the test

Answer:

short, humid summers and long, harsh winters

Explanation:

Got it right on my quiz.

Scientists found that the first living things were likely prokaryotic because eukaryotic are evolved from the prokaryotic only.

Natural selection may be defined as favorable variations that assist the organisms to survive and reproduce in a particular habitat.

Individuals that are better suited to their environment are likely to have more offspring and pass their genetic material on to future generations. This theory is referred to as Natural selection.

Scientists hypothesize that oxygen began to accumulate in the Earth's atmosphere after the appearance of living things with the ability to Photosynthesize.

To learn more about Photosynthesis, refer to the link:

https://brainly.com/question/19160081

#SPJ1

Answer:

Two different alleles come together and produce both trait forms. Two different alleles come together and produce a trait form that is neither dominant nor recessive. a chromosome that determines the X or Y of an organism.