Students are studying ecosystems and the relationships between abiotic and biotic factors in an environment. The students find that the ecosystem in an area has changed over time. They wonder if a change in an abiotic or biotic factor can cause a change in the ecosystem forming a new ecosystem. Which three statements provide evidence that a change in abiotic or biotic factors can cause a new ecosystem to form?

Answer:

D) a vein

Explanation:

Answer:

Meiosis produces our sex cells or gametes. Females produce an egg. Males produce sperm

Explanation:

Answer:

at the end of meiosis, females take the xx chromosome equals to 23each

Cyclin proteins are important in cell cycle progression; they partner with cyclin-dependent kinase enzymes to allow the cell cycle to progress. Without them, cell cycle progression would be hindered/stopped.

The situation when the cyclin proteins should not be function properly in the cell cycle because it is arrested.

It is the key step that governs exit from mitosis and it should be progress into the coming cell cycle. It is equally vital with respect to the progression that arise from the cell cycle. In this, the particular enzymes should be split down cyclines at the particular time with respect to the cell cycle.

At the time when there is decrease in the cyclin levels so the CDK should not be inactive. Also, the cell cycle should be arrest at the time when the cyclines fail to degrade.

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Answer:

The organism in Layer C is a modern form of the organism in Layer B.

Explanation:

Answer:c

Explanation:test

Answer:

Non contact forces

Explanation:

non-contact force is a force which acts on an object without coming physically in contact with it. The most familiar non-contact force is gravity, which confers weight. In contrast a contact force is a force applied to a body by another body that is in contact with it.

Answer:

C. Through the use of technology

Explanation:

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Answer:

Blood picks up oxygen from the lungs from tiny sacs called Alveoli and transports it the cells where it enters the cell through the Cell Membrane

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Answer:

Igneous- relating to, resulting from, or suggestive of the intrusion or extrusion of magma or volcanic activity

metamorphic- describes a specific process that some rocks undergo when heat and pressure changes them.

extrusive- rock refers to the mode of igneous volcanic rock formation in which hot magma from inside the Earth flows out (extrudes) onto the surface as lava or explodes violently into the atmosphere to fall back as pyroclastics or tuff.

Answer: C. To see and help the body respond to the environment.

Explanation: Good luck! :D

Answer:

materials move against a concentration gradient

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Over time the Cat gets used to it's surroundings and routines of the people around it, soon the cat adapts to these surroundings.

Explanation:

Answer:

Cheek Dimples are a very common characteristic in people. One allele for the gene that codes for cheek dimples is given the symbol “D”. The other allele that codes for no dimples is given the symbol “d”. A person that has cheek dimples

Explanation: I  what i learn

Answer:

subphylum of cephalochordata are called lancelets

Answer:

Cells and tissues are analyzed in the lab to look for cancer. Samples may be collected from body fluids (such as urine or blood) or from organs.

Answer:

Nucleolus

Explanation:

This is a more technical answer. The Nucleolus is located inside the nucleus and this is the location where the ribosomes are produced. They then leave through the nuclear pores to be sent out into the cell.

The area of the cell that is linked with production of ribosomes is nucleolus. The correct option is 1.

The nucleolus is a circular shape within the nucleus of cells that produces and assembles the cell's ribosomes. Ribosomal RNA genes are also transcribed in the nucleolus.

The nucleolus has the most visible realm in the nucleus of a eukaryotic cell, and its basic task is ribosomal RNA (rRNA) melding and ribosome biogenesis.

The nucleolus, as the site of ribosome biogenesis, is critical to cell metabolic activity.

It is made up of ribosomal DNA (rDNA), which is found in tandem arrays in nucleolus event coordinator regions.

The nucleolus synthesizes ribosomal subunits from proteins and ribosomal RNA, or rRNA.

It then starts sending the subunits to the rest of the cell, where they join together to form complete ribosomes.

Thus, the correct option is 1.

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Answer:

1. producers are the largest and consumers are the least

2. because wolves feed on both primary and secondary consumers

3. Only 10% of energy from each trophic level is passed on to the next; therefore, the energy passed to the primary consumer will be only 10 kcal.

4. disturbe,as we know that secondary consumers feed on primary consumers so if there is no primary consumers then all secondary consumers will die similarly all tertiary consumers will also die and life would be finish on the earth.

if a new tertiary consumer came into the ecosystem then it will create a problem as the number of primary and secondary consumer are same but the tertiary consumer are more so they will get less food and hence die

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100% would be dominant Ss if an SS guinea pig is crossed with an ss guinea pig.

The whole complement of an organism's hereditary material is referred to as its genotype. An individual's alleles and variations that they carry in a specific gene or genetic region are also referred to as their genotype. Genotype is a term that may be used in both of these contexts.

The genetic make-up of an individual organism is referred to as its genotype. Your body's growth and development are guided by the information contained in your genotype, which acts like a set of instructions. When discussing the hereditary components of a certain characteristic, the term "genotype" is often used (like eye colour).

Therefore when you cross SS with ss the genotypes obtained are Ss, Ss, Ss and Ss.

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Answer:

D Copper is transported by the stem from the roots to the flowers, where it affects reproductive tissues.

Explanation:

Answer:

Copper is transported by the stem from the roots to the flowers, where it affects reproductive tissues.

Explanation:

i just had this question,

According to the advertisment, copper is essential for reproduction. So, it most likely affects a plant's reproductive structures, which are found within flowers. As Amazing Nutri-C is applied to the soil, the copper must be absorbed by the roots and then transported to these tissues by the stem of the plant.

Therefore, the conclusion that is best supported by the information in the advertisement is that copper is transported by the stem from the roots to the flowers, where it affects reproductive tissues.

Answer:

Well, it helps us categorize organisms so we can more easily communicate biological information.

Explanation:

Answer:

chromosomal exchange i hope it helps you

Answer:

Enzymes bring reactants together so they don't have to expend energy moving about until they collide at random. Enzymes bind both reactant molecules, called the substrate, tightly and specifically, at a site on the enzyme molecule called the active site

Explanation:

Answer:

Ordovician: 63.85%

Devonian: -6%

Permian: 75.56%

Triassic: 9.88%

Cretaceous: 38.09%

Answer:

How can a change in one population affect the entire community in an ecosystem? If one population dies out, all the populations that depend on that species for food may also die out. A change in one population affects the entire community because all the populations of a community depend on each other.

Explanation:

Answer:

Flowers that contain both an androecium and a gynoecium are called perfect, androgynous or hermaphrodites. There are two types of incomplete flowers: staminate flowers contain only an androecium, and carpellate flowers have only a gynoecium

Explanation:

Answer:

Lungs

Explanation:

Since the blood is deoxygenated it will need to pick up oxygen which is done in the lungs

Answer:

Sugars move from “source” to “sink” ... Sugars produced in sources, such as leaves, need to be delivered to growing parts of the plant via the phloem in a process called translocation, or movement of sugar. The points of sugar delivery, such as roots, young shoots, and developing seeds, are called sinks.

Explanation:

u will get 10 out of 6

Answer:

i am not sure but i think the sugar canen makes the sugar

Explanation:

Answer:

D.)

Explanation:

Answer:

CCA

Explanation: