Fossil evidence shows that some species changed very little over geologic time, while others changed gradually and at a relatively constant rate. In
many cases, however, species changed very rapidly during relatively brief time spans.
The pattern of punctuated equilibrium applies to the evolution of which group of species?
A all species that developed new adaptations over time
B. species that evolved very rapidly during relatively brief time spans
O
C. species that evolved gradually and at a relatively constant rate
D. species that changed very little over geologic time.
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Answer:

Explanation:

Water vapor is the gaseous phase of water.

Hope it helped you.

Answer: The full explanation below.

Explanation: The advantage of Relative dating is it can tell if a rock is older or younger that a certain object where the age is also not certain making it easier to tell when the other object was from, however it dose not give an exact age of the rock. Absolute dating is different because it gives you the exact age of the rock, but does not aid in find the age of any artifacts that can be found around it. Hope this helps! :D

Absolute dating establishes the exact age of a historical relic, whereas relative dating determines the order of age of several samples. Absolute dating is therefore a quantitative measurement, whereas relative dating is a qualitative measurement.

To date ancient events, geologists commonly use radiometric dating methods, which are based on the natural radioactive decay of certain elements such as potassium and carbon.

Relative dating is used to order geological events and the rocks they leave behind. The limitation of relative dating of fossils is that it does not provide the absolute age of the preserved fossils.

Absolute dating methods take physical properties of an object and use them to calculate its age.

Despite the fact that scientists exercise extreme caution when dating objects, recent studies show that they still make mistakes.

Because of incorrect setup, the dates used with this method are incorrect. The dates may not be consistent over long periods of time.

Thus, above mentioned are some advantages as well as disadvantages of two types of radiometric dating.

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Answer:

With diabetes, blood glucose is increased by normal glucagon activity, but the lack of or resistance to insulin means that blood sugar levels are unable to return to normal. This causes metabolic changes that result in diabetes symptoms like weakened blood vessels and frequent urination.

Answer:

where the organism lives, the food an organism eats, how the organism lives

Explanation:

Answer:

The correct option is A.

1, 11 and 111 only.

Explanation:

This is because mitosis is a type of cell division in which a single parent cell divide into daughter cells that are genetically identical to the parent cell or have the same number of chromosomes with the parent. This type of cell division occur during growth in the body and when there is need for cell replacement from old or damaged cells. It produce sex cell which are use for sexual reproduction.

Answer:

The correct answer is C. 1 and 11 only

Explanation:

Answer:

most eukaryotic cells that are not involved in the production of gametes undergo mitosis. These cells, known as somatic cells, are important to the survival of eukaryotic organisms, and it is essential that somatic parent and daughter cells do not vary from one another.

Explanation:

Answer:

Chloroplast, cell wall and cell membrane, vacuoles, and mitochondria

A. chloroplasts

B. Cell wall and cell membrane

C. Plastids

D. mitochondria

Answer:

There are several small products of photosynthesis but the main product is glucose . Another main product is oxygen as well.

Answer: the last one 1-0.125 doesn't equal 5/8, 5/8=0.0625 I believe the last one is the correct answer

Explanation:

Answer:

The reason why there is so much diversity of life, despite the fact that DNA is the same for all living things, the pairings are always the same and there are only six components that make up the DNA, is that sequences of base pairs are different.

Explanation:

DNA is the molecule that contains all the genetic information, whose structure consists of four nitrogenous bases, adenine, guanine, thymine and cytosine, plus deoxyribose and a phosphate group. This DNA molecule constitutes the basis of life and inheritance of all living beings.

The nitrogenous bases of DNA are found in a number and specific sequences, which determine the proteins and biomolecules that must be synthesized in the cells.

What makes different types of living beings and diversity of life is the length of the DNA and the sequence of bases that form part of each molecule.

The other options are not correct because:

Answer:

so you dont have to read all that the answer is

C. The sequence of base pairs are different

Explanation:

you're welcome

Answer:

how do u post question lol

Answer:

You need just one copy to be dominant. Let's assume A is dominant so A & B

Answer:

According to the diagram shown, the section of DNA used to make the mRNA strand is known as a gene (option 2).

Explanation:

Gene consists of a DNA fragment that codes for the synthesis of a specific protein that defines the structural or functional trait of a living being.

When DNA is transcribed into mRNA, each section of transcribed DNA is part of a gene. The information travels to ribosomes in the cytoplasm where protein synthesis occurs.

A complete DNA molecule forms a chromosome, which contains the genes with information to define specific traits of a species.

The other options are not correct because:

    1.Carbohydrate is a biomolecule that is not involved in the genetic process.

    3. Ribosome is where protein synthesis occurs.

    4. Chromosome is the complete DNA molecule.

The section of DNA being used to make the strand of mRNA is known as - 2.  gene

Thus, The section of DNA being used to make the strand of mRNA is known as - 2.  gene

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Answer:

Chloroplasts

Explanation:

they make sugar during photosynthesis.

Explanation:

hers done..........

......

Answer:

In a V-shaped valley

Explanation: Because the v-shaped valley has more of a slope than the others.

Answer:

Synthesis of organic molecules

Explanation:

AnsweR: C

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Answer:

Xylem cells

Explanation:

Answer: Xylem

Explanation:

Answer:

Pelvic bone

Explanation:

To correctly answer this, we need the level of organization to which the two given examples belong to.

The kidney and the heart are regarded to as organs. They are called organs in the sense that different tissues fuse into them to make them organs

Now, the answer we are to select will be an organ too

Digestive system is incorrect as we can see that this is a system. It is at a higher level of organization compared to kidney and heart

The Blood is incorrect. The blood is generally regarded as a tissue

The nerve cell is a cell and as such is at a lower level of organization

The correct answer is the pelvic bone

This is because, generally, a bone is regarded as an organ and the pelvic bone is a bone too. Hence, it is only right to state that the pelvic bone stands at the same organization level as the kidney and heart

Answer:

G

Explanation:

I’m smart

Answer:

A producer

Explanation:

The trophic level which has the most amount of energy is the producer. Thus, the correct option is A.

The trophic level of an organism is the position which it occupies in a food web. A food chain is a succession of organisms which eat other small and simple organisms and may, in turn, be eaten up themselves or by higher organisms. The trophic level of an organism is the number of steps which it is from the start of the chain.

The food chain follows 10% energy law, where 10% of the energy is transferred to the next trophic level, this decrease with every trophic level limits the number of trophic levels in a food chain. The maximum energy is present in producers which perform photosynthesis.

Therefore, the correct option is A.

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Answer:

I-

Explanation:

Answer:

Different nucleotides can be created by altering the codons.

-Mutations

-Chemicals

-Insertion/Deletion

-Replication errors

-Genetics

Answer:

humans are adapted to a wide range of environments, and genetic variation leads to phenotypic variation

Explanation:

It has been shown that the average genetic variation between human individuals is about 0.1% (i.e., one base pair out of every 1,0000 are different between any two individuals). This value seems low, but it is huge when we consider that the current estimate for the world population is 7,800,000,000 people. The phenotype is the result of the interaction between genotype and environment. Genetic variation is the raw material that enables some individuals to adapt to different environments. As species, humans have a high genetic diversity in order to develop a wide range of phenotypes well adapted to different environmental conditions.

Answer:

It is true

Explanation:

pls mark brainliest

Answer:

True

Explanation:

Autotrophs are producers because they can make their own food. Heterotrophs are known as consumers because they consume producers or other consumers.

Answer:

Living things are highly organized and structured, following a hierarchy that can be examined on a scale from small to large. The atom is the smallest and most fundamental unit of matter. It consists of a nucleus surrounded by electrons. Atoms form molecules. A molecule is a chemical structure consisting of at least two atoms held together by one or more chemical bonds. Many molecules that are biologically important are macromolecules, large molecules that are typically formed by polymerization (a polymer is a large molecule that is made by combining smaller units called monomers, which are simpler than macromolecules). An example of a macromolecule is deoxyribonucleic acid (DNA) (Figure 1), which contains the instructions for the structure and functioning of all living organisms.



Figure 1. All molecules, including this DNA molecule, are composed of atoms. (credit: “brian0918″/Wikimedia Commons)

Some cells contain aggregates of macromolecules surrounded by membranes; these are called organelles. Organelles are small structures that exist within cells. Examples of organelles include mitochondria and chloroplasts, which carry out indispensable functions: mitochondria produce energy to power the cell, while chloroplasts enable green plants to utilize the energy in sunlight to make sugars. All living things are made of cells; the cell itself is the smallest fundamental unit of structure and function in living organisms. (This requirement is why viruses are not considered living: they are not made of cells. To make new viruses, they have to invade and hijack the reproductive mechanism of a living cell; only then can they obtain the materials they need to reproduce.) Some organisms consist of a single cell and others are multicellular. Cells are classified as prokaryotic or eukaryotic. Prokaryotes are single-celled or colonial organisms that do not have membrane-bound nuclei or organelles; in contrast, the cells of eukaryotes do have membrane-bound organelles and a membrane-bound nucleus.

In larger organisms, cells combine to make tissues, which are groups of similar cells carrying out similar or related functions. Organs are collections of tissues grouped together performing a common function. Organs are present not only in animals but also in plants. An organ system is a higher level of organization that consists of functionally related organs. Mammals have many organ systems. For instance, the circulatory system transports blood through the body and to and from the lungs; it includes organs such as the heart and blood vessels. Organisms are individual living entities. For example, each tree in a forest is an organism. Single-celled prokaryotes and single-celled eukaryotes are also considered organisms and are typically referred to as microorganisms.

All the individuals of a species living within a specific area are collectively called a population. For example, a forest may include many pine trees. All of these pine trees represent the population of pine trees in this forest. Different populations may live in the same specific area. For example, the forest with the pine trees includes populations of flowering plants and also insects and microbial populations. A community is the sum of populations inhabiting a particular area. For instance, all of the trees, flowers, insects, and other populations in a forest form the forest’s community. Keep in mind that the community level only consists of living organisms. The forest itself is an ecosystem; this is the first level that contains non-living aspects of a given area that impact the living things in that environment. An ecosystem consists of all the living things in a particular area together with the abiotic, non-living parts of that environment such as nitrogen in the soil or rain water. At the highest level of organization (Figure 2), the biosphere is the collection of all ecosystems, and it represents the zones of life on earth. It includes land, water, and even the atmosphere to a certain extent.

Answer:

No tetrads are formed in mitosis.

Explanation: Tetrads are formed in meiosis and lead to genetic recombination. After the formation of tetrads crossing over occurs. In humans, 23 tetrads are formed in meiosis.

Answer:

silviculture should follow natural processes.

foresters should plan for the long-term and science should guide them.

forests have intrinsic value, humans need to extract forest products, and social and economic concerns are important.

Explanation:

took the test and notes.