Select the correct answer.
Over the last 250 million years, the world changed from a single land mass to a number of different continents. One reason for the change is
expanding ocean floors. What causes ocean floors to expand?
A. convergent plates
B. divergent plates
C. slab pull
D. uplift

The condition best explains the high atrazine level in the birds is biological magnification. The correct option is D.

Biological magnification is the occurrence of any chemical in the body of a living organism than in outer space or the environment. The chemicals can be toxins or pesticides. They are present within the tolerant level in the tissue.

Here, the atrazine level is high in frogs and small fish than in the surrounding water, which is going in birds.

Thus, option D. biological magnification is correct.

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Answer:

I think it's 4 hope it's correct

Explanation:

where is table...add pic

Answer:

the answer was A and D

Explanation:

here is a pic

Answer:

The nucleotide is the monomer of DNA

Explanation:

This is because they are made up of (deoxyribose) and a phosphate residue. The four bases are adenine (A), cytosine (C), guanine (G) and thymine (T).  Which are all components of DNA

Answer:

C. nucleotide

Explanation:

The monomers of DNA are known as the nucleotides.

Answer:

1 do i of

Explanation:

Answer:

Planning a municipal park

Explanation:

Landscape architects are dedicated to building squares, parks, places mainly for a public purpose.

Answer:

C

Explanation:

After a certain temperature, the reaction rate decreases because the heat starts to denature the enzyme so that it no longer can function.

Answer:

C. Rate of reaction decreases

Explanation:

As an enzyme becomes denatured, the rate of reaction decreases.

Answer:

phosphate group ,ribose and nitrogenous bases

Answer:

AAG

Explanation:

is the silent one in this case

Answer:

what is there to pick from?

Explanation:

The option that does not provide evidence that living things have been evolving for millions of years is intelligence. The correct option is C.

In science, evidence refers to any observations, measurements, or facts that support or refute a hypothesis or theory.

Intelligence is not a factor that provides evidence for evolution. The process of evolution is driven by natural selection, genetic mutations, and other biological factors, not intelligence.

On the other hand, the other answer choices are all factors that provide evidence for evolution:

(A) Fossil record: provides evidence of changes in species over time.

(B) Natural variation within a species: provides the raw material for evolution to act upon.

(D) Homologous structures of living organisms: provide evidence of common ancestry and evolution over time.

(E) Similarities in embryological development: provide evidence of shared evolutionary history and common ancestry.

Thus, the correct option is C.

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Your question seems incomplete, the probable complete question is:

Which would NOT likely be used as evidence of evolution?

(A) fossil record (B) natural variation within a species (C) intelligence (D) homologous structures of living organisms (E) similarities in embryological development

Answer:

the answer would be c meiosis 2

Answer:

B. Meiosis 1

Explanation:

Just took the test

Answer:

Explanation:

1. False and should read as - The periosteum contains osteocytes and osteoclasts.

2. True - Osteoclasts secrete bone matrix.

3. True - Compact bone is the hard, outer bone.

4. False and should read as - Spongy bone is composed of spicules called osteons.

5. True - Spongy bone houses red and yellow bone marrow.

6. False and should read as - Perforating fibers anchor the endosteum to the superficial surface of a bone

Answer:C

Explanation:

Answer:

magnesium

Hence the name of the element is magnesium?

is that right ?

Answer: Mixed Farming

Explanation:

With Linda working with Rice and Corn, while still involving her cattle and livestock, this makes it a Mixed Farming situation with how she integrates the other options.

Answer:Advantages and disadvantages of sexual and asexual reproduction

Sexual reproduction involves two parents and the joining of male and female gametes during fertilisation. The offspring inherit a mixture of genes from both parents, so are different to each other and their parents.

The advantages of sexual reproduction:

produces genetic variation in the offspring

the species can adapt to new environments due to variation, which gives them a survival advantage

a disease is less likely to affect all the individuals in a population

In asexual reproduction there is only one parent. The offspring are clones of the parent and each other.

The advantages of asexual reproduction include:

the population can increase rapidly when the conditions are favourable

only one parent is needed

it is more time and energy efficient as you don't need a mate

it is faster than sexual reproduction

The disadvantages of sexual reproduction:

time and energy are needed to find a mate

it is not possible for an isolated individual to reproduce

The disadvantages of asexual reproduction include:

it does not lead to genetic variation in a population

the species may only be suited to one habitat

disease may affect all the individuals in a population

Examples in the natural world

Bacterial reproduction

Bacteria, such as E. coli, reproduce asexually. An advantage of this is that they can produce many bacteria very quickly. A disadvantage is that all of the bacteria are genetically identical. If an antibiotic was used on the bacteria, then all of them would die. The population would be wiped out. The only way for variation to be introduced into the population is by random mutation.

Rabbit reproduction

Most animals reproduce sexually, for example, rabbits. The process of sexual reproduction introduces variation into the species because the alleles that the mother and the father carry are mixed together in the offspring. A disadvantage is that sexual reproduction takes longer than asexual reproduction. A mate must be found, the egg must be fertilised by sperm, and then the offspring develop. The benefit of introducing genetic variation into the species, however, outweighs this disadvantage. If a disease were to hit the rabbit population, then perhaps not all of the rabbits would be affected because of the variation in the population. This means that some individuals would survive and be able to reproduce and generate more offspring.

Asexual and sexual reproduction in fungi

Some fungi are able to reproduce both sexually and asexually. Fungi reproduce using spores which they release into the environment. A new fungus will grow from the spore. The Coprinus cinereus fungus can produce spores by sexual reproduction to help create variation in the species. This method of reproduction is advantageous when the environment is changing because the variation introduced leads to an increase in the probability that a variant that can deal with the change. Coprinus cinereus also produces spores by asexual reproduction. These spores can be produced quickly and in large numbers to enable many individual fungi to develop. A disadvantage of these spores is that they generate offspring that are unlikely to be resistant to unfavourable conditions because they are all genetically identical.

Common inkcap mushrooms

Some mushrooms can carry out both asexual and sexual reproduction depending on their environment

Explanation:spores can be produced quickly and in large numbers to enable many individual fungi to develop. A disadvantage of these spores is that they generate offspring that are unlikely to be resistant to unfavourable conditions because they are all genetically identical.

Common inkcap mushrooms

Some mushrooms can carry out both asexual and sexual reproduction depending on their environment

Answer:

hope this helps!

Explanation:

When a nerve impulse reaches the end of an axon, the axon releases chemicals called neurotransmitters. Neurotransmitters travel across the synapse between the axon and the dendrite of the next neuron. ... The binding allows the nerve impulse to travel through the receiving neuron.

source: https://flexbooks.ck12.org/cbook/ck-12-middle-school-life-science-2.0/section/11.41/primary/lesson/nerve-cells-and-nerve-impulses-ms-ls

Answer:

When a nerve impulse reaches the end of an axon, the axon releases chemicals called neurotransmitters. Neurotransmitters travel across the synapse between the axon and the dendrite of the next neuron. ... The binding allows the nerve impulse to travel through the receiving neuron

Answer:

Chlorofluorocarbon.

Explanation:

Chlorofluorocarbon is the chemical compound that is responsible for the thinning of ozone layer present in the stratosphere. This Chlorofluorocarbon is used in the refrigerators and aerosol sprays. The major environmental consequence of the depletion of stratospheric ozone is the melting of glaciers in the Antarctica. It also has adverse effect on humans because it is responsible for the skin cancer disease in humans. Breathing ground-level ozone can trigger a variety of health problems such as chest pain, coughing, throat irritation, and congestion.

Answer:

Explanation:

Genetic engineering is faster than the process of natural selection.

Natural selection is natural process and it works over generations, while genetic engineering involves desired modification of traits.

Both genetic engineering and natural selection work on all organisms, including humans.

Answer:

A) Fossil Fuels, Minerals

Have a nice day!

Answer:

i think the answer is Minerals

Answer:

Yes.

Explanation:

Yes, the structures and functions of the central nervous system work to help prevent injuries with the help of bone. The main line of defense of central nervous system is the bones of the skull and spinal column, which create a hard physical barrier to injury. If these line of defense are not present for central nervous system so it has more chances to get injury so we can say that the structures and functions of the nervous system helps to prevent injuries.

Answer:

Cell membrane

Explanation:

Cell membrane is found in both animal and plant cells

Answer:

D) Silent mutation on second codon, third amino acid changed from ILE to ASN.

Explanation:

Silent mutations are usually point mutation where you change one nucleotide. Since, the nucleotide changed is the third position, it does not affect the protein being manufactured (it will still put the amino acid Ala) [look up the codon redundancy on youtub.e to understand how awesome nature is!]

On the other hand, the other mutation introduced is Missense mutation where a different Amino acid is added due to change in codon (goes from ILE to ASN).

Day length helps plants to regulate their internal clock

source: g00gle

Answer:

When the day length is fewer than 10 hours, most plants do not grow. Even if the temperature is kept within the ideal range — say, in a climate-controlled greenhouse — most plants will go dormant until the magical 10 hours of sunshine per day arrives.

Explanation:

industrial preparation of oxygen from liquify air

Answer:

Six to 10 days after fertilization, the embryo attaches, or implants, itself into the lining of the uterus. During the next week or so, the embryo receives its nourishment and oxygen from the cells that make up the lining of the uterus. The two layers of cells become more pronounced.