After a volcano erupts and destroys an ecosystem, a few organisms are able to begin growing from the decaying organic matter left behind. What do we call those organisms that are able to grow in little or no soil that first appear?

The phylum Arthropoda contains a wide diversity of animals with hard exoskeletons and jointed appendages. Many familiar species belong to the phylum Arthropoda—insects, spiders, scorpions, centipedes, and millipedes on land; crabs, crayfish, shrimp, lobsters, and barnacles in water (Fig. 3.72).

Answer:

Mutation can occur or the order in which these genes appear are in different order. Genetic variation can also occur.

Answer:

Trilobites are one of the dominant species on Earth

We know it's not D, the age of reptiles was just a "wee" bit before humans, and amphibians came after trilobites.

Answer

F1 development of the ozone layer

S2 sharks and trilobites abundant in oceans

T3 plants and animals colonize land

F4 dominance of reptiles >> dominance of mammals

Answer:

1) True

2) True

3) False

4) True

5)True

Answer:

The genotype of the father: Ff

The genotype of the mother: ff

The genotype of the two children without freckles: ff

The genotype of the two children with freckles: Ff

Explanation:

Freckles (F) are is dominant trait, so one dominant allele in the genotype of an individual will cause he/she to have freckles.  Since the father has freckles, but only two of his children has freckles; that means that he has a heterozygous genotype.  In the Punnett Square, the offsprings' genotypes are shown, as well as the parents'.

A freckled man marries a woman without freckles, and they have four children, two with freckles and two without, so the genotype of the parents are Ff, ff and the children with freckles are Ff, while the freckleless are ff types.

There are both dominant and recessive traits that determine the person's quality, such as freckles, which are dominant over being freckleless. When the parents with freckles cross with the parents without freckles, they will produce half the freckles and half the freckleless. The parent with a freckle is heterozygous (Ff), so two types of gametes will be produced, such as F and f, and will form Ff and ff offspring when crossed with the freckleless parent (ff).

Hence, a freckled man marries a woman without freckles, and they have four children, two with freckles and two without, so the genotype of the parents are Ff, ff and the children with freckles are Ff, while the freckleless are ff types.

Learn more about the freckle here.

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Answer: short, straight teeth

Explanation: study island

Answer:

that's the answer I got

if it's not enough just tell me

Answer:

The phosphorus cycle:  is a sedimentary cycle (unlike carbon, oxygen, and nitrogen),Phosphorus enters the biosphere almost entirely from the soil through absorption by plant roots.

The sulfur cycle is the collection of processes by which sulfur moves between rocks, waterways

Explanation:

Sedimentary cycles are the ones in which the reservoir is the Earth's crust.

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Answer:

She didn't cover the same distance for the new premium gasoline and regular gas

Explanation:

Answer:

the mitochondria in mammalian sperm are usually destroyed by the egg cell after fertilization.

Explanation:

Answer:

k

Explanation:

Answer:

Glue and sawdust.

Explanation:

Glue and sawdust are the substances that applied in wood to fill up cracks and grooves. You can use the glue and sawdust method to fill the gaps present in the wood. This method is a quick and easy solution that successfully fill up the gaps and grooves on the wood. The method of using this method is, first fill the gap with a small amount of wood glue, then rub sawdust into the gap which attached the saw dust with itself and the gaps are filled.

Answer:

D.Water and oxygen cannot pass through the cell wall

Explanation:

not sure

Answer:

biodiversity mean Biodiversity, also called biological diversity, the variety of life found in a place on Earth or, often, the total variety of life on Earth.

Explanation:

Answer: 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.

Explanation: Usually three levels of biodiversity are discussed—genetic, species, and ecosystem  diversity.

plants, animals, fungi, and microorganisms. It occurs within a species as

well as between species.

of species, as well as between different species.

and ecological processes, as well as variation within individual ecosystems.

Answer:

mutualism -Both species benefit

commensalism- One species lives with, on, or in another species (the host). The host species neither benefits nor is harmed from the relationship. The species that lives on the host is benefited.

parasitism - One species (the parasite) lives with, on, or in a host species, at the expense of the host species. Unlike in predation, the host is not immediately killed by the parasite, though it may sicken and die over time.

predator/prey -One species (the predator) hunts and kills another species (the prey)

competition -The struggle among organisms for the same limited resources in an ecosystem

Explanation:

Answer:

D

Explanation:

Fire is man made because for there to be fire you have to strike a match or use other man made sources

Answer:

Yes

Explanation:

In sediments or sedimentary rocks the porosity depends on grain size, the shapes of the grains, and the degree of sorting, and the degree of cementation. Well-rounded coarse-grained sediments usually have higher porosity than fine-grained sediments, because the grains do not fit together well

Answer: conifer

Explanation: I took a test with the same question and I got it right but other than that I have no explanation

Answer: conifer

Explanation: i took the quiz and got it right

hope it helps:)

classic ecosystem

Explanation:

because i love

Answer: D

Secondary Succession

Explanation:

I took the quiz.

Answer:

I belive the answer would be c...Im sry if im not right

Explanation:

Answer:

C. Return fixed nitrogen to the soil

Explanation:

I'm so sorry if I'm not correct

Answer:

answer is c

Explanation:

hope it helps!!!

Answer:

The first, which was published in 2014 and included the review of 147 studies, concluded that GM crops have allowed an average increase in agricultural yield by 22 percent and increased farmers' profits by 68 percent, with profit margins even larger in developing countries.Explanation:

Answer:

Divergent plate  

Explanation:

A semi ocean ridge is formed by the interaction of divergent boundaries. Around divergent plate boundaries, as additional sea floor is formed as the Earth's tectonic plates expand outward, half ridges form. Igneous material grows to the ocean bottom when the plates split, resulting in massive basalt volcanic activity.

Answer: Raptorial birds especially the forest eagles, hawk-eagles, Accipiter hawks, and falcons are the most likely species to prey on adult parrots and macaws.

Explanation:

Answer:

i am a little confused do you mean what predators kill parrots or if it is predators then raptors like  owls eagles and hawks cats like jaguars

Explanation:

Answer:

B. condenses

Explanation:

Clouds form when water vapor condenses.

Explanation:

Hope this is helpful

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Blood has RBC's, WBC's, platelets and a fluid called plasma. Whereas lymph has WBC's and watery fluid. They both have immune and also circulatory functions in them. One of the major differences between them is that blood flows through blood vessels and lymph through lymphatic vessels.

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Answer:

ZOOM PLZ COME WE R BORED

MEETING ID 798 4170 2552

PASSWORD:XCNeV3

Explanation:

Answer:

1.Law of conservation of energy

2. Energy transformation

3.Friction

4. electric, thermal

5. Kinetic, Potential

6. Potential, Kinetic

7.Kinetic

8.Radiant, electrical

9. Electrical

10. Radiant