Please help!!What is it??

Answer:

The answer is Sexual Reproduction

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Answer:

Franklin took Photo 51 after scientists confirmed that DNA contained genes. Maurice Wilkins, Franklin´s colleague showed James Watson and Francis Crick Photo 51 without Franklin´s knowledge. Watson and Crick used that image to develop their structural model of DNA.

Explanation:I took that but if ya read it you will know what it is trust me.

Answer:

ventricles (VEN-trih-kuhls): The two chambers at the bottom of the heart are called the ventricles. The heart has a left ventricle and a right ventricle. Their job is to pump the blood to the body and lungs.

Explanation:

Answer:

There is a great deal of diversity in life on Earth because the planet has so many different climates that life has adapted to and colonized.

Explanation:

Answer:

Antarctic plate

Explanation: The Antarctic Plate started to subduct beneath South America 14 million years ago in the Miocene epoch. At first it subducted only in the southernmost tip of Patagonia, meaning that the Chile Triple Junction lay near the Strait of Magellan.

Answer:

Waves are most commonly caused by wind.The size of a wave depends on three factors: the distance over which the wind blows across open water, the strength of the wind, and the duration that the wind blows. The larger these factors, the larger are the waves.

Explanation:

Answer: The correct statements are 1 and 2:

1.Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant.

2.Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species.

Explanation:

Pollination is the transfer of pollen grains from an anthers to a receptive stigma. In most species of flowering plants, external agents bring about pollination. Also, flowers have evolved special structures and mechanisms to ensure successful pollination.

There are two types of pollination

--> Self pollination: This takes place when mature pollen grains from the anther of a flower fall on the stigma of the same flower or that of another flower on the same plant. This type of pollination brings the male gametes and egg cells of the same plant together. The resultant offspring show very little genetic variation.

--> Cross pollination: This occurs when mature pollen grains of a flower are transferred to the stigma of a flower of another plant of the same or closely related species. This brings the male gametes and egg cells of two different parent plants together. Therefore, there is greater genetic variation among the offspring.

Answer:

Apoptosis

Explanation:

Answer:

Apoptosis is programmed cell death, and it usually occurs when the DNA of the cell is damaged beyond repair. Photosynthesis and glycolysis are normal metabolic processes of the cell, and would not result from irreversible damage.

Explanation:

hope this helps

Answer:          Bilateral

Explanation:

symmetry is a type of symmetry in which only one plane divides an organism into halves that are roughly mirror images of each other. The halves need to be mirror images only on the exterior.

If more than one plane of symmetry exists for an organism's body, then it is radially symmetric.

Answer:

1.1 Amoeba

1.2 Paramecium

1.3 Citations

1.4 Single algae cells

A protozoa that moves using its pseudopodia is an amoeba, one using its flagellum is Euglena and a filamentous green alga is Spirogyra. Chlamydomonas is a unicellular green alga. Microscopic protists that are symmetrical, man-made and appear as glass-like ornaments are diatoms while a protist that looks like a fungus is a mold.

A protist is a type of eukaryotic organism which is not an animal, plant, or fungus sharing a common ancestor. These are to the exclusion of other eukaryotes which means protists do not form a natural group or clade.

Protists are a group of diverse eukaryotic mainly unicellular microscopic organisms which share certain morphological and physiological characteristics with animals or plants or both.

Several protists showing different functions like an amoeba pushes out its cell membranes to form pseudopods. Euglena belongs to the class of protozoans known as flagellates. Spirogyra has a slender bright green color with a spiral shaped pigment that holds chlorophyll. Chlamydomonas is found in ponds, ditches and moist soil. Diatoms have a silky jewel-like covering. A mold is a protist which is a fungus.

Thus, a protozoa that moves using its pseudopodia is an amoeba, one using its flagellum is Euglena and a filamentous green alga is Spirogyra. Chlamydomonas is a unicellular green alga. Microscopic protists that are symmetrical, man-made and appear as glass-like ornaments are diatoms while a protist that looks like a fungus is a mold.

Learn more about Protista, here:

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Answer:

true

Explanation:

Answer:

yes yes it does

Explanation:

Answer:

More than 8.7 million species are living on the planet. Every single species is composed of a cell and it includes both single-celled and multicellular organisms.

The cells provide shape, structure and carries out different types of functions to keep the entire system active. The cell contains different functional structures which are collectively called Organelles, and they are involved in various cellular functions.

Also Read: Difference between organ and organelle

Let us learn more in detail about the different types and functions of Cell Organelles.

Table of Contents

What are Cell Organelles?

List of Cell Organelles and their Functions

Plasma Membrane

Cytoplasm

Nucleus

Endoplasmic Reticulum

Mitochondria

Plastids

Ribosomes

Golgi Apparatus

Microbodies

Cytoskeleton

Cilia and Flagella

Centrosome and Centrioles

Vacuoles

A Brief Summary on Cell Organelles

Answer:

B

Answer: B

Explanation:

Evolution has changed the phisical atributes of all animals

Answer:

Ocean Thermal Energy Conversion (OTEC)

Explanation:

Answer:

Hydrogen bond

Explanation: Pretty much just a type chemical bond

Answer:

The correct answer is A. To get energy.

They eat other organisms because they need food, and food is considered energy because it allows the fish to function more efficiently.

Answer:

the point of science is to disprove hypothesis so having a hypothesis that doesn't allow that to happen is not good science

2. they don't fit in our mouths so are a trait from when we had larger jaws

3. bones of your lower jaw, middle ear and voice box (they aren't actually gills fyi, they just look like them)

4. likely yes as their bones were hollow but likely only able to fly short distances, the thought was that they couldn't do their size and weight but with hollow bones they were able to like a quail would

5. no because they could be sister taxa, you would have a hard time proving exactly that this new fossil is the common ancestor that birds came from to replace the old hypothesis (guess) of which one did.

Explanation:

Answer:

A: It is wrong to form a theory that cannot be disproven because the whole point of a theory is to test the theory and prove it.

B: Wisdom Teeth are considered to be a vestigial trait because it is passed along in genetics of humans and is a almost a 100% chance of occurrence.

C: This bird could fly because fossils and research has shown that this creature had similar bone structure to a common day bird.

D: This does not invalidate evolution because many geographic events can happen that may alter the positioning of these fossils like: Any type of corrosion or weathering, or maybe ancient civilization have dug up these fossils and then they were reburied.

Explanation:

For C you can look up archaeopteryx and find an article for evidence

Explanation:

There are two broad classes of seismic waves: body waves and surface waves. Body waves travel within the body of Earth. They include P, or primary, waves and S, or secondary, waves. P waves cause the ground to compress and expand, that is, to move back and forth, in the direction of travel.

Answer:

Pressure gradient

Explanation:

Hope this helps :)

Answer:

Pressure gradient

Explanation:

The change in pressure measured across a given distance is called a "pressure gradient". The pressure gradient results in a net force that is directed from high to low pressure and this force is called the "pressure gradient force". The pressure gradient force is responsible for triggering the initial movement of air

Answer: is crust

Explanation:

hope this helps :)

Answer:

D - Cell Division

Explanation:

This is because the DNA needs to be replicated in order for the cells to be able to divide and create new daughter cells.