Ernest was looking at the following diagram of a cell. Which statement best explains how he should classify the cell?


A. He should classify the cell as a plant cell because it has a cell membrane.

B. He should classify the cell as an animal cell because it has a flagellum.

C. He should classify the cell as a plant cell because it has cytoplasm.

D. He should not classify the cell as either a plant cell or an animal cell.

Answer:

7 thats answer

Explanation:

Answer: A or D

Explanation:

Answer:

Aquatic animals can be found in water habitats, which can be either fresh or marine. Terrestrial animals can be found exclusively in the land. Aquatic animals respire through gills or their skin. ... The main difference between aquatic and terrestrial animals is their habitat and modes of living

Explanation:

Answer:

being destroyed easily

Explanation:

aquatic organisms are faced with lots of challenges,,,eg.....oilspillage on water bodies,this prevents entry of oxgen into water hence suffocation leading to death,also growth of weeds such as water hyacinth which suck nutrientss and oxygen from water,,,also aquatic krganisms are hunted by lots of predators compared to that of terrestrial

Answer:

Bones produce blood cells. So, if there are no bones in our body, then our body cannot make blood. So the answer is B.

Answer:

A. White dwarf

Answer:

The right answer is C

Explanation:

Answer:

C

Explanation:

Because in ecosystem 1, the animals that eat insects have more sources of food than just insects, so that ecosystem would surive if the insects were to decline since the animals dont depend on JUST insects to surive

Answer:

a.When an organism is heterogeneous for a trait, it expresses only the dominant allele

b. A child will be born with CF only if they inherit one CF gene from each parent. A person who has only one CF gene is called a CF carrier. They are healthy and don't have the disease. But they are a carrier of the disease.

Explanation:

a.In other words, the dominant trait always masks the recessive trait.

b.A parent can be a CF carrier, and pass the CF gene on to their child.

Answer:

As air pressure decreases so does density of gas particles

Explanation:

Answer:

C) It persists until the environment changes.

Explanation:

Hope this helps

Answer:

I think the option C is correct

The statement best describes the classification of these organisms was changed is the archeabacteria and eubacteria habitats were too different to be classified in the same kingdom.

Archaea is a domain of single-celled organisms. These microorganisms lack cell nuclei and are therefore prokaryotes. Archaea were initially classified as bacteria, receiving the name archaebacteria.

Archaeal cells have unique properties separating them from the other two domains, Bacteria and Eukaryota. Archaea are further divided into multiple recognized phyla. Classification is difficult because most have not been isolated in a laboratory and have been detected only by their gene sequences.

The common characteristics of Archaebacteria known to date are these: (1) the presence of characteristic tRNAs and ribosomal RNAs; (2) the absence of peptidoglycan cell walls, with in many cases, replacement by a largely proteinaceous coat.

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Answer:

Mitosis

Explanation:

Mitosis produces new cells, and replaces cells that are old, lost or damaged for a person's body cells.

Answer:

In the atmosphere, carbon is attached to oxygen in a gas which is called carbon dioxide and through the the process of photosynthesis, it is pulled from the air to produce food made from carbon for plant growth. And through food chains, the animals that eat plants get that carbon and so do the animals that eat those animals.

When an animal dies, their bodies as well as wood and leaves decaying brings the carbon into the ground.

Answer:

Oxygen

Explanation:

Answer:

yes thats right, its the sun

Answer:

B. Pioneer

Explanation:

The first species to arrive are fast-growing “weedy species,” such as lichens or small annual plants, which create the first layers of soil as they decompose.

Answer:

B. Pioneer

Explanation:

The pioneer group is the first species to arrive in ecological succession. Hence, option (B) is the correct answer.

Hi, rachellelunaa!!

I think the reason we have so many bones is because, firstly, the cranium is such a unique shape that we need multiple bones to form it. Also, another reason we are born with separate cranial bones is that when a baby is born, there is an incredible amount of pressure being administered to the baby during the process. The many unfused bones allow the child's head to be malleable, and therefore preventing damage to the skull and brain. As we grow, we no longer need these bones to be malleable and they fuse together.

I really hope this answers your question!!

The sutures are flexible, the bones can overlap during birthing, preventing the baby's head from pressing against the baby's brain and causing damage.

Skeletal structure of the head. The cranium, which surrounds and protects the brain, is made up of cranial bones and facial bones (bones that form the eye sockets, nose, cheeks, jaw, and other parts of the face).

The two remaining cranial bones are covered by the frontal bone. The sphenoid bone and ethmoid bone are these.

Behind your eye sockets, the sphenoid bone supports the muscles of your face. At the peak of your nose, between your eye sockets, is the ethmoid bone.

Therefore, preventing damage to skull and brain, we are born with separate cranial bones.

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Answer:

The moss would be a pioneer species.

Explanation:

Answer:

D: Genetic material composed of DNA

Hope this helps! :)

Answer:

Explanation:

b I’m pretty sure

Answer:

The answer is D.

Explanation:

The Genus is capitalized whereas the species is not.

Answer:

B

Explanation:

Ducks have the webbed feet so, they could swim in the water so they don't drown. That is animal adaptation to the environment.

Based on the given table, the animal with a behavioral adaptation is the squirrel, which collects and stores food. This adaptation gives the squirrel an advantage by helping it survive during times when food is scarce, such as during the winter months, which is in the third option.

The behavioral adaptation of collecting and storing food is an important survival strategy for many animals, including squirrels. During times of abundance, such as the fall months, squirrels will collect and store food, such as nuts and seeds, in order to have a food source during times of scarcity, such as the winter months. This allows the squirrel to survive and avoid starvation during times when food is less readily available.

Hence, Based on the given table, the animal with a behavioral adaptation is the squirrel, which collects and stores food. This adaptation gives the squirrel an advantage by helping it survive during times when food is scarce, such as during the winter months, which is in the third option.

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Answer:  flagellum, a plasma membrane and organelles.

Explanation: In that sense, it can be difficult to find traits that they all share. Still, Project Oceanography at the University of San Francisco indicates that single-celled organisms have a number of common characteristics, including the presence of flagellum, a plasma membrane and organelles.

Flagellum, a plasma membrane and organelles classify different kinds of single celled organism and prokaryotic organism.

Prokaryotic cell are single celled organism, do not have membrane bound organelles and its size varies from 0.2 μm – 2.0 μm.

Here the Cell wall is present but True Nucleus is absent, the cell wall is mainly involve in photosynthesis and provide protection to cell, the ribosomes are Smaller in size having 70s type and spherical in shape.

Circular DNA is present as genetic material in prokaryotes, Mitochondria is absent in prokaryotes, the reproduction usually occur by binary fission and some times it occurs through conjugation.

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Answer:

14 Hydrogen is a very reactive gas, and the alkali metals are even more reactive. In fact, they are the most reactive metals and, along with the elements in group 17, are the most reactive of all elements.

15 The halogen group of elements is the most reactive of the nonmetals. It is also the most reactive group of all chemical elements. Fluorine is the most reactive element in this group. Halogens are highly reactive because they are all electronegative.

16 Group 8A — The Noble or Inert Gases. Group 8A (or VIIIA) of the periodic table are the noble gases or inert gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). The name comes from the fact that these elements are virtually unreactive towards other elements or compounds.

17 Group 1: Alkali Metals

Group 1 elements are called alkali metals because of their ability to displace H2(g) from water and create a basic solution. Alkali metals are also known to react violently and explosively with water.

Answer:

A would be the best answer.

Explanation:

A seems to be the answer that matches data shown on the graph.

Answer:

Antibiotic use promotes development of antibiotic-resistant bacteria. Every time a person takes antibiotics, sensitive bacteria are killed, but resistant germs may be left to grow and multiply. Repeated and improper uses of antibiotics are primary causes of the increase in drug-resistant bacteria.

The resistant bacteria can reproduce rapidly because their competition (the non-resistant bacteria) has been destroyed by the antibiotic. When the resistant bacteria reproduce, they produce genetically-identical copies. These copies will all be resistant to the antibiotics.

Hope this helps :)

Explanation:

cancer cause due to uncontrolled divisions of the cell because of gene mutations or presence of oncogenes which destroy or destabilise the checkpoints that prevent or controll cell division