Which of the following are true about the Cambrian explosion?

Fossil evidence is found in the evaporites in Texas

A diversity of different phyla with huge anatomical differences all appear at once in the fossil record

Fossil evidence is found in the Burgess Shale

provides evidence for many transitional species with very little anatomical difference

Marks the beginning of the Paleozoic era

It marks the beginning of the Cambrian period

Answer:

In animal cells: vacuoles are generally used for storage and can have nutrients, water or waste

In plant cells: vacuoles help store water and push against cell wall and keeps the plant rigid.

Explanation:

Answer:

Throught genetics varaition. Crossing over and all

Explanation:

Becuase I said so

Answer: Semi-conservative replication means that during DNA replication, the two strands of nucleotides separate. Both strands then form the template for free nucleotides to bind to to create the two identical daughter strands. Hence each daughter strand has half of the DNA from the original strand and half newly-formed DNA.  brainliest

Explanation:

The statement cell division allows multicellular organisms to grow is definitely true.

Cell division may be defined as the process by which cells multiply involving both nuclear and cytoplasmic division.

Almost all multicellular organisms use the mechanism of cell division for growth and the proper maintenance and repair of cells as well as tissues.

Therefore, the statement cell division allows multicellular organisms to grow is definitely true.

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Claire's symptoms, related to metabolism and homeostasis, indicated a problem in her small intestine rather than her stomach. The digestion reaction rates suggested that the issue was specific to the small intestine.

Claire's symptoms, not specified in the prompt, were likely indicative of disrupted metabolism and homeostasis. Metabolism refers to the chemical processes that occur within an organism to maintain life, while homeostasis involves maintaining a stable internal environment. The symptoms could include difficulties in nutrient absorption, weight loss, imbalanced blood glucose levels, or disrupted electrolyte levels.

Digestion reaction rates provide important clues to pinpoint the source of the problem. The stomach primarily digests proteins using gastric enzymes like pepsin, while the small intestine is responsible for further digestion and absorption of nutrients. If Claire's digestion reaction rates were normal, indicating proper protein digestion, it suggests that the issue lies in the small intestine rather than the stomach. This could imply problems with the production of digestive enzymes, impaired absorption surfaces, or other factors affecting the small intestine's ability to process and absorb nutrients effectively.

In summary, Claire's symptoms suggested a disturbance in metabolism and homeostasis, possibly linked to a problem in her small intestine. The digestion reaction rates pointing towards the small intestine as the issue indicate a specific problem with nutrient digestion and absorption in that region of the digestive system.

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Answer:

the amino a acid sequence would be  identical to human cell

becuuse the codes sequencing is simialr in all animals

Answer:

Transcription factors

Explanation:

i just learnd that in biology class...

Explanation:

Lots of places were affected, extinction; in species, vertebrates, etc, etc.

Extinction-- in marine species...

Answer:

Peripheral membrane proteins are found on the outside and inside surfaces of membranes, attached either to integral proteins or to phospholipids. Unlike integral membrane proteins, peripheral membrane proteins do not stick into the hydrophobic core of the membrane, and they tend to be more loosely attached.

Explanation:

The following characteristics inform anthropologists as to the bipedal status of the australopithecines is d. all of these answers are correct

Anthropologists have utilized various characteristics to ascertain the bipedal status of the australopithecines. Anthropologists have used several features to determine the bipedal nature of the australopithecines. Evidence of their heel-strike and toe-off locomotion, evidence of a convergent hallux (big toe), and evidence of lumbar lordosis all contribute to their bipedal status.

Because the Australopithecines’ locomotive pattern and anatomical characteristics demonstrate their bipedal nature, they were bipedal. In addition, they have several other anatomical features, such as a backwardly positioned foramen magnum and a modified pelvic structure, that also indicate bipedalism. They walked upright, in a way that was more similar to humans than to apes. So therefore the correct option is d) all of these answers are correct.

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Answer:

Option C

Explanation:

Option C makes the most sense because it is true.

I hope it helps!!!

Answer:

An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. Humans are called diploid organisms because they have two alleles at each genetic locus, with one allele inherited from each parent.

Explanation:

Osmosis and diffusion are two essential processes that happen in our body. Both the processes have certain similarities that are as follows:

Both allow solute molecules to move across a semipermeable membraneBoth move molecules from areas of high concentration to areas of low concentration. Therefore, option (D) is correct regarding the similarities between osmosis and diffusion. It is also essential to note that osmosis and diffusion differ in the types of molecules being transported and in the direction of transportation. In diffusion, all types of molecules and particles can move, while in osmosis, only water molecules can move.

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Answer:

B. allows processes as growing and repair tissues in the body.

Explanation:

Mitosis is a process where a single cell divides into two identical daughter cells. During mitosis one cell divides once to form two identical cells and the dividing cell's chromosomes are copied and then distributed equally between the two new nuclei of the daughter cells.

The major purpose of mitosis is for growth and to replace worn out cells. It also plays an important part in the development of embryos.

Mitosis is divided into five stages:

1. Interphase- during interphase, the DNA in the cell is copied resulting in two identical sets of chromosomes. Microtubules also extend from the centrosomes outside the nucleus

2. Prophase- during this phase, the sister chromatids in each chromosome pair up, the nuclear membrane dissolves and the mitotic spindle consisting of microtubules and other proteins extend across the cell between the centrioles which move to opposite ends of the cell.

3. Metaphase- the chromosomes line up at the centre of the cell and the mitotix spindle attaches to eachmof the sister c hromatids.

4. Anaphase- the sister chtomatids are pulled apart to each end of the cell by the mitotic spindle.

5. Telophase- at each pole, a full set of chromosomes gather together, a membrane encloses each chromosome, the cell pinches at the middle and then divides into two. This is known as cytokinesis.

Answer:

TRUE

Explanation:

The nervous system only exists in animals. Neurons are the nerve cells that compose the nervous system.

The neuron´s principal function is to catch stimuli from the exterior convert them into nerve impulses that get transported to the control centers. These control centers interpret the signal and send an answer to the stimuli.

The control centers in invertebrates are ganglia, while the vertebrate´s control centers are the spinal medulla and the encephalon.

The signal transport occurs from cell to cell in inferior animals and through nerves in superior animals.

There is a progressive increase in the complexity of the nervous system. It evolved from primitive animals to the most superior ones. This evolution is especially noticeable in the development of the encephalon as the control center.

However, the basic nerve cell is very similar in all animals.

Answer:

Explanation:

13.5 billion years

Answer: Isaac Newton

Explanation: Sir Isaac Newton put forward the universal law of gravitation in 1687 and used it to explain the observed motions of the planets and moons

The combining form ischi-o with its closest definition is ischium, hence option B is correct.

The closest definition of the combining form ischi-o is ischium. The acetabulum is made up of the three pelvic bones, pubis, ilium, and pubis.

The hip joint is formed by the acetabulum, which connects to the head of the femur and is shaped like a cube or a socket and is located on the side of the pelvis. The hip joint and acetabulum allow us to easily run, walk, and move about.

It is a pair of pelvic bones that define the obturator foramen's inferior and posterior borders, as well as the lower and rear portions of the hip bone.

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Answer:

1. Renewable

2. wood

3. Sun ... Wind

4. Water

5. Electricity

Explanation:

Cyanobacteria are one of the most ancient groups of photosynthetic organisms. They played a critical role in the evolution of complex life on land by producing oxygen. They are also known as blue-green algae. They have existed on Earth for more than 3.5 billion years and played an essential role in creating Earth's oxygen-rich atmosphere. The emergence of cyanobacteria marks a significant point in Earth's evolution.

The presence of oxygen allowed for the development of complex organisms, including plants and animals. Cyanobacteria aided the evolution of complex life on land by their ability to photosynthesize. They were the first organisms to evolve a complex process that enabled them to use sunlight to convert carbon dioxide and water into oxygen and glucose.

This process is known as photosynthesis, and it is responsible for the oxygen-rich atmosphere of our planet. Cyanobacteria were the first photosynthetic organisms to produce oxygen. During Precambrian time, cyanobacteria produced more oxygen than any other organism. They were responsible for oxygenating Earth's atmosphere and allowing for the evolution of aerobic organisms.

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Answer:

The primary succession process can take hundreds of years to happen, even in medium amounts of rain and temperature.

Explanation:

The primary succession occurs when a community of plants begins to sprout in areas that have never been occupied by any type of living being. The primary succession occurs, for example, with the sprouting of vegetables in rocky outcrops. These plant species are known as primary species and although they are able to survive, these environments offer few resources for the development of living things. Generally, it takes hundreds and even thousands of years for primary succession to occur, even in environments with average temperature and precipitation.

Primary succession takes more than 100 years to occupy with medium amounts of rainfall and temperature.

Succession is the gradual and continuous replacement of one community by another community over a long period of time.

Primary succession is the succession that is starting for the very first time, where there is no life that existed before. It usually started from a bare area. Examples of primary succession include Igneous rock, Glaciers, etc.

It is associated with the occurrence of new sprouted life forms arising in a given area. This activity requires more than 100 years when there is a sufficient amount of rainfall and temperature is there.

Therefore, Primary succession takes more than 100 years to occupy with medium amounts of rainfall and temperature.

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Answer:

Calm down but i gotchu hope it works

Explanation:

This is the periodic table and it shows both the meatl and non metals in the periodic table also their atomic number and mass

Answer:

The table shows metals and non-metals

Explanation:

The yellow means metal and blue is non-metal. It also shows you where the atomic number and the mass number are on each element.

Answer:

2

Explanation:

Because

Spongin does not belong to the same organism as the other three traits. Parapod, chaetae, and proboscis are all features commonly found in various organisms, while spongin is specific to a particular group. Here option D is the correct answer.

Parapod refers to a pair of fleshy appendages found in certain annelid worms, such as polychaetes. These structures aid in locomotion and respiration, providing a wide surface area for movement and gas exchange.

Chaetae, also known as setae, are bristle-like structures found in many invertebrates, including annelid worms. They serve multiple functions, such as providing traction for movement, defense, and sensory perception.

Proboscis is a long, tubular structure found in various animals, including insects, mollusks, and some mammals. It is often used for feeding, sucking liquids, or probing for food sources. Examples include the proboscis of a butterfly or the trunk of an elephant.

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Complete question:

Which of the following traits does NOT belong to the same organism?

A) Parapod

B) Chaetae

C) Proboscis

D) Spongin

Answer:

The movement of Xylem is unidirectional and phloem is bidirectional

Explanation:

The tension created by transpiration “pulls” water in the plant xylem, drawing the water upward in much the same way that you draw water upward when you suck on a straw.

Phloem transport is bidirectional because sucrose gets accumulated in the phloem tissue and absorbs water creating a high turgor pressure. ... Hence the water flows from regions of high turgor pressure to low turgor pressure and the direction can be upwards or downwards from the leaves based on the gradient.

Answer:

C. protease

Explanation: