Every time the planet reinvents itself its inhabitants adapt and evolve. Explain how Ichthyosaurs evolved from land dwelling reptiles. How long did Ichthyosaurs rule the oceans?

Answers

Answer 1

Answer:

Ichthyosaurs lived from Triassic to Middle Cretaceous approximately 250 million years ago until 110 million years ago

Explanation:

Ichthyosaurs evolved during the early Triassic period from land reptiles. This group was characterized by a spindle-shaped body, a shoulder girdle connected to a streamlined skull, two pairs of limbs, and digit-like bones. Moreover, Ichthyosaurs drew oxygen from the atmosphere (i.e., like marine mammals). Utatsusaurus is the oldest known Ichthyosaur species and it lived during the Lower Triassic. ln the same way to the land reptiles, Utatsusaurus had a pelvic girdle attached to the spine, and an equal length between the humerus and femur.


Related Questions

what does selective permeability mean?

Answers

Selective permeability is a property of cellular membranes that only allows certain molecules to enter or exit the cell.

Can you help me with the question listed in the pictures below? Please and thank you. Will mark BRAINLIEST!!! Answer choices Decrease or Increase

Answers

Answer: Decrease

Explanation: Because their foot is being used more.

I think that's what it said.

What are the components of adenosine triphosphate (ATP)?
sugar + three phosphates
adenosine + one phosphate
base + three phosphates
base + sugar + three phosphates

Answers

Answer:

base, sugar and three phosphates

As water moves from the roots up through the stem of a plant adhesion is a property of water that enables this to happens. which characteristic of water causes adhesion? Help

A ) Cohesion

B ) Solvent capabilities

C) ability to change state

D) Hydrogen bonds

Answers

The answer is hydrogen bonding, so D

As water moves from the roots up through the stem of a plant adhesion is a property of water that enables this to happens. The characteristic of water causes adhesion is hydrogen bond. Thus, option D is correct.

What is water?

Water has been defined as the water present in the underground water below the soil as well as in the crack of the earth. The percentage of freshwater in the world would be 30%. There are mainly three types of groundwater and these are known as hand-dug wells, springs, and drilled boreholes.

The water stored under the ground has been obtained from rain and stored in ground so that it can be used later. Ground water has observed very clean and fit for drinking and the reason has been the soil present on top and work as filter and the groundwater is free from all microorganisms.

The use of groundwater is just to wash dishes and cooking utensils in cold, soapy water,Use a disinfectant wash cloth to clean the refrigerator. Rinse and wash contaminated clothing separately.

Therefore, As water moves from the roots up through the stem of a plant adhesion is a property of water that enables this to happens. The characteristic of water causes adhesion is hydrogen bond. Thus, option D is correct.

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What are the reasons for unequal distribution of natural resources?
geological processes
geological structure
geographic location
geographic features

Answers

Answer:

The answer for your question is : geographic location

Answer:

Geological Processes and Geographic Location

explain why a cell a matter? PLZ HELP I WILL MARK YOU BRAINLIST ​

Answers

Answer:

cells are the smallest structural units of living matter and compose all living things.

Explanation:

fact

matter is everything (living and non living)

cell is the basic unit of organism (living)

so cell is part of matter cause matter compose everything int the universe

cells are the basic small and structural units of living matter and composed of organelle mostly made up of biomolecules.

what are the types of cell ?

Cell is the basic structural unit of any living system, present in animal, plant, microbes etc where Bacteria are unicellular in nature as it is composed of single cell, higher eukaryotic organisms are multicellular like plants and animal cell as it is made up of multiple cells.

The prokaryotic cells are simplest cell which have a cell membrane, cytoplasm and other cell organelles where the metabolic processes occur, ribosome is the organelle where protein synthesis occur, and nucleoid carry genetic information, reproduce by binary fission.

The eukaryotic cells are more complex which have cell membranes, cytoplasm, ribosomes, and nucleus, rough endoplasmic reticulum, smooth endoplasmic reticulum for lipids, Golgi apparatus for protein sorting and exporting.

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A typical steer weighs about 1100 pounds and can be processed into approximately how many pounds of edible meat by a seasoned butcher ?

Answers

Answer:

The correct answer is - 430 - 450 pounds.

Explanation:

A seasoned butcher can process a steer into edible meat. A typical steer can weigh in between 1100 pounds to 1300 pounds.

This alongside the fat and bone eliminated during the cutting record for an extra 18% misfortune. In synopsis, a cow weighing 1,000 pounds on the foot will average around 430 pounds of retail cuts (steaks, ground meat, cooks, stew hamburger, and so on.)

Thus, the correct answer is - 430 - 450 pounds.

A ____ is the basic unit of structure and function of living things.​

Answers

Answer:

Cell

Explanation:

A cell is the basic unit of structure

Answer:

Cell

Explanation:

The answer is a cell. Cells are the building blocks of the living.

Which type of muscle tissue is both voluntary and striated? O smooth o cardiac skeletal heart​

Answers

Answer:

Skeletal muscle fibers occur in muscles which are attached to the skeleton. They are striated in appearance and are under voluntary control.

Explanation:

The type of muscle tissue that is both voluntary and striated is the skeletal muscle.

What is a skeletal muscle?

The skeletal muscle is the type of muscle that makes up about 40% of the total human body mass.They perform the following functions:

They are attached to the bones and allows movements,

They help to maintain posture

They generate heat.

These functions are possible because of the features of the skeletal muscle which is that they posses striations and they are voluntary.

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Can you help me with the question listed in the pictures below? Please and thank you. Will mark BRAINLIEST!!!

Answers

Answer:

to always spend wisely because sometimes if you go all out and spend it you won't have enough to get what you really need

Answer:

how to pay taxes and pay your bills and how to invest wisely and not blow your earnings

Explanation:

Why do mosquito bites itch?

Answers

Their saliva contains an anticoagulant and proteins. The proteins are foregin substances that triggers the body’s immune system. To fight them the body’s immune system releases histamine, a compound that helps white blood cells get to the affected area. Histamine is what causes the itchiness, inflammation, and swelling.

What atom exists in all macromolecules

Answers

carbon, the fundamental component for all the macromolecules.

which should not be part of scientific inquiry bias,hypothesis,analysis,testing

Answers

Answer:

Bias

Explanation:

Bias is when your belief or someone elses gets in the way of having fair and equitable results. Bias should not be part of any scientific experiment, as it degrades the project. In most cases, bias is bad.

Match each scientist to the observation she is most likely to make

Answers

The first one is hydrologist
The second one is meteorologist
The third one is geologist
The fourth one is astronomer

A carbohydrate found in bread and pasta:

Answers

If you’re trying to figure out if it’s true or false it’s true

Answer:

yes

Explanation:

yes they are found in bread and pasta

what information can be determined about using half-life?

Answers

Answer:

The half-life of an isotope is used to describe the rate at which the isotope will decay and give off radiation.

Explanation:

how does the concentration of electrolytes in and outside a cell control the movement of water

Answers

Answer:

Maintaining an isotonic environment for the cell ensures that the cell does not shrink or swell due to water.

Explanation:

If the cell was in a hypotonic solution, water would rush in the cell causing it to burst, and if it was in a hypertonic solution it would cause water to move out of the cell, causing the cell to shrivel. It is important that the cell is always in a solution with an almost equal electrolyte solution inside the cell

What do ribosomes do?

Answers

Macro molecular machines that Perform biological synthesis

Brainliest?

How will you explain to a preschooler on how the universe started?

Answers

Eat a Big Mac on a Tuesday afternoon

Answer:

With difficulty.

Explanation:

Once upon the time, everything was in a tiny spot. Then, that tiny spot decided it was tired of being tiny. It started growing, and growing, and growing. There was lots of hot gas, which became our sun eventually. The suns made some planets to keep them company, and everything's just like now.

insulin is a polymer of a)fructose b)glucose c)mannose d)ribose

Answers

Answer:

fructose

Explanation:

a)fructose is the correct answer

Answer:

a) fructose

Explanation:

Several factors affect an organisms ability to fossilize. The unlikelihood of fossilization results in large gaps in the fossil record. Which would decrease the likelihood that an organism fossilizes?

Answers

Complete question:

Several factors affect an organism´s ability to fossilize.  The unlikelihood of fossilization results in large gaps in the fossil record.  Which of the following would decrease the likelihood that an organism fossilizes?

The organism lower on the food chainThe organism higher on the food chainThe organism with a hard body rather than a soft bodyThe organism that lived in a marine or aquatic environment

Answer:

The organism higher on the food chain

Explanation:

The organism lower on the food chain. Their high reproduction rate, as well as their numerous populations, favor them at the moment of fossilizing under different environmental conditions.  The organism higher on the food chain. These organisms tend to be predators or bigger animals, characterized by small populations with a reduced number of individuals in comparison with smaller organisms. The fact that their reproductive rate is not very high, that they live longer and hence they are fewer in number, do not favor their fossilizing possibilities under different environmental conditions.The organism with a hard body rather than a soft body. Hard tissues always increase the possibilities of fossilizing, as their biological or mechanical destruction is not as easy as the destruction of the soft tissues.  The organism that lived in a marine or aquatic environment. It seems that those organisms that live in a sedimentary environment, such as the sea or a lake, or those that live buried or fixed to the bottom, have more possibilities of fossilizing.

what are the SI units of measurement (in science)

Answers

Answer:

The units and their physical quantities are the second for time, the metre for measurement of length, the kilogram for mass, the ampere for electric current, the kelvin for temperature, the mole for amount of substance, and the candela for luminous intensity.

Answer:

in 1960 ad an international convention of metrologist suggested a same unit all over world called Si unit

Can you help me with the question listed in the pictures below? Please and thank you. Will mark BRAINLIEST!!!

Answers

Living your best life is honestly up to your own interpretation.

Living your best life is what YOU think is best for yourself.

Here’s what I think it means:

Living your best life means living a life where there are no boundaries and you are free to do what you want. Doing what I want in the future will make me happy. Happiness will give me my best life.

Is astrology an example of science or pseudoscience? Explain your answer.​

Answers

Answer:

Pseudoscience

Explanation:

Astrology provides a quintessential example of a pseudoscience since it has been tested repeatedly and failed all the tests and it has not demonstrated its effectiveness in controlled studies and it has no scientific validity.

Which of the following describes the products of meiosis?

Answers

Answer:

Sry JK

Answer: In contrast to a mitotic division, which yields two identical diploid daughter cells, the end result of meiosis is haploid daughter cells with chromosomal combinations different from those originally present in the parent. In sperm cells, four haploid gametes are produced.

The product of meiosis is four haploid daughter cells with genetically different as compared to their parents.

What is Meiosis?

Meiosis may be defined as the type of cell division in which a parent cell is able to synthesize four daughter cells that are haploid in nature. These daughter cells are genetically dissimilar with respect to their parents. It is also known as reductional division.

The process of meiosis generally occurs in the germ cells (sex cells) of males and females. The division of cells occurs twice in meiosis. Meiosis is generally completed in two steps that are as follows:

Meiosis IMeiosis II.

These steps are further divided into Prophase, Metaphase, Anaphase, and Telophase. Overall, it significantly determines the nature as well as the characteristics of a cell

Therefore, the product of meiosis is four haploid daughter cells with genetically different as compared to their parents.

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The question seems incomplete. Your complete may be as follows:

Which of the following describes the products of meiosis?

2 genetically identical daughter cells.4 genetically identical daughter cells.2 genetically non-identical daughter cells.4 genetically non-identical daughter cells.

Which of these is a scientific hypothesis about the growth of a plant? A Plants make a pretty decoration in the house. B It's fun to watch this plant grow. C Plants grow best when they are happy. D This plant will grow best in sunlight.

Answers

Answer:

D. Plants grow best in sunlight.

Explanation:

The other answers can't be scientifically proven, therefore they would not make a good hypothesis. A hypothesis is a statement that can be tested and verified.

Plant will grow best in sunlight. So, the correct option is (D).

What is the scientific hypothesis about the growth of a plant?

According to the evolution-immunity hypothesis in ecology, fast-growing plant species should suffer more from herbivores and pathogens than slow-growing species. Tests of this hypothesis have focused on above ground plant tissues, herbivores and pathogens. This should also apply to route defense.

When the amount of fertilizer applied to the plants is increased, the growth which is the height of the plant increases. As the amount of fertilizer increases, plant growth increases.

Plant growth shall be considered as an increase in plant volume and/or mass with or without the formation of new structures such as organs, tissues, cells or cell organelles that grow in the presence of sunlight.

Thus, plant will grow best in sunlight. So, the correct option is (D).

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What are the 8 Essential Life Functions?​

Answers

Answer:

Repiration, Regulation,Reproduction,Excretion,Growth,Nutrition,Transport,

Explanation:

Can any kind soul help me ASAP ​

Answers

11. D

12. C

13.

14.

15.

thats all I know, hope it helped

What are the Characteristics of a good hypothesis

Answers

Should be formatted as “IF I change *independent variable* THEN *what you think will happen and WHY*

Some types of aquatic frogs bury themselves in the mud and spend the winter hibernating at the bottom of lakes and ponds. Which characteristic of life does this behavior represent?

Answers

Answer:

defence

Explanation:

they try to save their territorythey bury them in mud to camoufalge
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