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.
This is the repeating structural unit that forms RNA and DNA
Answer:
Nucleotide(s)
Explanation:
Both DNA and RNA are made of long chains of nucleotides. In DNA, there is adenine, cytosine, guanine, and thymine. In RNA, there is adenine, cytosine, guanine, and uracil.
What was the most common form of sea life found in Oklahoma? dolomite trilobite bryozoans apatosaurus
Answer:
The correct answer is: trilobite.
Explanation:
Trilobites were the most common form of early sea life found in Oklahoma. Trilobites were arthropods that are now extinct. This marine species is thought to have lived during the early Cambrian period and they existed for almost 300 million years, before disappearing at the end of the Permian in the Permian-Triassic extinction event.
Dolomite is a sedimentary carbonate rock that is rich in calcium.
Bryozoans are a species of seaweed-like aquatic invertebrate animals that have lived since the early Ordovician period.
The Apatosaurus was a herbivore dinosaur that lived in North America during the Jurassic period. They had very long necks and were related to the Brontosaurus.
What was the first element that developed in the universe after the Big Bang?
Explain why.
Answer:
Hydrogen
Explanation:
hydrogen couldn't form until the universe had cooled enough to allow their nuclei to capture electrons, about 380,000 years after the Big Bang, Within about 3 minutes after the Big Bang, conditions cooled enough for these protons and neutrons to form hydrogen nuclei.
How can I solve -10(-5)+3 someone give me an example:)
Answer:
the answer is 53
Explanation:
step 1: Multiply -10 and -5 together that will give you 50.
( it is positive because whenever you multiply or divide 2 negatives together it becomes a positive.)
Step 2: Then add the +3 to the 50
Step 3: final answer equals 53.
Answer:
53
Explanation:
−10(−5)+3
Multiply −10 and −5 to get 50.
50+3
Add 50 and 3
53
What limits most cells to a very small size?
Why do mosquito bites itch?
Carbohydrates are an important type of _ compound.
A) organic
B) lipids
D) protein
How do decomposers obtain their food?
A. hunting and killing prey for food
B. changing carbon dioxide and water
into food
C. absorbing food from dead organisms
D. producing food from oxygen and
sunlight
Answer:
C. absorbing food from dead organisms
Explanation:
When magma cools beneath the surface of the earth, it forms
a. granite
b. basalt
c. shale
Answer:
When magma cools beneath the Earth's surface, it forms granite.
Explanation:
Basalt is formed at the surface where magma comes in contact with cool air above the Earth's surface, while shale is formed when mud is compressed.
Describe the functions of proteins in cell membrane.
Answer:
Membrane proteins can function as enzymes to speed up chemical reactions, act as receptors for specific molecules, or transport materials across the cell membrane. Carbohydrates, or sugars, are sometimes found attached to proteins or lipids on the outside of a cell membrane.
If 30% of the nucleotides in a single-stranded RNA molecule are adenine, then what percent are expected to be thymine?
Answer:
Explanation:
the base pair of adenine is thymine they are equal in amount in RNA so if 30% of the nucleotide in RNA is adenine so the percentage of thymine would also be equal to adenine that is 30%
If the DNA strand has 30% Adenine in its composition, it means that the same DNA strand has 30% thymine in its composition.
This is because:
DNA is composed of the nitrogenous bases Adenine, Thymine, Cytosine and Guanine.These nitrogenous bases were paired with each other.Adenine pairs with Thymina. While Cytosine pairs with Guanine.Therefore, the amount of Adenine and Thymine in a DNA must be equal. While the amount of Guanine and Cytosine must be equal.In this case, we can conclude that if the DNA has 30% of Adenine, it is mandatory that this same DNA has 30% of Thymine.
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Do protists (amoeba, Euglena, Paramecium) use similar structures to move? Explain.
Answer:
Most protists move with the help of flagella, pseudopods, or cilia. Some protists, like the one-celled amoeba and paramecium, feed on other organisms. Others, such as the one-celled euglena or the many-celled algae, make their food by photosynthesis. ... Theyuse pseudopods to move away from bright light or to trap food.
Within the protist kingdom, organisms have developed very similar structures that are used to move around the environment.
The protist kingdom is primarily comprised of very small, single-celled organisms. Among the vast number of organisms that make up this kingdom are algae and amoebas. Over the course of history, these organisms have evolved very similar means of mobility.
Within the protist kingdom, most of the organisms move with one of the structures:
CiliaPseudopodiaFlagellaThese three structures used by protist to move are very similar in that are all structural extensions on the exterior limit of a cell. Though clear differences exist in the number or other uses of these extensions, it is clear that all of the members of this kingdom have evolved similar means of mobility.
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First one to answer gets BRAINLEIST! :D
Answer:
B and D
Explanation:
Your mother and your grandmother were right when they said to eat your carrots for healthy eyes. Beta carotene, a carotenoid found in carrots, is a molecule that the body easily changes into vitamin A. In which group of organic molecules do carotenoids belong?
Answer:
tetraterpenoids
Explanation:
Carotenoids belong to the category of tetraterpenoids. They contain 40 carbon atoms, being built from four terpene units each containing 10 carbon atoms.
Identify the living and non-living parts of the nitrogen cycle.
The nitrogen cycle is a cyclical process in which nitrogen moves through both living and non-living things, including the atmosphere, soil, water, plants, animals, and bacteria.
What is nitrogen cycle?The Nitrogen Cycle is a biogeochemical process in which nitrogen is converted into various forms before passing from the atmosphere to the soil to the organism and back into the atmosphere.
Nitrogen fixation, nitrification, denitrification, decay, and putrefaction are some of the processes involved.
Nitrogen fixation, nitrification, and denitrification are the three major steps in the nitrogen cycle.
It is a biosphere cycle that includes the atmosphere, hydrosphere, and lithosphere. Nitrogen can be found in a variety of reservoirs.
The nitrogen cycle is a cyclical methodology in which nitrogen moves through both living and nonliving systems such as the atmosphere, soil, water, plants, animals, as well as bacteria.
Thus, these are some living and non-living parts of nitrogen cycle.
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1.)_____ is an accepted explanation of an observed phenomenon supported by empirical data. Is it THEORY OR LAW?
Answer: Law
Explanation: I just did this test
When were the first pictures of the Milky Way taken?
Feedback the late 1800’s
the mid 1900’s
the late 1800’s
the early 1900’s
the early 1800’s
Answer:
the mid 1900’s
Explanation:
Milky Way is a galaxy that consists of our planet and the solar system and the first picture of the galaxy was taken from the Hubble space telescope in a black and white format and occurred on May 20, 1990. It appears to be a vague snowman as the picture was taken from a planetary camera.Answer:
the late 1800's
Explanation:
i got it right on my test :)
what acid fermentation regenerates NAD+ with lactic acid
Answer:
actic acid fermentation
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?
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 environmentAnswer:
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.Write function of animal tissue. Don't answer if you don't know
Answer:
Animals tissues are grouped into four basic types: connective, muscle, nervous, and epithelial. ... It serves functions of protection, secretion, and absorption, and is separated from other tissues below by a basal lamina.
Answer:
In animals there are four types of tissues. Their functions are::
1. Epithelial tissue: covers body surfaces ,line the body cavities ducts and glands.
2. Connective tissue: support the body and binds body organ together and stores the fat.
3. Muscular tissue: contraction and movement
4. Nervous tissue: transmit nerve impulse that coordinate body activities.
What is formed by a group of cells and tissues that work together to carry oul a specific function? O cell O tissue O organ O organ system
Answer:
The answer is C: Organ
Explanation:
A single organ is made of tissue, which carries out a specific function, multiple organs carrying out multiple functions make them an organ system.
Organs are what is formed by a group of cells and tissues that work together to carry out a specific function.
LEVEL OF ORGANIZATION:
The level of organization of life describes the hierarchical pattern of life. Cell is the basic and fundamental unit of life, hence, the simplest. Cells form tissues, tissues form organs, organs form organ systems and systems form organisms.According to this question, a group of cells and tissues that work together to carry out a specific function is called organ.Learn more at: https://brainly.com/question/905358?referrer=searchResults
ANSWER QUICK PLEASE !!!
Explain how a greenhouse stays warmer than its outside.
Answer:
Greenhouses stay warm because only some kinds of radiation penetrate their surfaces, which are glass and/or plastic. Solar radiation passes freely through clear substances such as greenhouses' glass and plastic, and it heats soil, stone, plants and anything else inside the greenhouses.
Plsss helppp 200 points extra
Answer:
fother Aa
mather aa
Explanation:
the top are not AA so that means the father is Aa because the ones below are aa
Answer:
father Aa
mother aa
Explanation:
The top are not AA so that means the father is Aa because the ones below are aa.
The _____________ model is a model proposed by Nicholaus Copernicus, a Polish cleric, around 1500. His model proposed that all the planets revolve around the Sun and the moon revolves around Earth
which protein is used to break food down and give?
protein digestion begins when you first start chewing. there are two enzymes in your salvia called amylase and lipase. they most break down carbohydrates and fats. Once a protein source reaches your stomach, hydrochloric acid enzymes called proteases break it down into smaller chains of amino acids
A rock falling through Earth's atmosphere from outer space is called a
Explanation:
A rock falling through Earth's atmosphere from outer space is called a asteroid
Which statement below would be most likely to effect the carbon cycle if a tornado lands and destroys most of the trees in a forest?
A. There would be less fossil fuels in the ground that would be used for drilling
B. Plants would remove less carbon dioxide from the atmosphere
C. An increase in organisms respiration would raise the level of carbon dioxide in the air
D. More resources would be available for animals in the area
Answer:
B
Explanation:
The effect of the carbon cycle if a tornado lands and destroys most of the trees in a forest is Plants would remove less carbon dioxide from the atmosphere.
What impact does the carbon cycle have on land?The important changes in the land carbon cycle are likely to come because of climate change. Carbon dioxide rises temperatures, extending the growing season and increasing humidity. Both factors have led to some additional plant growth. However, warmer temperatures also stress plants.Thus, option "B" is correct.
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please answer as many as possible
Answer:
in second assignment 1 - b
Explanation:
what makes jupiter similar to the sun
Answer:
Their composition is similar.
Explanation:
They are mostly made of hydrogen and helium.
The structure of jupiter and sun mostly made up of hydrogen and helium.
What are the characteristics of hydrogen and helium?Hydrogen and helium are the lightest elements in the periodic table. They exist as gases at room temperature and are the two most common elements in the universe, with hydrogen making up about 75% of all matter.
It will form a mixture of two of the lightest gases known. Though Hydrogen atoms (H) turn into hydrogen molecules (H2) to form a very reactive, flammable, and explosive hydrogen gas, Helium (He) atoms form an inert gas.
The key difference between hydrogen and helium is that hydrogen is a diatomic gas, while helium is a monatomic gas. Helium has a fully filled s orbital (1s2), but in hydrogen, there is only one electron, so it is unstable.
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Which of the following is an example of a detritus food chain?
A. Graas, Insects, Snakes.
B. Plankton, Large fish, small fish.
C. Organic matter, Bacteria, Molluscs.
D. All of the above.
Explanation:
Detritus food chain is the type of food chain that starts with dead organic materials. The dead organic substances are decomposed by microorganisms. The organisms that feed on dead organic matter or detritus, are known as detritivores or decomposers. These detritivores are later eaten by predators.