Answer:
A primitive whale which he named Pakicetus.
Explanation:
Philip Gingrich is a vertebrate paleontologist at the University of Michigan. He has performed extensive research on whales at the Egyptian desert of Wadi Hitan. His research team member discovered a skull whose braincase was bigger than that of a walnut. Gingerich was able to link the small-brained animal, to an early whale.
The auditory bulla had an s-shaped bony crest known as the sigmoid process and these two features helped whales to hear in water. The case, however lacked other features that helped whales hear beneath the waves. This led Gingrich to the conclusion that the unknown animal was semi-aquatic. This finding also lent credence to the possibility of whales evolving from terrestrial animals.
What is Earth's position in the solar system?
Closest planet to the sun
Third planet from the sun
Seventh planet from the sun
O Farthest planet from the sun
Is malachite made of just copper?
Answer:
No
Explanation:
Cu2(CO3)(OH)2 - there are other elements present other than just copper
Order of steps to describe the replication of DNA in a cell
Answer:
basically, step 1 is the second row
step 2 is 3rd row
step 3 is 4th row
and step 4 is the 1st row
Explanation:
pls help how do i compare the aspect of an autograft to that of an allograft
Answer:
The correct answer is - A patient's own tissue - an autograft and tissue from another person - an Allograft.
Explanation:
If the bone or the tissue is transferred from one point of the body to another point of the same person's body, this is called an autograft and is also thought of as "gold standard". It has a low level of risk in comparison to other grafts. It is used for surgical reconstruction.
An allograft is the transfer of the tissues or bone of an individual to the body of another individual of the same species during the surgical process. This type of graft has some risk of compatiblity.
plz help! What is the specific function of signal cells releasing chemical messages to nearby cells during early embryonic development?
The chemical messages will impact the cells, resulting in change to gene expression.
The chemical messages will facilitate the transfer of mRNA.
The signaling cells will initiate programmed cell death in nearby cells.
The signaling cells will prevent DNA mutation in nearby cells.
Answer: the chemical messages will impact the cells resulting in change to gene expression
Explanation:
The specific function of signal cells releasing chemical messages to nearby cells during early embryonic development is the chemical messages will impact the cells, resulting in a change in gene expression. The correct option is A.
What is embryonic development?The growth and formation of the human embryo are known as human embryonic development or human embryogenesis. It is distinguished by early developmental processes in the embryo, such as cell division and cellular differentiation.
The endoderm, mesoderm, and ectoderm are three germ layers that develop throughout this process, known as gastrulation. Different components of the organism will develop from the cells in these three levels.
Therefore, the correct option is A, The chemical messages will impact the cells, resulting in a change in gene expression.
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25POINTS HELP!!!!!!!!!!!!!!!!!!!
Answer:
kj
Explanation:
uhhhhhh i think the answer is 2+-43
• Different types of molecules do
things in a cell
Answer:
I dont get what you are trynna ask so..
Explanation:
here are four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids), and each is an important component of the cell and performs a wide array of functions. Combined, these molecules make up the majority of a cell's mass.
Answer:
Your cells come from other cells dahhh stup!d
Explanation:
jk it's B
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2. Can humans exist if one level of biological organization is absent?
Answer: No because each have an important impact on humans.
Explanation:
Which cellular structure is the site of photosynthesis?
ribosome
chloroplast
nucleus
mitochondria
Answer:
Its b
Explanation:
what does hypothesize mean
Answer:
to suggest (an idea or theory): to make or suggest (a hypothesis)
Explanation:
hope this helps have a good of your day :) ❤
How is a sanitary landfill different from a dump?
Answer:
D. It has a clay liner unlike a normal dump
Caam
Which is true of the material that
makes up wires?
A. Wires made of conductors have high
resistance.
B. Wires made of conductors have greater
resistance.
C. Wires made of conductors have low
resistance.
Wires made of conductors have low resistance. The correct option is C.
What is a conductor?Conductors are materials that allow the flow of through them. Insulators are those materials that prevent electricity from passing through them.
Copper, aluminum, gold, and silver are a few examples of common conductors. Wood, rubber, plastic, and glass are a few typical insulators.
A conductor is an object or kind of material that permits the movement of charge (electric current) in one or more directions.
This term is used in both physics and electrical engineering. Metal-based materials are frequently used as electrical conductors.
Low resistance to the flow of electricity is provided by good conductors like copper, aluminum, etc. They do so because they have a lot of free electrons.
There are no free electrons in insulators. As a result, despite applying voltage across them, essentially no electric current flows through them.
Thus, the correct option is C.
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What is the definition of Stabilizing selection, directional selection and disruptive selection (make your sentence short and in your OWN words)
Answer:
Stabilizing selection is a type of natural selection in which the population mean stabilizes on a particular non-extreme trait value.
directional selection is a mode of natural selection is an extreme phenotype is favored over other phenotypes.
Disruptive selection describes changes in population genetics in which extreme values for a trait are favored over intermediate values.
Isaac is studying relationships between organisms in the phylum Chordata, which includes humans and all other animals with a backbone. Beginning with domain as 1 and then counting down the levels in the modern system of classification, what level is "phylum”?
2
3
4
5
Answer: Phylum is at level 2.
All living organisms are classified, and the reasons for this are so that they can be examined better, to know and discover their relations, their evolutionary paths etc. while in the past there have been some more simplified classifications, the modern one is complex and well established, based on the characteristics of the organisms(living and died out).
Explanation: Kingdom: Animalia(an animal)
Phylum: Chordata (vertebrate)
Class: Mammalia(mammal)
Order: Carnivora(carnivore)
Suborder: Feliformia (also Feloidea) (cat-like)
Family: Felidae(true cat)
Subfamily: pantherine(big cat branch)
Pls give the first person brainiest I'm just doing this for a challenge
Genus:panthera(big cat)
Species:P.uncia(snow leopard)
Answer:
2
Explanation:
If there were 7 cytocine (C) bases, how many guanine bases will there be?
Answer:
7
Explanation:
C pairs with G
Which organelle controls what goes in and out of the cell? *
Mitochondria
Cell Membrane
The organelle that controls what goes in and out of the cell is the cell membrane, which is present in the second option. The cell membrane is the outer protective layer of the cell that does this function.
What is the role of the cell membrane?The cell membrane is the membrane that acts as the selective barrier for the cell, and through it, substances can enter and exit the cell. When energy is spent for the molecule to move, it is referred to as active transport; when it is not spent, it is referred to as passive transport.
Both eukaryotes and prokaryotes, as well as fungi, have different cell membrane compositions; some have more lipid content, some have less, some have cholesterol, and some don't. The lipids and proteins are arranged in such a way as to maintain cell homeostasis.
Hence, the organelle that controls what goes in and out of the cell is the cell membrane, which is present in the second option.
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Which is an example of how the peripheral nervous system helps the body maintain
O Muscles produce keratin so that hair can grow stronger.
O Sweat glands break down the food that is consumed.
O Muscles contract rapidly to produce heat on a cold day.
O The brain recalls information to help take a test.
Answer:
C. Muscles contract rapidly to produce heat on a cold day.
Explanation:
CORRECT
Answer:
O Muscles contract rapidly to produce heat on a cold day.
Explanation:
Hope this helps
Which of the following describes the responsibility of the lymphatic system?
to exchange gases
to provide structure
to protect against illness
to process information
Black coat is dominant over white coat in guinea pigs. A homo-zygous black pig is mated with another homo-zygous black pig.
What are the genotypes of the parents?
Question 5 options:
bb and bb
BB and bb
Bb and Bb
BB and BB
Answer:
BB and BB
Explanation:
BB is a homo-zygous allele and both of the parent guinea pigs are homo-zygous.
A black coat is dominant over a white coat in guinea pigs. The genotypes of the parents are BB and BB. The correct option is d.
What is a genotype?The terms genotype and phenotype relate to the individual's alleles and the observable traits that are generated from the genotype and determined by the dominance of the alleles, respectively.
For black coat = B
For White coat = b
A homozygous black pig is mated with another homozygous black pig. Homozygous means only one character will be shown in the genotype, that is the dominant and the dominant trait is black, B so, the genotype will be BB and BB. Recessive traits are hidden that do not show, and that is also black.
Therefore, the correct option is d. BB and BB.
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Which of the following is NOT a characteristic of protozoans
a. break down plant matter
b. can cause a disease
c.can live in red blood cells
d. Ingredient in lotion
its a science question
Answer:D
Explanation: Protozoans are a single-celled microscopic animal of a group of phyla of the kingdom Protista, such as an amoeba, flagellate, ciliate, or sporozoan.
Protozoans play important roles in the fertility of soils. By grazing on soil bacteria, they regulate bacterial populations and maintain them in a state of physiological youth— in the active growing phase. This enhances the rates at which bacteria decompose dead organic matter.
Can you guys please help me with this question?❤️
Answer:
With less oxygen, the abnormal hemoglobin S gene can cause rigid, nonliquid protein strands to form within the red blood cell. These rigid strands can change the shape of the cell, causing the sickled red blood cell that gives the disease its name.
Answer:
B. Inheriting a specific gene
Explanation:
Sickle cell anemia is a genetic disorder whose gene likely originated in places where illnesses like malaria are common; the sickle cells help prevent people from getting sickened as bad in that case.
Have a good day!
what kingdom always lives in water
Answer:
plantae kingdom
Explanation:
plantae kingdom which consists of trees, bushes, vines, flowering plants, ferns and moss among other living organisms. Many plants are aqueous, meaning that they survive and thrive in water whether it be fresh or salt water.
PLZ MARK BRAINLIEST! :)
Answer:
plantae kingdom
Explanation:
Scientists compare the structures of a chicken embryo and a human embryo at the same stage of development. They find that both vertebrates have similar shapes and structures, including the presence of gill slits and tails. How is this comparison of the embryos used as supporting evidence of evolution?
Answer:c
Explanation:
c
Embryology is used in evolution because similar structures often also exhibit a common evolutionary origin.
Embryology refers to the discipline that studies the early development of an organism.Evolution is a biological process associated with descendence with modification, thereby evolutionary close organisms share similar features.Embryology often evidences evolutionary relationships due to the resemblance between structures found in different organisms.In conclusion, embryology is used in evolution because similar structures often also exhibit a common evolutionary origin.
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6. The milk snake and the coral snake both have red, yellow, and black alternating stripes. In the milk snake, black
stripes separate bands ti red and yellow. In the coral snake, yellow stripes separate black and red bands. The
milk snake is non-venomous, but the coral snake is highly venomous. How are these snakes an example of
coevolution?
The coral snake and the milk snake form a mutualistic symbiosis.
* The coral snake and the milk snake have both evolved to eat the same types of prey.
The coral snake is selectively favored by mimicking the non-venomous milk snake.
The milk snake is selectively favored by mimicking the venomous coral snake.
Answer: D. The milk snake is selectively favored by mimicking the venomous coral snake.
Explanation: Good luck! :D
Answer:
D
Explanation:
can yall please help, have a good day !
Answer:
Claim : Community B is more sustainable.
Evidence: That is because we can observe greenary with more number of small plants
Reasoning : Sustainable means that lasts for a long term right since it has smaller plants and sapplings they take time to grow and lasts for a long time.
Hope it helps
Have a good day too...
All the best!!
lipid production; increases in liver cells as a response to regular alcohol or barbiturate consumption
Answer: Lipid production occurs at slower rate.
Explanation:
The ethanol or ethyl alcohol is a hepatotoxic which involves the redox changes in the NADH that results due to the oxidation of the alcohol dehydrogenase enzyme. It affects the metabolism of the lipids, amino acids, carbohydrates and proteins in the body. As the liver cells get engaged in metabolism of regular alcohol or barbiturate. The liver cells get damaged in this process. The ethanol is metabolized into acetaldehyde. So, the lipid production as a metabolite occurs at a slower rate.
Describe and list the functions of the cerebrospinal fluid.
Answer:
homeostatic protection, mechanical protection, circulation
Explanation:
Homeostatic protection: cerebrospinal fluid transports polypeptide hormones and its PH allows for cerebral blood flow as well as pulmonary ventilation
Mechanical protection: cerebrospinal fluid absorbs shock, so that energy from an impact does not directly first affect the spine
Circulation: helps allow for the exchange of nutrients between the blood and adjacent nervous tissue
What is the name for a full moon that is getting larger getting smaller
Answer:
That's called a Waning Crescent.
Two parent plants are crossed. The phenotypes of 1,000 offspring plants are shown below. What are the most likely genotypes of the parent plants?
A. ANL/ANL, YGR/YGR for parent 1, and anl/anl, ygr/ygr for parent 2.
B. ANL/anl, YGR/ygr for parent 1, and ANL/anl, YGR/ygr for parent 2.
C. ANL/anl, YGR/ygr for parent 1, and anl/anl, ygr/ygr for parent 2.
D. anl/anl, YGR/ygr for parent 1, and anl/anl, YGR/ygr for parent 2.
Answer:
C
Explanation:
The data shows that each phenotype occurs about one-fourth of the time. That means that there are about equal numbers of purple-stemmed and green-stemmed plants, and about equal numbers of green-leaf and yellow-leaf plants. Of the four choices, answer A can be eliminated because all of the offspring of an ANL/ANL plant will have purple stems. Answer D can be eliminated because all of the offspring of two anl/anl parents will have green stems.
DNA is found in every cell of an organisms body.
This is true
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