As the world changes, plants and animals change with it. Aside from a few living fossils, the species we see today are very different from species that lived in the past.
What is the minimum age of a fossil?A living being that lived more than 11 thousand years ago is considered a fossil, that is, before the Holocene, which is the current geological epoch.
Ancient remains or evidence, but less than 11,000 years old, such as sambaquis, are classified as subfossils.
The dating of a fossil can be done based on the already known percentage of Carbon-14 (C14) in relation to Carbon-12 (C12) of living matter (without decomposition).
Thus, the fossil record can be used to show that organisms changed to meet new conditions.
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witch best describs the theroy of evlotion
Charles Darwin’s theory of evolution states that evolution occurs by natural selection. Individuals in a species shows variation in physical characteristics. This variation is because of the differences in their genes.
What is evolution?Evolution is the process by which species adapt over time in response to their changing environment.
Individuals with characteristics best match to their environment are more likely to survive, finding food, avoiding predators and resisting disease. These individuals are more likely to reproduce and pass their genes on to their children.
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50 points! Pls help asap! Chapter 28 concept mapping introduction to animals
Numbered for easy answering
Some animal features include multicellularity, motility, heterotrophy, a se_xual mode of reproduction, etc.
What are animal features?The expression 'animal features' makes reference to the phenotypic and genotypic characteristics shared by organisms from the Animalia kingdom.
Heterotrophy refers to the fact that animals are unable to synthesize their own food and must eat other organisms to survive.
In conclusion, some animal features include multicellularity, motility, heterotrophy, a se_xual mode of reproduction, etc.
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Which of the following is a strategy for controlling water pollution?
A: Using more salt on roads during snow and ice storms
B: Reducing natural wetlands by filling them in
C: Discharging hazardous chemicals directly into rivers
D: Identifying storm drains and placing signs on them to remind people not to dump chemicals in them
Answer:
D: Identifying storm drains and placing signs on them to remind people not to dump chemicals in them
Explanation:
Water pollution is the contamination of water either consciously or unconsciously.
From the options, the correct answer is Option D.
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[tex] \sf \red{Which \: of \: the \: following \: is \: a \: strategy \: for \: controlling \: water \: pollution?}[/tex]
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Since, mainly water pollution is caused by the waste chemicals that come out from factory. So, we should discharge factories that they shouldn't directly pass the chemical into rivers.
[tex]\pink\star[/tex]C: Discharging hazardous chemicals directly into rivers. So option (C) is correct.
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If you examined the cells of a pigs snout under a microscope, you would see a firm ground substance with tiny cells called
Answer:
lacuna
Explanation:
cartilage connective tissue has lacuna
The tissue characteristically has spaces or chambers called lacuna (lacunae, pl.)
http://faculty.gordonstate.edu
What are the two features that result from deposition of groundwater?
P.S please make it simple thx
Answer:
minerals may then be deposited, for example, as stalagmites or stalactites
The water dissolves and carries away the solid rock gradually enlarging the cracks, eventually forming a cave. Ground water carries the dissolved minerals in solution.
Explanation:
Ground water is a strong erosional force, as it works to dissolve away solid rock. Carbonic acid is especially good at dissolving the rock limestone. Working slowly over many years, ground water travels along small cracks.
what is dendritic cells and difference between dendritic cells and glial cell
Answer:
here--->
Explanation:
Dendritic cells (DC) are the professional antigen-presenting cells of the immune system. In their quiescent and mature form, the presentation of self-antigens by DC leads to tolerance; whereas, antigen presentation by mature DC, after stimulation by pathogen-associated molecular patterns, leads to the onset of antigen-specific immunity. DC has been found in many of the major organs in mammals (e.g. skin, heart, lungs, intestines, and spleen), while the brain has long been considered devoid of DC in the absence of neuroinflammation. Consequently, microglia, the resident immune cell of the brain, has been charged with many functional attributes commonly ascribed to DC.
1. How is a food chain different from a food pyramid?
Answer:
What are some differences between a food chain, web, or energy pyramid? Food chains show a limited feeding relationship between only a few organisms. Energy pyramid is the visual representation of the amount of energy, population, or biomass at each trophic level.
Answer:
A food chain represents the linear relationship between organisms for food. On the other hand, a food pyramid represents the optimal number of servings to be eaten each day from each of the basic food groups
Explanation:
Sensory _____________ respond to stimuli by sending messages to the brain A. Nerve cells, or __________ , are the basic units of the nervous system
Answer:
Sensory _____________ respond to stimuli by sending messages to the brain A.
Organs
Nerve cells, or __________ , are the basic units of the nervous system.
Neurons
difference between homologous and analogous organs
Hi!Homologous structures share an identical embryonic origin; analogous organs have an identical function.
Answer:
Hope these two pics help, I actually don't know what that is, but I think I do now, I got this from the internet, hope this helps
how long does it take a guienne fowl to grow up?
Answer:
eight to eight and a half months
Which types muscles are controlled by the autonomic nervous system?
Answer:
Smooth Muscle
Explanation:
They are under the control of the autonomixlc nervous system , and contraction or relaxation of the muscle cells. in which case control of the blood pressure, motility of the digestive, respiratory and urinary tracts and secretion.
what is the correct way to write the scientific name of the mustard ? pls help me to solve this problems.
Answer:
Sinapis alba. (Yellow mustard)
The scientific name of yellow mustard is Sinapsis alba and that of Indian mustard is Brassica juncea.
What is the scientific name?The scientific name is the name that is accepted internationally as the name of the organism.
What is the need of a scientific name?An organism in different part of the world is known by different names therefore it creates a confusion.Hence a common name is accepted universally as the scientific name of that organism.What is binomial nomenclature?It is a system of naming species by giving them two parts.One is known as the generic name and the other is known as the species name.What are the rules to write a scientific name?The generic name should begin with the capital letter while the species name begins with the small letter.The names are always written in italics.The species name is never capitalized.To learn more about scientific name, generic name and species name here,
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Fossil evidence shows that toothed leaves were present in Bighorn basin during the
Paleocene and Eocene, but not during the PETM. Which of the following explains the
changes in the fossils over this time?
Answer:
Did anybody answer this question? I'm taking the biology exam and I need help with this question.
Explanation:
What is the economic importance of Taenia sp?
Answer:
Taenia saginata and Taenia solium are the two taeniids of greatest economic and medical importance, causing bovine and porcine cysticercosis and taeniasis in humans. In addition, T. solium eggs can infect humans, often giving rise to fatal neurocysticercosis (12, 39).
Explanation:
1-3. How is
this related to
evolution?
Answer:
-2
Explanation:
If it's a math question this is it.
helpp meee 20 points or else i will fail
explain why you seem to lose your sense of taste when you have a cold
Answer:
viral or bacterial infection will take place in your system and usually block your odor detection center where you will basically lose sense of taste and smell temporarily.
Hope this helps!
3During menstruation, the body sheds
Answer:
due to less proteins in a body
Answer:
During menstruation, the lining of the uterus (endometrium) is shed
In which location is glucose formed?
O Location A
O Location B
O Location C
O Location D
Answer:
B is the answer
Explanation:
If you see the white parts
Pls help, I don't know the answer! Leave out the : and % sign.
Given,
H = brown hair
h = red hair
Mother: Hh (heterozygous It’s given)
Father: hh (homozygous, given)
What is homogeneous and heterogeneous?Homozygous means alike allele whereas heterozygous means unalike or distinct from one another.
So, in the punnet square below, it is shown that there is a 50/50 chance for the offspring to have red hair.
Ratio is 1:1.
But there is also another probability for the offspring to be like their mother, have the dominant gene of black hair overruling the recessive gene of red hair.
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Putting your coat on when it is cold outside is a behavior that is maintained by:
O Negative Reinforcement
O Omission Training/Time out
O Punishment
O Positive Reinforcement
Answer:
O Negative Reinforcement
Explanation:
Negative reinforcement removes something problematic as a reward. Thus, wearing a coat when it colds removes the negative thing (cold) when person walks out
Why wind is the best energy for our future.
Because it is environmently friendly and doesn't cause air pollution.
what is tye effect of high concentration of O2 on respiration
Prolonged exposure to above-normal oxygen partial pressures, or shorter exposures to very high partial pressures, can cause oxidative damage to cell membranes, collapse of the alveoli in the lungs, retinal detachment, and seizures.
Which two body parts are composed of tissue that is made up of epithelial cells working together? ☐A. Skin ☐ B. Glands C. Brain | D. Bones
Answer:
Skin and glands
Which of the following is the correct pairing of the psychological perspective and therapy treatment?
o Humanism and Psychotherapy
o Psychodynamic and Token Economy
o Behaviorism and Client-Centered Therapy
o Cognitive and Rational Emotive Therapy
Answer:
humanism and psychotherapy
Which hypothesis is testable?
It is feasible to make observations that agree or disagree with a theory if it is testable. A theory is not scientific if it cannot be tested by observation.
Soil texture is determined by the amount and distribution of mineral particles.
Please select the best answer from the choices provided
T
F
Answer:
The answer is trueeeeee
Explanation:
Answer:
t
Explanation:
What is most likely result of a large asteroid hitting earth
Answer:
a huge amount of dust thrown up into the atmosphere.
Explanation:
"If the asteroid hits on land, there would be a huge amount of dust thrown up into the atmosphere. If it hits in water, then there would be an increase in water vapor in the atmosphere. This would result in an increase in rain resulting in landslides and mudslides."
Hope This Helped
Which portion of The United states is at a high risk for hurricanes?
O Great lakes
O Desert southwest
O West coast
East Coast
Answer:
The west coast/east coast because hurricanes happen in marine tropic tectonic plates that also cause heavy tropical storms,tsunamis, and hurricanes. So therefore hurricanes apear in west and east coast.
Explanation:
Overall, bottle bills have not been a very successful financial incentive to reduce waste.
True
False
Answer:
false
Explanation:
Which main plant tissue are the lines pointing to in the enlarged diagram? dermal ground vascular meristem
Answer:
ground
Explanation:
I took the test and got it right. Any one els is summer school?
The plant tissue that is pointed out by the lines in the enlarged diagram is ground tissue. Therefore, option B is correct.
What are ground tissues?Ground tissues are one of the three types of plant tissues. The other two tissues are dermal and vascular tissues. Ground tissues are responsible for most of the metabolic functions of the plant, including photosynthesis, storage, and support.
Ground tissues are composed of several different types of cells: parenchyma, collenchyma, and sclerenchyma. Parenchyma cells are the most common type of ground tissue cells. They are responsible for photosynthesis, storage, and gas exchange.
Collenchyma cells provide support to growing parts of the plant. Sclerenchyma cells provide structural support to mature parts of the plant. Thus, option B is correct.
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Your question is incomplete, most probably the full question is this:
Which main plant tissue are the lines pointing to in the enlarged diagram?
A. Dermal
B. Ground
C. Vascular
D. Meristem
The image is attached below.
