Answer:
Because ferns and fern allies posses true vascular tissues, they can grow to be much larger and thicker than the bryophytes.
Bryophytes mark the transition to land and the origin of vascular plants, and hence, link the seed and vascular plants to their algal ancestors.
Molecular phylogenetic studies conclude that bryophytes are the earliest diverging lineages of the extant land plants. They provide insights into the migration of plants from aquatic environments to land.What is evolution trends?Evolutionary trends, whether macro evolutionary events across higher taxa and large spans of geologic time, or more circumscribed events within smaller clades, have long played a prominent role in evolutionary theory.
The identification of trends in the history of life has been used as evidence for the increasing adaptions of life, for evolutionary progress, and more recently as support for selection at multiple levels.To know more about evolution here
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during ____ the nuclear membrane around the nucleus begins to disintegrate
Answer:
during prophase, the nuclear membrane around the nucleus begins to disintegrate.
Help me please!!! Can somebody help me
Answer:
c
Explanation:
A car goes 65 km/h for 4.5 hours. give the distance covered by the car.
Answer:
292.5 km
Explanation:
In order to solve this problem, we will simply need to multiply the amount of miles driven in an hour, and how many hours.
The formula is: Distance=Speed x Time
In this case:
Speed: 65 km/h
Time: 4.5 hrs
Now, we will just need to multiply. 65 x 4.5 = 292.5
The answer is 292.5 km.
what is variations.
Answer:
1 : a change in form, position, or condition Our routine could use some variation.
2 : amount of change or difference Scientists record the variations in temperature
Explanation:
i hope it helps mark me brainliest^^
Describe the change that occur in the skin to get rid of excess heat.
Answer:
brainly me
Explanation:
When we get too hot: Sweat glands in the skin release more sweat. The sweat evaporates , removing heat energy from the skin. Blood vessels leading to the skin capillaries become wider - they dilate - allowing more blood to flow through the skin, and more heat to be lost.
When heat activates sweat glands, these glands bring that water, along with the body's salt, to the surface of the skin as sweat. Once on the surface, the water evaporates. Water evaporating from the skin cools the body, keeping its temperature in a healthy range.
What do you mean by sweat glands?" Sweat gland is defined by a simple tubular gland of the skin that excretes perspiration, is widely distributed in nearly all parts of the human skin, and consists typically of an epithelial tube extending spirally from a minute pore on the surface of the skin into the dermis or subcutaneous tissues where it ends in a convoluted tuft."
What are the types of sweat glands?There are two types of sweat glands:
eccrineapocrine.What is the main function of sweat gland?"The primary function of sweat glands is to keep the core body temperature at approximately 37 °C by releasing sweat in a hot environment or during physical activity."
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What gas in the air is used by plants to make their own food?.
Carbon dioxide
_________________
Answer:
Carbon Dioxide
Explanation:
they breathe in carbon dioxide and give out oxygen as a waste product for them, so the answer is Carbon Dioxide.
Hope this helps :D
100 POINTS
Complete the sentence: Combustion heating and cooling appliances are sources of
and often found in basements.
O asbestos
O radon gas
O tobacco smoke
O carbon monoxide
Answer:
Carbon monixide
Explanation:
Right answer
Answer:
carbon monoxide is the awnser
Explanation:
When I took this quiz that was the right awnser.
In photosynthesis what is the end product of carbon dioxide?
Answer:
Carbohydrates(glucose) and Oxygen.
Explanation:
During the process of photosynthesis, Carbon dioxide and Water combine in the presence of Sunlight and Chlorophyll to produce Carbohydrates (glucose) and Oxygen. Thus, the end products of photosynthesis are Carbohydrates(glucose) and Oxygen.
What is the role of worms bacteria and fungi in a food web.
Answer:
Decomposers are organisms (mostly bacteria and fungi) that break down dead plants and animals, eventually turning them into nutrients that will be added to soil. These nutrients are very important to continue the cycle in the ecosystem. Slugs, earthworms, millipedes, and centipedes also help break down dead things.
Explanation:
An earthquake causes a new canyon to form. The canyon separates two populations of snakes. After many years, the canyon fills in, and the two populations come back together. If they can still interbreed, then __________.
Select one:
a.
evolution has occurred
b.
evolution has not occurred
c.
evolution will occur when the offspring are born
d.
evolution will never occur
Answer:
B. Evolution has no occurred
Explanation:
The change in genetics would prohibit the two populations from interbreeding.
EX. Take humans and apes, we are generally the same species however we cannot successfully interbreed.
Which change in surface water will cause a decrease in groundwater?
a.rising temperature melt glaciers
b.drought decreases the flow of streams
c.treated wastewater is released over a field
d. water conservation methods are adopted by a town
Answer: D
Explanation:
What feature of the genetic code makes it possible for a single protein to be encoded by more than one mrna sequence?.
Answer:
What feature of the genetic code makes it possible for a single protein to be encoded by more than one mRNA sequence? More than one codon can specify the same amino acid. How were researchers able to "crack the genetic code"?
What abiotic factors affect the rate of photosynthesis.
Answer:
The rate of photosynthesis in a plant can be determined by three external factors: temperature, light intensity, and available carbon dioxide concentration. In any given situation any one of these may become a limiting factor if they are below the optimal level (Alcott and Mindorff).
What part of the cell provides temporary storage of food, enzymes, and waste products
Answer:
The Vacuole is the part of the cell that provides temporary storage to food, enzymes, and waste products.
Explanation:
The cell is the basic or fundamental unit of life. It is composed of a cell membrane, cytoplasm and cell organelles. The organelle that provide temporary storage for food, enzymes and waste products is vacuole.
What is vacuole?Vacuole is a membrane-bound cell organelle that is permanent and large in size in plant cell, but are temporary or nearly absent in animal cell.
It is the compartment that occupies a significant volume in plant cell.It is temporary location for the storage of food, enzymes and other waste products.
Thus, vacuole is the cell that provides temporary storage of food, enzymes, and waste products.
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Explain the general process of nuclear fission. what is created from fission? (site 1)
Answer:
During nuclear fission, a neutron collides with a uranium atom and splits it, releasing a large amount of energy in the form of heat and radiation. More neutrons are also released when a uranium atom splits. These neutrons continue to collide with other uranium atoms, and the process repeats itself over and over again.
Explanation:
:)
Plants contain meristems whose major function is to:.
Answer:
Growth in length
Explanation:
Meristems are regions of active cell division within a plant. In general there are two types of meristems: apical meristems and lateral meristems. Apical meristems are located at the tip of the shoot and the root, as well as at the tips of their branches. These meristems occur in all plants and are responsible for growth in length.
Cuales son 3 biomoleculas organicas que tenga el oxigeno?
Bioelementos primarios,Bioelementos secundarios,Oligoelementos
If am elephant were chasing you, it's enormous mass would be very scary .but if you zigalzagged ,the elephant's mass would be to your advantage. why?
If you zigalzagged ,the elephant's mass would be to your advantage due to inertia.
How zigalzagged would be to your advantage?If you move zigalzagged ,the elephant's mass would be to your advantage because the elephant's mass is greater than yours so due to inertia, the elephant would have more difficulty switching directions than you.
So we can conclude that if you zigalzagged ,the elephant's mass would be to your advantage due to inertia.
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How many sides are on a regular die? (Die is singular; dice is plural)
Answer:
6Explanation:
Thats all... lol
Pls, if you don't mind mark this brainly tyy
C:
what is the difference between Genetics and environment?
it's child development class help me please
Genetics: that deals with the heredity and are varnation of organisms.
and
Enviroment: that condition by which one is surrounding.
"I think"
why does the oxygen atom in a water molicule have a negative charge
Answer:
The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.
The science of naming, identifying, and classifying organisms is called ________. cladistics phylogeny taxonomy
What are the organelle differences in plant and animal cells
Answer:
Plant cells lack a centrosome and lysosomes, while animal cells do. Animal cells lack a cell wall, chloroplasts, and other specialized plastids, as well as a big central vacuole, but plant cells do.
Explanation:
During metaphase the chromosomes line up along the:.
Answer:
center of the cell at the metaphase plate.
Explanation:
An individual with the AO genotype and an individual with the BO genotype can produce offspring with which of the following phenotypes?
A, B, or O only
A, B, AB, or O
A or B only
O only
Hello people ~
The suspended particles released by combustion of coal in air may lead to a health disease. Select the correct option.
A. Goitre
B. Arthritis
C. Asthma
D. Bone cancer
C. Asthma
- Goitre is due to lack of iodine in diet.
- Arthritis due to inflammation of the joints.
- Bone cancer due to radiation.
- Asthma due to intake of harmful gases like CO₂.
Answer:
Asthma
Explanation:
Burning of coal in air causes combustion the reaction is given by
C+O_2-->CO_2Carbon dioxide is a harmful gas for our lungs so it causes Asthma
The freezing point of a 1 m solution of f e c l 3 is expected to be choose. That of a 1 m solution of glucose. This is because f e c l 3 choose. And choose. Compared with glucose
1m solution of f e c l 3 has a lower freezing point compared to 1 m solution of glucose.
What is freezing point?The term freezing point refers to the point at which liquid converts to solid. We must note that the freezing point iof a substance is a colligative property hence it depends on the amount of substnace present.
Having said this, we know that 1m solution of f e c l 3 contains more particles than 1 m solution of glucose hence 1m solution of f e c l 3 has a lower freezing point compared to 1 m solution of glucose.
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The freezing point of 1M FeCl3 is found to be lower compared to the freezing point of 1M Glucose.
What do you mean by Freezing point?A Freezing point may be defined as the temperature at which a liquid turns into a solid when cooled.
1M FeCl3 solution is able to dissociate into cations and anions in an aqueous solution and thus will have more solute particles as compared to 1M Glucose.
Therefore, the freezing point of 1M FeCl3 is found to be lower compared to the freezing point of 1M Glucose.
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What is a dose-response relationship?
change on an organism caused by different levels of exposure or doses to a stressor after a certain exposure time
What does Konnikova mean by the phrase ""Caveats don’t fit in single columns""?
Which of the following is a concern in using genetic engineering in agriculture?
Group of answer choices
A. Pests are more likely to destroy genetically modified crops
B. The gene added to the crop may trigger allergies or other health concerns.
C. Genetically engineering crops is inexpensive, which harms small farmers.
D. All genetically engineered crops must be grown in a certain type of soil.
Answer:
B
Explanation:
Genetic engineering can affect health and the environment. Plus, it can trigger allergies.