Answer:
Over time, plants had to evolve from living in water to living on land. In early plants, a waxy layer called a cuticle evolved to help seal water in the plant and prevent water loss. ... To allow the plant to retain water and exchange gases, small pores (holes) in the leaves called stomata also evolved (Figure below)
Explanation:
1 DNA evidence suggests that the first eukaryotes (green plants) evolved from prokaryotes (through endosymbiotic events) between 2500 and 1000 million years ago. ... Cyanobacteria have a close evolutionary relationship with eukaryotes. They have the same photosynthetic pigments as the chloroplasts of algae and land plants.
2Plants adapt their growth, including key steps in their life cycle such as germination and flowering, to take advantage of environmental conditions. ... All land plants evolved from an aquatic ancestor, and it was after colonisation of the land that the gibberellin mechanism evolved.
3 700 million years ago
The researchers found that land plants had evolved on Earth by about 700 million years ago and land fungi by about 1,300 million years ago — much earlier than previous estimates of around 480 million years ago, which were based on the earliest fossils of those organisms.
4 The earliest trees were tree ferns, horsetails and lycophytes, which grew in forests in the Carboniferous period. The first tree may have been Wattieza, fossils of which have been found in New York State in 2007 dating back to the Middle Devonian (about 385 million years ago).
5 Plants adapt to their environment from necessity. Plants may also adapt by growing lower and closer to the ground to shield themselves from wind and cold. Desert environments may have some of the following adaptations, these help the plant to conserve food, energy and water and still be able to reproduce effectively.
giveme brainlyest
An architect is designing a recording studio for a musician. The studio needs to be soundproof
to keep out noise. The architect plans to use soundproof panels for the walls, ceiling, and floor.
Each soundproof panel is made from two sheets of hard foam with a vacuum in between
them, as shown in the diagram. Describe two ways the soundproof panel works to keep out
noise.
Answer:
I think the correct one is A
Explanation:
Please can anyone help me ill make you the brainiest, I need help with these questions!
1.How many moles of oxygen react with 10.5 moles of methane?
2.How many moles of methane react with 10.7 moles of oxygen?
3.How many moles of carbon dioxide are produced from 80 moles of methane?
4.How many moles of water are produced from 800 moles of methane?
5.How many grams of oxygen will react with 85 grams of methane?
Answer:
the moles of oxygen react only 1.05 moles
Explanation:
because the formula of methane is CH4 so it has 10 molecule so 10.5 ÷10 =1.05
Which is an example of artificial light?
Answer:
It would be B. A lightbulb
Answer:
LIGHTBULB, sry if i did caps lock
Explanation:
Explain why scientists classify organisms and how scientists classify species.
A scientist creates a cat that glows in the dark due to the insertion of genes from another organism. What type of biotechnology did they use?
cloning
genetic mutation
artificial selection
genetic engineering
Answer:
Artificial selection
Explanation:
Please can anyone help me ill make you the brainiest, I need help with these questions! please please please
1.How many moles of oxygen react with 10.5 moles of methane?
2.How many moles of methane react with 10.7 moles of oxygen?
3.How many moles of carbon dioxide are produced from 80 moles of methane?
4.How many moles of water are produced from 800 moles of methane?
5.How many grams of oxygen will react with 85 grams of methane?
Answer:
1.07 moles react
Explanation:
because it mass in gram is 10.7 and molar mass is 10 and if we divide answer is 1.07
Answer:
Science not a fan but 2 moles would be my guess
Explanation:
they banned my other account but it still chardon
One type of bacteria reproduces once every 60 minutes. If there are 2 bacterial cells to begin with, then after 4 hours there will be a total of
bacterial cells.
Answer:
6 bacterial cells
Explanation:
Hope this is helpful!!
Answer:
The answer is 8 bacterial cells.
Explanation:
15. female reproductive hormone (either one)
_________________________
Answer: The hormones controlling the female reproductive system include - (), - (), and (), all of which are produced in the brain.
Which of the following might be an adaptation for a predator? AS SOON AS POSSIBLE NEED HELP PLS THX
Answer:
we need the answers
Explanation:
Answer:
Many predators have adaptations that help them survive in the wild. For example, the snake shown below has camoflauge coloring to look like its surroundings. This gives it the element of surprise when going to attack its prey. These adaptations help the predator in hunting for food. Predators have "weapons", or adaptations, that help them hunt and kill prey. Predators' three main "weapons" are teeth, claws, and jaws. The lion below has all 3 of these "weapons" or adaptations that are used for catching its prey. A lion has sharp claws for catching and grabbing hold prey such as a zebra, and strong jaws and teeth for biting and killing the zebra and for ripping off and chewing the meat.
Explanation:
Hope this helps.
3. Why does asexual reproduction result in offspring with identical genetic variation?
Answer:
Because the offspring are not getting genetic material from another organism.
Explanation:
the anthers in this flower located above or below the stigma
Answer:
The anther produces pollen (male reproductive cells). The filament holds the anther up. During the process of fertilization, pollen lands on the stigma, a tube grows down the style and enters the ovary. Male reproductive cells travel down the tube and join with the ovule, fertilizing it.
Explanation:
PLSSS HELP ITS EASY JUST THAT IM D_UMB
Sickle-cell anemia is a recessive trait in humans. In order to express the disease, an affected individual must inherit two recessive alleles (ss). What is the probability that the offspring of two heterozygous parents will also be heterozygous?
a) 0/4
b) 1/4
c) 1/2
d) 3/4
Answer:
The answer is 1/2 i tried and got it wrong ;-;
Explanation:
What are proteins that are found on the surface of some red blood cells.
genes
alleles
antigens
immunoglobins
Two populations live in the same habitat and compete for food. The first group is larger and multiplies through asexual reproduction; the second reproduces sexually. What could happen to cause the second group to outnumber the first?
Answer:
an environmental change that causes the larger but unadaptable species to die off
Explanation:
Two populations live in the same habitat and compete for food. The first group has larger and multiplies through asexual reproduction the second reproduces sexually an environmental change that causes the larger but unadaptable species to die off.
What happen when the process of meiosis does not takes place?If there has no process of meiosis takes place chromosome number will be doubled disturbing the genetic make up of the organism. If no meiosis has been takes place then the resulting of the zygote will be of double the number of the chromosomes. The genetic makeup would change entirely. The process of the meiosis halves the number of chromosomes in haploid cell and maintain the serenity of organism.
The process of the meiosis due to crossing over, genetic variation occurs which let the offspring receive favourable alleles to survive in new conditions and in the diploid organisms first the gametes are formed, then fertilization occurs and the diploid cell has formed which gives rise to the organism having diploid cells.
Therefore, Two populations live in the same habitat and compete for food. The first group has larger and multiplies through asexual reproduction the second reproduces sexually an environmental change that causes the larger but unadaptable species to die off.
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NADP+ is converted into NADPH during the light-dependent reactions. Where does the hydrogen
come from?
The nucleus of a cell is most responsible for what function?
Answer:
The main function of the cell nucleus is to control gene expression and to mediate DNA replication during the cell cycle. The nucleus provides a site for transcription in the cytoplasm, allowing levels of regulation that are not available in prokaryotes.
Which of the following is the function of nucleic acids?
A. Breakdown chemical compounds
B. Carry heredity information
C. Structural support
D. Short-term energy storage
Answer:
B. Carry heredity information
Explanation:
Nucleic acids are one of the four types of biological molecules in nature. The other three being: proteins, carbohydrates, lipids. Nucleic acids consists of Deoxyribonucleic acid (DNA) and Ribonucleic acid (RNA).
DNA is a nucleic acid found in the NUCLEUS of eukaryotic cells or nucleoid region of prokaryotic cells where it functions to store or hold genetic information for the cell. On the other hand, RNA functions to carry the stored information in order to be expressed. Hence, according to this question, the nucleic acid functions to carry heredity information.
____ is the use of nutrients to provide energy.
A. Metabolism
B. Calorie
C. Absorption
D. Digestion
Answer:
The answer is D. Digestion
Groups of ______________
A. Specialized Genes
B. Specialized cells
C. specialized proteins
form____________
A. homeostasis
B. specialized cells
C. organs/tissues
and cooperate to help organisms maintain _________________
A. homeostasis
B. organs/tissues
C. specialized cells
Answer:
B
C
A
Explanation:
cells make up tissues and organs ,and matianing homestais is the goal of your body.
Which factors below do NOT influence how much energy a person needs.
Answer:
hair color
Explanation:
it doesn't come hafter about the color b
---> The process of selecting a few organisms with desired traits to serve as parents of the next generation. Selective breeding of plants and animals to promote the occurrence of desirable traits in offpsring.?
The process of determining a few creatures possessing desirable characteristics to participate as the founders of the coming generation is Artificial selection.
Artificial selection
The discovery of advantageous characteristics among living things by humankind, as well as the efforts performed to improve and maintain such traits throughout upcoming populations or years.
It follows the same procedure as evolutionary processes, with the exception that with biological evolution, nature determines the decisions rather than humans.
Thus the above response is correct.
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One result of climate change is that ocean temperatures are increasing. If the temperatures continue to rise, what effect will that have on the oceans’ ability to retain CO2? How might this change affect the atmosphere? THIS IS SCIENCE WOULDNT LET ME SELECT IT
Answer:
See explanation
Explanation:
There is an equilibrium that exists between the carbon dioxide in the air and the carbon dioxide in the oceans. The temperature of the water affects its ability to hold carbon dioxide.
Hence, as the global temperature continues to rise and the water becomes warmer, its ability to hold carbon dioxide decreases. When this happens, the gas exchange across the air-ocean boundary is affected. There is now too much CO2 in the atmosphere owing to the disturbance of its air- ocean exchange equilibrium leading to more rise in temperature due to global warming.
all you need is in the photo
ASAP
Answer:
translation; mRNA --> protein.
It includes three steps: initiation, elongation, and termination.
Explanation:
After the mRNA is processed, it carries the instructions to a ribosome in the cytoplasm. Translation occurs at the ribosome, which consists of rRNA and proteins
Francis grew some plants for a science experiment. The sketch of his experiment after several days is shown. Which tropism is Francis most likely investigating?
The correct answer to this open question is the following.
Unfortunately, you did not provide the sketch or the photo that shows what Francis is doing. So we do not know what you are talking about.
However, trying to help you, we did some deep research and can comment on the following.
If the photo shows a plan under the light of a lamp, moving towards the lamp direction, then tropism is Francis most likely investigating is phototropism.
To better understand the concept, Tropism is the movement of a plant towards the direction of an influence exerted on it. This means that an external factor is introduced in order to make the plant grow through an external influence.
So when we use the term phototropism, this means that the plant responds to the direction of the source of light and grows in that direction. That is what Francis is using in his science experiment.
Answer:
phototropism
Explanation:
if you want an in depth answer, look at the other one, not mine lol! (I attatched the image)
What evidence exists to support
Darwin's idea of how populations
change over time?
Answer:
Fossils. Fossils provide solid evidence that organisms from the past are not the same as those found today, and fossils show a progression of evolution. Scientists determine the age of fossils and categorize them from all over the world to determine when the organisms lived relative to each other.
Explanation:
Which size cells are more efficient at obtaining nutrients?
first quarter moon
last quarter moon
new moon
full moon
Answer: Full Moon
Explanation:
In general, how might choosing a small sample size affect a scientific investigation?
A. A small sample size is more precise than a large sample size.
B. A small sample size is not as reliable as a large sample size.
C. A small sample size is less expensive than a large sample size.
D. A small sample size has fewer dependent variables than a large sample size.Following the War of 1812, the United States reached a number of agreements with foreign countries. Match the parts of each
Answer:
a small sample size is not as reliable as a large sample size
Explanation:
Question 7 (1 point)
How are humans changing the carbon der
Lesson 1.10
all of the choices
Answer:
Human activities affect the carbon cycle through emissions of carbon dioxide (sources) and removal of carbon dioxide (sinks). The carbon cycle can be affected when carbon dioxide is either released into the atmosphere or removed from the atmosphere.
Explanation:
does this help
How do
you
think
your
food sources
compare to the breakdown
Answer:
What we eat matters. The food choices we make every day have a big effect on the environment. The good news is that even small changes in what we buy and eat can add up to real environmental benefits, including fewer toxic chemicals, reduced global warming emissions, and preservation of our ocean resources.
Explanation:
The food choices we make every day have a big effect on the environment.
What are food sources?The good news is that even small changes in what we buy and eat can add up to real environmental benefits, including fewer toxic chemicals, reduced global warming emissions, and preservation of our ocean resources.
Some nutrients and dietary components are currently being underconsumed as a result of poor intakes of nutrient-dense meals and beverages from all food groups. The overall U.S. population is thought to be concerned about the dietary components calcium, potassium, dietary fiber, and vitamin D.
Examples of numerous nutrient-dense meals and drinks that are some of the best providers of these dietary components are given in the lists that follow.
These lists should be used by health practitioners to assist Americans identify the meals and drinks they like, those that reflect their cultural traditions and personal tastes, and those that also support their nutritional and food group needs.
Therefore, The food choices we make every day have a big effect on the environment.
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