The diagram shows how a community will colonize bare rock, and then change over hundreds of years.
n this example, what is the main cause of the changes that the community undergoes?
a
ecological succession, because each community promotes the growth of the succeeding community
b
climate change, because each community is determined by climate
c
extreme weather events, such as hurricanes, because they disrupt one community and open niches for a new community
d
tectonic events, such as earthquakes, because they disrupt one community and open niches for a new community
Answer:
a
. ecological succession, because each community promotes the growth of the succeeding community
Explanation:
Ecological succession is the process in which species structure of an ecological community changes over time.
The given example shows ecological succession (secondary succession) as in the image series of community changes over hundred of years including growth of community from bare rocks to trees as each community is promoting growth of succeeding community. But the colonized community of trees after series of changes is disturbed by human activities or natural calamity (as shown in image) reduces an already established ecosystem is called secondary succession (Type of ecological succession).
Hence, the correct option is a. ecological succession, because each community promotes the growth of the succeeding community
What types of specialized cells and tissues do flatworms have in their excretory and
nervous systems?
Answer:
Explanation:
The flatworms are acoelomate organisms that include many free-living and parasitic forms. Most of the flatworms are classified in the superphylum Lophotrochozoa, which also includes the mollusks and annelids. The Platyhelminthes consist of two lineages: the Catenulida and the Rhabditophora. The Catenulida, or “chain worms” is a small clade of just over 100 species. These worms typically reproduce asexually by budding. However, the offspring do not fully detach from the parents and therefore resemble a chain in appearance. All of the remaining flatworms discussed here are part of the Rhabditophora. Many flatworms are parasitic, including important parasites of humans. Flatworms have three embryonic tissue layers that give rise to surfaces that cover tissues (from ectoderm), internal tissues (from mesoderm), and line the digestive system (from endoderm). The epidermal tissue is a single layer cells or a layer of fused cells (syncytium) that covers a layer of circular muscle above a layer of longitudinal muscle. The mesodermal tissues include mesenchymal cells that contain collagen and support secretory cells that secrete mucus and other materials at the surface. The flatworms are acoelomates, so their bodies are solid between the outer surface and the cavity of the digestive system.
Which of the following are thought to have been engulfed by prokaryotic cells and evolved into chloroplasts?
ribosomes
O protozoa
O photosynthetic bacteria
O mitochondria
vious
Answer:
Mitochondria and chloroplasts likely evolved from engulfed prokaryotes that once lived as independent organisms. At some point, a eukaryotic cell engulfed an aerobic prokaryote, which then formed an endosymbiotic relationship with the host eukaryote, gradually developing into a mitochondrion.
Answer:
Mitochondria
Explanation:
I would say mitochondria because without this, how would energy be produced?
Which of the following statements about blood pH is true?
A. Carbon dioxide is a buffer that helps the blood pH remain around 7.4.
B. Carbonic acid is a waste product that makes blood pH deviate from 7.4.
C. 7.4 is a neutral pH, and the whole body needs to remain neutral to maintain homeostasis.
D. At a pH too far from 7.4, enzymes in the blood will stop functioning properly.
Answer:
D. At a pH too far from 7.4, enzymes in the blood will stop functioning properly.
Explanation:
The pH of blood is regulated 7.35 and 7.45. pH shows acid-base balance in the body and maintains a healthy balance of acidity and alkalinity.
Balance of acid-base provides optimum condition to enzymes to perform proper function. As, enzymes required optimum pH range for functioning properly, pH too far from 7.4 can denature the enzymes. Enzymes will lose its shape and will not function properly at high pH.
Hence, the correct option is D.
Does anyone have the Lab#5 Stimulated Gel Electrophoresis Who Robbed The Bank?
why it's important to manage our natural resources
Answer:
Following are the reasons why the management of natural resources is important: To maintain a balance in the ecosystem. To avoid further destruction of the environment. To avoid over-consumption of the natural resources.
Explanation:
We should help nature grow.
tood chai
2. What is the difference between a specialist and a generalist?
Answer and Explanation:
The difference between a specialist and a generalist is that a generalist is able to eat a variety of food and can survive in different environmental conditions while a specialist is able to eat a specific diet or food and can survive in a certain type of environment.
Hope this helps!!! PLZ MARK BRAINLIEST!!!
What is another name for macroevolution? A. speciation B. genetic economy C. globalized evolution D. Mendel's Law
Another name for macroevolution is speciation, which is present in Option A as macroevolution refers to large-scale evolutionary changes, including the origin of new species.
What is speciation?Macroevolution refers to large-scale evolutionary changes that occur over long periods of time, such as the origin of new species, the diversification of major groups of organisms, and the extinction of entire lineages. Speciation is the process by which new species arise from existing ones, and it is one of the primary mechanisms of macroevolution. Allopatric speciation occurs when a population is geographically isolated from the rest of its species and undergoes genetic divergence over time, eventually resulting in the formation of a new species, and sympatric speciation occurs when a new species arises within the same geographic area as its parent species, often as a result of reproductive isolation caused by ecological or behavioral factors.
Hence, another name for macroevolution is speciation, which is present in Option A.
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. What is produced by the ovaries? cervix and eggs testosterone and cervix eggs and estrogen estrogen and testosterone
Answer:
eggs and estrogen.
Explanation:
the ovaries produce eggs which are called ova (singular ovum) and also estrogen
A scientist stated the following hypothesis:
If I change the temperature of water in a fish tank, it will affect fish breathing rate.
Identify the independent variable:
fish breathing rate
type of fish
type of fish tank
temperature of water
Explain two complex modes of human inheritance. Give examples.
Answer:
the pleiotropy and epistasis (more info below)
Explanation:
Many human traits have dynamic forms of ancestry. We can be regulated by a single gene with several alleles, or by several genes. Further complication can be added by pleiotropy (one gene, multiple effect) and epistasis (gene-gene interaction). A number of hereditary diseases are triggered by defects in one or a few genes. examples: autosomal dominant, autosomal recessive, X-linked dominant, X-linked recessive, and mitochondrial.
hope this helped!
When would a diameter cut be appropriate?
O A problem in a 3-foot section of the tree
O A large blemish that ran the full length of the tree
O A disease from the bark had ruined the wood underneath it
One end of the tree was significantly narrower than the other
Answer:
A problem in a 3-foot section of the tree
Explanation:
it is the most reasonable way to choose
The following are part of the carbon cycle EXCEPT _________. a.) Respiration b.) Precipitation c.) Decomposition d.) Photosynthesis
Answer:
b:
is your best answer
A habitat is comprised of a flock of ducks around a streambed. Which of the following describes this ecosystem? All the organisms living in and around the streambed, such as ducks, meadow voles, monarch butterflies, and others All the organisms living in and around the streambed, together with the rocks, substrate, water, surrounding air, and other non-living components Non-living components of the streambed and the organisms living outside the streambed Non-living components surrounding the streambed and the organisms living inside the streambed
Answer: All the organisms living in and around the streambed, together with the rocks, substrate, water, surrounding air, and other non-living components
Explanation:
An ecosystem is interaction between living and nonliving things in an area. There are biotic and abiotic factor, abiotic means non living things such as air and biotic means living things such as animals.
All the organisms living in and around the streambed, together with the rocks, substrate, water, air, and other non-living components, make the ecosystem. Thus, option B is correct.
What is an ecosystem?
An ecosystem is where biotic factors like plants, animals, and microorganisms live and interact with the abiotic factors like water, trees, land, soil, rocks, air, etc.
The ecosystem of the flocks of ducks around the streambed will include the ducks, microbes, and other biotic factors along with the streambed, rocks, air, water, etc.
Therefore, the biotic and the abiotic factors comprise the ecosystem.
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organisms that consume wastes to obtain the nutrients they need to survive are classifieds as
Answer:
Decomposers
Explanation:
Answer:
Decomposer
Decomposers are organisms that break down dead or decaying organisms, they carry out decomposition, a process possible by only certain kingdoms, such as fungi. Like herbivores and predators, decomposers are heterotrophic, meaning that they use organic substrates to get their energy, carbon and nutrients for growth and development. While the terms decomposer and detritivore are often interchangeably used, detritivores ingest and digest dead matter internally, while decomposers directly absorb nutrients through external chemical and biological processes. Thus, invertebrates such as earthworms, woodlice, and sea cucumbers are technically detritivores, not decomposers, since they must ingest nutrients - they are unable to absorb them externally.
21. In a portion of a gene, the nitrogenous base sequence is T-C-G-A-A-T.
Which nitrogenous base sequence would normally be found bonded to this
section of the gene?
A-C-G-T-A-A
A-C-G-U-U-A
A-G-C-T-T-A
U-G-C-A-A-U
Answer:
A-G-C-T-T-A
Explanation:
The nitrogenous base-pairs are Adenine (A)—Thymine (T) and Cytosine (C)—Guanine (G).
Adenine on one strand of a DNA molecule means thymine on the complementary strand, and vice versa.
Cytosine on one strand of a DNA molecule means guanine on the complementary strand, and vice versa.
A gene is a specific portion of a DNA molecule that codes for a trait.
What factor makes the Hawaiian Islands the perfect place for plant species to diversify?
Answer:
Climate
Water Supply
Resources
Explanation:
Answer in my own words:
The weather offers a large amount of water and warm temperatures. This services have all the essential tools to sustain plant life or the plant health.
Key words:
1: Sustain
2: Essential
Hope this helps.
Answer:
Temperature, recources, location, humidity, percipitation
Explanation:
Explain the process of alluvial land formation and resulting soil formation??
Answer: The alluvial soil is formed by the rivers that erode the rocks.
Explanation:
The rivers flows through the mountains and erodes the rocks. The sediments like silt and gravel get accumulated at the banks of the river that were flooded by the rivers.
The deposition of the eroded sediments results in the development and formation of the alluvial soil. The accumulation of the alluvial soil leads to development of alluvial land.
Please help I reallly don’t understand this please just explain how photosynthesis and how water chemical mechanical energy works and how movement of matter and energy from plant work pleaseee help Construct a model to show the movement of matter and energy from plants into other organisms. Show how mass and energy are conserved before and after each interaction. For example, the beginning substances before an interaction equal the ending substances, and vice versa.
Answer:
▪Photosynthesis is the process by which green plants transform light energy into chemical energy.During photosynthesis, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen.
▪Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP), and then release waste products.
Photosynthesis is the process by which green plants transform light energy into chemical energy. During photosynthesis, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen.
What is photosynthesis?The term photosynthesis has been defined as the process in which green plants prepare their own food in presence of sunlight and during this process heat energy converts into chemical energy.
Cellular respiration has been known as the set of the metabolic reactions as well as the processes that take place in the cells of the organisms to convert chemical energy from the oxygen molecules or nutrients into the adenosine triphosphate (ATP), and then release waste products.
The energy and matter present at the start of any reaction will be same at the end of it as they can neither be created nor destroyed but can change from one form to another.
Therefore, Photosynthesis is the process by which green plants transform light energy into chemical energy. During photosynthesis, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen.
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[FW.03]A pond is located beside an open mine. Mercury from the mine contaminates the river water. This is an example
of
O single pollution
multiple pollution
point source pollution
non-point source pollution
What are two things that chlorophyll does for a plant.
hello,
here is your answer:
**********
Green plants have the ability to make their own food. They do this through a process called photosynthesis, which uses a green pigment called chlorophyll. Chlorophyll gives plants their green color. Chlorophyll’s job in a plant is to absorb sunlight. Through photosynthesis, the plant uses the stored energy to convert carbon dioxide and water into glucose (a type of sugar). Plants use glucose together with nutrients taken from the soil to make new leaves and other plant parts. The process of photosynthesis produces oxygen, which is released by the plant into the air.
**********
hope this helped,
:)
RNA is located in the____ of the cell.
Núcleos
Cytoplasm
Chromosome wall
Both A and B
How do you form a contraction?
Answer:
Contractions are formed when words are shortened by omitting one or more letters, most often replaced by an apostrophe. Contractions most frequently occur when two terms that usually appear next to each other in a sentence are merged into a new , unique phrase. Hope this helped!
Why should the announcement of a third supply intake for Las Vegas water cause concern?
Answer:
The announcement is of concern because it includes drilling activities on the ground, which can cause geological problems that cause unexpected and bad results for Las Vegas and the surrounding region.
Explanation:
Which of the following descriptions is correctly paired with its viral cycle?
A. Lytic cycle: Viral DNA is integrated into the host's DNA for replication.
B. Lytic cycle: Integrated viral DNA can cause the host cell to become more pathogenic.
C. Lysogenic cycle: Infection remains hidden until many years later when lysis and cell death occur.
D. Lysogenic cycle: Invading viruses direct the cell to produce enzymes that break down the cell wall.
// Please Answer // !!!
Which answer describes one plant and one animal that is likely to be found in the tundra?
a.) a plant with leathery or waxy leaves and an animal with a layer of fat
b.) a plant with bright-colored flowers and an animal with sharp teeth
c.) a plant with broad, flat leaves and an animal with a fur coat
d.) a plant with long roots and an animal with bright coloration
Answer: A. a plant with leathery or waxy leaves and an animal with a layer of fat.
Explanation: The tundra is not only cold but also very dry. The leathery or waxy leaves in a plant help it retain moisture and the layer of fat in an animal will help it keep warm.
The option that describes one plant and one animal that is likely to be found in the tundra. The correct option is a.)
What is a tundra forest?Tundra forests are present in the tundra biome. This biome has a very low temperature. The place is usually cold and frozen and the trees are adapted for snowy areas.
The animals that are present in the tundra region, will have the adaptation to cold weather, so the skin of these animals will be leathery and has a layer of fat or fur.
Thus, the correct option is a.) a plant with leathery or waxy leaves and an animal with a layer of fat.
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Describe the changes of a wave as it approaches the shore and becomes a breaker
Answer:
As a wave approaches the shore, it grows in height and steepness as the water gets more shallow. Eventually, the waves grows to the point that the water isn't deep enough to support it. At this point, the wave topples, or breaks, which results in a breaker.
Explanation:
What's the most common type of mutation, and what impact does it have on natural selection?
Answer:
i think that's gene mutation
Explanation:
Answer:
The most common type of mutation is a deleterious mutation. Natural selection acts to remove this allele from the population.
Explanation:
A homozygous recessive female mates with a heterozygous male. What percentage of the
offspring could be homozygous dominant?
a. 50%
c. 0%
b. 100%
d. 25%
Answer:
C
Explanation:
0%
rr x Rr = Rr, Rr, rr, rr
Answer:
The answer is C
Explanation:
C: 0%
what traits are made up of a combination of genes?
Answer: Alleles
Explanation:
