Answer:
Conjugation, transduction and mutations.........
A scientist studies how the number of coyotes in San Diego County has changed over the last decade. Is this a population-level study, a community-level study, or an ecosystem-level study?
Answer:
Population level
Explanation:
Ecological studies can be performed at different hierarchy levels:
Organism Population CommunityEcosystemPopulations are groups of individuals from the same species, with similar characteristics, capable of crossing, leaving offspring, and living in the same habitat at the same time. These groups are reproductively isolated from other species groups. Individuals belonging to a species cannot reproduce with members of other species.What results of interest about this organization level is knowing the minimum size of the population needed to leave fertile offspring that ensure the population will survive over time. Genetic variability is also a significant factor because it allows evolutive adaptation to environmental changes. A population might be severely affected by evolutive forces such as genetic flow, genetic drift, and natural selection.
When analyzing the evolution of a population in time, there are parameters to consider regarding its size, such as the generational time, growth rate per capita, the net reproductive rate, the reproductive value, among others.
A community might be defined as a group of organisms of different species that coexist in a specific time and space.When ecologists talk about a Community, they refer to the existing interaction between different species that share the same habitat and at the same time. What results of interest about the study of this organization level are the inter-specific interactions. These interactions involve competition, predation, parasitism, mutualism, etcetera, and each species carries out a different role in these interactions. These relationships and the results are what determine the destiny of the populations and their size.
The ecosystem is composed of living and non-living things that interact and depend on each other. These are the biotic and abiotic factors.• Abiotic factors are physical and chemical components of the ecosystem. These are the non-living elements.
• Biotic factors are all the living components in the ecosystem.
Biotic and abiotic factors influence the survival and reproduction of living beings. These are constantly interacting. If one of these components is removed, the whole ecosystem will change because its equilibrium has been altered.
Every abiotic component influence organisms and their survival and reproductive rates.
When analyzing how the number of coyotes in San Diego County has changed over the last decade, we are performing a population-level study. We need to know how the population changed its size through the years, but not the interactions with other species or abiotic factors. Interactions are not of interest in this study.
If oxygen is more concentrated outside a cell than inside
Answer:
What happens if the concentration of oxygen molecules outside the cell is lower than that inside the cell? Diffusion.....the oxygen molecules will move inside the cell until the concentration is equal inside and outside. Why do many cellular processes depend on osmosis?
Explanation:
Three common types of passive transport include simple diffusion, osmosis, and facilitated diffusion.
If oxygen is more concentrated outside a cell than inside diffusion will occur.
Oxygen is an element that is for cellular respiration which are metabolic processes that are essential for life.
A cell is the smallest and basic structure of organisms that is surrounded by a membrane.
Diffusion is the process by which molecules of a substance move from a region of where they are highly concentrated to a region where they are less concentrated.
Therefore when oxygen molecules is more concentrated outside a cell than inside, a concentration gradient exits between the inside and outside of the cell leading to diffusion of oxygen into the cell.
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octopuses and squids are part of the phylum mollusca. they both have a large brain and highly developed eyes. What other characteristic is common to these two animals?
Explanation:
They both have 8 tentaclesThey also both have beaks which is their mouthAnswer:
They both have 8 tentacles and they also both have beaks which is their mouth
Explanation:
(meow) <3
Five of the six carbons in a _____________ molecule have at least one hydroxyl and one hydrogen attached.
Question 4 options:
glucose
amino acid
glycerol
methane
fatty acid
According to the graph, which region's population is expected to approach 500 million in the year 2040?
Answer:
the United States, Canada and Greenlang
What is a disadvantage of using nuclear power?
The correct answer would be A.
What type of sugar is in the dna structure of a pinworm?
Answer:
Espero te sirva
Explanation:
Coronita
Which is an example of refraction
¿QUE SON LOS SENTIMIENTOS? *
Answer:
pues es lo que el ser humano siente hacia los demás o ante alguna situación incluidos tristeza, alegría, temor, miedo, odio y amor aunque para mi los dos últimos no deberían ser sentimientos sino una decisión.
what are the role of enzymes in germination of seed
Answer:
Enzymes such as amylase, protease, and lipase are liable for solubilizing spare food material in the form of starch, protein and lipid correspondingly in seed and deliver energy and other fundamentals food material to germinating embryo.
Explanation:
hope this helps you
All cells make the same proteins, true or false
answer:true
Explanation:
Proteins are essential components of our cells, tissues, and organs. Proteins are large molecules with complex structures. Each of the enzymes in our cells are proteins that have specialized functions in the operations of the cells.
What does Kismet do that makes it seem human
Answer:
In order for Kismet to properly interact with human beings, it contains input devices that give it auditory, visual, and proprioception abilities. Kismet simulates emotion through various facial expressions, vocalizations, and movement.
Which of the following statements is false regarding epithelial tissue?
A. exhibits cellularity; a close-packing arrangement
B. has specialized contacts: tight junctions, desmosomes, gap junctions
C. exhibits polarity; has an apical and basal surface
D. epithelial tissue is innervated and avascular
E. has a low regenerative rate
Explanation:
C. exhibits polarity; has an apical and basal surface
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What is the probability of a father with blood type o and a mother with blood type AB producing a child with blood type o?
A. 0%
B. 25%
C. 75%
D.100%
0% chance because blood type O isn't dominant over the others.
hope this helps!!!
Mitosis:
a. takes place only in brain tissue
b. creates cells that are different from each other
c. makes sex cells for sexual reproduction
d. creates identical cells for growth, repair, and asexual reproduction
Answer:
d. creates identical cells for growth, repair, and asexual reproduction
Explanation:
Mitosis is used by somatic, or body, cells; this is how they reproduce. Since the new cells are intended for the same job, they are made identical to the parent. Additionally, mitosis only includes one parent cell so it is asexual. Sexual reproduction occurs through meiosis. Mitosis begins with one parent cell and ends with two identical daughter cells.
If you breathe heavily on a plant, does that increase the rate of photosynthesis?
Answer:
no
Explanation:
they absorb our oxygen by the wind that blows so they can keep alive
Mosquitoes are classic examples of
A.commensalism
B.endoparasite
C.ectoparasite
D.mutualism
Answer:
B.
Explanation:
Endoparasites are parasites that live within the body of its host. Ectoparasites live outside the body of the host. A female mosquito would be an ectoparasite because it lives off of blood by sucking it up from the outside. Endoparasites – Yes, these are inside the host.
All the following stages must occur for a woman to get pregnant. However, after which stage can a woman be described as pregnant?
Answer: The legislation repeatedly refers to that point as "20 weeks after fertilization." Medically, however, a pregnancy is generally "dated" from "gestation," defined as the time of the woman's last menstrual period, because that is a date most women can pinpoint.
Question 8 please help
Answer:
bacterial cell
Explanation:
In general, prokaryotic cells (bacterial cells) are smaller and less complex than eukaryotic cells. They lack membrane-bound organelles (such as mitochondria) and contain a nucleoid region instead of a membrane-bound nucleus. They do have ribosomes, but those are small (70S) and composed of one 30S and one 50S subunit.
Hope this helps
Group - 'C'[4x3=121
12. How much energy is stored when a mass of 70kg is lifted upto
the height of 30m?
Answer:
E = 20580 J
Explanation:
Given that,
Mass of the object, m = 70 kg
It is lifted upto the height of 30 m
We need to find the energy stored when the mass is lifted. We know that, the energy stored by the object is given by :
E = mgh
Put all the values,
E = 70 kg × 9.8 m/s² × 30 m
E = 20580 J
So, 20580 J of energy is stored in the object.
If you were on a hike, which fruit from the graph
would provide the most carbohydrates per
serving?
Carbohydrates (grams)
Apple
Bananas
Grapefruis
Watermelon
Answer: The banana's would have the most carbohydrates per serving because the grams reach 34. All of the other fruit is below 34 grams.
when is the not used before a superlative degree ? some one help me now i have no time
Answer:
The is not used with superlatives in predicative position.
Explanation:
The is not used with superlatives in predicative position, when we compare the same person or thing in different situations. He is nicest in the evenings after he has had a few drinks. (NOT He is the nicest in the evenings …)
Which evidence in the diagram above indicates that a gas was
produced as a result of the reaction?
Answer:
the balloon
Explanation:
leukocytes help to protect the body against disease because it because they produce?
Explanation:
leukocyte cells as neutrophils has the property of phagocytosis. and lymphocytes cells such as B & T lymphocytes in which b-lymphocytes produces antibodies against particular antigen and T Lymphocytes destroy infected cells.
Give one example of drug that is ligand to muscarine receptors
Answer:
Muscarinic Agonists
Scopolamine.
Muscarinic Acetylcholine Receptor.
Eicosanoid Receptor.
Acetylcholine.
Pilocarpine.
Cholinergic.
Carbachol.
Agonist.
This EdPuzzle will teach us about Co-Dominance.
In regular Mendelian genetics, which letter below
is dominant?
H
h
Answer:
H
Explanation:
H is the dominant allele while h is recessive.
There are 3 main stages in the cell cycle *
-True
-False
Answer:
false
Explanation:
this is because
1. the cell increases in size
2. copies its DNA
3. prepares to divide
4. and divides
hope it helps and if it did please heart and mark bainliest.
It’s biology ok I need help with it
Answer:
Increased Pollution
Explanation:
Cancer creates abnormal cells by disrupting
Answer:
New cells take the place of old or damaged cells as they die. Cancer disrupts this process and leads to abnormal growth in cells. It's caused by changes or mutations in DNA. DNA exists in the individual genes of every cell.
Explanation:
Cancer creates abnormal cells by disrupting the cell cycle. The cell cycle is a series of events that cells go through as they grow and divide. It is tightly regulated by a number of genes, and any disruption to these genes can lead to the development of cancer.
There are two main types of disruptions that can lead to cancer:
Mutations in genes that control the cell cycle. Mutations can cause cells to divide uncontrollably, or they can prevent cells from dying when they are supposed to.
Abnormalities in the way that genes are expressed. This can happen when genes are turned on or off at the wrong times, or when they are not expressed at all.
When the cell cycle is disrupted, cells can start to divide uncontrollably. This can lead to the formation of tumors, which are masses of abnormal cells.
Tumors can be benign, meaning that they are not cancerous, or they can be malignant, meaning that they are cancerous. Malignant tumors can spread to other parts of the body, which is a process called metastasis.
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Please HELP FAST!!!!
Research has shown that woolly mammoth populations decreased in a given area as the ecology of the area developed into extensive forests of birch and conifers. This type of vegetation was not favorable for the mammoth and was difficult to digest.
Which position regarding mammoth extinction does this evidence support?
A.
The mammoth became extinct because of overhunting.
B.
The mammoth became extinct because of habitat destruction by humans.
C.
The mammoth became extinct because the climate changed and its habitat was lost.
D.
The mammoth became extinct because mammoth physiology changed with the climate.
Answer:
D. The mammoth became extinct because mammoth physiology changed with the climate.
Explanation:
"ecology of the area developed into extensive forests of birch and conifers" and "not favorable for the mammoth and was difficult to digest." Infers that the mammoth became extinct due to its digestive system rejecting the food that the area provided. It's digestive system required different foods, thus starving them into extinction.
The position regarding mammoth extinction does this evidence support is The mammoth became extinct because mammoth physiology changed with the climate.
What is mammoth ?A mammoth is any species of the extinct elephantid genus Mammuthus, one of the many genera that make up the order of trunked mammals called proboscideans. The various species of mammoth were commonly equipped with long, curved tusks and, in northern species, a covering of long hair. They lived from the Pliocene epoch (from around 5 million years ago) into the Holocene at about 4,000 years ago, and various species existed in Africa, Europe, Asia, and North America. They were members of the family Elephantidae, which also contains the two genera of modern elephants and their ancestors. Mammoths are more closely related to living Asian elephants than African elephants.
The oldest representative of Mammuthus, the South African mammoth (M. subplanifrons), appeared around 5 million years ago during the early Pliocene in what is now southern and eastern Africa. Descendant species of these mammoths moved north and continued to propagate into numerous subsequent species, eventually covering most of Eurasia before migrating into North America around 1.5-1.3 million years ago, becoming ancestral to the Columbian mammoth (M. columbi). The last species to emerge, the woolly mammoth (M. primigenius), developed about 400,000 years ago in East Asia, with some surviving on Russia's Wrangel Island in the Arctic Ocean, as well as possibly the Taymyr Peninsula on mainland Siberia, until as recently as roughly 3,700 to 4,000 years ago, still extant during the construction of the Great Pyramid of ancient Egypt.
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