Answer:
False.
Explanation:
Transitional forms are species in their own right. They are called transitional forms because they possess traits, like fins, that are found in earlier fossil animals, but also possess traits, like limb bones, that are found in later fossil animals.
hope i helped:)
How can gene flow, genetic drift, and natural selection all influence macroevolution?
Answer:
Macroevolution refers to large-scale evolutionary changes that break the species barrier and can give rise to new species and even affect higher taxonomic groups.The basic evolutionary mechanisms migration, genetic drift and natural selection can produce important evolutionary changes if given enough time.Large groups and macroevolutionary trends originate in gradual, adaptive stages, as a product of natural selection acting at the level of individuals , but operating for much longer periods of time.All depends on the mutations originating new alleles or genes, which imply the existence of very different characters from the pre-existing ones, and that these different characters are selected because they imply a better adaptation to the environment.
Explanation:
Macroevolution refers to the evolutionary changes that occur on a large scale, such as the genesis of high-ranking taxonomic groups: the appearance of species within their taxonomic groups, the appearance of evolutionary trends, the acquisition of anatomical characteristics that characterize the groups.For there to be an evolutionary change, then, new properties must emerge that constitute a new species. Evolution is a process of changes at the species level, distinct from those that occur in each individual organism. Gene flow is the transfer of alleles of genes from one population to another. Contributes to variation and diversity of individuals. Evolution is then the change of allelic frequencies over time.Macroevolution takes place through the process of natural selection, that is, the differential reproduction of individuals, and adaptive improvement over a very long period of time. This type of evolution is based on interpreting the appearance of new species or large groups, as well as mass extinctions, with the subsequent proliferation of new groups. The evolutionary changes that determine the origin of body plans are based on macromutations on which natural selection acts.
Costa Rica, located in Central America, features a very high level of biodiversity due to its tropical climate and large range of habitats. As a result, Costa Rica has endless examples of population interactions lurking in its rain forests. Read about three of these interactions, and then complete the sentences that follow. SlothTickCoral snake Brown-throated sloths (Bradypus variegatus) are tree-dwelling mammals and one of the least active animals on earth. Sloths spend most of their time sleeping or eating young leaves from the trees they live in. The interaction between the sloths and the leaves they eat is an example of a relationship. In this example, sloths are that acquire their nutrients and energy from the they eat. The colors of coral snakes provide these animals with to avoid predation. Specifically, their coloration helps them . The interaction between the hosts and the ticks that live on them can be characterized as , because .
Answer:
The interaction between the sloths and the leaves they eat is an example of a predator-prey relationship. In this example, sloths are herbivores that acquire their nutrients and energy from the plants they eat. The colors of coral snakes provide these animals with mimicry to avoid predation. Specifically, their coloration helps them advertise their toxicity. The interaction between the hosts and the ticks that live on them can be characterized as parasitism, because one species feeds on the other.
Explanation:
Predator-prey relationships are those in which a specie feeds on another specie. The sloth is the predator that feeds on the leaves which are its prey. Herbivores feed on plants. Therefore, the sloth are rightly classified as herbivores.
Coral snakes are brightly colored with red, yellow, and black patches that warn potential predators of their toxicity. Ticks living on hosts are parasitic because the ticks feed on their host.
Using genetic code table translate this mRNA sequence. AUG CUU AAG GGU CGU CAU UAG.
Answer:
Explanation: g
1. Which statement best describes conservation?
A. use of natural resources
B. maintaining the life of ecosystem
C. wise use and preservation of resources
D. utilizing of earth's resources
2. Which human activity contributes to the destruction of forest?
A. reforestation
B. deforestation
C. protecting the forest against harmful activities
D. all of the above3. The following are ways to conserve Earth's resources, which one is NOT?
A proper waste disposal
B. reduce air and water pollution
C buy products made from animals
D. help raise funds for environmental conservation
4. Which of the following destroys coral reefs?
A building man-made fish sanctuaries
B. dynamite fishing
C waste dumping
D. both B and C
5. Ecosystem is an environment where both living and non-living
things exist and
with one another
A disagree
B. interact
C. compete
D. disconnected
1. Which statement best describes conservation?
C. wise use and preservation of resources
2. Which human activity contributes to the destruction of forest?
B. deforestation
3. The following are ways to conserve Earth's resources, which one is NOT?
C. buy products made from animals
4. Which of the following destroys coral reefs?
D. both B and C
5. Ecosystem is an environment where both living and non-living things exist and with one another
B. interact
Conservation is the careful protection and preservation of the environment. Option C is correct.
The activity of man that leads to the deforestation of the forest lands is deforestation. Hence the option B is correct. The conservation of the earth's resources depends on many factors but it does not on buying products made from animals. Hence the option C is correct. The factors that destroy the coral reefs are B and C that are waste dumping and dynamite fishing. The ecological unit of the ecosystem includes the biotic and abiotic forms in order to interact with each other. Hence the option B is correct.Learn more about the best describes conservation.
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Can anyone answer this question?
Answer:
D, sperm contains only 23 (to be combined with the egg which has 23 chromosomes too)
In humans, there is a dominant allele that causes vitiligo, where small-unpigmented spots appear on the body. Also, there is a recessive allele for another gene that caus- es albinism, which causes the entire body to be unpig- mented. Vitiligo cannot be seen in albinos. A man with vitiligo had an albino mother and normal father. If the man has a child by a phenotypically normal skinned woman who had an albino father, what is the probability of having a phenotypically normal child
Answer:
probability = 0
Explanation:
The probability of having a phenotypically normal child is = 0
This is because since the Paul has Vitiligo and the vitiligo ( allele ) is a dominant allele and hence the allele will be passed onto the Child ruling out the chance of the couple having a phenotypically normal child
All of the following are examples of convection currents, except
Answer:C, water flowing through pipes
Explanation:the answer is C because convection is when molecules are traveling from one place to another place instead of jiggling back and forth, so when water flow through the pipe it’s the substance that is moving which makes it wrong and an answer!
Answer:
C
Explanation:
Match each stem or root to its description.
Fibrous
Herbaceous
Taproot
Woody
What Relative Dating technique refers to missing rock records?
Answer: Fossils and relative dating
Explanation: Land and rock experts have studied the order in which (things in rocks that lived a long time ago/old, outdated things) appeared and disappeared through time and rocks. This study is called biostratigraphy.
Answer:
Give that guy brainly ^
Explanation:
:)
PLSSS IM BEGGING
Where do producers get energy to make sugars?
The air
The sun
Their food
The soil
Melting glaciers is a serious threat to the environment. What is the possible consequence of melting glaciers on polar bears?
A.
The polar bear population will increase.
B.
Polar bears will migrate to southern areas.
C.
Polar bears will migrate to northern areas.
D.
Polar bears will thrive successfully.
Polar bears will migrate to southern areas. Thus the correct option is B.
What is climate change?Climate change refers to long-term shifts in temperatures and weather patterns. These shifts may be natural, such as through variations in the solar cycle.
Due to global warming many species become vulnerable to climate change. One such species is polar bear. Polar bears live in arctic region and this region is getting warmer due to climate change. Warming of arctic region results into melting of sea ice.
Existence of sea ice is important for the survival of polar bears because seals are the main food of the polar bear and they hunt seals on the sea ice. Therefore, without sea ice, polar bears cannot hunt enough seals to eat thus, it will be difficult for them to survive.
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As a plant grows, new root hair cells are formed from unspecialised cells.
How does an unspecialised cell become a new root hair cell?
Answer:
Root hairs appear in the root maturation zone and differentiate from unspecialised cells called trichoblasts.
Explanation:
Root hair arises as a small protrusion surrounded by a cell wall, they are found in the piliferous area; they can originate in unspecialised epidermal cells, in some called trichoblasts. The bump begins to elongate and moves away from the epidermis, forming root hair. The root hairs as they lengthen, it is seen that their content shows a polarized distribution, the apical part is constituted mainly by vesicles secreted by the Golgi apparatus that contain the precursors of the cell wall that are to be released by exocytosis. Trichoblasts can be arranged in different ways, there are roots where any of the cells that are part of the rhizodermis can give rise to a root hair. In other roots, trichoblasts and atricoblasts have been seen to be distinguished alternately along a row of cells.
Which of the following characteristics only pertains to chloroplasts?
Answer:
Chloroplasts are a type of plastid—a round, oval, or disk-shaped body that is involved in the synthesis and storage of foodstuffs. Chloroplasts are distinguished from other types of plastids by their green colour, which results from the presence of two pigments, chlorophyll a and chlorophyll b.
Explanation:
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The nucleus of an atom comprises of _______________ and _______________
Answer: protons and neutrons
Explanation:
Answer:
positively charged protons and neutral charged neutrons.
Explanation:
PLS PLS PLS PLS HELP ASAP DUE RIGHT NOW PLSSS
Which arrows show matter moving from a producer to an omnivore? Select all that apply.
A. The arrow between the phytoplankton and the clam
B. The arrow between the rockskipper and the peacock flounder
C. The arrow between the phytoplankton and the rockskipper
D. The arrow between the macroalgae and the triggerfish
E. The arrow between the macroalgae and the damselfish
Answer:
macro one and tiger fish
Explanation:
i think im right because the tiger fish eats both plants and animals
Scientists believe that there are three jeans what contribute to skin color in humans.
Which of these best describes the inheritance pattern of skin color?
A. Multiple allele in which offspring recessive three allele from each parent.
B. Multiple allele in which offspring recessive three allele from only one parent.
C. Polygenic in which offspring recessive three allele from each parent.
D. Polygenic in which offspring recessive three allele from only one parent.
Answer:
C. Polygenic in which offspring receive three allele from each parent.
Explanation:
In genetics, a polygenic inheritance is an inheritance that involves more than one gene i.e. more than one gene controls a particular trait. This is the case of the skin color trait in humans, which is controlled by three genes.
However, since each gene contains two alleles, each parent will contribute three alleles for the three genes to the development of an offspring i.e. three alleles from the father and three from the mother will result in three genes in the offspring, each containing two alleles.
Answer:D
Explanation:
A group of beetles live in forest with medium brown tree trunks where these beetles like to hide. Most of the beetles are medium brown, but about 10% are grey. This beetle species is often prey for large birds that live in the forest. A new coal fired power plant opens in the area and the trees become covered with a layer or grey ash. What do you predict will happen to this beetle population
Answer:
it will decrease with cause of power plant
Explanation:
How organisms get ATP out of the food they eat
Question 4
Place the following in correct developmental sequence:
1. reticulocyte
2. Proerythroblast
3. hemocytoblast
4. erythroblast
3.2.4.1.
3.1.4.2.
2.3.4.1.
2.1.3.4.
.3.1.4.2
-3. hemocytoblast
-1. reticulocyte
-4. erythroblast
-2. Proerythroblast
Local factors are important for regulating blood flow to tissue capillary beds. For example, in skeletal muscle tissue that is actively contracting, levels of oxygen start to decrease as the oxygen is utilized, and levels of carbon dioxide increase as it is produced during cellular respiration. Decreasing levels of oxygen in the tissue cause the smooth muscle forming sphincters in arterioles to relax.
Answer:
true
Explanation:
In smooth muscle contraction, the sphincters relax in the face of the drop in partial tissue pressure of oxygen, and the increase in protons or positively charged hydrogen molecules. In this way, when the sphincter relaxes, the easier and faster contraction of an autonomous and simultaneous nature is conducted.
3.
A behavioral adaptation when an animal becomes inactive in the winter is _____.
camouflage
migration
sleeping
hibernation
hey guys so my sister wants a pet now and she is 14 she got a frog for herself but we returned cause i had to take car od it and it wasent fair for me what should i do she also wants to kinda take my frogs awau from me i spent my har earned money im 12 i takee care of them and they were for my burthday i spent my whole saving on them what should i do
Answer: Tell her that they are your frogs and that she should have taken care of them. And not to take her frogs or i will (expose and seceret to your family or somthing) Or just tell her to get a job and buy her own frogs and take care of them. Tell you mom and dad to> like its not your fault and tell them whats going on. You should try getting a snake or a hamster next. or spider.
Explanation:
How much of the world does the tropical rainforest biome currently cover?
Answer:
13 percent
Explanation:
give me the definition of natural selection
a natural process that results in the survival and reproductive success of individuals or groups best adjusted to their environment and that leads to the perpetuation of genetic qualities best suited to that particular environment
Hi, please help me (it’s science)
The diagram models a hypothesis situation in which every location on earth would have 12 hour of daylight and 12 hours of darkness per day is earth orbit is perfect circle. Hence option B is correct.
What is hypothesis?Hypothesis is defined as a concept or assumption put forth for the sake of discussion and examined to see if it might be true. A hypothesis is seen as a wise guess or prediction that points the researcher in the right path as they attempt to respond to the research topic.
Earth rotates on its axis, or turns, once every 24 hours, carrying us all along with it. When we are on the side of the Earth that faces the Sun, we experience daylight. We are now on the side of the Earth that faces away from the Sun, and night has fallen.
Thus, the diagram models a hypothesis situation in which every location on earth would have 12 hour of daylight and 12 hours of darkness per day is earth orbit is perfect circle. Hence option B is correct.
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Describe the difference between aerobic and anaerobic respiration;
including the steps, the amount of ATP produced in each step, and total
amount produced.
Answer:
aerobic respiration uses oxygen and the steps are: 1. glycolysis 2. Krebs cycle 3. oxidative phosphorylation
anaerobic respiration does not use oxygen and the steps are: 1. glycolysis 2. alcohol fermentation
Explanation:
I do not know the other 2
1. Why is California at hingher for earthquakes than North Dakota
Answer:
because California is located on the San Andreas Fault
Explanation:
California is one of the states that have higher seismic activity because it lies on an individual fault known as the San Andreas Fault. Faults are regions where two tectonic plates are moving with respect to one another, thereby they are prone to suffer earthquakes. The San Andreas Fault is a continental fault that extends approximately 800 miles (1,200 kilometers) through the US state. Conversely, earthquakes in North Dakota are uncommon because this state is located in the middle of a tectonic plate. The last earthquake in North Dakota had a magnitude of 3.3 (Richter Scale) and it happened almost 10 years ago (2012), in Williston.
Animals like elephants
consume these plants. Which
of these process(es) do
animals also do?
The given question is incomplete as it lacks the options required to answer the question, however, options for the question is as follows:
A. Photosynthesis
B. Cellular respiration
C. both A and B
d. None of the above
Answer:
The correct answer is - option A. cellular respiration.
Explanation:
Plants produce their food or glucose with the help of the photosynthesis process. Plants called autotrophs as they generate their food on their own whereas animals depend on plants and other animals for their food and energy.
Plants and animals both perform cellular respiration in order to convert the food or glucose to the useable energy form that is known as ATP. Cellular respiration converts glucose into energy and releases carbondioxide and water.
The animals have the process of the Cellular respiration, to produce energy from the food they eat.
Cellular Respiration:
It is the process by which all organism perform to generate energy as ATP from the Glucose and produce Carbon dioxide as by product.
Cellular Respiration uses Oxygen and glucose as reactant to produce ATP.It is occur in the mitochondria. Photosynthesis is not found in animals as they lake Chloroplast.Therefore, the animals have the process of the Cellular respiration.
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Which of the following does not explain why if two people are exposed to the same high stress causing conditions, there is a likelihood that they will not be affected the same way? A) the two have different lifestyles B) some people are not at all affected by stress C) gene-environment interactions may affect the level of depression D) people react differently to stress E) presence of a specific gene variation
Answer:
Probably B
Explanation:
They all explain it, honestly, but B sounds the least like an answer they would accept as true. It's also kind of sus that they have 2 different answers about reacting differently to stress, and B is definitely the least likely of the two to be correct. Sorry I couldn't be more helpful, I'm only here because I searched for the answer myself. Good luck.
When energy is changed from one form to another with very little loss, the process is said to be
A) efficient
B) advantageous
C) transformed
Or d) excellent
Answer:
A
Explanation:
Efficiently