Answer:
after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago.
Explanation:
the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.
Answer:
You are correct
Explanation:
According to the geological time scale, mammals evolved after the first insects evolved.
Which of the following is NOT found in tRNA?
Group of answer choices
Adenine
Cytosine
Thymine
Uracil
Answer:
Thymine i think
Why can smaller cells diffuse oxygen and nutrients at a faster rate?
small surface area to volume ratio
large surface area to volume ratio
large surface area
more volume than surface area
Answer:
A further increase in the size of a cell could result in a surface area too small for adequate exchange of materials.: A large surface to volume ratio means that a small amount of living matter has a large surface through which nutrients, oxygen and wastes can diffuse.
Animals in a South American rain forest and
plants in an African desert both belong to the
Answer:
Tropical rainforest
Explanation:
Tropical rainforest, luxuriant forest found in wet tropical uplands and lowlands near, members of the Canellaceae are shared between South America and Africa, and two In regions lying between the wet tropics and the deserts, climatic zones
Keeping track of what you earn, spend, and save are they key parts of a _____.
When molecules of a gas or liquid move from greater concentration to a
lesser concentration through a selectively permeable membrane. This is
called.... *
Diffusion
Plasmolysis
Osmosis
Concentration gradient
Answer:
Osmosis
Explanation:
Osmosis is the diffusion of water or gas molecules, from a region of higher concentration to a region of lower concentration, through a partially permeable membrane
Diffusion is the net movement of anything from a region of higher concentration to a region of lower concentration.
Plasmolysis is the process of shrinkage or contraction of the protoplasm of a plant cell as a result of loss of water from the cell.
The difference in the concentration of a substance between two areas is called the concentration gradient.
When a new strain of virus is discovered, what must scientist first do to prevent the spread
-identify the symptoms that people develop due to the strain
-work on an effective vaccine to help prevent the spread of the virus
All of the images below were taken using a microscope. Which of these photos shows cells?
Image by Umberto Salvagnin
COMPLETE
Answer:
It is all of them
Explanation:
just did it on edge!
Answer:
A,B,C
Explanation:
I got it right.
Which of these is a characteristic of a sustainable city?
A. Efficient mass transit between suburbs and the city center
B. Few green areas located near the city center
c. Strict zoning that prevents residential areas from being located near
business areas
Х
D. Well-maintained roads that prevent the need for too much walking
Answer:
B
Explanation:
Answer:
A
Explanation:
answer is a I had to learn the hard way
What are the kingdoms of life that scientists use to classify organisms?
A. Bacteria, Protista, Fungi, Plantae, Animalia, Phylum
B. Archaebacteria, Phylum, Family, Plantae, Animalia, Eubacteria
C. Eubacteria, Archaebacteria, Protista, Fungi, Phylum, Species
D. Eubacteria, Archaebacteria, Protista, Fungi, Plantae, Animalia
Answer:A
Explanation:
Organisms are classify on the basis of kingdoms Bacteria, Protista, Fungi, Plantae, Animalia, Phylum. Therefore, option (A) is correct.
How do we classify organisms?Organisms can be classified according to any number of criteria, including overall similarities, colors, ecological functions, etc. However, it is generally agreed that the most useful way for scientists to organize biological diversity is to group organisms according to shared evolutionary history.
It is divided into phyla or divisions, which are further subdivided into classes. Further divisions include order, family, genus and species, in that order. Thus, species is the basic unit of classification.
Organisms are usually grouped together based on their unique characteristics. The classification of an organism often provides useful information about its evolutionary history and which other organisms are related to it.
Learn more about classification of organisms:
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Your collar bones are _____________ to the navel.
a. Lateral
b. Inferior
c. Superior
d. Medial
Which statements are true of white blood cells? Check all that apply
A. They are called leukocytes
B. They carry carbon dioxide
C. They contain hemoglobin
D. They protect against infection
Answer:
1,4
Explanation:
Edge
Answer:
They are called leukocytes.
They protect against infection.
Explanation:
Which organelle is generally larger in plant cells than in animal cells?
A mitochondrion
B. nucleus
C. ribosome
D. vacuole
Answer:
D.VACUOLE
Explanation:
Which one do I choose
Answer:
C
Explanation:
Which best describes how heat energy move within a system?
4. Which human activity would (NOT) be classified as one that can harm
water source?*
O A. water pollution
B. waste of water resources
C. using sustainable ways to grow crops
If the wind was the same all across Earth, which ocean would have the largest waves?
Group of answer choices
A. Atlantic
B. Pacific
C. Indian
D. Southern
Pacific
A
That is the answer
Pls can someone help me out by answering these
Answer:
the diagram is not clear enough.
Answer:
A,C,D
Explanation:
( I NEED THE ANSWER ASAP PLEASE!).
A population of rodents lives in one species of pine tree. They have a commensalistic
relationship with the tree; they use it for protection & housing & the tree is not affected. These
pine trees have very evenly spaced branches of uniform thickness. Rodents that are too small
cannot reach between the branches to move around in the tree. Rodents that are too big and
heavy break through the branches and fall out of the trees. The rodent population that is very
uniform in size have become more populous.
9) Explain how this is related to natural selection. Make sure to include a cause and an effect
within your explanation.
a) How is this related to Natural Selection? (2 points)
b)What has caused the mice population to shift to uniform sized mice? (1 point)
c)What is the effect of this population shift?(1 POINT)
Answer: I’m not sure but it relates to natural selection because the rodents depend on the tree for survival and the tree is neither harmed or benefited from the rodents the cause and affect is the rodents stay in the tree and the tree is neither harmed or benifited. Pls do not rely on my answer I’m just saying what I think
Explanation:
Whats the name of this flower?
Answer:African lily
Explanation:
Just searched it
FILL IN THE BLANK!!!
genotype is the____pair of alleles (TT)____of an organism. And phenotype is the____apperence__of an organism
Answer:
THIS IS IT
Explanation:
The genetic makeup of an organism (ex: TT). Phenotype, The physical ... from each parent). This pair of alleles is called a genotype and determines the organism's appearance, or phenotype. ... A Punnett square can be used to predict genotype and phenotypes of offspring from genetic crosses
Which of the following do plant cells have, but animal cells do not have?
Answer:
Animal cells each have a centrosome and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas animal cells do not.
If a population size begins to_______rapidly, this can be a signal that extinction is coming.
Answer:
decreases
Explanation:
any decrease in the population can lead to a signal of extinction
any increase is result of rapid growth
helppp, i need this asap
The diagram that explains the crossing over in the following diagram is option C, as here the crossing over takes place and the chromosomes exchange their genetic materials and can later produce the gametes.
What exactly is the significance of the cross-over in meiosis?Crossing over is important in meiosis because it occurs when homologous chromosomes exchange genetic material, resulting in the formation of new combinations of genetic information and increasing genetic diversity in the population. As a result, evolution occurs, and unique offspring are produced.
Hence, the diagram that explains the crossing over in the following diagram is option C, as here the crossing over takes place and the chromosomes exchange their genetic materials and can later produce the gametes.
Learn more about the cross-over in meiosis here.
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Why are the best index fossils from species that only existed for a short period of time ?
Answer:
Because once they were very common they disappeared after the mass extinction event. ... Many geologic periods were defined by events that made natural boundary to the period.
Answer: Because once they were very common they disappeared after the mass extinction event.
Explanation: Hope this helppssss!!! :)
—————. Are small round structures in cells that break down large food particles into smaller ones
Answer:
Lysosomes
Explanation:
Lysosomes also break down old cell parts and release the substances so they can be used again.
Propose an explanation as to
why beta cells would have a
greater concentration of rough
endoplasmic reticulum and
ribosomes than some other cell
types.
Answer:
The intense and constant activity of insulin synthesis explains why pancreatic beta cells possess more rough endoplasmic reticulum and ribosomes than other cells.
Explanation:
Both ribosomes and the rough endoplasmic reticulum are necessary for protein synthesis to occur. In cells whose function is to produce substances, such as glands, the content of these cellular structures is higher in order to fulfill their function.
The pancreatic beta cells, located in the islets of Langerhans, have the function of synthesizing insulin, an endocrine hormone in charge of regulating the glucose content in the blood. Because the beta cells constantly produce insulin, their content of rugged endoplasmic reticulum and ribosomes is high, in order to satisfy the demand for this hormone in the body.
Casimir recently purchased an old car. He notices the rims have some spots of rust on them. So, he goes to an automotive shop and chooses a product that is recommended for removing rust. Which acid is most likely to be found in the product? hydrofluoric acid sulfuric acid hydrochloric acid nitric acid
Answer: Hydrochloric acid
Explanation:
edge 2021
Answer:
Just here confirming that the answer is hydrochloric acid.
Explanation:
How are genetic relationships represented?
Answer:
Genetic relationships are analysed based on the comparison of allelic identity or differences, regardless of the number of SNPs that differ between two alleles of a gene, which simplifies the analysis.
Explanation:
Insect 1 : Vespula flavopilosa
Insect 2: Vespula rufa
Insect 3: Callicera rufa
(a) Insects 1 and 2 are more closely related to each other than to insect 3.
(i)Explain how the binomial names indicate that insects 1 and 2 are more closely related.
(i)Explain how the appearance of the three inswcts suggest that insects 1 and 2 are more closely related.
HELPPP I NEED TO KNOW NOWWWW!!
Note:
In the attached files you will find the image of the three insects
Answer:
(i) Because they share the same genera, Vespula.
(ii) Because Morphologically, insects 1 and 2 are more alike than insect 3.
Explanation:
(i) Explain how the binomial names indicate that insects 1 and 2 are more closely related.
In taxonomy, many categories are used to aggregate organisms according to their evolutive relationship. These are Domain, Kindom, Clase, Order, Family, Genera, Species, Subspecies. All species might be recognized by their common name and their scientific name, which is more reliable. The binomial names of living beings indicate the scientific name by which the organisms can be recognized. A species scientific name is composed of two parts:
- Generic name or genera: correspond to many species that share common characteristics. In the example, Vespula is the genera
- Specific epithet: useful to identify each species in particular and differentiate organisms that are included in the same superior taxes. In the example, flavopilosa and rufa are the epithets that differentiate one species from the other.
According to this, we might assume that species 1 and 2 are more closely related because they share the same genera: Vespula. This suggests that they share more characteristics in common with each other than with Callicera.
(ii) Explain how the appearance of the three insects suggests that insects 1 and 2 are more closely related.
Morphologically, insects 1 and 2 are more alike than insect 3. Traits such as body shape, pigmentation pattern, antenna, wings, total body size, among others, are very similar in species 1 and 2. On contrary, species 3 is smaller, with a thinner antenna, different pigmentation patterns, different wings size and shape.
Which statement about the inheritance of blood types in humans is most likely to be correct?
- Type O is dominant to both Type A and Type B
- Type B and Type O are co-dominant to Type A
- Type A and Type B are co-dominant to Type O
- Types A and O are co-dominant to Type B
Answer:
Type b and a my answer promise copy this now
Explanation: