All cells have:
plasma membraneHope that helps!
Which statement describes seafloor spreading?
O A. Ocean basins grow wider as new oceanic crust forms at a
divergent boundary.
B. Ocean basins grow narrower as one plate is forced downward at a
convergent boundary.
C. Deep trenches form between two plates that are moving away
from each other at a divergent boundary.
D. Deep trenches form where an oceanic plate is forced under a
continent at a convergent boundary.
Answer:
c, deep trenches form between two plates moving away from eachother
Explanation:
because it is
What nitrogen base in found in RNA but not in DNA?
Answer: It is Uracil!
Explanation: In single-stranded RNA, uracil is the only nitrogenous base found. In DNA, it is not found.
Before receiving FDA approval, the tTAV protein had to be tested for any potential toxicities to other native animals. Why would this be part of the approval process?
Given what we know, we can confirm that toxicity testing would be necessary before receiving FDA approval in order to discard the risk of harming future recipients.
Why is this testing important?FDA toxicity testing for potential toxicities native to other animal species can be an essential part of any approval process. This part of the process ensures that the compound in question is free of toxins that not have been noticed in previous tests due to the innate resistance of the animal it was tested on, to begin with. This allows for a more thorough screening process and a safer end product.
Therefore, we can confirm that toxicity testing would be necessary before receiving FDA approval in order to discard the risk of harming future recipients.
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removal of heavy metals from the soil can be done by trees . justify
Prostaglandins play a role in ________. A) skeletal muscle contraction B) control of blood volume C) noninflammatory responses D) control of blood pressure
Prostaglandins play a role in control of blood pressure which is denoted as option D.
What are Prostaglandins?They are referred to as natural chemicals in the body with hormone-like qualities and are involved in arterial pressure regulation.
This enables them control blood pressure through sodium excretion, renin release etc.
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____________ livestock are produced with extra copies of growth hormone genes to allow them to grow faster and produce meat that is low in fat.
Answer:
Transgenic
Explanation:
I did the the usa test prep
If you do more work in less time you have displayed more __
PE
Work
Joules
Power
Answer:
Power or #4
Explanation:
If you do more work in less time you have displayed more Power.
:)
What shape of bone is the pelvic bone?
A. long
B. short
C. irregular
D. flat
In evolution, which driving factor most consistently requires a small population as a precondition for its occurrence?.
Answer:
Genetic drift Natural
Explanation:
In evolution, which driving factor most consistently requires a small population as a precondition for its occurrence? Genetic drift Natural In evolution, which driving factor most consistently requires a small population as a precondition for its occurrence? Genetic drift Natural selection Nonrandom mating Mutation.
In evolution, Genetic drift is the driving factor which most consistently requires a small population as a precondition for its occurrence.
What is Genetic Drift?A change in the relative frequency of alleles within a population is an example of genetic drift. Natural selection, often known as the differential survival and reproduction of individuals across a population as a result of differences in phenotype, is one of the possible causes of this phenomenon.
Natural selection gives an advantage to some characteristics in a population, which results in certain individuals being able to reproduce while others, who have characteristics that give them a disadvantage, will provide their genes to subsequent generations. This will ensure that the allelic frequency of each successive generation will be distinct from that of the parent group.
Therefore, a subpopulation may become genetically diverse from its parent population due to genetic drift.
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Look at the following diagram of the carbon cycle:
An image of carbon cycle is shown. The sun, a cloud, two trees, one on the left and the other on the right, an animal, lake, and a factory are shown in the image. An arrow is shown from the sun towards the left tree marked A. The sun is marked B. There is an arrow from the air above the clouds, marked C, towards the left tree. An arrow from a location close to the ground marked D points towards Dead Organisms, which is a label under the animal. An arrow marked E points from the right tree straight up to the clouds. An arrow marked F points from the animal straight up to the clouds. An arrow marked G points from the factory towards the air above the clouds, C. There is an arrow pointing from the air to the lake labeled Carbonates in Water, an arrow pointing down from dead organisms to Fossils and Fossil Fuels, and an arrow from Fossils to the factory.
Which part of the carbon cycle is represented by arrow E?
Decomposition
Animal emissions
Plant respiration
Photosynthesis
Answer:
The third option: Plant Respiration.
Explanation:
What is the first part of an experiment and
becomes the basis of what you are testing?
A. the results of the experiment
B. the dependent variable
C. a hypothesis
D. the control group
When homologous chromosomes fail to separate during meiosis, this is termed:.
Answer:
Nondisjunction
Explanation:
Nondisjunction is the failure of homologous chromosomes (chromatids) to separate properly during meiotic cell division.
hope this helps
pls mark brainliest
Bacteria in the _____ intestine produce vitamins, such as b and k.
Answer:
bacteria in the large intestine
Which process of a neuron is specialized for rapid conduction of nerve signals to structures relatively far away from the neuron cell body?.
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I hope it will help you.hello people ~
The outermost and innermost wall layers of microsporangium in an anther are respectively
(a) endothecium and tapetum
(b) epidermis and endodermis
(c) epidermis and middle layer
(d) epidermis and tapetum
Answer:
The wall layers of a microsporangium from outermost to innermost are: epidermis, endothecium, middle layers and tapetum. The first three layers generally provide protection and help in dehiscence of anther. Tapetum performs nutritive function for pollen grains.
Answer:
Epidermis and tapetum
Explanation:
There are usually four layers located
epidermisendotheciummiddle layertapetum.epedermis ann endothecium are the outer layers which provide support to innner most .
So option D is correct
a nucleotide consists of what three parts?
WILL GIVE BRAINLIEST IF UR RIGHT! PLEASE HELP and thank you?
Which activity would be carried out by a conservation biologist?
conduct survey of a species population in an ecosystem
pass laws restricting pollution
enforce a law restricting the catch of a commercial fishing vessel
purchase land for a conservation easement
Answer:
It would probably be "conduct survey of a species population in an ecosystem"
Which type of fossil do scientists use to compare the relative ages of other fossils?.
Answer:
Index Fossils
Explanation:
Index fossils are used by scientists to help them figure out the dating of discovered fossils or the correlation. They are also very known to appear in a (very) certain/specific age range.
Hope this Helps!
The fin of a tuna and the flipper of a dolphin are:.
calculate the surface area of a sphere with a radius of 2 meters
Answer:
16[tex]\pi[/tex]
Explanation:
the surface area of a sphere is 4[tex]\pi[/tex]r^2
so r as 2 would mean the surface area is 16[tex]\pi[/tex] or about 50.265 meters squared.
To meet the definition of polyuria, the minimum daily output of urine is __________.
If the 46 chromosomes are duplicated during interphase, why are there
still 46 chromosomes and not 92?
Before I talk about why there are still 46 chromosomes, I'll just review the basic chromosome structure. Each chromosome has a chromatid, with one centromere in the middle.
Chromosomes aren't counted by how many chromatids there are, but rather how many centromeres. When DNA duplicates, the chromatids replicate themselves, so each chromosome ends up having two sister chromatids joined at the same centromere.
There is the same number of centromeres in the cell, so there are still technically 46 chromosomes. However, there are 92 chromatids.
This used to be confusing for me too :) hope it helps!
(B.4A) The major difference between prokaryotes and eukaryotes is the presence or absence of the following:
cell membrane
membrane-bound organelles
cytoplasm
nucleic acids
The major difference between prokaryotes and eukaryotes is the presence or absence of membrane-bound organelles.
What are eukaryotic and prokaryotic cells?Eukaryotic cells are cells that possess a membrane-bound nucleus and organelles while prokaryotic cells do not contain a membrane-bound nucleus or organelles.
Examples of eukaryotic cells are;
Plant cellsAnimal cellsProtist cellsExamples of prokaryotic cells are;
Bacteria cellsThe membrane bound organelles that differentiates prokaryotes from eukaryotes are as follows:
ChloroplastMitochondriaEndoplasmic reticulumNucleusTherefore, the major difference between prokaryotes and eukaryotes is the presence or absence of membrane-bound organelles.
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list 3 differences between sun leaves and shade leaves
Answer:
Partial sun is between four and six hours of sun a day. Partial shade is two to four hours of sun per day. Shade, in gardening terms, means less than two hours of sunlight a day. Leaves which grow in the shade ('shade leaves') are generally larger in area but thinner than leaves which grow in full sunlight ('sun leaves'). Sun leaves become thicker than shade leaves because they have a thicker cuticle and longer palisade cells, and sometimes several layers of palisade cells.
A student studies an inheritance shown in the pedigree. The shaded figures represent organisms that display the inherited traits. If the inherited trait is autosomal dominant represented by ‘A’, what is the genotype of the male parent?
A) aa
B) Aa
C) The first allele is A, but we don’t know what the second allele is.
D) AA
Answer:
its option A
Explanation:
* our skin can be compared to what cellular organelle? explain.
Please help! Due in 5 minutes!
An articulated specimen refers to
A. a skeleton that is intact.
B. a skeleton undergoing mechanical preparation.
C. a skeleton treated with iron reduction.
D. a skeleton that is incomplete.
Answer:
A. a skeleton that is intact
Explanation:
Answer:
A
Explanation:
How does the Siamese fighting fish deal with living in shallow, oxygen poor water?
Explanation:
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46565746447754
For this testable question write a proper hypothesis and identify the variables.
A truck driver wants to find out if there is any relationship between the amount of gas he uses per kilometer and the speed that he's going.
In vertebrates, which structure frequently serves as the first intermediary between the areas of the brain that perceive sensory stimuli and the rest of the endocrine system?.
Explanation:
sorry, I may use old terms; I believe it is at the hypothalamus, for endocrine system...
