Answer: B and E
Explanation: USATESTPREP
An organ that makes and secretes hormones is called a
1] lung
2]gland
3]pancreas
4]thyroid
Answer: 2]gland brainliest?
Explanation:
As a result of the experiment scientists did with Mexican tetras, it seems likely that their first hypothesis about blindness in the tetras is right. Explain how the result of the experiment supports their first hypothesis.
The scientists' first hypothesis is that blindness gives the fish some sort of evolutionary advantage, but not directly.
The experiment was: The scientists transplanted a lens from the eye of a surface tetra embryo into the eye of a cave tetra embryo. The result was striking—the surface tetra lens into the cave tetra caused all of the surrounding tissues to develop into a healthy eye.
A result that supports the hypothesis 'blindness gives the fish some evolutionary advantage, but not directly' may be a higher fitness in close relatives of fish.
What is a hypothesis?An scientific hypothesis is a given explanation to a scientific observation from the real world.
A hypothesis must be verifiable, which means that it can be confirmed or rejected by using the scientific method.
In conclusion, a result that supports the hypothesis 'blindness gives the fish some evolutionary advantage, but not directly' may be a higher fitness in close relatives of fish.
Learn more about hypotheses here:
https://brainly.com/question/11555274
#SPJ1
Someone please bro me !!
Answer:
i think the answer is b.
Explanation:
tell me if this is incorrect
Answer:
The second one
Explanation:
A thesis statement is usually at the end of an introductory paragraph. The sentences that precede the sentence will introduce it, and the sentences that follow will support and explain it.
Give at least two gases in the atmosphere that you need to survive. Describe an example of why you need these gases to survive. (10pts)
A biologist counts the number of rabbits in a population each year and observes a decrease in population. Since the coyote population has exploded, the biologist concludes that the coyote population has had a negative impact on the rabbit population. Which describes the biologist’s actions?
experimentation
inference
observation
interacting
Answer:
Inference
Explanation:
edg 2021
Answer:
inference
Explanation:
I got it correct on teams
How are animals in the polar dying connected to climate change?
help
Answer: well, ce dependent species such as narwhals, polar bears, and walruses are at increasing risk with shrinking sea ice cover. ... As the Arctic loses snow and ice, bare rock and water absorb more and more of the sun's energy, making it even warmer. This is called the albedo effect.
Explanation:
Which statement best describes the relationship between ocean co2 and ph
Acidity rises and pH falls as carbon dioxide levels rise. The correct option is C.
What is ocean pH?A change in the characteristics of ocean water known as ocean acidification may be detrimental to plants and animals.
Scientists have noticed that the ocean's acidity is rising as a result of the water's absorption of atmospheric carbon dioxide.
Ocean acidification is the decrease in the ocean's pH level. The average pH of the ocean's surface fell from about 8.25 to 8.14 between 1751 and 2021.
Ocean water is more basic than drinking water because it is resistant to pH fluctuations due to the presence of various weak acids and their corresponding bases, or buffers.
The ocean is regarded as having a pH that is slightly alkaline. Acidity and pH both drop when carbon dioxide levels rise.
Thus, the correct option is C.
For more details regarding ocean acidification, visit:
https://brainly.com/question/1498307
#SPJ2
Your question seems incomplete, the missing options are:
When CO2 increases, pH increases and acidity decreases.
When CO2 increases, pH decreases and acidity increases.
When CO2 increases, pH decreases and acidity decreases.
There is no relationship between CO2 and pH
What process contains the enzymes that break the chemical bonds in your food in order to create usable energy?
Answer:
Cellular respiration
Explanation:
This is because cellular respiration is an aerobic process where the chemical bonds in food are broken down to release energy. This process produce energy which are useful for the body cells. Cellular respiration help to break down glucose. Glucose and oxygen are converted to carbondioxide and water and energy is released which form ATP.
A father sheep has curly wool while a mother sheep has straight wool. Which of these statements explains why one of their baby lambs has curly wool?
Answer:
This means that the baby sheep received the same set of genes as the father sheep giving it curly wool.
Explanation:
This means that the baby sheep received the same set of genes as the father sheep giving it curly wool.
OR if the baby sheep received a mixed set of genes , one from father , the other from mother , the gene of the father is dominant over the gene of the mother and it has given the baby sheep curly wool.
During fertilization the baby must have received the same set of genes as those of its father. If the baby has received a mixed set of genes then the genes of the father are dominant over the genes of the mother resulting in curly wool.
The fathers gene may be dominant due to environmental circumstances or other factors.
Answer:
Explanation:The baby lamb inherited its copies of the gene for wool shape from its father and not from its mother. Just like its father’s genes, those genes instruct for proteins that connect in ways that make its wool curly.
explain how the genus and species name of an organism is properly written
Answer: The binomial system of nomenclature is structured so that the scientific name of a plant consists of two names: (1) the genus or generic name, and (2) the specific epithet or species name. ... The genus name is always underlined or italicized. The first letter of the genus name is always capitalized.
Explanation:
Explain how depth of the ocean determines ocean topography.
Answer:
Currents and waves
Explanation:
Depending on the way that the currents are and the way the wind moves. This factor can change the way the graph determines depth.
Babies with very low or very high birth weight are less likely to survive. The graph shows the percentage of babies born at different weights.
A graph entitled Percentage of Babies born at Different Weights has weight in pounds on the horizontal axis, and percentage on the vertical axis. A small percentage of babies are born at the low and higher birth weights, and a greater amount are around 7 to 8 pounds.
Which statement is a valid claim that could be made using the data in the graph?
Directional selection is occurring because the graph favors an extreme.
Stabilizing selection is occurring because the average is favored.
Disruptive selection is occurring because the two extremes are favored.
Biodiversity variation is occurring because there is an increase in trait variation.
Answer:
C
Explanation:
Otherwise people wouldn’t have differences
Answer:
C!!! :))
Explanation:
I tookt the test and got it right.
In order to maintain homeostasis, it is most important for an animal to be able to ?
F increase its prey population
O respond to its environment
H change its habitat
o hide from its predators
Answer:
respond to its environment
Explanation:
What is this person male or female? Why?
(There’s only one x btw) :l
Answer:
I think it's a girl since there is only one X
hope this helps
have a good day :)
Explanation:
Which of the following returns blood to the heart? Arteries
Veins
Aorta
Ventricles
Answer:
Veins
Explanation:
Blood moves through many tubes called arteries and veins, which together are called blood vessels. The blood vessels that carry blood away from the heart are called arteries. The ones that carry blood back to the heart are called veins.
Viruses can be prevented by receiving a weakened form of the virus called a?
A)plastid
B)vaccine
C)antibiotic
D)fertilizer
griculture: Mastery Test
After many years of research Isabella presented her report in a scientific conference. Arrange the steps of her scientific work till she
presented her report.
She read and reviewed all the previous
articles about increasing the nutritional
value of potatoes
Control groups experimental design
method was used
Isabella wanted to improve the nutritional
value of potatoes
She collected the relevant and required
data
She constructed a hypothesis about a
particular method
She presented her report
She submitted her proposal to her
universily, stating the purpose and time
required for the project
She reached a conclusion about her
project
0
局
Answer:
1. Isabella wanted
2.She read and reviewed
3.She constructed a hypothesis
4.She submitted her proposal
5.Control groups
6.She collected
7.She reached a conclusion
8.she presented
Explanation:
I got it right
What prevents a lake or ocean from freezing solid?
Answer:
The surface layer of the water freezes solid creating a barrier that insulates the ice below so that it keeps a steady temperature usually a few degrees above freezing (32 degrees).
Explanation:
Cancer cells are essentially cells out of control. They continuously go through Mitosis without stopping causing them to crowd other cells and eventually growing on top of each other forming a lump commonly referred to as a tumor. Based on your knowledge of mitosis what is one way you could develop a drug to treat cancer?
Include in your answer a detailed explanation of what you would do and why (5pts) also include labeled diagrams with your solution (5pts).
Answer:
Introduction
Does cell cycle control matter? If you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes.
Cancer is basically a disease of uncontrolled cell division. Its development and progression are usually linked to a series of changes in the activity of cell cycle regulators. For example, inhibitors of the cell cycle keep cells from dividing when conditions aren’t right, so too little activity of these inhibitors can promote cancer. Similarly, positive regulators of cell division can lead to cancer if they are too active. In most cases, these changes in activity are due to mutations in the genes that encode cell cycle regulator proteins.
Here, we’ll look in more detail at what's wrong with cancer cells. We'll also see how abnormal forms of cell cycle regulators can contribute to cancer.
What’s wrong with cancer cells?
Cancer cells behave differently than normal cells in the body. Many of these differences are related to cell division behavior.
For example, cancer cells can multiply in culture (outside of the body in a dish) without any growth factors, or growth-stimulating protein signals, being added. This is different from normal cells, which need growth factors to grow in culture.
Cancer cells may make their own growth factors, have growth factor pathways that are stuck in the "on" position, or, in the context of the body, even trick neighboring cells into producing growth factors to sustain them^1
1
start superscript, 1, end superscript.
Diagram showing different responses of normal and cancer cells to growth factor presence or absence.
- Normal cells in a culture dish will not divide without the addition of growth factors.
- Cancer cells in a culture dish will divide whether growth factors are provided or not.
Diagram showing different responses of normal and cancer cells to growth factor presence or absence.
Normal cells in a culture dish will not divide without the addition of growth factors.
Cancer cells in a culture dish will divide whether growth factors are provided or not.
Cancer cells also ignore signals that should cause them to stop dividing. For instance, when normal cells grown in a dish are crowded by neighbors on all sides, they will no longer divide. Cancer cells, in contrast, keep dividing and pile on top of each other in lumpy layers.
The environment in a dish is different from the environment in the human body, but scientists think that the loss of contact inhibition in plate-grown cancer cells reflects the loss of a mechanism that normally maintains tissue balance in the body^2
2
squared.
Another hallmark of cancer cells is their "replicative immortality," a fancy term for the fact that they can divide many more times than a normal cell of the body. In general, human cells can go through only about 40-60 rounds of division before they lose the capacity to divide, "grow old," and eventually die^3
3
cubed.
Cancer cells can divide many more times than this, largely because they express an enzyme called telomerase, which reverses the wearing down of chromosome ends that normally happens during each cell division^4
4
start superscript, 4, end superscript.
Cancer cells are also different from normal cells in other ways that aren’t directly cell cycle-related. These differences help them grow, divide, and form tumors. For instance, cancer cells gain the ability to migrate to other parts of the body, a process called metastasis, and to promote growth of new blood vessels, a process called angiogenesis (which gives tumor cells a source of oxygen and nutrients). Cancer cells also fail to undergo programmed cell death, or apoptosis, under conditions when normal cells would (e.g., due to DNA damage). In addition, emerging research shows that cancer cells may undergo metabolic changes that support increased cell growth and division^5
5
start superscript, 5, end superscript.
Diagram showing different responses of normal and cancer cells to conditions that would typically trigger apoptosis.
- A normal cell with unfixable DNA damaged will undergo apoptosis.
- A cancer cell with unfixable DNA damage will not undergo apoptosis and will instead continue dividing.
Explanation:
_______ Which vitamins and minerals must be listed on food labels?
a. vitamin D, vitamin C, iron and magnesium
b. vitamin C, calcium, iron and potassium
c. vitamin C, vitamin A, calcium and iron
You should fill out an incident report _____.
A. if a serious accident occurs.
B. any time an accident occurs.
C. if the injured person does not require medical attention.
D. if the employee asks for a copy for his lawyer.
Answer:
A
Explanation:
An incident report should be completed at the time an incident occurs no matter how minor an injury is.
how you can play your role to overcome the waste issue in your area?
(giving brianliest with extra points)
Answer:
Recycle and throw away approprite trash
Explanation:
Recycle and throw away appropriate trash.
i need help with biology if you’re willing to help pls lmk :)
Answer:
sddssa
Explanation:sa
Where are the instructions that control a cell's activities found?
A. DNA
B. mitochondria
C. ribosomes
Answer:
A. DNA
Explanation:
Nucleus. The nucleus, a substantial organelle that houses the cell's DNA, is referred to as the “command center” of the cell (deoxyribonucleic acid). Thus, option A is correct.
What is the main function of DNA?
The genetic information contained in the DNA is used by the nucleus to regulate all cellular functions, including growth and metabolism.
Today, DNA has three separate purposes: genetic, immunological, and structural, all of which differ greatly from one another and depend in different ways on the bases and the sugar phosphate backbone.
Genetic information is encoded in the nucleotide order along the backbone. Replication, information encoding, mutation/recombination, and gene expression are the four functions that DNA performs.
Therefore, DNA which is found in nucleus control a cellular activity.
Learn more about DNA here:
https://brainly.com/question/9440295
#SPJ5
¿Qué habría ocurrido con la mariposa del abedul durante la revolución industrial si no hubieran existido mariposas oscuras?
The space shuttle leaves the surface of the earth and reaches a height of 50,000 kilometers in 25 seconds. What is the average speed of the shuttle during this journey?
Select one:
200,000 km/s
20,000 km/s
200 km/s
2,000 km/s
Answer:
2000 km/s
Explanation:
the formula for speed is speed=distance/time, this is the formula that should be used here. 50,000/25, which equals 2,000
Substance A is a gas and substance B is a liquid, They are at the same temperature why is one gas and one a liquid
how does rock turn into soil
Answer:
Rocks turn into soil through the process of weathering.
Explanation:
Weathering is when rocks are broken down into smaller pieces
HELP right now please! No websites
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!
Answer:
It is the Large Vacuole.
Explanation:
I thought it was Lysosome (almost, maybe).