What hormonal change occurs after fertilization that causes the endometrial lining to remain intact so that the fertilized egg can successfully implant in it?

A. The pituitary gland secretes oxytocin, which maintains the endometrial lining.

B. The pituitary gland secretes follicle stimulating hormone, which acts on the follicles and stimulates them to produce progesterone.

C.The hypothalamus secretes gonadotropin releasing hormone, which maintains the endometrial lining.

D.The developing embryo secretes human chorionic gonadotropin, which prevents the corpus luteum from disintegrating.

E. The developing embryo takes over the production of progesterone after the breakdown of the corpus luteum to maintain the endometrial lining.

C When magma comes into contact with ocean water it cools faster than when it reaches continental rock.

Answer: B is the correct option. Yes, this is a mutation in her DNA of her somatic cells.

When the woman develops cancer due to prolonged UV radiation, the cancer cells spread and eventually all the somatic cells which are non-reproductive egg or sperm cell also carry the DNA of the cancer cells. So the future children will have these mutations in their cells. Mutation in the BRAF gene is the main cause of several types of melanomas. The other gene that is commonly mutated is p53 which is a tumour suppressor gene in normal conditions and on mutation it causes cancer causing the tumours.

Answer:

Inactive

Explanation:

Pyruvate dehydrogenase controls the production of acetyl CoA.  This conversion is regulated by regulators like ADP, ATP, AMP and NADH. While ADP and AMP are regulators that enhances the activity of the Pyruvate dehydrogenase enzyme, regulators like ATP and NADH reduces the activity of the Pyruvate dehydrogenase enzyme. Thus, when the ratio of ATP to ADP is high then the inhibitory regulator i.e ATP is in large amount than the ADP. Hence, ATP reduces the activity of enzyme Pyruvate dehydrogenase and makes it inactive.

C 74.0°F. The median high temperature for the year in Sacramento is 74.0°F.

To find the median, we first need to order the temperatures from lowest to highest:

52, 52, 60, 64, 64, 71, 77, 80, 87, 87, 92, 94

Since there are 12 temperatures (an even number), the median will be the average of the 6th and 7th numbers.

Median = (71 + 77) / 2 = 74

Therefore, the median high temperature for the year in Sacramento is 74°F.

Complete Question:

The table shows the average high temperatures of Sacramento, California for a year. What is the MEDIAN high temperature for the year in Sacramento?

A 71.0°F

B 73.3°F

C 74.0°F

D 77.0°F

Answer:

0-

Explanation:

The statement which is describes an effect of the low density of frozen water in a lake when water in a lake freezes, it floats, providing insulation for organisms below. Thus, option C is correct.

Density has been defined as mass per unit volume it means that mass is present in one meter cube.

S.I unit of density is kg/meter^3.

Mathematically,

Density = Mass/Volume.

Water has been defined as the water present under the ground and water below the soil as well as in the crack of the earth. The percentage of freshwater in the world could be 30%. There are mainly three types of groundwater and these are hand-dug wells, springs, and drilled boreholes.

The water stored under the ground are obtained from rain and stored in the ground so that it can be used later. Ground water has very clean and fit for drinking and the reason could be that the soil present on top and work as filter and the groundwater has free from all microorganisms.

Therefore, The statement which is describes an effect of the low density of frozen water in a lake when water in a lake freezes, it floats, providing insulation for organisms below. Thus, option C is correct.

Learn more about density here:

https://brainly.com/question/15164682

#SPJ2

Answer: The answer is A) the cristae of mitochondria

Explanation: Mitochondrial cristae are folds of the inner membrane of the mitochondria that propagate into the lumen. This membrane system has the function of carrying out the transport of electrons during cellular respiration, so it must host a series of enzymes that are responsible for carrying out this transport, which results in the synthesis of ATP (energy) that will be used by the cell for different processes. For this, the surface of this membrane must be wide, and this is achieved thanks to these folds or cristae. The amount of mitochondrial cristae that will have a cell mitochondria depends on the energetic needs of it.

The first stage in the listening process is receiving, which involves the intake of auditory and visual stimuli. This stage is crucial for accurately gathering information before moving on to understanding, remembering, evaluating, and responding to the message.

The first stage in the listening process is receiving. This initial phase involves the intake of auditory and visual stimuli through our senses. In this stage, we primarily gather information needed for listening through our ears and eyes. The capacity to see a person's face when we listen to their voice, for example, allows us to pick up on nonverbal cues such as facial expressions and eye contact. These visual elements play a crucial role in how we interpret messages. The absence of these cues in text-based or audio-only communication can make it more challenging to grasp the full context or meaning of the messages we receive.

This stage is foundational since before we can understand, remember, evaluate, or respond to what we've heard, we must first accurately receive the information. It involves not just listening to the words spoken but also observing visual cues and integrating them to form a coherent understanding of the message being communicated. Without effective receiving, the subsequent stages in the listening process can be significantly compromised.

Following the receiving stage, the listening process continues with understanding, remembering, evaluating, and responding. Each of these stages builds upon the preceding ones, highlighting the complexity and non-linear nature of listening as a cognitive, behavioral, and relational process.

Meiosis is the process that results in the production of haploid gametes, making the statement (a) true. It involves two rounds of division, producing four unique haploid cells that are essential for sexual reproduction.

Meiosis is indeed the process that results in the production of the haploid number of chromosomes, so the correct answer is (a) true. During meiosis, a diploid cell undergoes two rounds of nuclear division to produce four genetically unique haploid gametes. The sexual reproduction cycle begins with this essential step, as gametes are necessary for the fertilization process. In the first round of division, called meiosis I, homologous chromosomes separate, and in the second round, called meiosis II, the division of sister chromatids occurs, akin to what happen in mitosis. This process ensures the resulting gametes have half the number of chromosomes as the original cell, which is a critical aspect for maintaining the species-specific chromosome number during sexual reproduction.

The increase in concentration of a substance such as toxic chemical in the tissue of an organism at successively higher level in food chain can be refers to as Biological magnification or Biomagnification. It also a process where certain substances such as heavy metals or pesticides find their way into the rivers, lakes or ocean and then move up the food chain in greater concentration as they are incorporated into diet of aquatic organisms.

Answer:

i believe it is a  

Explanation:

The scientific knowledge given by Carl Woese is highlighted here in that it can be modified. therefore, option "A" is correct.

Carl Woese introduced the three-domain system in 1990. He divided the organisms into three domains: Archaea, Bacteria, and Eukarya. prokaryotes were divided into two domains therefore Archaea and Bacteria.

The Archaea domain consists of organisms that are the oldest living and can live in extreme environmental conditions. In the domain, bacteria consist of organisms that lack membrane-bound organelles whereas in the domain eukarya consist of protista, fungi, plants, and animals.

Therefore, Carl Woese's three-domain system includes Archaea, bacteria, and eukarya.

Learn more about the three-domain system, here:

https://brainly.com/question/30061346

#SPJ3

Nuclear power plants primarily use uranium-235 to generate energy through the process of nuclear fission. U-235 must be enriched for use in nuclear reactors, and it is a nonrenewable resource. Plutonium-239 can also be used in reactors, primarily in breeder reactors, which can create additional fissile material.

Nuclear power plants use the radioactive element uranium-235 to create energy. U-235 is a fissionable isotope that can sustain a chain reaction within a nuclear reactor. This reaction releases heat and radiation, which is then used to generate electricity. Uranium is a nonrenewable energy source found in rocks worldwide, but it is relatively rare. In power plants, uranium must be enriched to increase the concentration of U-235, typically to about 5% of uranium mass to facilitate the fission process without the possibility of an explosion.

When a uranium nucleus emits an alpha particle, it transforms into a different element while conserving charge. In this case, the resulting nucleus is thorium.

There are a few fissionable isotopes suitable for a fission reactor, including uranium-233, uranium-235, and plutonium-239. Of these, U-235 is naturally occurring and is the isotope most commonly used in commercial nuclear reactors, such as the pressurized water reactor design. Breeder reactors can create additional fissile material, such as plutonium-239, offering a way to extend the use of available nuclear fuel.

When you use your brakes to stop your bike from rolling backward down a hill, you're accelerating in a direction opposite to your motion, which in this context is uphill. This is due to the concept of negative acceleration or deceleration.

When you start to roll backward down a hill on your bike and use your brakes to stop, you accelerate in the direction opposite to your motion. This is due to the principle of negative acceleration or deceleration. Just like the subway train in Sao Paulo, Brazil, when you use your brakes, your bike decelerates, which can be thought of as accelerating in a direction opposite to its motion. Essentially, acceleration is a change in velocity, and velocity is a measurement of speed in a certain direction. Therefore, when you use your brakes to stop your bike rolling downhill, you are changing your velocity, meaning you are accelerating. In this case, because you are opposing your initial movement, the direction of the acceleration is uphill. This is analogous to instances where cars slow down or trucks use their brakes downhill to control their speed where energy is converted to prevent conversion into kinetic energy.

https://brainly.com/question/33562253

#SPJ2

The correct answer is: C. Convective zone, chromosphere, corona.

The Sun can be divided into six layers (from innermost to outermost):

1. Core-the interior of the Sun which produces heat and light

2. Radiative zone-high density; radiation

3. Convective zone

4. Photosphere – visible layer

5. Chromosphere

6. Corona

Answer:

Convective, chromosphere, corona best fits the order in which the sun is layered

Explanation:

Final answer:

Plastics are made from petroleum-based products, which are finite resources being depleted, therefore, they are classified as nonrenewable resources. Therefore, the correct answer is D.

Explanation:

Plastics are synthetic materials commonly derived from petrochemicals such as crude oil. Because plastics are made from oil, which is a finite resource with reserves being depleted, a reasonable conclusion based on this information is:

D. Plastics require oil and therefore are nonrenewable resources.

The production of plastics does indeed lead to an increase in carbon emissions and contributes to global warming, as it requires a significant amount of energy and resources. The immense scale of plastic use and production has led to an increase in environmental concerns, including waste management, pollution, and depletion of natural reserves. While plastics may replace heavier materials like metal and glass, their environmentally friendly status is challenged by their impact throughout their lifecycle and their non-biodegradable nature, leading to large amounts of persistent waste.