Answer:
Progesterone activates C-Mos, which phosphorylates maturation promotion factor (MPF)
Explanation:
Progesterone is a steroid hormone that is well known to be involved in embryogenesis, which is secreted by the corpus luteum. During meiosis I, steroid production is limited to progesterone. Moreover, the oocyte maturation factor Mos (cMOS) is kinase expressed in germ-line cells when it is activated by progesterone, where this factor controls oocyte maturation and the arrest at the metaphase of meiosis II by modulating the activity of the Maturation-promoting factor (MPF). This protein (MPF) is a cyclin-dependent kinase complex that promotes mitotic entry via phosphorylation of different proteins required during mitosis.
Plzzzzzz help A teacher has been told that students like when they do activities that get the moving she asks her students what they think? Is it a observational study or a survey or a experiment?
Answer:
Its a observational study.
Explanation:
Because of the observation that the other teacher made
Which of the organisms below represents a herbivore?
A northern elephant seals
B kelp
C sea otters
D kelp crabs
Answer:
D
Explanation:
Kelp Crabs
Antibodies are composed of two types of peptides, heavy chains and light chains. One of the major classes of antibody molecules is immunoglobulin G (IgG). Two heavy chains and two light chains form one IgG molecule. Classify each statement as describing the heavy chains, light chains, or both chains of IgG
a. form the antigen-binding site
b. contain multiple variable domains
c. are found in the Fab fragment
d. are found in the FC fragment
e. contain only one constant domain
f. contain multiple constant domains
g. contain only one variable domain
Answer and Explanation:
a. form the antigen-binding site ⇒ both chains
The antigen-binding site is formed by one hypervariable region of the light chain (VL) and one hypervariable region of the heavy chain (VH). So, both type of chains contributes to antigen recognition.
b. contain multiple variable domains ⇒ none
Both chains - light and heavy - contain only one variable domain (VL and VH).
c. are found in the Fab fragment ⇒ both chains
The Fab fragment is composed of portions of both light and heavy chains: each portion contains one variable domain and one constant domain. The Fab fragment binds specifically the antigen.
d. are found in the FC fragment ⇒ heavy chains
The Fc region is composed of portions of heavy chains (CH² and CH³), so it contains constant domains.
e. contain only one constant domain ⇒ light chains
Each light chain contains one variable domain (VL) and one constant domain (CL).
f. contain multiple constant domains ⇒ heavy chains
Each heavy chain contains three constant domains: CH¹, CH² and CH³.
g. contain only one variable domain ⇒ both chains
Both light and heavy chains contain one variable domain. The difference is given by the number of constant domains: light chains have 1 constant domain while heavy chains have 3 constant domains.
According to the endosymbiotic theory, large prokaryotic cells may have
engulfed smaller prokaryotic cells over 1.5 billion years ago. If the smaller
cells survived, the larger cells may have eventually evolved into eukaryotic
cells.
How would you describe the relationship between the original prokaryotic
cells?
A. Specialized cells in a single organism
B. Predator-prey
C. Parent-offspring
D. Parasite-host
Answer: b
Explanation:
Predator-prey is the kind of relationship the original prokaryotic cell have.
This theory explains the origin of eukaryotic cells from prokaryotic cells.Mitochondria and chloroplast are the leading example that support the theory.What is endosymbiotic theory?It states that eukaryotes arose as a result of a fusion of archean cells with bacteria.The archean engulfed but do not eat an ancient, aerobic bacterial cell.To know more about Evolution theories here
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What kind of connective tissue has a matrix that is strong and flexible with no blood vessel?
A) bone
B) adipose tissue
C) loose connective tissue
D) cartilage
Answer:
D cartilage
Explanation:
Cartilage is the kind of connective tissue that has a matrix that is strong and flexible with no blood vessel.
Cartilage has a firm flexible matrix that resists mechanical forces and is made up of groups of chondrogenic cells nucleated in a collagen matrix.
Cartilage can be described as a specialized connective-type tissue that is devoid of nerves, blood vessels, and lymphatic vessels.
These tissues allow the joints to move, protect the endings of the bones and act as support against eventual blows.
The flexibility and resistance of cartilage to compression allows it to function as a shock absorber.
There are three types of cartilage:
Hyaline cartilage contains type II collagen in its matrix.Elastic cartilage includes type II collagen and elastic fibers.Fibrocartilage has thick and dense type I collagen fibers in its matrix, which allow it to withstand considerable tensile forces.Therefore, we can conclude that cartilage is the kind of connective tissue that has a matrix that is strong and flexible with no blood vessel.
Learn more here: https://brainly.com/question/15718905
Suppose your friend investigated the color of pea pods and concluded that green pods (G) were dominant over yellow pods (g). What experimental evidence would be needed to support this conclusion?
Plzzzzzz help Scientists track a flock of
for three years to learn their
migratory patterns.
Is it a experiment or a Observational Study?
Dr Mano is a researcher who thinks that the poor performance of the students at his school is due to excessive alcohol intake. What scientific steps can he take to best study his assumptions
Answer:
to design an experiment aimed at testing the null hypothesis. Finally, it is required to apply a statistical measure in order to reject or accept the null hypothesis
Explanations:
The scientific method consists in the first place in posing a question that can be used to explain an observation from the real world. This question needs to be subsequently explained by a working hypothesis. In this case, the working hypothesis may be "the poor performance of the students is associated with alcohol intake". Then, it is required to design an experiment in order to confirm or reject the null hypothesis. In this case, the null hypothesis would state that there is no relationship between both groups. The further experiment would consist of testing the performance of the students that consume alcohol versus students that don't consume alcohol. Finally, the results obtained from the experiment must be analyzed by using a statistical measure such as, for example, the p-value, which enables to accept/reject the null hypothesis by assessing the significance level of the results.
What is the name of the gas, name given by Lavoisier, involved in the combustion of matter?
Group of answer choices
Hydrogen
Air
Phlogiston
Oxygen
Answer:
oxygen
।।।।।।।।।।। ,,,,,,
True or False: People have no influence on biodiversity.
This is for biodiversity
Answer:
Explanation:
False
eagram de ensan energy Pyramid
H
G
F
E
suverom the amount of available energy
3
c
mams the same
Answer:
i don't know what is this may other help you
The California Mussel ( Mytilus californianus ) is the natural prey of the shore crab ( Carcinus maenas ). Study the graph above. Why would a crab adapt to having larger claws according to the graph?
a. Larger claws would help the crab camouflage in the rocks so the mussels won’t see them.
b. Larger claws would help the crab swim fast in a rough current toward where the mussels are hiding.
c. Larger claws would help the crab crack open the shells of the mussels so the crab can eat them.
d. Larger claws would scare away the mussels with thicker shells causing the crabs to choose a new food source.
Answer:
The correct answer is - c. Larger claws would help the crab crack open the shells of the mussels so the crab can eat them.
Explanation:
The graph (attached) states that the two variables size of claws of the crabs depends on the thickness of the shell of mussels. With the increase in the thickness of the shell of the mussels the size of the claws of crabs also increases and becomes larger.
The most likely explanation of this change would be adapting according to the change in the shell of the crab as they require to crack their shell to eat them as mussels are the primary food source of these crabs.
What are the Everglades?
Answer:
For example, the Everglades ecosystem provides drinking water for one-third of Floridians and irrigation for much of the state's agriculture. The wetlands improve water quality by filtering out pollutants and absorbing excess nutrients, replenish aquifers, and reduce flooding.The Everglades is a unique treasure found in South Florida. The Everglades is the largest remaining subtropical wilderness in the United States. It consists of 1.5 million acres of saw grass marshes, mangrove forests, and hardwood hammocks dominated by wetlands. It is home to endangered, rare, and exotic wildlife.
The text box shows observations made of an unknown organism. Based on this information, the organism most likely belongs
which kingdom?
Answer:fungi
Explanation:it’s on quizlet
Which organelle is like the brain of the cell? vacuole O endoplasmic reticulum O cytoplasm O nucleus
Answer:
nucleus
Explanation:
i remember this from science.
Nucleus is the main control center of the Cell.
Ferns obtain their food:
from spores
from the ground
by photosynthesis
from other plants
NEED HELP NOW
Which option identifies the kind of food represented in the following scenario?
The Bergman family has orchards all around town and they sell their fruit to several grocery stores and carryouts in the region.
packaged and processed
ready-to-eat
processed to preserve
minimally processed
Answer:
Minimally processed
Explanation:
Foods are said to be minimally processed when they undergo a little treatment so as to preserve them. These treatments might involve the application of heat, drying, and refrigeration so as to preserve them before consumption. Most fresh-cut fruits, vegetables, grains, legumes, dairy products, etc., fall under this range.
These kind of foods still contain a good amount of their nutrients as their original content are not lost due to excessive processing.
Can someone help me out
Answer:
I think meteor or asteroid. I may be wrong but I'm trying to help out!
I NEED ASAP PLS 20pts‼️‼️
Answer:
what are the options
Explanation:
Why would farmers plant alfalfa that has less economic value
answer:
because it benefits the soil. the long alfalfa stand life also gives the soil a chance to rest from frequent field crop rotations, helps provide nitrogen for subsequent crops, and improves soil tilth. this helps prevent pesticide and sediment movement to natural waterways.
good luck :)
hopefully, this helps
have a great day !!
why do you think William Morgan invented the sport mintonette? what do you think is the purpose?
Answer:
Originally called 'Mintonette', the game of volleyball was invented in 1895 by William G Morgan, in Holyoke, Massachusetts at a YMCA. ... It was because of his role that Morgan had the opportunity to direct numerous programmes, exercises and sports classes for male adults.
name the Chamber that receives the blood first
Answer:
Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where it becomes oxygenated. The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium blood flows into the left ventricle.
Explanation:
mark me brainliest, please
Many rainforests are found in the tropics, but only a few are found in cooler temperate zones. What makes a forest a rainforest?
A. They always contain very large rivers or lakes.
B. They produce more oxygen than normal forests.
C. They have a canopy of trees and a great deal of precipitation.
D. They have a large variety of animals that are not found elsewhere.
help and answer all questions in order and i'll give you brainliest
Answer:
1. Bb
2. b is the Recessive.
3. B is the Dominant.
4. BB, Bb, and bb.
5. bb
6. Bb and BB
7. Bb
8. Rr and rr: 50% chance for Rr and 0% chance for rr.
9. HH and hh: 0% chance for HH and 50% chance for hh.
10. Aa and Aa: 50% chance for both.
Explanation:
Which two atoms form an ionic bond?
A. Sodium and bromine
B. Two oxygen atoms
C. Two sodium atoms
D. Fluorine and chlorine
All of the visible color light waves together make up white light.
Answer: True
TRUEEEEE!!!!!!!!!!!!!!!!!!!
Answer:
True
Explanation:
Think of the Pink Floyd logo lol
Name some animals that have pulmonary respiration like man
Answer:
Sloths, Lungfish, Dolphin, elephant
Explanation:
compare the six nutrients of life for farm animals (water, protein, carbohydrates, fats, vitamins, and minerals).
Answer: This should help
pdf-89471-356-1957=50=571=35--6563t713-9t58
Explanation:
The geological time scale is like a..
a. map of Earth's surface
b. calendar of Earth's history
C. relative dating
d. cast fossil
Answer:
calender of earth history
Explanation:
The geologic time scale is the “calendar” for events in Earth history. It subdivides all time into named units of abstract time called—in descending order of duration—eons, eras, periods, epochs, and ages.
Question 1 of 10
Which behavior is learned?
A. A robin builds a nest using mud, grass, and small twigs.
B. A pigeon begins visiting a local park to look for dropped crumbs.
C. A turtle pulls into its shell when it first encounters a dog.
D. A baby kitten drinks its mother's milk when it's hungry.
Answer: B. A pigeon begins visiting a local park to look for dropped crumbs.
Explanation: