what is pepsinogen and how does it helps in digestion of protein ? ​

Answer:

Pepsinogen is a powerful and abundant protein digestive enzyme secreted by the gastric chief cells as a proenzyme and then converted by gastric acid in the gastric lumen to the active enzyme pepsin.

Explanation:

The role of pepsin and its precursor in protein digestion was first described in the 19th century.

Answer:

i hope it is helpful .................

What effect does mitosis have on the diploid chromosome complement?

What is this organelle

________ cells contain homologous pairs of chromosomes.
A.Haploid
B.diploid
C.tetraploid
D.gametes
E. sex cells

Assignment: Adaptations to New Environments Exploration

Directions: Read the descriptions of the four islands presented in the lesson.
1. List two new traits that each new species of rat might demonstrate as it adapts to the conditions on each island.
2. Introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment.




List the traits of each new species of rat

The rat on Island A:

1.

2.

The rat on Island B:

1.

2.

The rat on Island C:

1.

2.

The rat on Island D:

1.

2.
Describe a challenge that would be encountered and a success of one of the new rats to another new environment (example: the rat living on Island B now moves to Island D).


Island A
The island is fairly flat with an occasional hill. The ground is made of soft dirt, and several species of shrubs grow toward the center of the island. There is no animal life on land, but the water around the island is teeming with fish. The island is surrounded by a coral reef, and the shore is sandy with no algae growing on it. Freshwater is available.
Island B
This island has a rocky shoreline. Numerous tide pools dot the island along the shore where the wave action is somewhat sheltered by rocky outcrops. The tide pools host barnacles, abalone, sea urchins, and crabs. Algae grow all around the island; however, the growth of algae is quite sparse in the tide pools where the various animals feed. The current is quite strong along the rocky outcrops where the algae grow best. Freshwater is available.
Island C
The island is somewhat barren. A few species of cactus thrive on the bare rocks, and a large, cactus eating tortoise inhabits the island. A species of very large birds nests on the island annually. The birds build their nests on the rocks and protect their eggs from the sun by standing over the nests with outspread wings. The nests are always found on the windy side of the island, which is somewhat cooled by offshore breezes.

Island D
This island is an extinct volcano. Vegetation on the island changes as the altitude increases. Grasses grow at the base of the volcano, but farther up the volcano’s slope, the grasses give way to low shrubs. Halfway up, the island becomes quite lush; tropical plants and trees dominate the landscape. At this altitude, the island experiences frequent rain showers. Two species of birds inhabit the island. One is a raptor that preys on the smaller birds. The other fishes the waters approximately one mile offshore. Both of the bird species nest in trees.

pls help i need a paraghaph for DNA

compare and contrast animal cells, plants cells and prokaryotic cells​

PLEASE HELP NEED ANSWER AS SOON AS POSSIBLE

Match the terms related to enzyme actions with their descriptions.

substrate
active site
product
catalyst

the initial substance in a chemical
reaction that is changed

the substance that speeds up or helps
chemical reactions to occur

the location on an enzyme where
the initial substance reacts

the end substance that results from
a chemical reaction

How much carbon is stored in the atmosphere as CO2? HELP ME LIKE ASAP NO ROCKY

How can a wave that is so powerful and tall on land be
unnoticeable at sea?

During the reproduccion of a species of mice a mutation occurs that makes the hair of the offspring blend into its environment is this a postove or negative mutation? How do you predict this mutation will affect the long term survival of the species? Justry your response in two or more complete sentences in the essay box below.​

In ancient times, people believed Earth was the center of the Solar System. Which of the following makes the geocentric model impossible?
The moon revolves around Earth
o Earth's gravitational force is much less than the Sun's,
0 Orbits are elliptical, not circular,
There are other planets that are closer to the Sun.

Most prokaryotes and some eukaryotes have cell walls except for

Fungi
Single celled organisms
Plants
Animals

Large deposits of bones

physical records
both Bible and physical records
Bible account

What is the relationship between Rate of Enzyme Reaction and temperature?

I need help on 9,10 quick please ASAP

Please help! I'm struggling! Will give out BRAINILIEST if CORRECT!

Is Selective Breeding and Artificial Selection essentially the same thing? Explain why?

PLEASE GIVE OUT AN EXPLANATION BECAUSE I CANNOT ANSWER MY QUESTION WITHOUT AN EXPLAINTION !!!!

Pacific Ocean surface area

How do humans interfere in the carbon cycle?

Help me please i dont know how to this stuff

Which option describes a strong argument against the development of nuclear power ? A nuclear power company is proposing a nuclear power plant near a quiet , small waterside town . The company is promoting this development by stating that nuclear power does not produce pollutants .


Nuclear power is not ready - made

Nuclear power uses expensive raw materials .

Nuclear power is not as clean as using fossil fuels

Nuclear power produces waste that is hard to dispose of safely

GIVING BRAINLIEST!!! (NO LINKS PLS! LINKS DONT WORK FOR ME )
Which of these is a non-renewable resource?

A) Trees
B) Water
C) Fuel
D) Wind

All living things are classified into kingdoms based on specific characteristics. Which of the following are only characteristic of the plant kingdom?

Saturn's moon Enceladus orbits the planet at a distance of 2.38 x 10 m. Enceladus orbital
period about Saturn is 118,368 seconds. What is the mass of Saturn?

NEED ANSWER ASAP!!!

15 POINTS!!!!

A student investigating how experimental conditions affect plant growth grows two identical plants, one indoors and one outdoors. Three month later the plant grown indoors was 6 cm tall, and the plant grown outdoors was 18cm tall.

Part A: Identity one variable, other than light, that the student should have controlled in this experiment.

Part B: Explain why variables should be controlled in experiments​

HELP DUE IN 10 MINS!
In leaves of a plant, Solar Energy is first used to make??

A. Proteins

B. Carbohydrates

C. Lipids

D. Water

Describe and compare the types of scales used by scientists to measure and describe earthquakes.


Please help ​

.
What is the best way to classify a Goliath bird-eating spider?
omnivore
carnivore
herbivore

10 POINTS (and no its not 5 and I gave 10 its 10 and I gave 20)

In the Northern Hemisphere, winds associated with a high-pressure system blow

clockwise toward the center

clockwise outward from the center

counterclockwise outward from the center

counterclockwise toward the center​

____ drives both examples of
water movement.
A) Wind
B) Gravity
I can only pick one! Please help

Brain collects pond water, drinking water and dirty water to analyze and compare water quality. Which of the following scientific instruments can he use?

A Microscope В. Micrometer C. Telescope D Thermometer​